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glTF importer: Fix alpha usage in unlit material 

Using emission node + is camera ray
This commit is contained in:
Julien Duroure 2019-02-01 19:22:32 +01:00
parent d5a570ddb9
commit 787a1b8f1e
1 changed files with 29 additions and 3 deletions
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32
io_scene_gltf2/blender/imp/gltf2_blender_pbrMetallicRoughness.py
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@ -55,8 +55,8 @@ class BlenderPbr():
main_node = node_tree.nodes.new('ShaderNodeBsdfPrincipled')
main_node.location = 0, 0
elif nodetype == "unlit":
main_node = node_tree.nodes.new('ShaderNodeBackground')
main_node.location = 0, 0
main_node = node_tree.nodes.new('ShaderNodeEmission')
main_node.location = 750, -300
if pypbr.color_type == gltf.SIMPLE:
@ -297,6 +297,32 @@ class BlenderPbr():
node_tree.links.new(metallic_text.inputs[0], metallic_mapping.outputs[0])
# link node to output
if nodetype == 'principled':
node_tree.links.new(output_node.inputs[0], main_node.outputs[0])
elif nodetype == 'unlit':
mix = node_tree.nodes.new('ShaderNodeMixShader')
mix.location = 1000, 0
path = node_tree.nodes.new('ShaderNodeLightPath')
path.location = 500, 300
if pypbr.color_type != gltf.SIMPLE:
math = node_tree.nodes.new('ShaderNodeMath')
math.location = 750, 200
math.operation = 'MULTIPLY'
node_tree.links.new(output_node.inputs[0], main_node.outputs[0])
# Set material alpha mode to blend
# This is needed for Eevee
material.blend_method = 'HASHED' # TODO check best result in eevee
transparent = node_tree.nodes.new('ShaderNodeBsdfTransparent')
transparent.location = 750, 0
node_tree.links.new(output_node.inputs[0], mix.outputs[0])
node_tree.links.new(mix.inputs[2], main_node.outputs[0])
node_tree.links.new(mix.inputs[1], transparent.outputs[0])
if pypbr.color_type != gltf.SIMPLE:
node_tree.links.new(math.inputs[0], path.outputs[0])
node_tree.links.new(math.inputs[1], text_node.outputs[1])
node_tree.links.new(mix.inputs[0], math.outputs[0])
else:
node_tree.links.new(mix.inputs[0], path.outputs[0])