@dlopez-gutierrez Perhaps related to what @SamIWas posted about, I have also seen something similar where the opacities / alpha channels of RW image textures invert between Shaded and Renderworks.   Shaded looks like it's inverting the alpha channel, where you have no surface texture. It also shows up in the shadows being reversed.    Attached is a very simple 2023 test file which uses standard VW-provided 'perforated metal' RW textures on an extruded circle.