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Add new shader to display the section as a thick line on the mesh

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This commit is contained in:
Gorgious56
2023-04-05 14:22:22 +02:00
parent 6b67532228
commit d717fe040d
1 changed files with 32 additions and 24 deletions
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src/blenderbim/blenderbim/bim/operator.py
+32 -24
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@@ -101,6 +101,7 @@ class SelectIfcFile(bpy.types.Operator, IFCFileSelector):
context.window_manager.fileselect_add(self)
return {"RUNNING_MODAL"}
class ReloadSelectedIfcFile(bpy.types.Operator, IFCFileSelector):
bl_idname = "bim.reload_selected_ifc_file"
bl_label = "Reload selected IFC File"
@@ -114,6 +115,7 @@ class ReloadSelectedIfcFile(bpy.types.Operator, IFCFileSelector):
context.scene.BIMProperties.ifc_file = context.scene.BIMProperties.ifc_file
return {"FINISHED"}
class SelectDataDir(bpy.types.Operator):
bl_idname = "bim.select_data_dir"
bl_label = "Select Data Directory"
@@ -250,7 +252,6 @@ class BIM_OT_add_section_plane(bpy.types.Operator):
group.links.new(compare.outputs[0], group_output.inputs["Line Decorator"])
def create_section_override_node(self, obj, context):
# Add a new socket to group input / output https://blender.stackexchange.com/a/5446/86891
group = bpy.data.node_groups.new("Section Override", type="ShaderNodeTree")
group.inputs.new("NodeSocketShader", "Shader")
group.outputs.new("NodeSocketShader", "Shader")
@@ -259,44 +260,51 @@ class BIM_OT_add_section_plane(bpy.types.Operator):
group_input = nodes.new(type="NodeGroupInput")
group_output = nodes.new(type="NodeGroupOutput")
group_output.location = 600, 250
group_output.location = 800, 250
backfacing_mix = nodes.new(type="ShaderNodeMixShader")
backfacing_mix.location = group_output.location - Vector((400, 350))
mix_decorator = group.nodes.new(type="ShaderNodeMixShader")
mix_decorator.name = "Line Decorator Mix"
mix_decorator.location = group_output.location - Vector((200, 0))
mix_section = group.nodes.new(type="ShaderNodeMixShader")
mix_section.name = "Section Mix"
mix_section.inputs[0].default_value = 1 # Directly pass input shader when there is no cutaway
mix_section.location = mix_decorator.location - Vector((200, 200))
transparent = nodes.new(type="ShaderNodeBsdfTransparent")
transparent.location = mix_section.location - Vector((200, 100))
mix_backfacing = nodes.new(type="ShaderNodeMixShader")
mix_backfacing.location = mix_section.location - Vector((200, 0))
group_input.location = mix_backfacing.location - Vector((200, 50))
backfacing = nodes.new(type="ShaderNodeNewGeometry")
backfacing.location = backfacing_mix.location + Vector((-200, 200))
group_input.location = backfacing_mix.location - Vector((200, 50))
backfacing.location = mix_backfacing.location + Vector((-200, 200))
emission = nodes.new(type="ShaderNodeEmission")
emission.inputs[0].default_value = list(context.scene.BIMProperties.section_plane_colour) + [1]
emission.location = backfacing_mix.location - Vector((200, 150))
transparent = nodes.new(type="ShaderNodeBsdfTransparent")
transparent.location = group_output.location - Vector((400, 100))
section_mix = group.nodes.new(type="ShaderNodeMixShader")
section_mix.name = "Section Mix"
section_mix.inputs[0].default_value = 1 # Directly pass input shader when there is no cutaway
section_mix.location = group_output.location - Vector((200, 0))
emission.location = mix_backfacing.location - Vector((200, 150))
cut_obj = nodes.new(type="ShaderNodeTexCoord")
cut_obj.object = obj
cut_obj.location = group_output.location - Vector((800, 150))
cut_obj.location = backfacing.location - Vector((200, 200))
section_compare = nodes.new(type="ShaderNodeGroup")
section_compare.node_tree = bpy.data.node_groups.get("Section Compare")
section_compare.name = "Last Section Compare"
section_compare.location = group_output.location - Vector((600, 0))
section_compare.location = backfacing.location + Vector((0, 200))
links.new(cut_obj.outputs["Object"], section_compare.inputs[1])
links.new(backfacing.outputs["Backfacing"], backfacing_mix.inputs[0])
links.new(group_input.outputs["Shader"], backfacing_mix.inputs[1])
links.new(emission.outputs["Emission"], backfacing_mix.inputs[2])
links.new(section_compare.outputs[0], section_mix.inputs[0])
links.new(transparent.outputs["BSDF"], section_mix.inputs[1])
links.new(backfacing_mix.outputs["Shader"], section_mix.inputs[2])
links.new(section_mix.outputs["Shader"], group_output.inputs["Shader"])
links.new(backfacing.outputs["Backfacing"], mix_backfacing.inputs[0])
links.new(group_input.outputs["Shader"], mix_backfacing.inputs[1])
links.new(emission.outputs["Emission"], mix_backfacing.inputs[2])
links.new(section_compare.outputs["Value"], mix_section.inputs[0])
links.new(transparent.outputs[0], mix_section.inputs[1])
links.new(mix_backfacing.outputs["Shader"], mix_section.inputs[2])
links.new(section_compare.outputs["Line Decorator"], mix_decorator.inputs[0])
links.new(mix_section.outputs["Shader"], mix_decorator.inputs[1])
links.new(mix_decorator.outputs["Shader"], group_output.inputs["Shader"])
def append_obj_to_section_override_node(self, obj):
group = bpy.data.node_groups.get("Section Override")