Why render.setShaderAuto() causes directional lighting not to work

[serega-kkz]

@enricfur
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Directional Lighting not working when imported with panda3d-gltf, but does when imported with assimp

I have created a module that converts the output file panda3d-gltf/panda3d-blend2bam in accordance with the standard auto shader. fix_gltf_bam.py from panda3d.core import MaterialAttrib, Vec4, TextureAttrib, RenderState, TextureStage def render_stage_convert(node, use_modulate = False, use_normal = False, use_selector = False, use_emission = False): for node_path in node.find_all_matches('**/+GeomNode'): geom_node = node_path.node() new_render_state = RenderState.make_empt…