DPInstantTree R3 User Manual
Contents
1. This effect is best used with grass that has been created using gravity 45 TE 05 The grass swings from side to side beginning at the SP and along the WD and are also pulled up This effect is best used with grass that has been created using gravity 06 The grass swings from side to side beginning at the SP and along the WD and are also pulled down This effect is best used with grass that has been created using gravity 07 The grass is pulled up and down beginning at the SP and along the WD This effect is best used with grass that has been created using gravity 08 The grass swings along and against the WD beginning at SP and are also pulled up This effect can be used both on hairs which have been created with or without gravity 46 TE 09 The grass swings along and against the WD beginning at SP and are also pulled up and down 10 The grass is first pulled down beginning at the SP along the WD then against the WD and then back up again The Affect option defines which parts are affected when animating All will affect all points along the spline whereas Root will affect the angle of the spline itself 47 TR With the Offset value you can shift the motion of the wave within the animation The entered value equals the number of seconds in the animation Hair Solidity can be used to define the stability of the grass when it s affected by the wind The higher you set this value the les2. are identical to the options in the Transplant object Please refer to these to identify the functionality 40 Density Tab Set Object settings Button changes some settings in relation to the size of the currently used surface object All other options in the density tab are equal to the ones of the density tab in the Transplant object Please refer to the Transplant descriptions Appearance Tab Distance Variation Percentage slider This varies the distance and direction between the spline segments Length Float The maximum length of the spline blades Length min Float Minimum length for the length map Length Map Link Here you can drag a vertexmap into that works as a length map A weight of 100 means full length and O means minimum length Shader Link A shader can be used to define the length luminance UV Space Length variation Percentage Varies the length in positive and negative direction Sections Editor Render Integer slider The subdivision of the spline Spline point count Segments Alignment Tab Gravity Float Defines the strength of gravity Direction X Y Z Float Defines the gravity direction Angle variation Percentage Varies the angle of the whole blade tO Vertical Most of the time not used 4 T PlantVolume The PlantVolume is especially used in conjunction with Plantage It generates the polygonal blades This is much faster than Plantage generating the
3. GRASS ENGINE 37 T Plantage Object Tab All following objects are absolutely compatible to each other The plantage object is based upon the well known HairDepartment HD technology by BGS Group www bgs group de DPIT R3 takes this technology to a much higher level So you might know a lot of the Plantage settings already Plantage requires an object with a surface as a first child The grass hair will then be generated randomly on the surface of this object Render only Checkbox Will only generate the grass when you render your scene Load H Dep settings Button If you have old saved HD settings you can directly load them into Plantage by clicking on the button Non destructive Checkbox Will not remove the surface object Random Integer Seed value for the randomness Mode Drop down Splines Generates Splines Polygons Obsolete and should not be used any longer Advice You can then use the PlantVolume object with Plantage The reason is that splines are generated much faster than polygons and are displayed faster than polygons in the editor view Interpolation Drop down Intermediate points Integer See the Cinema 4D user manual gt Splines View type Drop down see Transplant object for more information Unlimited All blades are generated Roots in view Only the blades where the roots are visible All in view This will take all points in the view into account All other options in the Object Tab
4. antCollision Collision type Drop down Ellipsoid Ellipsoid Falloff shape Cuboid Cuboid Falloff shape Collision detection on splines All splines that are within the Ellipsoid Cuboid E C area are moved outside of it Size Vector This sets the dimensions of the Ellipsoid Cuboid You also have the chance to use a spline Falloff to control the strength The left side of the spline signifies the center of the E C or if you are using the Minimum value then the left side of the spline signifies the surface of the minimum E C and the right side the surface of the E C 49 T Keep Length Checkbox tries to keep the length of the each spline segment constant Iterations Integer slider Is a big helper concerning collision detection This value will force PlantCollision to go n times through the collision detection This is sometimes necessary if you are using Keep Length because Keep Length is evaluated after the collision detection So Iterations might reduce artifacts Usually an iteration value between 2 and 7 is more than enough Object Link The position of the E C is by default at the deformers position If you want it to move with another object simply drag an object from your Object Manager into the link field Note The ellipsoid collision detection should be prefered as the algorithm is evaluated much better than the Cuboid one Floor collision Checkbox Another but simple collision detection This
5. hen animating loops If you want to create a wave with a length of 200 units which should restart seamlessly after the end of a 1 second animation cycle the speed value has to be the same as the wave length 200 If the animation cycle has a duration of 2 seconds you need a speed value of 50 of the wave length Using a value of 100 would cause the wave motion to repeat two times within the animation cycle A3 7 There are 6 Functions that you can apply to the grass and that will animate it This is the core of PlantWind so read it carefully The Standard function type oscillates the hairs using a mathematical function and creating linear waves on a flat plane The direction of the hairs is defined by the horizontal plane of the wind direction The Axial function type is similar to the Standard function type and creates linear waves along the suface object The difference is that the direction of the grass is defined by the axis of the wind direction The Radial function type creates concentric waves along the grass The direction of the grass blades is defined by the plane vertical to the wind direction A pitch value of 90 Degree on a vertical surface plane would generate a result as shown in the example beside The Circular function type creates radial waves which move around a central point The direction of the grass is defined by the plane vertical to the wind direction A pitch value of 90 degree on a vertical
6. polation This is a huge advantage in contrast to the HD animation object for you could also use it with DPIT splines Another addition is that you can restrict the wind effect to a certain cuboid or ellipsoid area Simply set Restriction to Cuboid or Ellipsoid instead of Unlimited If you do so the Size vector field is enabled and you can set the dimensions of the restriction field The Strength of the Wind effect can be set in the according field with the same name If you have chosen Ellipsoid Cuboid E C as restriction you also have the chance to use a spline Falloff to control the strength The right side of the spline signifies the center of the E C or if you are using the Minimum value then the right side of the spline signifies the surface of the minimum E C and the left side the surface of the E C This way for example you could let a helicopter fly through a grasstield and only the grass near the helicopter will move stronger due to the wind the rotor blades produce The Minimum value will span another ellipsoid inside of the main ellipsoid Everything inside this minimum ellipsoid will receive the strength of the left side in the spline control The Velocity m s parameter defines at which speed the waves defined by the Wave length the length of the wave moving along the grass should move along the surface object The speed is directly linked to the Wave length and the duration of the animation This might be important w
7. polygonal blades as it would need to regenerate the splines each time a setting changed It therefore requires a child object as input that generates splines Plantage SplineGen You can also use a second diameter spline as second child of the PlantVolume object that defines the diameter shape Render Only Checkbox Forces the object to generate the polygons only for rendering Radius Float Defines the radius of the blades Sidefaces Integer Specifies the sidefaces count Banking Checkbox Banks the rotation of the polygonal hull Link Depth to Width Checkbox Links the depth spline graph Shape W to the width spline graph Shape H Shape W H Spline graph Here you can define the shape along the splines of the polygonal hull Auto Checkbox Automatically uses the full animation range so all frames of your scene for the caching Start Stop Time The start and end for the caching can be set in here Defined in frames Cache Mode Checkbox Uses the cached solution if you have created it already Calculate Cache Button Empty Cache Button Removes the cached solution 42 TR Polygon animation Checkbox Should only be used when the polygonal structure changes during animtion For example when the spline points change the polygonal hull will change This uses much more memory PlantWind PlantWind adds windeftects to any spline One segment or multi segment splines with or without inter
8. s the grass will bend in the wend Last but not least you can add an additional noise wave to the grass motion To activate it check the Use extra noise option The following value Noise strength defines the strength of the noise in percent Example If the main wave has a strength of 80 the value 0 250 25 will lead to a strength of 20 The next value to be set Noise length is the length of the noise wave This value also depends percentually on the length of the main wave PlantWind can be used on splines and PlantVolume polygons 48 TD PlantLength PlantLength s intention is to let you grow your grass or hair splines But of course you can use it on any other Cinema AD spline Length types Drop down There are 2 different types Point by Point amp Whole Spline Point by Point will grow the spline by minimizing the distance between the currently processed point and the point before If this method is for example used on a DPIT R2 pathspline then the shape of the DPIT object will not move with the length The Whole spline method though will move the points in the segment toward the first point of the segment The result is then similar to the behavior of R2 s own growth parameter The shape will move with the length Invert Checkbox Inverts the growth so it grows from the last point to the first point PlantLength is a deformer and must be inserted under the spline that you want to grow Pl
9. surface plane would generate a result as shown in the example beside The Twister function type creates waves similar to the circular one which however rotate around a central point like a whirl pool or eddy The direction the grass is defined by the plane vertical to the wind direction Note As it is very difficult to determine the wave length on grass planes with Circular or Twister functions the following rule can be used fo approximate the result Wavelength strength 2PI wave count 2PI 6 283 Most of the time guessing a good value is the fastest way though The Noise function type creates a random wave field along the grass The direction of the grass is defined by the horizontal plane of the wind direction PlantWind will additionally display the certain directions for you in the editor view 44 T All of the main functions do have 11 Subtypes Subfunctions that allow even more variation The subtypes are indexed from O to 10 00 The grass swings from side to side beginning at the starting position SP and along with the wind direction WD i Poa 01 The grass swings from side to side beginning at the SP and against the WD ae T i ari ih i D he i 02 The grass is pulled up along from the SP and along the wind directions WD This effect is best used with grass that has been created using gravity 03 The grass is pushed down along from the SP and along the WD
10. will use an object s global Y position for the collision detection If a spline point s global Y position lies under this value it s set back to the object s global Y position Floor object Link The Floor object must be dragged into the link field with the same name to activate the calculation Note Currently there is no full polygon collision detection 50
Download Pdf Manuals
Related Search