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Merge pull request #2074 from alicevision/mug/scenePreviewFreestyle

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[blender] preview: use Freestyle for line art shading
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Candice Bentéjac 2023-06-21 12:43:49 +02:00 • committed by GitHub
commit 851099d7a7
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1 changed files with 13 additions and 30 deletions
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meshroom/nodes/blender/scripts/preview.py
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@ -216,37 +216,20 @@ def setupWireframeShading(mesh, color):
def setupLineArtShading(obj, mesh, color):
'''Setup materials and Solidify modifier for line art shading.'''
# Transparent filling material
matFill = bpy.data.materials.new('Fill')
matFill.use_backface_culling = True
matFill.use_nodes = True
matFill.blend_method = 'BLEND'
matFill.show_transparent_back = False
matFill.node_tree.links.clear()
nodeTransparent = matFill.node_tree.nodes.new(type='ShaderNodeBsdfTransparent')
nodeOutputFill = matFill.node_tree.nodes['Material Output']
matFill.node_tree.links.new(nodeTransparent.outputs['BSDF'], nodeOutputFill.inputs['Surface'])
# Colored edge material
matEdge = bpy.data.materials.new('Edge')
matEdge.use_backface_culling = True
matEdge.use_nodes = True
matEdge.blend_method = 'BLEND'
matEdge.node_tree.links.clear()
nodeEmission = matEdge.node_tree.nodes.new(type='ShaderNodeEmission')
nodeEmission.inputs['Color'].default_value = color
nodeOutputEdge = matEdge.node_tree.nodes['Material Output']
matEdge.node_tree.links.new(nodeEmission.outputs['Emission'], nodeOutputEdge.inputs['Surface'])
# Apply materials to mesh
'''Setup line art shading using Freestyle.'''
# Freestyle
bpy.context.scene.render.use_freestyle = True
bpy.data.linestyles["LineStyle"].color = (color[0], color[1], color[2])
# Holdout material
material = bpy.data.materials.new('Holdout')
material.use_nodes = True
material.node_tree.links.clear()
nodeHoldout = material.node_tree.nodes.new(type='ShaderNodeHoldout')
nodeOutput = material.node_tree.nodes['Material Output']
material.node_tree.links.new(nodeHoldout.outputs['Holdout'], nodeOutput.inputs['Surface'])
# Apply material to mesh
mesh.materials.clear()
mesh.materials.append(matFill)
mesh.materials.append(matEdge)
# Solidify modifier
solidify = obj.modifiers.new('Solidify', type='SOLIDIFY')
solidify.thickness = -0.01
solidify.use_rim = False
solidify.use_flip_normals = True
solidify.material_offset = 1
mesh.materials.append(material)
def setupPointCloudShading(obj, color, size):