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", "")
11 st.sub.append(tech_res.create_embed_statement("material", mat_res))
13 if material.render_mode=='CUSTOM':
14 shader = material.shader
15 if shader.endswith(".glsl"):
17 st.sub.append(Statement("shader", shader))
20 ss = Statement("uniforms")
21 for u in material.uniforms:
22 ss.sub.append(Statement("uniform", u.name, *u.values[:u.size]))
24 elif material.receive_shadows:
25 st.sub.append(Statement("receive_shadows", True))
27 tech_res.statements.append(st)
29 if material.shadow_method!='NONE':
30 st = Statement("pass", "shadow")
31 st.sub.append(Statement("shader", "_occluder.glsl.shader"))
32 tech_res.statements.append(st)
36 class MaterialExporter:
37 def create_texture_exporter(self):
38 from .export_texture import TextureExporter
39 texture_export = TextureExporter()
42 def export_technique_resources(self, material, resources):
43 from .export_texture import SamplerExporter
44 texture_export = self.create_texture_exporter()
45 sampler_export = SamplerExporter()
47 from .material import Material
48 material = Material(material)
50 for p in material.properties:
52 tex_name = p.texture.image.name+".tex2d"
53 if tex_name not in resources:
54 resources[tex_name] = texture_export.export_texture(p.texture, p.tex_usage, invert_green=p.invert_green)
56 samp_name = sampler_export.get_sampler_name(p.texture)
57 if samp_name not in resources:
58 resources[samp_name] = sampler_export.export_sampler(p.texture)
60 mat_name = material.name+".mat"
61 if mat_name not in resources:
63 resources[mat_name] = self.export_material(material, resources)
65 resources[mat_name] = None
67 def export_technique(self, material, resources):
68 return create_technique_resource(material, resources)
70 def export_material(self, material, resources):
71 from .datafile import Resource, Statement, Token
72 mat_res = Resource(material.name+".mat", "material")
74 if material.type!="pbr" and material.type!="unlit":
75 raise Exception("Can't export material {} of unknown type {}".format(material.name, material.type))
77 mat_res.statements.append(Statement("type", Token(material.type)));
78 for p in material.properties:
79 st = self.create_property_statement(mat_res, p, resources)
81 mat_res.statements.append(st)
82 textures = [p.texture for p in material.properties if p.texture]
83 if textures and not all(t.default_filter for t in textures):
84 from .export_texture import SamplerExporter
85 sampler_tex = next(t for t in textures if not t.default_filter)
86 sampler_export = SamplerExporter()
87 mat_res.statements.append(mat_res.create_reference_statement("sampler", resources[sampler_export.get_sampler_name(sampler_tex)]))
91 def create_property_statement(self, mat_res, prop, resources):
92 from .datafile import Statement
94 tex_res = resources[prop.texture.image.name+".tex2d"]
95 from .util import basename
96 fn = basename(prop.texture.image.filepath)
97 if prop.texture.default_filter and fn:
98 return Statement(prop.tex_keyword, fn)
100 return mat_res.create_reference_statement(prop.tex_keyword, tex_res)
101 elif not prop.keyword:
103 elif type(prop.value)==tuple:
104 return Statement(prop.keyword, *prop.value)
106 return Statement(prop.keyword, prop.value)
109 class MaterialAtlasExporter:
113 def export_technique_resources(self, material_atlas, resources):
114 from .datafile import Resource, Statement, Token
115 base_color_name = material_atlas.name+"_base_color.tex2d"
116 base_color_res = resources.get(base_color_name)
117 if not base_color_res:
118 base_color_res = Resource(base_color_name, "texture2d")
120 base_color_res.statements.append(Statement("storage", Token('SRGB_ALPHA'), *material_atlas.size))
121 base_color_res.statements.append(Statement("raw_data", material_atlas.base_color_data))
123 resources[base_color_name] = base_color_res
125 sampler_name = "nearest.samp"
126 sampler_res = resources.get(sampler_name)
128 sampler_res = Resource(sampler_name, "sampler")
130 sampler_res.statements.append(Statement("filter", Token('NEAREST')))
132 resources[sampler_name] = sampler_res
134 mat_name = material_atlas.name+".mat"
135 if mat_name not in resources:
136 mat_res = Resource(mat_name, "material")
137 mat_res.statements.append(Statement("type", Token('pbr')))
138 mat_res.statements.append(mat_res.create_reference_statement("base_color_map", base_color_res))
139 mat_res.statements.append(mat_res.create_reference_statement("sampler", sampler_res))
141 resources[mat_name] = mat_res
143 def export_technique(self, material_atlas, resources):
144 return create_technique_resource(material_atlas, resources)