LuxCoreRender Forums

I made the material completely transparent and noticed that Volume shows flat shading. Is this the right behavior? it looks weird.

Dez! wrote: Wed Jan 12, 2022 4:49 pm I made the material completely transparent and noticed that Volume shows flat shading. Is this the right behavior?

Yes, the geometry is faceted so the definition of the volume inside is faceted too.

Dez! wrote: Wed Jan 12, 2022 4:49 pm it looks weird.

Yes, but there is nothing you can do but subdividing the surface more. Normal interpolation can resolve this problem for shading (aka fake a truly curved surface) but the geometry is still defined by the flat triangles.

Indeed¸all engines render volume like this. In other words, since there's no surface, normals are taken out of equation = no smoothing.
eg
corona cycles

Thanks for the answers and experiences with other engines. Amazing. Now I will think about it beforehand, in the process of modeling