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 SHAPEARNOLD SHAPE
Pointpoints (mode “disk”)
Discdisk
Rectanglepolymesh, one quad per point
Boxpolymesh, 6 quad per point
Spherepoints (mode “sphere”)
Cylindercylinder
Conecone
Instance Shapeginstance

 

The Segment, Capsule, and Blob shapes are not supported. SItoA skips them and they are not translated into the Arnold scene source.

 

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