The RenderMan Interface - Paul Bourke

placed within a frame block, any nonstandard shaders that appear in that frame must
be listed.
##Textures texture1, texture2, ...
Lists any preexisting textures required in the file. When placed in the header of a RIB
file, any preexisting textures that appear anywhere in the file should be listed. When
placed within a frame block, any preexisting shaders that appear in that frame must
be listed.
##CapabilitiesNeeded feature1, feature2, ...
Indicates any RenderMan Interface optional capabilites required in the file (when
located in the header) or required in the frame (when located at the top of a frame
block). The optional capabilities are:
Area Light Sources Motion Blur Special Camera Projections
Bump Mapping Programmable Shading Spectral Colors
Deformations Radiosity Texture Mapping
Displacements Ray Tracing Trim Curves
Environment Mapping Shadow Depth Mapping Volume Shading
Level Of Detail
Solid Modeling
See Part I, Section 1, Introduction, for a description of these capabilities.
Frame information
Frame-local information must be located directly after a FrameBegin RIB request and be
contiguous. These comments should provide frame-local information that contains administrative
and resource hints.
##CameraOrientation eyex eyey eyez atx aty atz [ upx upy upz ]
Indicates the location and orientation of the camera for the current frame in World
Space coordinates. The up vector is optional and the default value is [0 1 0].
##Shaders shader1, shader2,...
Lists the nonstandard shaders required in the current frame.
##Textures texture1, texture2,...
Lists the nonstandard textures required in the current frame.
##CapabilitiesNeeded feature1, feature2,...
Lists the special capabilities required in the current frame from among those listed
under Header Information.
Body Information
Body information may be located anywhere in the RIB file.
189