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intuitiv'3d API documentation Copyright ©1993 by Cub'x SystÜmes. All Rights Reserved.
This file describes types and constants you will need when using or making a subclass of CX3DShader
CXShaderType
This type describes the type of a shader. Values can be:
CXSTSurface A surface shader.
CXSTLight A light shader.
CXSTDisplacement A displacement shader.
CXSTVolume A volume shader.
CXSTTransformation A transformation shader.
CXSTImager An imager shader.
CXSTUndefined A shader without any type (not initialized)
CXRenderType
This type describes Renderman functions that can be used to render a shader. Values could be:
CXRTSurface RiSurface()
CXRTDisplacement RiDisplacement()
CXRTAreaLight RiAreaLightSource()
CXRTInterior RiInterior()
CXRTExterior RiExterior()
CXRTAtmosphere RiAtmosphere()
CXRTUndefined Don't know how to render a shader
CXArgType
This type describes the argument types that can be used with the Rendeman Shading Language.
CXATPoint A 3d point.
CXATColor A color
CXATScalar A float value
CXATMap A 2d picture file. (.tx)
CXATUndefined An obscure argument type.
WrapType
The wrapType defines how a tiff map is translated into .tx. Values could be:
Black RI_BLACK.
Periodic RI_PERIODIC
Clamp RI_CLAMP
Texture
typedef struct
{
char mapName[255];
char realMapName[255];
unsigned int isTiff;
WrapType wrapS, wrapT;
char *filterFunc;
RtFloat widthX;
RtFloat widthY;
} Texture;
mapName This field contains the user input for mapping. (.tx or.tiff)
realMapName This field contains the final map used at rendering (.tx)
isTiff 0 if mapName is a .tx 1 otherwise.
wrapS,wrapT Wrap type on s and on t
*filterFunc The filter function used for the translation.
widthX width of the texture.
widthY height of the texture.
CXArg
This type describes a shader argument:
typedef struct
{
char argName[255];
CXArgType type;
RtToken argNameToken;
union
{
RtPoint point;
NXColor color;
float scalar;
Texture txt;
} data;
union
{
RtPoint bpoint;
RtColor bcolor;
RtFloat bscalar;
char *bstring;
} arg;
} CXArg;
argName name of the argument.
type type of the argument.
argNameToken token used at rendering for this parameter.
argNameToken token used at rendering for this parameter.
data This union contains the data given to the shader at rendering. Names speak by themselves.
arg This union is a buffer used internally when rendering.
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.