Floyd Gillis

Is there a way to view a scene from the "Sun Position" set in a Physical Sky node using animated time in the Location/Date/Time settings?

I understand the "Sun" is just a Distant light (at 0, 0, 0) with altitude and azimuth values to determine the rotations, and I'll have to use another camera or light to do the "viewing".

Haven't been able to come up with a working solution.

BabaJ
So..as far as doing it by vex..this seems to be the simplest.

The following if put in a point wrangle will have normals point at camera.

matrix Op_Matrix;

Op_Matrix = optransform('op:../../cam1/'); 
@N        = (Op_Matrix * (@P - @P)) - @P;

So, here we are, five years later, and I was looking for a way to project points onto a plane so their locations matched when viewed from the same perspective camera.

Added normals using your code above, then used a ray sop to project the points onto the grid.

Worked like a charm. Thank you!

This is a follow-up to my previous post, "Update parameters scripting syntax", that was solved by mtucker.

I'm now using an object's Render Geometry Settings node with hscript to control render display using the following line:

opparm object_RGS `encodeparm("primvars:karma:object:rendervisibility")` ( " " )

This works great, but it means any object I want to separately control the display of needs it's own Render Geometry Settings node.

Instead, is there another (simpler) way, using hscript, to set the visibility of a primitive?

Would be convenient if there was something similar to the Scene Graph's "Toggle scene graph primitive's visibility" parameter for render display.