atap3d

1) Anyone knows how to use renderman co-shaders in houdini 10? Where can I read about this? I have not found any information in houdini help.
2) I found shader node “Merge Co-Shader”. What is it? Why it is needed? How to use this node? I have not found any information about this node in houdini help.

Hi
I am writing a Mantra Vray Procedural.
while(condition)
{
modify(xform);
openGeometryObject();
setTransform(xform, 0.0);
addGeometry(gdp, 0.0);
closeObject();
// gdp does not change
}

The problem, transformation happening in screen space. At least I think so. It is absolutely not in world space. Even I tried using xform.translate(i,0,0); and incremented “i” each time,
just to check, and it is getting translated in screen space. How to make the transformation in world space? Please, help.

Hi
I am writing a mantra vray procedural. How can I get camera projector matrix inside my c++ DSO?