fluidShape node

Solid Matte: This is like Opacity Gain, except that the normally-calculated matte values are ignored in favor of the Matte Opacity setting. The entire matte for the object is set to the value of the Matte Opacity attribute. If there are transparent areas on the object, their transparency is ignored in the matte. Use this setting to composite an object with transparent parts, when you don't want the background to show through them.

Black Hole: The value of Matte Opacity is ignored, and all the matte for this material is set to be transparent. Use this when you are creating substitute geometry in a scene, which is standing in for objects in a background image that you will be compositing with later. Your stand-in objects will 'punch a hole' in the matte. This allows other computer-generated geometry to pass behind your stand-in objects. Later, when foreground and background are composited, the results will be correct, with the background object showing through the 'black hole' areas.

matteOpacity (mog) float 1.0

Matte Opacity is used (along with Matte Opactiy Mode) to affect how the matte (i.e. alpha channel or mask) for this material will be calculated. See Matte Opacity Mode above for full details.

filterSize (fs) float3 0.0, 0.0, 0.0

The current sample size that has to be shaded

filterSizeX (fsx) float 0.0

The x component of the current sample position

filterSizeY (fsy) float 0.0

The y component of the current sample position

filterSizeZ (fsz) float 0.0

The z component of the current sample position

matrixEyeToWorld (e2w) fltMatrix identity

The transform to go from eye to world space

matrixWorldToObject (w2o) fltMatrix identity

The transform to go from world to object space

pointWorld (pw) float3 0.0, 0.0, 0.0

The current start point of the volume interval

pointWorldX (pwx) float 0.0

The x component of the current sample position

pointWorldY (pwy) float 0.0

The y component of the current sample position

pointWorldZ (pwz) float 0.0

The z component of the current sample position

farPointWorld (fw) float3 1.0, 1.0, 1.0

The end of the volume interval in world space.

farPointWorldX (fwx) float 0.0

The x-component of the world far-position.

farPointWorldY (fwy) float 0.0

The y-component of the world far-position.

farPointWorldZ (fwz) float 0.0

The z-component of the world far-position.

pointObj (po) float3 0.0, 0.0, 0.0

The current start point of the volume interval in object space

pointObjX (pox) float 0.0

The x component of the current sample position

pointObjY (poy) float 0.0

The y component of the current sample position

pointObjZ (poz) float 0.0

The z component of the current sample position

farPointObj (fo) float3 1.0, 1.0, 1.0

The end of the volume interval in world space.

farPointObjectX (fox) float 0.0

The x-component of the object space far-position.

farPointObjectY (foy) float 0.0

The y-component of the object space far-position.

farPointObjectZ (foz) float 0.0

The z-component of the object space far-position.

rayInstance (ryi) integer 0

Unique ray identifier controlling the sampling distribution for volume light depth map shadows, fluid volume rendering, light fog, ray traced shadows, and motion blur.

lightDataArray (ltd) lightData NULL

The lighting information this node computes.

lightDirection (ld) float3

The light direction.

lightDirectionX (ldx) float 1.0

The x component of the direction.

lightDirectionY (ldy) float 1.0

The y component of the direction.

lightDirectionZ (ldz) float 1.0

The z component of the direction.

lightIntensity (li) float3

The light intensity (it's a colour).

lightIntensityR (lir) float 1.0

light intensity red value

lightIntensityG (lig) float 1.0

light intensity green value

lightIntensityB (lib) float 1.0

light intensity blue value

lightAmbient (la) bool true

The boolean that indicates if the light has an ambient component.

lightDiffuse (ldf) bool true

The boolean that indicates if the light has a diffuse component.

lightSpecular (ls) bool false

The boolean that indicates if the light has a specular component.

lightShadowFraction (lsf) float 0.0

The visibility fraction to the light. value is in [0,1]

preShadowIntensity (psi) float 0.0

The light intensity without taking shadow into account.

lightBlindData (lbd) addr 0

The light's blind data.

selfShadowing (ss) bool false

Determines whether self-shadowing should be computed or not

quality (qua) float 1.0

Quality determines the quality (number of samples per ray) used in the rendering

renderInterpolator (rin) enum 0

Which interpolation algorithm to use when retrieving values from fractional points within a fluid grid when shading a ray. Sharply contrasting densitys may show grid artifacts( like a mesh with no normal smoothing ) with linear interpolation. Smooth interpolation renders slower, but gets rid of these problems.

color (cl) compound n/a

Color defines a range of color values used to render the volume. The particular color selected from this range is determined by the Color Input parameter. The color represents how much incoming light is absorbed or scattered. If it is black all light is absorbed, while white materials scatter all incoming light.

color_Position (clp) float 0.0

Position of ramp value on normalized 0-1 scale

color_Color (clc) float3

Ramp color at the sibling position

color_ColorR (clcr) float 0.0

Ramp red channel value at the sibling position

color_ColorG (clcg) float 0.0

Ramp green channel value at the sibling position

color_ColorB (clcb) float 0.0

Ramp blue channel value at the sibling position

color_Interp (cli) enum 0

Ramp Interpolation controls the way the intermediate values are calculated. The values are:

None

Linear: The values are interpolated linearly in RGB color space.

Smooth: The values are interpolated along a bell curve, so that each color on the ramp dominates the region around it, then blends quickly to the next color.

Spline: The values are interpolated with a spline curve, taking neighboring indices into account for greater smoothness.

colorInput (coi) enum 0

Defines a the attribute used to index the color value. Constant sets the input to 1.0 or the end of the ramp. Color overrides the color range using the value defined by the grid and the color scale. This is useful when using color emission into the grid. The other options all sets the input to corresponding value from the grid. For example if density is used the start of the color ramp will be used for density values of 0 and the end value for densities of 1.0. The way midrange values map out is determined by the Color Input Bias

colorInputBias (cib) float 0.0

Color Input Bias adjusts the sensitivity of the selected color input used. Input values of 0 and 1 will always map to the start and end of the ramp value, although the bias determines where in the ramp a value of 0.5 will index. For example if one used density as an input, and the material becomes relatively opaque at a density of 0.001, then the density bias can be used to shift most of the ramp into this density range. This is easier Instead of cramming several values at the beginning of the ramp one can use the full range. If the input bias is 0.0 then a value of 0.5 will map to the exact middle of the color ramp.

opacity (opa) compound n/a

Opacity defines a range of opacity values used to render the volume. The particular opacity value selected from this range is determined by the Opacity Input parameter. The opacity represents how much the material will block light. If the opacity is zero then the material is totally transparent.

opacity_Position (opap) float 0.0

Position of ramp value on normalized 0-1 scale

opacity_FloatValue (opafv) float 0.0

Ramp value at the sibling position

opacity_Interp (opai) enum 0

Ramp Interpolation controls the way the intermediate values are calculated. The values are:

None

Linear: The values are interpolated linearly in RGB color space.

Smooth: The values are interpolated along a bell curve, so that each color on the ramp dominates the region around it, then blends quickly to the next color.

Spline: The values are interpolated with a spline curve, taking neighboring indices into account for greater smoothness.

opacityInput (opi) enum 5

Defines a the attribute used to index the opacity value. Constant sets the input to 1.0 or the end of the curve. The other options all sets the input to corresponding value from the grid. For example if density is used the start of the curve will be used for density values of 0 and the end value for densities of 1.0. The way midrange values map out is determined by the Opacity Input Bias

opacityInputBias (oib) float 0.0

Opacity Input Bias adjusts the sensitivity of the selected opacity input used. Input values of 0 and 1 will always map to the start and end of the opacity curve, although the bias determines where in the curve a value of 0.5 will index. For example if one used density as an input, and one wishes the material to become opaque at a density of 0.001, then the density bias can be used to shift most of the curve into this density range. Instead of cramming several values at the beginning of the ramp one can use the full range. If the input bias is 0.0 then a value of 0.5 will map to the exact middle of the opacity curve.

transparency (t) float3

Transparency combined with Opacity determine how much light can penetrate the defined density. Transparency scales the single channel opacity value allowing for a colored opacity. Note that a transparency of 0.5 0.5 0.5 may render slightly faster than other values.

transparencyR (tr) float 0.25

transparency red value

transparencyG (tg) float 0.25

transparency green value

transparencyB (tb) float 0.25

transparency blue value

shadowOpacity (shp) float 0.5

ShadowOpacity used to brighten-up or darken shadows cast from the volume. At 0.5 the shadows are attenuated in exact proportion to the transparency of the volume. At 0.0 no shadowing occurs and at 1.0 shadows are completely black and the volume is totally in shadow. To account for multiple-scattering values less than 0.5 can help make thick clouds appear more translucent. Values above 0.5 make the clouds unnaturally opaque to lights, but may be useful to accentuate self shadowing.

incandescence (i) compound n/a

Incandescence controls the amount of light emitted from regions of density due to self illumination. The The particular color selected from this range is determined by the Incandescence Input parameter. Incandescent emission is not affected by illumination or shadowing.

incandescence_Position (ip) float 0.0

Position of ramp value on normalized 0-1 scale

incandescence_Color (ic) float3

Ramp color at the sibling position

incandescence_ColorR (icr) float 0.0

Ramp red channel value at the sibling position

incandescence_ColorG (icg) float 0.0

Ramp green channel value at the sibling position

incandescence_ColorB (icb) float 0.0

Ramp blue channel value at the sibling position

incandescence_Interp (ii) enum 0

Ramp Interpolation controls the way the intermediate values are calculated. The values are:

None

Linear: The values are interpolated linearly in RGB color space.

Smooth: The values are interpolated along a bell curve, so that each color on the ramp dominates the region around it, then blends quickly to the next color.

Spline: The values are interpolated with a spline curve, taking neighboring indices into account for greater smoothness.

incandescenceInput (ili) enum 6

Defines a the attribute used to index the incandescence value. Constant sets the input to 1.0 or the end of the ramp. Color overrides the incandescence range using the value defined by the grid and the color scale. This is useful when using color emission into the grid. The other options all sets the input to corresponding value from the grid. For example if density is used the start of the color ramp will be used for density values of 0 and the end value for densities of 1.0. The way midrange values map out is determined by the Incandescence Input Bias

incandescenceInputBias (iib) float 0.0

Incandescence Input Bias adjusts the sensitivity of the selected incandescence input used. Input values of 0 and 1 will always map to the start and end of the ramp value, although the bias determines where in the ramp a value of 0.5 will index. For example if one used density as an input, and the material becomes relatively opaque at a density of 0.001, then the density bias can be used to shift most of the ramp into this density range. This is easier Instead of cramming several values at the beginning of the ramp one can use the full range. If the input bias is 0.0 then a value of 0.5 will map to the exact middle of the incandescence ramp.

glowIntensity (gi) float 0.0

Glow Intensity is 0 by default, meaning that no glow is added to the material. As this is turned up, the material seems to 'glow' with a faint halo of light around it.

Note that this is different from the Incandescence attribute in a few important ways. First, glow is added as a post-process at the end of rendering. (Incandescence just makes the surface appear brighter.) Second, glow adds a halo, which incandescence does not.

specularColor (spc) float3

Specular controls the amount of light emitted from regions of density due to self illumination.

specularColorR (spr) float 0.0

specular red value

specularColorG (spg) float 0.0

specular green value

specularColorB (spb) float 0.0

specular blue value

cosinePower (csp) float 20.0

Cosine Power is used to control the "tightness" of the specular highlights (also called 'hot spots') on the surface. The minimum value is 2. The higher the value, the more tighly focussed (smaller) is the highlight.

environment (env) compound n/a

Environment defines a simple sky to ground environmental reflection using a ramp. The left of the ramp is the top of the sky and the right is the bottom.

environment_Position (envp) float 0.0

Position of ramp value on normalized 0-1 scale

environment_Color (envc) float3

Ramp color at the sibling position

environment_ColorR (envcr) float 0.0

Ramp red channel value at the sibling position

environment_ColorG (envcg) float 0.0

Ramp green channel value at the sibling position

environment_ColorB (envcb) float 0.0

Ramp blue channel value at the sibling position

environment_Interp (envi) enum 0

Ramp Interpolation controls the way the intermediate values are calculated. The values are:

None

Linear: The values are interpolated linearly in RGB color space.

Smooth: The values are interpolated along a bell curve, so that each color on the ramp dominates the region around it, then blends quickly to the next color.

Spline: The values are interpolated with a spline curve, taking neighboring indices into account for greater smoothness.

dropoffShape (dos) enum 2

Defines a shape to use to define an outer boundary for creating a soft edged volume. If one is rendering a box volume then Cube should match the edges of the volume. Likewise for Sphere and Cone volumes.

edgeDropoff (edr) float .05

Defines the rate at which the density drops off towards the edge defined by the Dropoff Shape.

contrastTolerance (ctl) float 0.01

The maximum contrast in effective transparency of a volume span allowed by the adaptive subdivision sample method. When the contrast between two spans is greater than this value we subdivide the span. The contrast is defined as the effective difference in accumulated transparency from the viewpoint. If this value is high, then the sampling will look like uniform sampling. If the contrastTolerance is low then the quality will improve and the render time will increase, although we will not require as many samples as uniform sampling for a given render quality. The quality setting should be just high enough that one does not miss dense regions altogether( this creates artifacts like dotty fringes around clouds ).

heightField (hfld) bool false

If this is on then we draw a 2D surface as a heightfield rather than a flat plane. The opacity value is mapped to the height.

surfaceRender (srr) bool false

If this is on then we draw a surface instead of a soft volume. Shaded Display must be set to AsRender in order to see the surface in the interactive draw, or the outMesh must have a connection. The surface location is determined by the current opacity combined with the surface threshold.

surfaceThreshold (srt) float 0.01

Threshold value used to generate implicit surface

surfaceTolerance (stl) float 0.1

This determines how close points sampled for a surface lie to the the exact surfaceThreshold density. The quality setting should be made just high enough that we do not miss regions containing the surface. The render then further refines the surface using this tolerance. If this is high then the surface will look dotty and of poor quality. Very low values will result in longer render times and better quality. The tolerance value is defined relative to the quality setting. The quality determines the uniform step size, so that the actual distance this defines is equal to the step size * surfaceTolerance. This attribute is only for volume rendering of the fluid surface, and does not affect the fluid output mesh.

softSurface (ssf) bool false

This takes internal density variations into account when doing surface renders. If soft surface is on then the inside of the density will not be a constant substance like glass but rather a continuously varying density such as a cloud.

meshResolution (mre) float 2.0

This determines how finely the fluid is sampled when generating a mesh( convert fluid to poly). At a value of of 1.0 it only samples the fluid at voxels centers, which is the most efficient to compute. For higher values it increases the the grid resolution used for generating the output mesh, which will be slower but will more accurately resolve the fluid density, especially if there is an opacity texture. Also the output mesh will have more triangles when this attribute is higher. As well larger values will consume more memory. Values lower than 1.0 may be used, but it would in most cases be more efficent to instead lower the base fluid resolution.

useGradientNormals (ugn) bool false

If on, then we create user normals based on the direction of the opacity gradient in the fluid. This results in a smoother looking output mesh, especially in regions with thin triangles. This only affects the output mesh of the fluid( convert fluid to poly ).

refractiveIndex (rei) float 1.8

Index of refraction. This property affects how reflectivity changes with viewing angle. It makes use of Fresnel's law. Materials with a low refractive index are generally only reflective at glancing angles. This is useful for a wet look or for water, because water has a lower refractive index than most solids. At a refractive index of 1.0 the material is considered to be the same as the medium, and theoretically there should be no specularity in this case( as with a cloud ). However we turn on full specularity in this case (ie. no view angle modulation), for convenience.

sampleMethod (smpm) enum 3

Controls how fluid is sampled during rendering Jitter avoids banding artifacts, but adds noise to the final image unless the quality is set high.

realLights (rl) bool true

Determines whether to use normal lights or a single built in directional light. The simple built in lighting is faster, especially for self shadowing, and it does not cast shadows or light onto other objects. Nor does it receive shadows from other objects.

directionalLight (dl) float3

DirectionalLight is the direction of the internal directional light used when RealLights is off.

directionalLightX (dlx) float 0.5

directionalLight X value

directionalLightY (dly) float 0.8

directionalLight Y value

directionalLightZ (dlz) float 0.5

directionalLight Z value

textureType (tty) enum 0

Determines how to texture the volume's density. Perlin Noise is the standard 3D noise used in the solidFractal texture. Billow has a pluffy, cloudlike effect. Wispy is a perlin noise that uses a second noise as a smear map. This makes the noise stretch out in places, looking wispy. When the time attribute is animated the smear noise is moved causing an undulating effect. Volume Wave is a sum of 3D waves in space. SpaceTime is a 4 dimensional version of the perlin noise, where time is the 4th dimension.

colorTexture (ctx) bool false

Color Texture toggles the application of the current texture( determined by the texture type ) to the color input value.

colorTexGain (ctxg) float 1.0

Color Tex Gain determines how much the texture affects the input value to the color. If the color range is red to blue, then texturing will cause red to blue variations. At a value of zero there will be no color texturing.

incandTexture (itx) bool false

Incand Texture toggles the application of the current texture( determined by the texture type ) to the incandescence input value.

incandTexGain (itxg) float 1.0

Incand Tex Gain determines how much the texture affects the input value to the incandescence. If the incandescence range is red to blue, then texturing will cause red to blue variations. At a value of zero there will be no incandescence texturing.

opacityTexture (otx) bool false

Opacity Texture toggles the application of the current texture( determined by the texture type ) to the opacity input value.

opacityTexGain (otxg) float 1.0

Opacity Tex Gain determines how much the texture affects the input value to the opacity. If the opacity curve goes from 0.0 to 0.6, then texturing will cause variations between these values. At a value of zero there will be no opacity texturing.

invertTexture (ivt) bool false

InvertTexture This reverses the range of the texture so that dense regions become thin and thin become dense. If it is on, then the texture = 1 - texture.

amplitude (a) float 1.0

Amplitude is a scaling factor applied to all the values in the texture, centered around the texture's average value. This means that when you increase Amplitude, the light areas get lighter and the dark areas get darker.

If the Volume Noise is being used as a bump map, then increasing Amplitude will make the bumps higher and the valleys deeper.

If you set Amplitude to a value greater than 1.0, then those parts of the texture that scale out of range will be clipped. On a bump map, this will show up as plateau regions.

ratio (ra) float 0.707

Ratio controls the frequency of the fractal noise. Increase this value to increase the fineness of detail in the fractal,

threshold (th) float 0.0

Threshold is a number that is added to the whole fractal, making it uniformly brighter. If some parts of the fractal are pushed up out of range (greater than 1.0), then they will be clipped to 1.0. If the Volume Noise is being used as a bump map, this will show up as plateau regions.

textureScale (txsc) float3 1.0, 1.0, 1.0

Texture Scale determines the scale of the noise in the local x,y and z directions. It has a similar to scaling the transform node for the texture.

If you increase Scale in any particular direction, the fractal detail will seem to smear out in that direction.

textureScaleX (tscx) float 0.0

Scale X value

textureScaleY (tscy) float 0.0

Scale Y value

textureScaleZ (tscz) float 0.0

Scale Z value

textureOrigin (tor) float3 0.0, 0.0, 0.0

Texture Origin is the zero point for the noise. changing this value translates the noise through space.

textureOriginX (torx) float 0.0

Origin X value

textureOriginY (tory) float 0.0

Origin Y value

textureOriginZ (torz) float 0.0

Origin Z value

depthMax (dm) short 2

DepthMax controls how much calculation is done by the Volume Noise texture. Fractal textures are created by an iterative mathematical process; as the process goes over more levels, it produces a more detailed fractal, but takes longer to do so. Normally, the texture will choose a level it thinks is appropriate for the volume being rendered. You can use Depth Max to control the maximum amount of calculation that the texure will do.

frequency (fq) float 1.0

Frequency This determines the fundamental frequency for the noise. As this value increases the noise becomes more detailed. It has the inverse effect of the scale parameter.

frequencyRatio (fr) float 2.0

Frequency Ratio This determines the relative spacial scale of the noise frequencies. If this ratio is not a whole integer then the fractal will not repeat at the integer uv boundaries. A cylinder with default placement would then display a seam.

inflection (in) bool false

Inflection This applies a kink in the noise function This is useful for creating puffy or bumpy effects. It is equivalent to abs(noise) * 2 - 1.

textureTime (tti) float 0.0

Texture Time is used to animate the Noise texture. You can keyframe the Time attribute to control the rate and amount of change of the texture. Typing the expression "= time" into the edit cell will cause the texture to billow when rendered in an animation. Typing "= time * 2" will make it billow twice as fast.

billowDensity (bd) float 1.0

Billow Density controls how many cells there are imbedded in the medium used by the Billow noise type. At 1.0, the medium is completely packed with cells. Reduce this value to make the cells more sparse.

If the texture is being used as a bump map, then low values for Density will make it look like a smooth surface with occasional bumps on it.

spottyness (sp) float 0.1

Spottyness controls the randomization of the density of the individual cells used by the Billow noise type. When Spottyness is close to 0, all the cells will be the same density. As you increase Spottyness, some cells will be denser or thinner than others, in a random fashion.

sizeRand (sr) float 0.0

Size Rand controls the randomization of the size of the individual blobs used by the Billow noise type. When it is close to 0, all the cells will be the same size. As you increase Size Rand, some cells will be smaller than others, in a random fashion.

randomness (rnd) float 1.0

Randomness controls how the cells for the Billow noise type are arranged relative to one another. Set randomness to 1.0 to get a realistic random distribution of cells, as would be found in nature. If you set Randomness to 0, all the spots are laid out in a completely regular pattern. This can provide interesting effects when used as a bump map; you can make things like insect eyes, or machine-tooled raspy surfaces.

falloff (falo) enum 2

This controls the way intensity falls off for individual blobs for the Billow noise type. Linear is a uniform falloff from the center to a value of zero at the edges of the blobs.Smooth is more natural looking, using a gaussian falloff. Fast focuses the intensity more towards the center of the blobs. Bubble uses a reverse falloff, fading to zero at the blob center.

numWaves (nw) short 5

NumWaves determines how many waves to generate for the VolumeWave noise type. The larger this number the more random looking and slower the texture.

implode (imp) float 0.0

Implode warps the noise function in a concentric fashion about a point defined by the Implode Center. At a value of zero there is no effect, while at a value of 1.0 it is a spherical projection of the noise function, creating a starburst effect. Negative values can be used to skew the noise outward instead of inward.

implodeCenter (imc) float3 0.0, 0.0, 0.0

Implode Center defines the center point about which the implode effect is defined.

implodeCenterX (imx) float 0.0

Implode Center X x position for implode effect

implodeCenterY (imy) float 0.0

Implode Center Y y position for implode effect

implodeCenterZ (imz) float 0.0

Implode Center Z z position for implode effect

outColor (ocl) float3 0.0, 0.0, 0.0

The fog output color.

outColorR (ocr) float 0.0

The red component of the fog output color.

outColorG (ocg) float 0.0

The green component of the fog output color.

outColorB (ocb) float 0.0

The blue component of the fog output color.

outGlowColor (ogc) float3

Out Glow Color is the final output glow color from this node (if this node is glowing)

outGlowColorR (ogr) float 0.0

out glow color red value

outGlowColorG (ogg) float 0.0

out glow color green value

outGlowColorB (ogb) float 0.0

out glow color blue value

outTransparency (ot) float3 0.0, 0.0, 0.0

The fog output transparency.

outTransparencyR (otr) float 0.0

The red component of the fog output transparency.

outTransparencyG (otg) float 0.0

The green component of the fog output transparency.

outTransparencyB (otb) float 0.0

The blue component of the fog output transparency.

outMatteOpacity (omo) float3

output Matte Opacity

outMatteOpacityR (omor) float 0.0

output Matte Opacity red value

outMatteOpacityG (omog) float 0.0

output Matte Opacity green value

outMatteOpacityB (omob) float 0.0

output Matte Opacity blue value

diskCache (dc) Message n/a

Connection for playback cache node

diskCacheIC (dcic) Message n/a

Connection for initial conditions node

cacheDensity (cdns) bool true

During cache creation, if this object has a density grid write the grid to the disk cache

loadDensity (ldns) bool true

When reading from a cache, if the cache contains a density grid read the density from the cache

cacheVelocity (cvel) bool true

During cache creation, if this object has a velocity grid write the grid to the disk cache

loadVelocity (lvel) bool true

When reading from a cache, if the cache contains a velocity grid read the velocity from the cache

cacheTemperature (ctmp) bool true

During cache creation, if this object has a Temperature grid write the grid to the disk cache

loadTemperature (ltmp) bool true

When reading from a cache, if the cache contains a Temperature grid read the temperature from the cache

cacheColor (ccol) bool true

During cache creation, if this object has a Color grid write the grid to the disk cache

loadColor (lcol) bool true

When reading from a cache, if the cache contains a Color grid read the color from the cache

cacheReaction (crea) bool true

During cache creation, if this object has a Reaction grid write the grid to the disk cache

loadReaction (lrea) bool true

When reading from a cache, if the cache contains a Fuel grid read the fuel from the cache

cacheTextureCoordinates (catc) bool true

During cache creation, if this object has a Texture Coordinate grid write the grid to the disk cache

loadTextureCoordinates (lotc) bool true

When reading from a cache, if the cache contains a Texture Coordinate grid read the grid from the cache

cacheFalloff (cfal) bool true

During cache creation, if this object has a falloff grid write the grid to the disk cache

loadFalloff (lfal) bool true

When reading from a cache, if the cache contains a falloff grid read the falloff from the cache

playFromCache (pfch) bool false

When enabled, it reads back position from the vector array input

inDensity (idns) floatArray NULL

Input for cached density data

inVelocity (ivel) floatArray NULL

Input for cached velocity data

inTemperature (itmp) floatArray NULL

Input for cached temperature data

inReaction (irea) floatArray NULL

Input for cached fuel data

inColor (icol) floatArray NULL

Input for cached color data

inTextureCoordinates (itxc) floatArray NULL

Input for cached texture coordinate data

inFalloff (ifal) floatArray NULL

Input for cached falloff data

collisionData (cda) compound n/a

Parent attribute for all collision input data.

collisionGeometry (cge) sweptGeometry NULL

The swept geometry for the connected shape.

collisionResilience (crs) double 0.0

How much of the particle's velocity perpendicular to the surface is reflected

collisionFriction (cfr) double 0.0

The amount of a particle's velocity parallel to a surface that is lost in the collision

collide (cld) bool true

A toggle to turn enable collision of fluid flow with attached geometry.

objectType (obt) char TrenderableObjectType::kVolume

The type of object being shaded.

surfaceShaderDepth (susd) float 1.0

Surface Shader Depth controls how far in worldspace beyond a surface that we compute the fluid when used as a shader for surfaces(nurbs and polysets).

particleWeight (we) float 0.0

the weight in the intensity calculation

coordinateSpeed (csd) float 0.2

This parameter scales how fast coordinates are moved by the velocity when the coordinate method is GRID. At a value of 1.0 the coordinates are pushed through the volume at the same speed as the other contents, such as density. However this tends to result in the texture becoming smeared out after a few steps. Lower values tend to preserve the character of the texture and can look more natural. Animating this value can be useful in some situations, such as when one does not wish the texture to deform before a certain point( keyframe it to zero until the desired start point ).

mentalRayControls (mrc) compound n/a

This is a root of following mental ray attributes. The following override flags applies to fluidShape node only, and does not have any effect on fluid texture nodes (both 2D and 3D).

miOverrideCaustics (oca) bool false

Enable caustic settings override for this shape. If this parameter is set, the following caustics settings will override the renddr global settings for this shape node.

miCausticAccuracy (caa) short 64

Caustic accuracy for this shape if miOverrideCaustics is on.

miCausticRadius (car) float 0

Caustic radius for this shape if miOverrideCaustics is on.

miOverrideGlobalIllumination (ogi) bool false

Enable global illumination settings override for this shape. If this parameter is set, the following global illumination settings will override the renddr global settings for this shape node.

miGlobillumAccuracy (gia) short 64

Global illumination accuracy for this shape if miOverrideGlobalIllumination is on.

miGlobillumRadius (gir) float 0

Global illumination radius for this shape if miOverrideGlobalIllumination is on.

miOverrideFinalGather (ofg) bool false

Enable final gather settings override for this shape. If this parameter is set, the following final gather settings will override the renddr global settings for this shape node.

miFinalGatherRays (fry) integer 1000

Final gather rays for this shape if miOverrideFinalGather is on.

miFinalGatherMinRadius (fmn) float 0

Final gather min radius for this shape if miOverrideFinalGather is on.

miFinalGatherMaxRadius (fmx) float 0

Final gather max radius for this shape if miOverrideFinalGather is on.

miFinalGatherFilter (ffi) short 1

Final gather filter for this shape if miOverrideFinalGather is on.

miFinalGatherView (fgv) bool false

Final gather view flag for this shape if miOverrideFinalGather is on.

miOverrideSamples (oos) bool false

Override global object sample settings. In addition to global sample settings mental ray supports per-object sample settings. The global mental ray default for all objects in the scene can be set by minObjectSamples and maxObjectSamples on the mental ray options node (miDefaultOptions). Similar attributes on individual shape nodes miMinSamples and miMaxSamples are overriding the global default.

miMinSamples (mins) short 1

Specifies min sample settings for the shape. For all pixels that touch this object, at least pow(2, miMinSamples) samples are taken. miMinSamples lower than the global min samples is ignored.

miMaxSamples (maxs) short 2

Specifies max sample settings for the shape. For all pixels that touch this object, at most pow(2, miMaxSamples) samples are taken. miMaxSamples higher than the global max samples is ignored.