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Diffstat (limited to 'io_scene_gltf2/blender/exp/gltf2_blender_gather_materials.py')
-rwxr-xr-xio_scene_gltf2/blender/exp/gltf2_blender_gather_materials.py62
1 files changed, 61 insertions, 1 deletions
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_materials.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_materials.py
index 35028e5b..42c71150 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_materials.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_materials.py
@@ -129,10 +129,18 @@ def __gather_emissive_texture(blender_material, export_settings):
def __gather_extensions(blender_material, export_settings):
extensions = {}
+ # KHR_materials_unlit
+
if gltf2_blender_get.get_socket_or_texture_slot(blender_material, "Background") is not None:
extensions["KHR_materials_unlit"] = Extension("KHR_materials_unlit", {}, False)
- # TODO specular glossiness extension
+ # KHR_materials_clearcoat
+
+ clearcoat_extension = __gather_clearcoat_extension(blender_material, export_settings)
+ if clearcoat_extension:
+ extensions["KHR_materials_clearcoat"] = clearcoat_extension
+
+ # TODO KHR_materials_pbrSpecularGlossiness
return extensions if extensions else None
@@ -217,3 +225,55 @@ def __has_image_node_from_socket(socket):
if not result:
return False
return True
+
+def __gather_clearcoat_extension(blender_material, export_settings):
+ clearcoat_enabled = False
+ has_clearcoat_texture = False
+ has_clearcoat_roughness_texture = False
+
+ clearcoat_extension = {}
+ clearcoat_roughness_slots = ()
+
+ clearcoat_socket = gltf2_blender_get.get_socket_or_texture_slot(blender_material, 'Clearcoat')
+ clearcoat_roughness_socket = gltf2_blender_get.get_socket_or_texture_slot(blender_material, 'Clearcoat Roughness')
+ clearcoat_normal_socket = gltf2_blender_get.get_socket_or_texture_slot(blender_material, 'Clearcoat Normal')
+
+ if isinstance(clearcoat_socket, bpy.types.NodeSocket) and not clearcoat_socket.is_linked:
+ clearcoat_extension['clearcoatFactor'] = clearcoat_socket.default_value
+ clearcoat_enabled = clearcoat_extension['clearcoatFactor'] > 0
+ elif __has_image_node_from_socket(clearcoat_socket):
+ clearcoat_extension['clearcoatFactor'] = 1
+ has_clearcoat_texture = True
+ clearcoat_enabled = True
+
+ if not clearcoat_enabled:
+ return None
+
+ if isinstance(clearcoat_roughness_socket, bpy.types.NodeSocket) and not clearcoat_roughness_socket.is_linked:
+ clearcoat_extension['clearcoatRoughnessFactor'] = clearcoat_roughness_socket.default_value
+ elif __has_image_node_from_socket(clearcoat_roughness_socket):
+ clearcoat_extension['clearcoatRoughnessFactor'] = 1
+ has_clearcoat_roughness_texture = True
+
+ # Pack clearcoat (R) and clearcoatRoughness (G) channels.
+ if has_clearcoat_texture and has_clearcoat_roughness_texture:
+ clearcoat_roughness_slots = (clearcoat_socket, clearcoat_roughness_socket,)
+ elif has_clearcoat_texture:
+ clearcoat_roughness_slots = (clearcoat_socket,)
+ elif has_clearcoat_roughness_texture:
+ clearcoat_roughness_slots = (clearcoat_roughness_socket,)
+
+ if len(clearcoat_roughness_slots) > 0:
+ combined_texture = gltf2_blender_gather_texture_info.gather_texture_info(clearcoat_roughness_slots, export_settings)
+ if has_clearcoat_texture:
+ clearcoat_extension['clearcoatTexture'] = combined_texture
+ if has_clearcoat_roughness_texture:
+ clearcoat_extension['clearcoatRoughnessTexture'] = combined_texture
+
+ if __has_image_node_from_socket(clearcoat_normal_socket):
+ clearcoat_extension['clearcoatNormalTexture'] = gltf2_blender_gather_material_normal_texture_info_class.gather_material_normal_texture_info_class(
+ (clearcoat_normal_socket,),
+ export_settings
+ )
+
+ return Extension('KHR_materials_clearcoat', clearcoat_extension, False)