When texure shading is enabled, the transparency accum shaders were not set/updated. This resulted into a crash when transparent objects were rendered when shading mode was set to texture. This patch will add the V3D_SHADING_TEXTURE_COLOR to the modes for OIT so the shaders are set. Reviewed By: fclem Maniphest Tasks: T62874 Differential Revision: https://developer.blender.org/D4592