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# SPDX-License-Identifier: Apache-2.0
# Copyright 2018-2022 The glTF-Blender-IO authors.
from ...io.com.gltf2_io import TextureInfo
from .gltf2_blender_texture import texture
from .gltf2_blender_image import BlenderImage
from ..exp.gltf2_blender_image import TmpImageGuard
import numpy as np
import bpy
def sheen( mh,
location_sheenColor,
location_sheenRoughness,
sheenColor_socket,
sheenRoughness_socket
):
x_sheenColor, y_sheenColor = location_sheenColor
x_sheenRoughness, y_sheenRoughness = location_sheenRoughness
try:
ext = mh.pymat.extensions['KHR_materials_sheen']
except Exception:
return
sheenColorFactor = ext.get('sheenColorFactor', [0.0, 0.0, 0.0])
tex_info_color = ext.get('sheenColorTexture')
if tex_info_color is not None:
tex_info_color = TextureInfo.from_dict(tex_info_color)
sheenRoughnessFactor = ext.get('sheenRoughnessFactor', 0.0)
tex_info_roughness = ext.get('sheenRoughnessTexture')
if tex_info_roughness is not None:
tex_info_roughness = TextureInfo.from_dict(tex_info_roughness)
if tex_info_color is None:
sheenColorFactor.extend([1.0])
sheenColor_socket.default_value = sheenColorFactor
else:
# Mix sheenColor factor
sheenColorFactor = sheenColorFactor + [1.0]
if sheenColorFactor != [1.0, 1.0, 1.0, 1.0]:
node = mh.node_tree.nodes.new('ShaderNodeMixRGB')
node.label = 'sheenColor Factor'
node.location = x_sheenColor - 140, y_sheenColor
node.blend_type = 'MULTIPLY'
# Outputs
mh.node_tree.links.new(sheenColor_socket, node.outputs[0])
# Inputs
node.inputs['Fac'].default_value = 1.0
sheenColor_socket = node.inputs['Color1']
node.inputs['Color2'].default_value = sheenColorFactor
x_sheenColor -= 200
texture(
mh,
tex_info=tex_info_color,
label='SHEEN COLOR',
location=(x_sheenColor, y_sheenColor),
color_socket=sheenColor_socket
)
if tex_info_roughness is None:
sheenRoughness_socket.default_value = sheenRoughnessFactor
else:
# Mix sheenRoughness factor
if sheenRoughnessFactor != 1.0:
node = mh.node_tree.nodes.new('ShaderNodeMath')
node.label = 'shennRoughness Factor'
node.location = x_sheenRoughness - 140, y_sheenRoughness
node.operation = 'MULTIPLY'
# Outputs
mh.node_tree.links.new(sheenRoughness_socket, node.outputs[0])
# Inputs
sheenRoughness_socket = node.inputs[0]
node.inputs[1].default_value = sheenRoughnessFactor
x_sheenRoughness -= 200
texture(
mh,
tex_info=tex_info_roughness,
label='SHEEN ROUGHNESS',
location=(x_sheenRoughness, y_sheenRoughness),
is_data=True,
color_socket=None,
alpha_socket=sheenRoughness_socket
)
return
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