It is better to use such combinations of export checkboxes: where any other layer doesn't contain color data.īut positions of vertices on exported OBJ file depend on your choice. If you erase the paint things still bake just fine, however the transparent areas created will be baked as alpha/trans.Īlso if you hide Layer 0 it bakes fine, and entirely with alpha/trans. It contains mesh data and a “base coat” of paint for baking. Layer0: Avoid using it for any purpose but transparency. BTW I really like direct render from Coat via Prman! Very nice. I need it to paint sculpted displacement with undercut export capability, and tangent normal maps for PrMan 24 out of Houdini. I am sure they are great, but that is not what I need sculpting app for. There are some ops I will never use in Coat, specifically retopo and UV. The sculpting tools applies tool to all layers, frozen or not, then some tools apply to hidden layers others do not. Then even with layers, some tools destroy layers. If sculpting gets too heavy then puting hirez version destroys layers and freezes all prior work into layer. Then there is all these messages, and backround operations that destroy, or seem to destroy, workflow. Sorry but the YT vdeos don't do it for me.

This is kind of confusing, and having sculpt tree separate from paint tree and different objects for each, the process gets away from me, and I loose control and understanding of what is happening. So if I sample SDF clay from mesh surface with existing UV, imported into Coat, then what happens to those UVs when SDF clay is sampled from that mesh.

The sculpt tools for voxel SDF clay are different then sculpt tools for imported mesh surfaces. Something is getting by me, and I don't understand what. Once I Res+ a mesh, it won't go down a level. In Mudbox I can subdivide then go and down sub-d divisions. Into both Mudbox and Sub3D Painter a mesh with UV is brought in, and off I go. I am most used to using Mudbox to sculpt and paint displacement + normals, and then paint color, roughness, etc. I like to if possible, work on a single object, on which I paint, sculpt, and export. What I don't get is paint object, sculpt object, uv object, voxel clay object, polymesh object, microvertex object, etc. I actually need to bake displacement into any common image file format, but 16 bit. But thats getting a bit too technical for this post. So that sculpted sub-divided mesh does not need to be rigged. In Houdini, I then transfer P, N, UV, V attributes of lower rez base mesh onto subdivided mesh.

Or a higher res subdivided sculpted mesh is exported out and brought into Houdini. As an option the original resculpted mesh is exported out with its UV's and point numbers intact to be used as blend shape target. So a polymesh with UV is exported out of Houdini as OBJ or FBX, then imported into 3DCoat, sculpted, then displacement and normal maps are extracted and used back in Houdini with PrmanRIS. What I need it for is to be an in-line sculpting and displacement map app for Houdini work flow. But I need to understand this app, and its not quite clicking. I really appreciate that 3DCOAT can render to Prman directly and I feel for the Ukrainian guys, and want to support them. The last somewhat irritating issue is that I am unable to use Wacom eraser as eraser to erase sculpt operations on a selected layer. Worse still a sculpt op would be applied to all the layers. Other random operations, the sculp would be applied only to base layer zero. But for unknown reasons a sculpt operation would be applied to base layer zero in addition to selected layer. In Sculpt I use layers, and I am always carefull to have the desired layer layer selected. But here is something that keeps biting me.

3dcoat move from retopo to sculpt