3 def create_technique_resource(material, resources):
4 from .datafile import Resource, Statement, Token
5 tech_res = Resource(material.name+".tech", "technique")
7 mat_res = resources[material.name+".mat"]
9 if material.render_mode=='CUSTOM':
10 for m in material.render_methods:
11 st = Statement("method", m.tag)
12 if mat_res and m.use_material:
13 st.sub.append(tech_res.create_reference_statement("material", mat_res))
16 if shader.endswith(".glsl"):
18 st.sub.append(Statement("shader", shader))
21 ss = Statement("uniforms")
22 for u in material.uniforms:
23 ss.sub.append(Statement("uniform", u.name, *u.values[:u.size]))
26 tech_res.statements.append(st)
28 base_method = "blended" if material.blended else ""
29 st = Statement("method", base_method)
31 st.sub.append(tech_res.create_embed_statement("material", mat_res))
34 ss.sub.append(Statement("blend", Token("SRC_ALPHA"), Token("ONE_MINUS_SRC_ALPHA")))
35 if material.receive_shadows:
36 st.sub.append(Statement("receive_shadows", True))
37 if material.image_based_lighting:
38 st.sub.append(Statement("image_based_lighting", True))
40 tech_res.statements.append(st)
42 if material.cast_shadows:
43 st = Statement("method", "shadow")
44 st.sub.append(Statement("shader", "occluder.glsl.shader"))
45 tech_res.statements.append(st)
47 st = Statement("method", "shadow_thsm")
48 st.sub.append(Statement("shader", "occluder_thsm.glsl.shader"))
49 tech_res.statements.append(st)
53 class MaterialExporter:
54 def export_technique_resources(self, material, resources):
55 from .export_texture import SamplerExporter, TextureExporter
56 texture_export = TextureExporter()
57 sampler_export = SamplerExporter()
59 from .material import Material
60 if type(material)!=Material:
61 material = Material(material)
63 for p in material.properties:
65 tex_name = p.texture.image.name+".tex2d"
66 if tex_name not in resources:
67 resources[tex_name] = texture_export.export_texture(p.texture, p.tex_usage, invert_green=p.invert_green)
69 samp_name = sampler_export.get_sampler_name(p.texture)
70 if samp_name not in resources:
71 resources[samp_name] = sampler_export.export_sampler(p.texture)
73 mat_name = material.name+".mat"
74 if mat_name not in resources:
76 resources[mat_name] = self.export_material(material, resources)
78 resources[mat_name] = None
80 def export_technique(self, material, resources):
81 from .material import Material
82 if type(material)!=Material:
83 material = Material(material)
85 return create_technique_resource(material, resources)
87 def export_material(self, material, resources):
88 from .datafile import Resource, Statement, Token
89 mat_res = Resource(material.name+".mat", "material")
91 if material.type!="pbr" and material.type!="unlit":
92 raise Exception("Can't export material {} of unknown type {}".format(material.name, material.type))
94 mat_res.statements.append(Statement("type", Token(material.type)));
95 for p in material.properties:
96 st = self.create_property_statement(mat_res, p, resources)
98 mat_res.statements.append(st)
99 textures = [p.texture for p in material.properties if p.texture]
101 from .export_texture import SamplerExporter
102 sampler_export = SamplerExporter()
103 mat_res.statements.append(mat_res.create_reference_statement("sampler", resources[sampler_export.get_sampler_name(textures[0])]))
107 def create_property_statement(self, mat_res, prop, resources):
108 from .datafile import Statement
110 tex_res = resources[prop.texture.image.name+".tex2d"]
111 from .util import basename
112 return mat_res.create_reference_statement(prop.tex_keyword, tex_res)
113 elif not prop.keyword:
115 elif type(prop.value)==tuple:
116 return Statement(prop.keyword, *prop.value)
118 return Statement(prop.keyword, prop.value)
121 class MaterialAtlasExporter:
125 def export_technique_resources(self, material_atlas, resources):
126 from .datafile import Resource, Statement, Token
127 base_color_name = material_atlas.name+"_base_color.tex2d"
128 base_color_res = resources.get(base_color_name)
129 if not base_color_res:
130 base_color_res = Resource(base_color_name, "texture2d")
132 base_color_res.statements.append(Statement("storage", Token('SRGB_ALPHA'), *material_atlas.size))
133 base_color_res.statements.append(Statement("raw_data", material_atlas.base_color_data))
135 resources[base_color_name] = base_color_res
137 sampler_name = "nearest.samp"
138 sampler_res = resources.get(sampler_name)
140 sampler_res = Resource(sampler_name, "sampler")
142 sampler_res.statements.append(Statement("filter", Token('NEAREST')))
144 resources[sampler_name] = sampler_res
146 mat_name = material_atlas.name+".mat"
147 if mat_name not in resources:
148 mat_res = Resource(mat_name, "material")
149 mat_res.statements.append(Statement("type", Token('pbr')))
150 mat_res.statements.append(mat_res.create_reference_statement("base_color_map", base_color_res))
151 mat_res.statements.append(mat_res.create_reference_statement("sampler", sampler_res))
153 resources[mat_name] = mat_res
155 def export_technique(self, material_atlas, resources):
156 return create_technique_resource(material_atlas, resources)