For shapes of type point, disc, rectangle, sphere, box, cylinder and cone, the points are exported using the respective native Arnold nodes.
For example, Arnold has a points node, whose mode can be either disk, sphere, quad. If the ICE shape is Points, we export a points node in disk mode, etc.
Any ICE attribute can be read in the rendertree with the standard attribute shaders.
The following is a table showing how each ICE shape is translated into Arnold.
|ICE SHAPE||ARNOLD SHAPE|
|Point||points (mode “disk”)|
|Rectangle||polymesh, one quad per point|
|Box||polymesh, 6 quad per point|
|Sphere||points (mode “sphere”)|
The Segment, Capsule, and Blob shapes are not supported. SItoA skips them and they are not translated into the Arnold scene source.