diff options
Diffstat (limited to 'io_scene_gltf2/blender/exp/gltf2_blender_gather_materials_specular.py')
-rw-r--r-- | io_scene_gltf2/blender/exp/gltf2_blender_gather_materials_specular.py | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_materials_specular.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_materials_specular.py index 22414b13..9e0318ce 100644 --- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_materials_specular.py +++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_materials_specular.py @@ -120,9 +120,13 @@ def export_specular(blender_material, export_settings): return np.array([c[0] / l, c[1] / l, c[2] / l]) f0_from_ior = ((ior - 1)/(ior + 1))**2 - tint_strength = (1 - specular_tint) + normalize(base_color) * specular_tint - specular_color = (1 - transmission) * (1 / f0_from_ior) * 0.08 * specular * tint_strength + transmission * tint_strength - specular_extension['specularColorFactor'] = list(specular_color) + if f0_from_ior == 0: + specular_color = [1.0, 1.0, 1.0] + else: + tint_strength = (1 - specular_tint) + normalize(base_color) * specular_tint + specular_color = (1 - transmission) * (1 / f0_from_ior) * 0.08 * specular * tint_strength + transmission * tint_strength + specular_color = list(specular_color) + specular_extension['specularColorFactor'] = specular_color else: if specular_not_linked and specular == BLENDER_SPECULAR and specular_tint_not_linked and specular_tint == BLENDER_SPECULAR_TINT: return None, None |