Hi, I'm trying to do some volumetrics in mray, but the shader is giving me all kinds of wierdness on heavy meshes. Have anyone experienced this before ?
For the sake of simplicity, I have this test scene with only one default sphere. If I crank up the sphere U/V subd to 200, it starts to show some strange black areas. At subd 300, it renders all flat. I'm guessing it's not a lookup table cell size problem...tried very small values, and the volume renders almost completely solid (when it works). here's some images to illustrate: [image: Imagem inline 1] I really need dense meshes because I want the fine control over the volume silhouette to be on the mesh itself, not through shader trees. anyone ?
<<inline: volume_shader_error.jpg>>
