Roughness not taken into account to render objects with panda3d-simplepbr

[serega-kkz]

Perhaps the problem is that there is no roughness map in the material. By default, four render stages are used: M_modulate, M_normal, M_selector, M_emission.

PBR and the name of texture maps

There are predefined texture input names intended for PBR texture maps: https://docs.panda3d.org/1.10/python/programming/shaders/list-of-glsl-inputs There are a few undocumented, this is the full list: uniform sampler2D p3d_TextureFF[]; uniform sampler2D p3d_TextureModulate[]; // default color: (1, 1, 1, 1) uniform sampler2D p3d_TextureAdd[]; // default color: (0, 0, 0, 1) uniform sampler2D p3d_TextureNormal[]; // default color: (0.5, 0.5, 1, 0) uniform sampler2D p3d_TextureHeight[]; …

If there is no texture, then the roughness will be 0. To fix this, you need a roughness map.

https://discourse.panda3d.org/uploads/default/original/2X/0/0c48ec4115c2a5a7cc20f32d3c379f8f43ea9f92.png