Houdini

Rendering huge Houdini meshes in V-Ray.

I'm working on a production right now that involves sending absolutely enormous animated meshes (6.5 million polygons on average with a changing point count every frame) out of Houdini and into Maya for rendering. Normally it would be best to just render everything directly out of Houdini, but sometimes you don't have as many Houdini licenses (or artists) as you'd like so you have to make do with what you have. If the mesh were smaller, or at least not animated, I'd consider using the Alembic format since V-Ray can render it directly as a VRayProxy, but for a mesh this dense animating over a long sequence, the file sizes would be impossibly huge since Alembics can't be output as sequences. Trying to load an 0.5 TB Alembic over a small file server between 20 machines trying to render the sequence and you can see why Alembic might not be ideal for this kind of situation. Hit the jump below to see the solution. (more…)

By toadstorm, ago
Maya

Ptex weirdness in VRay.

I’ve been messing around with using Ptex in VRay for Maya and ran into a particularly weird little problem involving a normal map exported from Mudbox. It’s probably easier to show it than to tell about it (Fig. 1): That wax wrapper looks terrible… not at all like the original Read more…

By toadstorm, ago
Maya

applying displacement in vray

I was just talking to a colleague about his problems using displacement maps with VRay, and then remembered my confusion when I first tried to work with them. So here’s a post about it! Normally in Maya/mental ray, when you want to apply a displacement map you just create a Read more…

By toadstorm, ago