User Manual
Contents
1. oococconcoccoccocnnnnncnncononinnoncnnnnnoncnnnnnnnnonnnnanananananos 1 a e a e A 2 A o E A 3 Setting up exrTrader 4 IE Tn e p E ce serge tatoos e nee mites OOO 4 UTs Te e E eT DAD lince 4 Mac OS X UB UO atc ati a acne eee cr inka acacia 4 AGIOS H A e OE O EE O E EE E E 5 A ee e o Bl OOO 6 lexrT rader OpenEXR Layered Export 7 Render MOJO seins tai electa 8 NA Sae SWO DUE Suicida ao dono add 8 VIPER only save in SCreaMernet ccccccccseeccccceseeeccssececceusececseseeccuauscecsseeeeessueeeesaeeeeessuseeessuaeesereseuesenenes 8 O coset apaneacenenceanca cots atamteceredecetcasasancannecacuseansebesseneceasaseacaspenamesnaticeausasdettacaesesecaeoaetebes seasuasuantast 8 VIPERIDIS Pla GAMMA ee ee eee eee ee eee 8 SOS rare endear E nn oetsaoneseties 8 P a e Pe PO OOOO E EEA E E A 9 Delete PTOS Olinda ea dsdas 9 O PA EE E E R 9 R SCN P aeee E E E ice 9 ORE TTT 9 A e o SEO O E 9 O tp t BAS E T 10 BIS A E lion 10 Base Output_Base A 10 Base ON E TTT 10 AP Pe E po nn 10 GORP ES O Se eee anio cia 10 A EONA o a 11 BU Eo 5H A E e POE o E A 11 BT ooo E e A en 12 QUICK BUS ENDS ooo ibas 12 individ ual Settings for BUNE e A RA o nie uasem acdsee censa 12 ENADIO racial 12 Base Name uo id 12 Save as single Image File eee 12 Save Luminan e as RGB NA i n sedan 12 ES AAA aside A e UR ER o E o enaysaetinawcy cetseeNs 12 T e o e e Le O BES OPS E o PE OE eet 13 Minimum 7 Maxim isc iii 13 881151510 ES Oa e OE O2. Trader User Manual Version 1 3 2006 2009 by db amp w Bornemann und Wolf GbR Software License and Limited Warranty Agreement PLEASE READ CAREFULLY BEFORE DOWNLOADING INSTALLING OR USING THIS SOFTWARE THIS SOFTWARE LICENSE AGREEMENT IS A LEGAL AGREEMENT BETWEEN YOU EITHER AN INDIVIDUAL OR IF PUR CHASED OR OTHERWISE ACQUIRED BY OR FOR AN ENTITY AN ENTITY AND DB amp W BORNEMANN UND WOLF GBR BY CLICKING THE ACCEPT BUTTON OPENING THE PACKAGE DOWLOADING INSTALLING OR OTHERWISE USING THIS SOFTWARE YOU AGREE TO BECOME BOUND BY THE TERMS OF THIS LICENSE IF YOU DO NOT AGREE TO THE TERMS OF THIS LICENSE CLICK THE DO NOT ACCEPT BUTTON AND DO NOT DOWNLOAD INSTALL OR USE THIS SOFTWARE OTHERWISE 1 0 DEFINITIONS Licensee means you the User who agrees to all of the terms set forth in this Software License and Warranty Agreement by downloading installing or using this software Licensed Software shall mean the exrTrader plug in for LightWave 3D and documentation for exrTrader Software shall mean the exrTrader plug in for LightWave 3D and documentation for exrTrader 2 0 OWNERSHIP OF THE SOFTWARE The Licensee acknowledges and agrees that all of the computer programs and associated documentation are owned exclusively by db amp w Bornemann und Wolf GbR You agree that the price paid by you for the Software is a license fee granting you only rights set forth in this License Agreement 3 0 RESTRICTED
3. LWMN_RENDERTHREADS Render threads LW RenderThreads J LWNM_DEPTHOFFIELD Depth of field LW DepthOfField J LWMN_OUTPUTFILES Output files LW OutputFiles 3 February 2009 Version 1 3 Page 3
4. 2 Support for the refraction buffer available as of LightWave 3D 9 6 Version 1 3 Various options to customize the export for various compositing workflows e free point upgrades free support free beer 1 O k so we re still joking about the beer 3 February 2009 Version 1 3 Page 3 exrTrader User Manual Setting up exrTrader Setting up exrTrader Installation The download contains ZIP compressed files for all Add Plug ins platforms supported by exrTrader Extract the appropriate ZIP file for your platform Windows 32 bit 64 bit The exrTrader p file can be copied to any directory where you keep your plugins We recommend using a manually created plugin directory to separate third party plugins from plugins shipped with LightWave 3D This will simplify upgrades of LightWave 3D Now use the Edit Plug ins panel alt F11 of the Add Plugins menu item to add the plugin file exrTrader p to LightWave 3D LightWave will prompt you that it found 9 plugins in one file Lightwave 9 6 Mac OS X UB and CFM i 7 pa The OS X versions of exrTrader are x A included as a DMG Disk Image Double E S click on the icon to mount the disk image db amp w finest plugins CFM The exrTrader p file can be copied to any directory where you keep your plugins We recommend using a manually created plugin directory to separate third party exrTrader plugin Install app plugins from plugins shipped with Drop th
5. LICENSE exrTrader db amp w Bornemann und Wolf GbR grants Licensee a non exclusive non transferable non assignable non sub licensable revocable and restricted license to use Licensed Software in machine readable object code form only The licensee agrees to use the Software solely for the purposes as outlined in this Agreement The License Agreement does not convey to the licensee any ownership rights or any other interest in the software 4 0 SCOPE OF LICENSE This Software is licensed to be installed and used only in connexion with one LightWave 3D license A valid license must be purchased for each LightWave 3D license 5 0 LICENSE RESTRICTIONS No license is granted to Licensee for any other purpose and Licensee may not sell rent lent lease loan or sub license or otherwise encumber or transfer the Licensed Software in whole or in part to any third party for any purpose 5 1 Licensee may not duplicate or modify or translate or decompile or create derivative works of the Licensed Software or disassemble or reverse engineer script or protocols of the Licensed Software 5 2 Licensee agrees to use all reasonable efforts to protect the Software from unauthorized use modification re production distribution or publication 5 3 Licensee acknowledges that nothing in this Agreement gives Licensee the right to use any trademark trade name or service mark of db amp w Bornemann und Wolf GbR or any third party from whom db amp w Borneman
6. The section above the dividing line allows you to select the available buffers The section below the dividing line contains the individual settings for the selected buffer Y Final Render Buffer Rendered Colour Quick Buffer Enable This pop up displays all buffers currently available to exrTrader via the Lightwave3D SDK Buffers that are enabled Tor export have a check mark in front of them Buffers that are written to a single file have the text image behind them Note We think a couple of important buffers are missing from this list especially the coverage data object and surface Ids as well as normal and UV data Unfortunately the current SDK for LightWave3D provides no access to these 6 admit it didn t want to copy and paste the section over from the OpenEXR website The document is highly recommended to understand the capabilities of OpenEXR 3 February 2009 Version 1 3 Page 11 exrTrader User Manual Buffers Description A short description of the currently selected buffer is displayed here Quick Buffer Enable This pop up allows you to quickly enable disable some of the more commonly used buffers Individual Settings for Buffers The following settings are per buffer and define how a buffer will be processed by exrTrader Here you can also name the buffers specify their pixel type and save them as single image files 1 0 0 0 Enabled 101 This check box
7. but allows the user to pick which OpenEXR buffers are loaded into the RGBA channels Nuke Extended OpenEXR support reads up to 64 arbitrary channels of an OpenEXR file supports layers grouped channels PhotoShop CS2 Uses the same loader as After Effects 7 so basic RGBA support only Advanced support for OpenEXR is available from http www fnordware com ProEXR LScript The following commands can be issued from LScript or as a LightWave command 3 February 2009 Version 1 3 Page 19 exrTrader User Manual LScript Generic_Open_exrTrader Applies the exrTrader Image Filter if needed and opens the user interface Generic_Open_OpenEXRSettings Applies the OpenEXR Settings Master Handler if needed and opens the user interface Recommended Reading The OpenEXR website at www openexr com is packed with information about the OpenEXR image file format We recommend downloading the Technical Introduction to OpenEXR PDF and at least having a quick look at it We believe it explains some of the reasoning behind the design of exrTrader and also give a great introduction to the capabilities of the image file format 3 February 2009 Version 1 3 Page 20 exrTrader User Manual Supported Metadata Supported Metadata LightWave 3D can read and write metadata embedded in images as of version 9 5 exrTrader supports all of the metadata provided by LightWave 3D when using the exrTrader image loader and saver the exrTrade
8. same directory as the Output File and prepend the Version 1 3 Base name to the file name Examples To hopefully make this a bit easier to understand here is an example of how these options work Let s assume we re rendering out to images Ninja exr as the Output File The Format we re using is Name_0001 exr We want to save the Reflection buffer as a separate image file the Base name of it is Specular These will be the buffer image file written at frame 60 depending on the Single File Naming option Output Base T eX images Ninja_Specular_0060 exr Base Output_ H exr images Specular Ninja_0060 exr Base Output _ Base_ HH exr images Specular Ninja_Specular_0060 exr Base Output_ exr images Specular_Ninja_0060 exr The main file saved will in all cases be the same images Ninja_0060 exr Compression Uncompressed All compression options are lossless except for PXR24 which is lossy when ALE lossless saving 32bit float image data it cuts of the lower 8bit effectively cutting the APS lossless precision to 24bits 2IP lossless l l FIZ lossless exrTrader V1 1has been compiled to support OpenEXR Version 1 6 which FR24 lossy includes the following compression modes B44 lossy B444 lossy e Uncompressed Doesn t compress the data at all recommended for highest speeds if the hard drive is fast but also uses the most storage space RLE lossless Compresses the difference between a
9. shall remain in effect after termination or expiration hereof 8 0 DISCLAIMER OF WARRANTY 8 1 Licensed Software IS PROVIDED AS IS ALL EXPRESS OR IMPLIED CONDITIONS REPRESENTATIONS AND WARRANTIES INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY SATISFACTORY QUALITY FITNESS FOR A PARTICULAR PURPOSE OR NON INFRINGEMENT ARE DISCLAIMED EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD TO BE LEGALLY INVALID 8 2 db amp w Bornemann und Wolf GbR does not warrant that the operation of the Licensed Software will be uninterrupted or error free 9 0 LIMITATION OF LIABILITY 9 1 INNO EVENT SHALL db amp w Bornemann und Wolf GbR BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING ANY OR ALL GENERAL SPECIAL CONSEQUENTIAL INCIDENTAL INDIRECT OR PUNITIVE DAMAGES ARISING OUT OF THIS AGREEMENT OR USE OF THE LICENSED Software OR CONFIDENTIAL INFORMATION HOWEVER CAUSED ON ANY THEORY OF LIABILITY AND WHETHER OR NOT db amp w Bornemann und Wolf GbR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE THESE LIMITATIONS SHALL APPLY NOTWITHSTANDING ANY FAILURE OF ESSENTIAL PURPOSE OF ANY LIMITED REMEDY 9 2 Notwithstanding the foregoing any damages that you might incur for any reason whatsoever including without limitation all damages referenced above and all direct or general damages the entire liability of do amp w Bornemann und Wolf GbR and any of its suppliers under any provision of this Agreement and your exclusive remedy for all of the foreg
10. the license file is named exrTrader key If you use multiple licenses of LightWave 3D from a single network share the registration manager will only append edit licenses locked to the dongle installed on the host machine It will however manage multiple licenses allowing for a single registration file on your network share 3 Our key generator needs some sleep every now and then 4 Please back up your license file if you install a new version of LightWave into the same directory especially on OSX when installing the UB of LightWave 3 February 2009 Version 1 3 Page 6 exrTrader User Manual exrTrader OpenEXR Layered Export lexrTrader OpenEXRLayered Export Originally Posted by Exper Parameter 1 use it to change the value of Parameter 1 This is the flagship plugin It allows you LALA AS SMA AE AE to export any of the render buffers provided by LightWave into a single or multiple OpenEXR files OpenEXR is a quite complex image file format The user interface of exrTrader provides full access to the options provided by the image format From the top to the bottom it is basically divided into three areas The top covers basic workflow options Buffers Metad as well as global options for the exported image files l l Rendered Colour The middle section starting with the Buffers tab contains the controls for the individual buffers vw Enabled The Metadata tab contains option
11. to provide Licensee with updates bug fixes builds or error corrections collectively Software Updates If db amp w Bornemann und Wolf GbR at its sole option supplies Software Updates to Licensee the Updates will be considered part of Licensed Software and subject to the terms and conditions of this Agreement 6 3 The Licensee acknowledges that db amp w Bornemann und Wolf GbR shall have the right in its sole discretion and without incurring any liability to modify the Licensed Software or discontinue its use or distribution at any time and for any reason 7 0 TERM AND TERMINATION OF AGREEMENT This Agreement will commence on the date on which Licensee downloads Licensed Software the Effective Date and will remain in force until terminated 7 1 Licensee might terminate the license at any time by removing the Software from the computer and destroying the original Software and all copies 7 2 Upon termination or expiration of this Agreement Licensee must cease use of and destroy the Licensed Software any records or copies thereof and any related materials and provide to db amp w Bornemann und Wolf GbR a written statement certifying that Licensee has complied with the foregoing obligations within thirty 30 days 7 3 This license will automatically terminate if the licensee breaches any of the terms or conditions set out in this license agreement 7 4 Rights and obligations under this Agreement which by their nature should survive
12. ER exrTrader Buffers if it can display the exrTrader Buffers Adjustments to the buffer settings will be displayed Render time 56 ms Preview immediately VIPER also provides Preview Options that control how the preview is displayed blue_red_ninja lws by William Vaughan Preview Options VIPER can either display the Raw Buffer the buffer as rendered by Lightwave3D or the Processed Buffer as processed by exrTrader using the editing settings and as finally saved to disk These can also be displayed as a normalized preview In this case exrTrader will display all values into the buffer in the range between O and 1 0 black and white effectively making the complete range of values in a buffer visible Below Raw Buffer display vs normalized display of the Depth Buffer of the Ninja Scene Fe VIPER OpenEXR Buffers as Fe VIPER OpenEXR Buffers m 320240 bd 320x240 Raw Buffer T Raw Buffer normalized Fiender Render Add Preset i Add Preset Render time 353m Render time 372m2 Preview 3 February 2009 Version 1 3 Page 16 exrTrader User Manual Basic OpenEXR Loader and Saver Plugins BasicOpenEXRLoader and Saver Plugins exrTrader includes basic LightWave image loader and saver plugins that allow you to load and save OpenEXR images in any part of LightWave that loads and saves images These are included in exrTrader for free and may be used freely without registering exrT rader To ch
13. OM o OO EEE ene ala ese 13 Gamma CONSO urraca aa tieso cr 13 o e O E E OO vissieotnuanbieieoieialduliealanorinuts 13 vii FV EEE ENE E ce es aseo 14 un eE e li O o o A A 14 BF SC FY ccoo a a E E r E E A E A os 14 Scale Width Height eee eee ee 14 COTE A ee eee a eee ee eee eee ee 14 o nn nn ee eee eer 14 Fe nla Le TTT 15 POU SGC aeaa ro e e o AAE 15 exrTrader and VIPER 16 Preview e sen 16 Basic OpenEXR Loader and Saver Plugins 17 OPENEXR n lae Sureste retenida teria 17 COTS E TT 17 Nashe A E E AE E E E A E 17 Special Plugins 18 OpenEXR Dummy Saver sese eee eee eee 18 NE o arar 18 OPENEXR O Ctd T 18 Appendices 19 Network Rendering eee eee eee 19 Third party LightWave 3D plugins with exr Trader SUppOltL ococcoccccconconocioncnccociononononinnononons 19 OpenEXR support in third party apolications see eee eee ee 19 L A o e e eareabees 19 Recommended Reading esse sees 20 Supported Metadata Aaah een et een ine en eee een ee A ee eres 21 SIS IVS A ea TTT 21 Marker E Ge e ne ae A ere EE E ee eee ee ee eee 23 vill exrTrader User Manual Introduction introduction Quoted from www openexr com OpenEXR is a high dynamic range HDR image file format developed by Industrial Light amp Magic for use in computer imaging applications OpenEXR s features include e Higher dynamic range and color precision than existing 8 and 10 bit image file formats e Support for 16 bit floating point 32 bit f
14. Redistributions of source code must retain the above copyright notice this list of conditions and the following disclaimer Redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the documentation and or other materials provided with the distribution Neither the name of db amp w GbR nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT INDIRECT INCIDENTAL SPECIAL EXEMPLARY OR CONSEQUENTIAL DAMAGES INCLUDING BUT NOT LIMITED TO PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES LOSS OF USE DATA OR PROFITS OR BUSINESS INTERRUPTION HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY WHETHER IN CONTRACT STRICT LIABILITY OR TORT INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE This plugin uses zlib zlib general purpose compression library version 1 2 3 July 18th 2005 Copyright C 1995 2005 Jean loup Gailly and Mark Adler This software is provided as is without any e
15. USE DATA OR PROFITS OR BUSINESS INTERRUPTION HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY WHETHER IN CONTRACT STRICT LIABILITY OR TORT INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE Acknowledgements Software Design and Development Michael Wolf Management Dagmar Bornemann Documentation Michael Wolf Product Marketing Dagmar Bornemann This piece of software is dedicated to Zareh and Mike Special thanks go to our superb team of beta testers You ve all done a great job and your feedback time criticism and bug hunting skills were invaluable Special kudos to Phil for proof reading the manual We would also like to thank the teams at NewTek Europe and gadget for their kind support We also thank the LightWave community and the members of the LightWave Plugin Developers mailing list especially Marvin Landis and Ernie Wright for their insight into the more obscure depths of the LightWave SDK db amp w Bornemann und Wolf GbR Seyfferstr 34 70197 Stuttgart Germany www db w com info db w com vi Table of Contents Trademark and Copyright infOrmatiOn ccccccccsseseeeceeeeeeeeeeeeeeeeseeeeeeeaeeeeeseeeeeeeseeeeeeeasaeeeessaneeseeeseeeaaeeseeeaeeeaes IV PRE VO es e Len NG Masta o PO ene escola a aoe et ein sien awtda E caesar net A ements vi Introduction 1 Buffers amp Channels a Basic IntroductiON
16. ange of values in the buffer by the entered amount Gamma Correction New Feature This setting allows you to apply a gamma value to a buffer Version 1 2 To remove gamma applied to the buffer enter 1 gamma_value As an example 1 2 4 4167 removes a gamma of 2 4 from the buffer Un multiply by Alpha New Feature This option un multiplies the current buffer by the alpha channel This setting is needed for Version 1 2 compositing applications that don t support the additive merging of images This option is only available for buffers that contain three channels Channel Channel Name Since OpenEXR allows for the naming of every channel saved in the file you can use the Channel control to pick a channel and Channel Name to give it a new name This option is only available for buffers with more than one channel buffers with only one channel will ignore this setting and only use the base name A buffer with one channel saved as a single image will only contain the channel name Y which as far as the OpenEXR specifications go should be interpreted as a grey scale image by the reading application 3 February 2009 Version 1 3 Page 13 exrTrader User Manual Individual Settings for Buffers Flip S This is a per channel setting It will flip the values within the channel around the 0 value This is Version 1 3 similar but different from inverting a channel This is designed to flip the X Y motion chann
17. ange the settings for the OpenEXR Saver we ve included a Layout Master plugin that can be saved with any scene to change the saving options OpenEXRSettings yo OpenEXR Settings L JI U OpenEXR Settings is a Scene Master plugin that gets saved with a Lightwave3D scene It allows you to control the settings used by the OpenEXR saver since a Lightwave3D image saver does not have a way to display an options panel The available settings are Compression This defines the compression method used by the saver Please refer to the previous section on this subject for details Pixel Format The defines the pixel format for saving Again please refer to the previous Pixel Format documentation for details 3 February 2009 Version 1 3 Page 17 exrTrader User Manual Special Plugins Special Plugins OpenEXRDummy Saver The dummy saver has been designed to be used in conjunction with the exrTrader Buffer saver and third party render controllers that check render jobs for successfully rendered frames It doesn t save any image data but allows a render controller to retrieve the output file path and extension from a Lightwave3D scene If the scene only saves image data from the exrTrader Layered Export the render controller will still be able to check for rendered frames To use it use the OpenEXR Dummy exr image saver as the RGB Files saver in the render globals make sure that Use Render Path is activa
18. arty may assign or otherwise transfer any of its rights or obligations under this Agreement without the prior written consent of the other party except that do amp w Bornemann und Wolf GbR may assign this Agreement to any other company 10 3 If any part of this Agreement is found void and unenforceable it will not affect the validity of the balance of the Agreement which shall remain valid and enforceable according to its terms In the event that it is determined by a court of competent jurisdiction as a part of a final non appeal able judgement that any provision of this Agreement or part thereof is invalid illegal or otherwise unenforceable such provision will be enforced as nearly as possible in accordance with the stated intention of the parties while the remainder of the Agreement will remain in full force and effect and the parties will be bound by obligations which approximate as closely as possible the effect of the provision found invalid or unenforceable without being themselves invalid or unenforceable The waiver of any breach or default shall not constitute a waiver of any other right in this Agreement or any subsequent breach or default No waiver shall be effective unless in writing and signed by an authorized representative of the party to be bound Failure to pursue or delay in pursuing any remedy for a breach shall not constitute a waiver of such breach 10 4 Licensee agrees that the Licensee shall indemnify defend and hold
19. ayered Export is actually writing frames Third party LightWave 3D plugins with exrT rader support The following plugins for LightWave 3D support exrTrader natively ButterFlyNetRender ButterFlyNetRender is a network render controller http www liquiddreamsolutions com Janus Janus is a multi pass rendering solution for LightWave3D It allows you to quickly layer your objects and render them separately htto janus riot inc com PassPort PassPort is a powerful tool that allows you to have one set of beauty objects and one scene and generate unlimited outputs with all your data passes and scene layers all with minimal set up http www lwpassport com OpenEXRsupport in third party applications Here is a short list of third party applications mainly compositing applications and a summary of their ability to read OpenEXR Digital Fusion 4 Reads RGBA only Fusion 5 Reads RGBA and deep channels R G B A Z pixelCover objectlD materiallD U V NX NY NZ velX vel Y Any channel of the file may be assigned to any of the deep channels used by Fusion 5 a channel may only be assigned once a known bug in Fusion 5 01 Shake 4 As far as we re aware it only reads RGBA but allows the user to define which channels of the source file to use After Effects 7 CS3 Basic RGBA support Advanced support for OpenEXR is available from http www fnordware com OpenEXR Combustion 4 Basic RGBA support Toxic Only handles RGBA buffers
20. ded automatically if exrTrader is added to a scene Version 1 2 5 Obviously since there is no VIPER in the network renderer 3 February 2009 Version 1 3 Page 8 exrTrader User Manual Presets exrTrader searches for default presets in the user global and content presets in that order This means that a default content preset overrides a global default which in turn has precedence over a user preset Save as Preset This option allows you to save the current exrTrader settings to a preset Choose any of the three types and enter a name for the preset You can also use the small pop up to select any of the currently available preset names Delete Preset This allows you to select and of the available presets and delete them from the hard drive Output File This control allows you to select an output file for the buffer saver to write to Any extension and frame numbers of the selected file will be automatically removed You can only select an output file if Use Render Path is not activated Use Render Path If you select this option exrTrader will use the output file defined in the Lightwave3D render globals This option is quite important if used across a render farm in conjunction with the OpenEXR Dummy Saver described later in this manual Format This settings defines how exrTrader will append the frame number and file extension to the Output File These settings are identical
21. djacent pixels Fast to compress and decompress but in general only works well for images with large areas of solid colour e ZIPS lossless default This uses a ZIP type compression scheme to compress one scanline at a time Slow to compress fast to decompress and also offers a fairly high compression ratio 3 February 2009 Version 1 3 Page 10 exrTrader User Manual Compression e ZIP lossless Just like ZIPS except that it compresses 16 scanlines in one go This results in a slightly better compression compared to ZIPS but also slows down reading single scanlines from an image as some compositing packages might do in proxy or ROI DOD mode e PIZ lossless This is a wavelet based compression scheme that has a compression ratio that is comparable to ZIP S but is faster to compress on the other hand it is slower to decompress e PXR24 lossy A wavelet based compression scheme similar to PIZ 32bit float numbers are cut off to 24bit loosing 8 bits of precision e B44 lossy A compression scheme designed for the real time playback of OpenEXR images with a constant compression ratio e B44A lossy Just like B44 but solid areas Such as alpha channels have a better compression ratio These are explained in more detail in the Technical Introduction to OpenEXR available as a PDF at www openexr com Buffers This section of the interface allows you to individually select and edit buffers for exporting
22. e plugin onto the Install Application LightWave 3D This will simplify upgrades of LightWave 3D y Now use the Edit Plug ins panel alt F11 s m of the Add Plugins menu item to add the RTF plugin file exrTrader p to LightWave 3D UserManual CFM Version Readme rtf V1 3 pdf Universal Binary You can simply drop the exrTrader plugin icon onto the Install application to install it The plugin will either be copied to Current User installation option Library Application Support LightWave3D Plugins or All Users installation option Library Application Support LightWave3D Plugins In both cases LightWave 3D 9 6 will automatically pick up the plugins once you launch it You are of course free to copy the plugin file to another location and add it manually 2 Actually there are only 7 plugins LightWave 3D 9 0 counts the user interfaces for two of these extra though LightWave 3D 8 0 correctly reports 7 plugins 3 February 2009 Version 1 3 Page 4 exrTrader User Manual Installation Included Plugins Edit Plug ins Name Direct exrTrader is actually a suite of plugins for LightWave 3D Currently it consists of the following plugins these are the plugin names as displayed in the Edit Plug ins window by LightWave exrTrader OpenEXR Layered Export OpenEXR Settings exrTraderLoader OpenEXR exr OpenEXR Dummy exr exrTrader OpenEXR Settings To be able to use the exrTrader Layered Export
23. els to match the expectations of different compositing applications Metadata The metadata section of the interface allows you to store some additional information within your images Please feel free to contact us at support db w com if you require other metadata to be stored with your OpenEXR files In addition to the metadata exposed by the user interface exrTrader will also save the following information as metadata in your image files ComputerName name of the computer that rendered the image currently not available on OSX capDate Time and date when the image was created utcOffset offset of capDate from UTC LightWaveScene name of the LightWave scene that was used to render the image LightWaveBuild the Build number of LightWave used to render the scene Embed Preview Select this option to save a small preview image within the OpenEXR image files These will be saved as 8bit data Scale Width Height This option defines that scale of the preview image You may select any of the pre defined percentages or select Custom Size to be able to enter a Height and Width for the preview image Comment Here you can enter a comment that will be stored within the OpenEXR files saved by exrTrader Author You can use this control to enter the name of the person that created the images rendered with exrTrader in this scene The name will be stored in the image files as the owner 3 February 2009 Versio
24. enables the buffer for S saving 10 he Po Jn multiply Dy Alpha Base Name ae Bannel U epn This is the base name for the current Channel Name BE buffer If the buffer is saved as a channel in the main output file the channels will include this base name as a prefix i e Specular Red If the buffer is saved as a single image file the base name will be a part of the image file name as explained in the Single File Naming section Save as single Image File If this option is selected the buffer will be saved into its own image file instead of being a part of the main output file The name of the image file will be determined by the Base Name and the Single File Naming option Save Luminance as RGB FS This option is only available when Save as Single Image File is activated Version 1 3 By default exrTrader saves single channel OpenEXR images with a channel names Y As defined in the OpenEXR specifications this is a luminance channel that should be interpreted as greyscale data by reading applications Unfortunately this isn t the case some applications do not handle Y channel only images or don t handle them well This option will save the greyscale data as RGB data instead This increases the size of the image threefold but also maximizes compatibility Pixel Type This option allows you to define how the pixels of the current buffer will be saved in the OpenEXR file OpenEXR allows for all pixel t
25. er Manual Supported Metadata LightWave metadata tag Description OpenEXR Attribute Written by exrTrader image filter LWIMPAR_DATETIMEORIGINAL Date Time of original image taken This value should CapDate J not be modified by user program LWIMPAR_FOCALLENGTH Focal length of lens used to take image Unit is FocalLength J millimeter LWIMPAR_MAKERNOTE Maker dependent internal data Some of maker such See table of Maker Y as Olympus Nikon Sanyo etc uses IFD format for this Metadata area LWIMPAR_USERCOMMENT Stores user comment Comment Y editable LWIMPAR_APERTUREVALUE The actual aperture value of lens when the image was Aperture J taken To convert this value to ordinary F number F stop calculate this values power of root 2 1 4142 For example if value is 5 F number is 1 41425 F5 6 LWIMPAR_SUBJECTDISTANCE Distance to focus point unit is meter Focus J LWIMPAR_MAKE Manufacturer of recording equipment Make J LWIMPAR_MODEL Model name or model number of recording equipment Model y LWIMPAR_SOFTWARE Name and version of the software used Software J n a Name of the computer that has written the image ComputerName J n a Timezone offset for the capture date UtcOffset J n a Username Owner y 8 Not available on OSX 9 Unfortunately also not available on OSX 3 February 2009 Version 1 3 Page 3 exrTrader User Manual Supported Metadata Maker Metadata LightWave metadata tag Description OpenEXR Attribute Written by exrTrader
26. harmless db amp w Bornemann und Wolf GbR and its respective officers directors employees agents successors and assigns from any damage allegation cost loss liability or expense including court costs and reasonable fees for attorneys or other professionals arising out of or resulting from or in connexion with any breach or claimed breach of the terms of this Agreement or warranties provided herein Trademark and copyright information 2006 2007 db amp w Bornemann und Wolf GbR All rights reserved All brands company names and product names are trademarks or registered trademarks of their respective holder TRADEMARKS This paper may contain brands company names and product names of third parties and following are the requirements for identifying trademarks and registered trademarks of those third parties This list is not exhaustive and the paper may contain brands company names and product names of additional third parties All brands company names and product names are trademarks or registered trademarks of their respective holder LightWave and LightWave 3D are registered Trademarks of NewTek Inc IP Acknowledgements This plugin uses OpenEXR by ILM OpenEXR Copyright c 2002 Industrial Light amp Magic a division of Lucas Digital Ltd LLC All rights reserved Redistribution and use in source and binary forms with or without modification are permitted provided that the following conditions are met
27. image filter LWMN_COMPANYNAME Company Name LW Company y LWMN_FRAMENUMBER Current frame number LW FrameNumber J LWMN_FIRSTFRAME First frame number LW FirstFrame y LWMN_LASTFRAME Last frame number LW LastFrame y LWMN_RENDERTIME Render time LW Rendertime J LWMN_CAMERANAME Camera Name LW CameraName J LWMN_CAMERATYPE Camera Type LW CameraType J LWMN_ANTIALIASING Antialiasing LW AA J LWMN_LENS Camera lens name LW Lens LWMN_PARTICLEBLUR Particle blur On Off LW ParticleBlur J LWMN_MOTIONBLURTYPE Motion blur type LW MBType S LWMN_MOTIONBLURAMOUNT Motion blur amount LW MBAmount J LWMN_MOTIONBLURPASSES Motion blur passes LW MBPasses J LWMN_TOTALPOINTS Total points LW TotalPoints J LWMN_TOTALPOLYGONS Total polygons LW TotalPolygons y LWMN_TOTALMEMORY Total memory LW TotalMemory LWMN_FRAMESTEP Frame step LW Framestep y LWMN_RECONSTRUCTIONFILTER Reconstruction filter LW AAFilter J LWMN_FIELDRENDERING Field rendering LW FieldRendering J LWMN_RTREFLECTIONS RT reflections LW RTReflections J LWMN_ADAPTIVESAMPLING Adaptive sampling LW AdaptiveSampling J LWMN_STEREORENDER Stereo render LW Stereo J 3 February 2009 Version 1 3 Page 3 exrTrader User Manual Supported Metadata LightWave metadata tag Description OpenEXR Attribute Written by exrTrader image filter LWMN_RTREFRACTIONS RT refractions LW RTRefractions y LWMN_RADIOSITY Radiosity LW Radiosity J LWMN_RT TRANSPARENCY RT transparency LW RT Transparency y LWMN_CAUSTICS Caustics LW Caustics J
28. is omitted from the channel name but is used as part of the file name Make sure that the channel names are R G B or Y in the case of a single channel image otherwise more limited applications that expect the default channel names won t be able to read the image Some OpenEXR savvy applications such as Nuke can group the channels by their base name so they see BaseName as a group of channels or a layer The appendix contains a list of applications and their support for OpenEXR Compatibility exrTrader V1 3 is based on OpenEXR 1 6 1 exrTrader is compatible with LightWave3D 7 5 up to LightWave 9 6 It currently runs with the Windows 32bit Windows 64bit Mac OSX CFM and Mac OSX UB versions of LightWave lt has been tested with Windows 2000 the 32bit and 64bit versions of Windows XP as well as Mac OSX This is why you will see screenshots of both the OSX and the Windows ports in this manual Upon demand we can also port a Linux render node version Please visit http www exrtrader com or http exrtrader db w com for more up to date information 3 February 2009 Version 1 3 Page 2 exrTrader User Manual Features Features exrTrader has been thoroughly tested in production by us and our trusty beta testers The main features of exrTrader are e standard LightWave Loader supporting RGBA e standard LightWave Savers supporting all saveable image types except for palletized images e a scene type master plugi
29. loating point and 32 bit integer pixels The 16 bit floating point format called half is compatible with the half data type in NVIDIA s Cg graphics language and is supported natively on their new GeForce FX and Quadro FX 3D graphics solutions e Multiple lossless image compression algorithms Some of the included codecs can achieve 2 1 lossless compression ratios on images with film grain e Extensibility New compression codecs and image types can easily be added by extending the C classes included in the OpenEXR software distribution New image attributes strings vectors integers etc can be added to OpenEXR image headers without affecting backward compatibility with existing OpenEXR applications exrTrader makes the OpenEXR file format available for users of LightWave 3D providing basic image loading and saving as well as supporting the advanced features of OpenEXR such as multiple buffers stored in a single image file This manual covers the usage of exrTrader only We are planning on publishing further tutorials of how to use OpenEXR in various pipelines in the future though please check www exrtrader com for updates The capabilites of OpenEXR itself are explained extremely well at www openexr com The Technical Introduction to OpenEXR available for download as a PDF is well worth a read Buffers amp Channels a BasicIntroduction Let s start with some definitions A Channel is a single image component such as
30. n 1 3 Page 14 exrTrader User Manual Review Settings exrTrader Buffer Review Review Settings Actiwe Buffers No Output Filename specified This option will show you a window with a summary of all buffers that are being saved Buffer Final Render Rendered Colour out Any potential errors will be highlighted in ei Soe E di Buffer Depth Depth 2 Buffer red Review Settings tries to cover all potential issues when saving an image It may not succeed in all cases though If it reports no error and you still have problems saving please create a preset of the settings and mail them to us at support db w com we will update Review Settings to catch those issues as well About exrTrader About exrTrader This shows the about box of exrTrader including the version you are using 3 February 2009 Version 1 3 Page 15 exrTrader User Manual exrTrader and VIPER lexrTrader and VIPER exrTrader is unique in supporting VIPER to preview buffers prior to saving them out to disk It even previews the effects of the editing settings applied to the buffers To use VIPER make sure the Render Mode is set to either VIPER and Save Buffers or VIPER only and render a single frame of your scene The buffers stored in memory will use up at most 42 MB of RAM You can now open VIPER and select any of the buffers in the exrTrader interface The title of the VIPER window will read VIP
31. n for setting the image saver options which are saved in the scene file e adummy saver to enable network render managers to find saved files for success checks e an image filter plugin that allows to save arbitrary buffers to a single OpenEXR file that e either uses a custom output file or the RGB output file defined in the render globals e mimics LightWave s name formatting scheme e supports all compression schemes defined by OpenEXR e supports all output buffers generated by LightWave and exposed through the SDK e supports buffers that may consist of one i e Depth two i e Motion three i e RGB or more channels e offers separate naming options for channels and buffers in the OpenEXR file this will translate to buffer channel as defined in the OpenEXR specs Either may be blank e supports different pixel types per channel e offers the processing of buffers invert min max scale offset e supports OpenEXR metadata including aspect ratio comments previews e data window support for limited region renders e uses VIPER to preview buffers New Feature preview gamma support for VIPER Version 1 2 optional un multiplication by the image alpha e advanced preset system with default presets e network rendering support e plugins consist of one file per platform e basic OpenEXR functionality is provided for free New Feature e Support for LightWave 3D metadata as of LightWave 3D version 9 5 Version 1
32. n und Wolf GbR has acquired license rights 5 4 The License and other terms and conditions set forth in this Agreement shall apply to any and all versions and components of the Licensed Software furnished by db amp w Bornemann und Wolf GbR to Licensee during the term of this Agreement and all versions and components of the Licensed Software used by Licensee in accordance with this Agreement 5 5 The Licensed Software shall be used only by Licensee and only subject to the terms and conditions in this Agreement 6 0 TITLE PROPRIETARY RIGHTS AND DEVELOPMENT 6 1 The Licensee agrees that db amp w Bornemann und Wolf GbR and or its licensors own all right title and interest in the Licensed Software and in all patents trademarks trade names inventions copyrights know how and trade secrets relating to the design manufacture operation or service of the Licensed Software All rights not expressly granted are hereby reserved by db amp w Bornemann und Wolf GbR Unauthorized copying or use of the Licensed Software or failure to comply with the restrictions provided in this Agreement will result in automatic termination of this Agreement Nothing in this Agreement shall change db amp w Bornemann und Wolf GbR s or any of its licensors ownership rights to their respective intellectual property including but not limited to the Licensed Software 6 2 db amp w Bornemann und Wolf GbR is under no obligation to support the Licensed Software in any way or
33. not store them in memory for VIPER previews Note the Render Mode setting is only relevant when rendering in Layout When rendering using Iwsn ScreamerNet the network renderer of LightWave 3D exrTrader will always save the buffers and never store them in memory for VIPER VIPERDisplay Gamma New Feature This is the gamma value applied to buffers that are previewed in VIPER The gamma correction Version 1 2 is not applied to the buffers prior to saving them it is only for preview purposes Only buffers with three channels are gamma corrected for display Presets Using the Presets pop up you can apply any of your presets save your current settings as a preset or delete existing presets All Buffers global exrTrader has its own system to manage presets The main My Favourite Preset user reason for developing a custom system was to differentiate Final Composite content between user global and project content directory specific settings user presets are stored in the same directory where your LightWave3D configuration files are stored in a subdirectory called SimplePresets global presets are stored in the installation directory of LightWave3D on Windows on OSX UB they are stored in Library Preferences LightWave3D SimplePresets content presets are stored in the current content directory New Feature exrTrader supports the concept of default presets lf you name a preset default then it will be loa
34. oing shall be limited to the greater of the amount if any actually paid by you for the Licensed Software or U S 5 00 The foregoing limitations exclusions and disclaimers shall apply to the maximum extent permitted by applicable law even if any remedy fails its essential purpose 9 3 Licensee will hold db amp w Bornemann und Wolf GbR harmless from any claims based on Licensee s use of the Licensed Software for any purposes and from any claims that later versions or releases of any Licensed Software furnished to Licensee are incompatible with the Licensed Software provided to Licensee under this Agreement 9 4 Licensee shall have the sole responsibility to adequately protect and backup Licensee s data or equipment used in connexion with the Licensed Software Licensee shall not claim against db amp w Bornemann und Wolf GbR for lost data inaccurate output work delays or lost profits resulting from Licensee s use of the Licensed Software 9 5 Neither party will be liable for any indirect punitive special incidental or consequential damage in connection with or arising out of this Agreement including loss of business revenue profits use data or other economic advantage however it arises whether for breach or in tort even if that party has been previously advised of the possibility of such damage 10 0 GENERAL TERMS AND INDEMNITY 10 1 Any action relating to or arising out of this Agreement shall be governed by German law 10 2 Neither p
35. r image filter supports a selection of metadata The metadata written by the exrTrader image saver is provided by LightWave 3D The metadata written by the image filter is generated by exrTrader The following two tables list the metadata tags as documented in the LightWave 3D SDK their content and the equivalent attribute as saved and loaded by exrTrader The metadata supported by LightWave mirrors EXIF tags which have been designed for digital photography Tags that don t apply to OpenEXR images have been omitted Basic Metadata LightWave metadata tag Description OpenEXR Attribute Written by exrTrader image filter LWIMPAR_ASPECT x y Pixel Aspect native y LWIMPAR_PIXELWIDTH Actual scanned Pixel Width in mm xDensity y LWIMPAR_FRAMESPERSECOND Number Of Frames Per Second FramesPerSecond y LWIMPAR_BLACKPOINT Black Point Of Layer LWIMPAR_WHITEPOINT White Point Of Layer WhiteLuminance S LWIMPAR_GAMMA Linearity Of RGB Color always 1 LWIMPAR_PIXELXDIMENSION Valid image width native S LWIMPAR_PIXELYDIMENSION Valid image height native J LWIMPAR_EXPOSURETIME Exposure time reciprocal of shutter speed Unit is ExpTime y seconds LWIMPAR_FNUMBER The actual F number F stop of lens when the image Aperture y was taken LWIMPAR_ISOSPEEDRATINGS CCD sensitivity equivalent to Ag Hr film speedrate int IsoSpeed J 7 According to the specs OpenEXR stores linear images only 3 February 2009 Version 1 3 Page 3 exrTrader Us
36. s for B mere metadata stored with the image files a Save az single Image File such as a preview image or a comment e save Luminance as RGB The bottom section includes the About button to quickly check the Timen 0 0 Gig version number and Review Settings which gives you a quick overview of the 1 0 U applied settings and also highlights 0 0 potential problems with the applied 10 settings 1 0 The individual controls will be explained Un multiply by Alpha in the following sections p Flip Channel About exrTrader Review Settings 3 February 2009 Version 1 3 Page 7 exrTrader User Manual Render Mode Render Mode VIPER and Save Buffers YIPER only Save Buffers Only The Render Mode defines how exrTrader will handle the buffers when rendering in Layout exrTrader can display all buffers using VIPER after an initial render with exrTrader applied to the scene this requires up to 42MB of memory VIPER and Save Buffers This will save the buffers to disk and also store a scaled down version in memory to be used in conjunction with VIPER VIPER only save in Screamernet This will only store the buffers in memory but not save them to disk However rendering the scene using ScreamerNet will save the images This is to prevent the overwriting of existing images during test renders Save Buffers Only This option only saves the buffers to disk but will
37. ted in exrTrader and that the Format option of exrTrader matches the Format option in the Lightwave3D render globals Configure Menus Main window Command Menus T Mee Lert BF AE Cape Lele Hee TET 2000 exrTrader This is a Generic Layout Plugin that has been designed to be assigned to a short cut or added to a menu It will first check if exrTrader Layered Export is assigned to the current scene as an Image Filter If not exrTrader will be added Then it will open the user interface of the exrTrader Layered Export attached to the current scene OpenEXRSettings This is a Generic Layout Plugin that has been designed to be assigned to a short cut or added to a menu It will first check if OpenEXR Settings is assigned to the current scene as a Scene Master If not OpenEXR Settings will be added Then it will open the user interface of the OpenEXR Settings attached to the current scene 3 February 2009 Version 1 3 Page 18 exrTrader User Manual Appendices Appendices Network Rendering exr Trader is ScreamerNet compatible and allows for network renders You can install the plugin on any render node and it will render as expected It has been tested with a variety of third party render controllers including Butterfly NetRender and Spider The OpenEXR Dummy Saver has been designed to allow render controllers to check for saved frames from rendered scenes even if only the exrTrader L
38. the red channel of an image A Buffer consist of one or more channels for example Final Render is a buffer consisting of the red green and glue channels Depth is a buffer consisting of one channel Z Motion is a buffer with two channels X and Y this is velocity in pixels OpenEXR is quite a complex extensible image format and many compositing applications only support a subset of its features such as the following basic channels Red Blue Green Alpha Luminosity Depth Fusion 5 for example expects the following channel names by default fortunately this can be changed in the Fusion 5 image loader R G B A Z pixelCover objectID materiallD U V NX NY NZ velX velY This is why we decided to include a preset system to cater for the needs of different applications and pipelines N lt PGD 0 3 February 2009 Version 1 3 Page 1 exrTrader User Manual Buffers amp Channels a Basic Introduction If the buffers are saved to a single file they are named as follows BaseName ChannelName Either the base or the channel name may be empty in that case the is omitted but never both of them You cannot have duplicate channel names within the same file The Review Settings option tries to catch as many errors and omissions as possible lf your application only supports the most basic channels you can use the option to save a buffer to an individual image file In that case the Base Name
39. to the settings in the Lightwave3D render globals Single File Naming exrTrader by default saves all buffers into a single OpenEXR image file You may optionally save single buffers into a separate image file This option defines how these separate image files will be named Output is the file name as defined by the Output File control or the render global in Lightwave3D if Use Render Path is active Base is the base name of the selected buffer as described below in the documentation Hit is the frame number the amount of digits is defined by the Format option The underscores are only added if the Format option contains underscores as well exr The file extension is added only if the Format option contains the file extension 3 February 2009 Version 1 3 Page 9 exrTrader User Manual Single File Naming Output Base exr This will save the buffer image files into the same directory as the Output File and append the Base name to the file name Base Output_ exr This will create a subdirectory named after the Base name where the Output File is written and write the buffer image into that subdirectory Base Output_Base_ exr This will create a subdirectory named after the Base name where the Output File is written and write the buffer image into that subdirectory appending the Base name to the file name Base Output_ exr N 2 This will save the buffer image files into the
40. xpress or implied warranty In no event will the authors be held liable for any damages arising from the use of this software Jean loup Gailly jloup gzip org Mark Adler madler alumni caltech edu This plugin uses LightWrap a C wrapper for LightWave Copyright c 2007 2009 db amp w Bornemann und Wolf GbR All rights reserved Redistribution and use in source and binary forms with or without modification are permitted provided that the following conditions are met Redistributions of source code must retain the above copyright notice this list of conditions and the following disclaimer Redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the documentation and or other materials provided with the distribution Neither the name of db amp w GbR nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED INNO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT INDIRECT INCIDENTAL SPECIAL EXEMPLARY OR CONSEQUENTIAL DAMAGES INCLUDING BUT NOT LIMITED TO PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES LOSS OF
41. you will need to register and activate it with the activation code we will send you The basic loaders and savers are fully functional without registering The last two plugins are convenience tools you can assign to a shortcut or add to a menu to quickly apply the respective plugins to the current scene if they aren t applied already and open their user interface 3 February 2009 Version 1 3 Page 5 exrTrader User Manual Registration Registration Registration for exrTrader V1 0 Win32 WW Grt ader com 11111 Michael Walt db GER michael woltadb corn Once you ve installed the plugin apply the exrTrader OpenEXR Layered Export image filter plugin to your scene and the registration window will automatically open Enter your full name company name if applicable and e mail address Export the registration and attach it to an e mail to registration exrtrader com We will mail you an activation code within 24 hours after payment is received depending on the time difference You can now either import the keyfile attached to the activation e mail or copy and paste the activation key into the registration panel please make sure that the personal information is identical to the one submitted to us for the registration Your registration is now complete and you will see the interface of exrTrader allowing you to use it The registration file is stored in the same folder where LightWave 3D is installed
42. ypes to co exist in a single image file 3 February 2009 Version 1 3 Page 12 exrTrader User Manual Individual Settings for Buffers The Float pixel types allow for HDR buffers to be stored S2bit Integer Integer is currently of little use with the available buffers It is designed to be used 16bit Float with precise discrete values such as object or surface Ids 32bit Float We recommend to use 16bit Float for all buffers except for the Depth buffer which profits greatly from saving it at 32bit Float For more colour precision in compositing you can always switch buffers to 32bit float Invert This option will invert the current buffer Minimum Maximum These two options allow you to change the range of the data saved in the buffer For most buffers the Minimum and the Maximum define the range of values written out that correspond to the range of 0 1 0 the the buffer as passed by LW or raw buffer For the Depth buffer these are handled differently the Minimum and Maximum defined the distances in metres from the camera that correspond to the 0 1 0 range in the written buffer Expressed mathematically output Minimum buffer Maximum Minimum for all a buffers except Depth output buffer Minimum Maximum Minimum for the Depth buffer Offset Scale Offset and Scale allow further tweaking of the buffer values Offset is just added to the buffer values Scale scales the r
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