3 def create_technique_resource(material, resources):
4 from .datafile import Resource, Statement
5 tech_res = Resource(material.name+".tech", "technique")
7 mat_res = resources[material.name+".mat"]
9 st = Statement("pass", "")
10 st.sub.append(tech_res.create_embed_statement("material", mat_res))
12 if material.render_mode=='CUSTOM':
13 st.sub.append(Statement("shader", material.shader))
15 tech_res.statements.append(st)
19 class MaterialExporter:
21 self.use_textures = True
22 self.inline_texture_data = False
24 def create_texture_exporter(self):
25 from .export_texture import TextureExporter
26 texture_export = TextureExporter()
27 texture_export.inline_data = self.inline_texture_data
30 def export_technique_resources(self, material, resources):
31 texture_export = self.create_texture_exporter()
33 from .material import Material
34 material = Material(material)
37 for p in material.properties:
39 tex_name = p.texture.image.name+".tex2d"
40 if tex_name not in resources:
41 resources[tex_name] = texture_export.export_texture(p.texture, p.tex_usage)
43 mat_name = material.name+".mat"
44 if mat_name not in resources:
45 resources[mat_name] = self.export_material(material, resources=resources)
47 def export_technique(self, material, *, resources):
48 return create_technique_resource(material, resources)
50 def export_material(self, material, *, resources):
51 from .datafile import Resource, Statement
52 mat_res = Resource(material.name+".mat", "material")
55 st.sub.append(self.create_property_statement(mat_res, material.base_color, "base_color", resources))
56 st.sub.append(self.create_property_statement(mat_res, material.metalness, "metalness", resources))
57 st.sub.append(self.create_property_statement(mat_res, material.roughness, "roughness", resources))
58 st.sub.append(self.create_property_statement(mat_res, material.normal, "normal", resources, tex_only=True))
59 st.sub.append(self.create_property_statement(mat_res, material.emission, "emission", resources))
60 mat_res.statements.append(st)
64 def create_property_statement(self, mat_res, prop, keyword, resources, *, tex_only=False):
65 from .datafile import Statement
66 if self.use_textures and prop.texture:
67 tex_res = resources[prop.texture.image.name+".tex2d"]
68 fn = os.path.basename(prop.texture.image.filepath)
69 if prop.texture.default_filter and fn:
70 return Statement(keyword+"_map", fn)
72 return mat_res.create_reference_statement(keyword+"_map", tex_res)
73 elif type(prop.value)==tuple:
74 return Statement(keyword, *prop.value)
76 return Statement(keyword, prop.value)
79 class MaterialMapExporter:
83 def export_technique_resources(self, material_map, resources):
84 from .datafile import Resource, Statement, Token
85 base_color_name = material_map.name+"_base_color.tex2d"
86 if base_color_name not in resources:
87 base_color_res = Resource(base_color_name, "texture2d")
89 base_color_res.statements.append(Statement("min_filter", Token('NEAREST')))
90 base_color_res.statements.append(Statement("mag_filter", Token('NEAREST')))
91 base_color_res.statements.append(Statement("storage", Token('SRGB_ALPHA'), *material_map.size))
92 base_color_res.statements.append(Statement("raw_data", material_map.base_color_data))
94 resources[base_color_name] = base_color_res
96 mat_name = material_map.name+".mat"
97 if mat_name not in resources:
98 mat_res = Resource(mat_name, "material")
100 st.sub.append(mat_res.create_reference_statement("base_color_map", base_color_res))
101 mat_res.statements.append(st)
103 resources[mat_name] = mat_res
105 def export_technique(self, material_map, *, resources):
106 return create_technique_resource(material_map, resources)