Tweet
Add support for Object-space normal map
Currently VRayNormalMap only support Tangent-space normal map (as wrote in the doc).
It'll be great if V-Ray can add support for Object-space normal map because it have quite some advantage for some circumstance like avoid visible UV seams; it also handle culvatures better, avoid smoothing problems from the low-poly vertex normals.
CryEngine document has described this in details: CryEngine docs Tangent vs Object
The default Normal Bump of 3ds Max (and Render to texture) already support bake and render Object-space normal map (they called as "Local XYZ"): Link to NormalBump docs
(I've tried to assign the NormalBump with method Local XYZ into bump map slot of VrayMtl, but the result rendered has wrong shading so I guess V-Ray does not support that trick
)
It'll be great if V-Ray can add support for Object-space normal map because it have quite some advantage for some circumstance like avoid visible UV seams; it also handle culvatures better, avoid smoothing problems from the low-poly vertex normals.
CryEngine document has described this in details: CryEngine docs Tangent vs Object
The default Normal Bump of 3ds Max (and Render to texture) already support bake and render Object-space normal map (they called as "Local XYZ"): Link to NormalBump docs
(I've tried to assign the NormalBump with method Local XYZ into bump map slot of VrayMtl, but the result rendered has wrong shading so I guess V-Ray does not support that trick
)
Comment