I am seeing artifacts that appear to be related to the Acceleration structure grid.
Here is a pure Opengl render of the mesh:
Here is the render with OptiX:
I’ve checked the winding order of polygons, and confirmed my mesh renders ok with pure opengl.
Some triangles appear to be “cut out”. However, upon closer look, some edges of the artifacts are straight and track with the acceleration grid as the camera moves. Therefore I suspect its not a triangle issue.
Here is what happens when I do “NoAccel”:
My Optix graph is as follows:
top_object -> Group -> Transform -> Geometry Group -> Geom Instance -> Geometry
I am using a OptiX 6.5.0 with driver 452.06