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"]
11 blend_st = Statement("blend", Token("SRC_ALPHA"), Token("ONE_MINUS_SRC_ALPHA"))
13 if material.render_mode=='CUSTOM':
14 for m in material.render_methods:
15 st = Statement("method", m.tag)
16 if mat_res and m.use_material:
17 st.sub.append(tech_res.create_reference_statement("material", mat_res))
19 if m.tag=="blended" and blend_st:
20 st.sub.append(blend_st)
23 if shader.endswith(".glsl"):
25 st.sub.append(Statement("shader", shader))
28 ss = Statement("uniforms")
29 for u in material.uniforms:
30 ss.sub.append(Statement("uniform", u.name, *u.values[:u.size]))
33 tech_res.statements.append(st)
35 base_method = "blended" if material.blended else ""
36 st = Statement("method", base_method)
38 st.sub.append(tech_res.create_embed_statement("material", mat_res))
41 st.sub.append(blend_st)
42 if material.receive_shadows:
43 st.sub.append(Statement("receive_shadows", True))
44 if material.image_based_lighting:
45 st.sub.append(Statement("image_based_lighting", True))
47 tech_res.statements.append(st)
49 if material.cast_shadows:
50 st = Statement("method", "shadow")
51 st.sub.append(Statement("shader", "occluder.glsl.shader"))
52 tech_res.statements.append(st)
54 st = Statement("method", "shadow_thsm")
55 st.sub.append(Statement("shader", "occluder_thsm.glsl.shader"))
56 tech_res.statements.append(st)
60 class MaterialExporter:
61 def export_technique_resources(self, material, resources):
62 from .export_texture import SamplerExporter, TextureExporter
63 texture_export = TextureExporter()
64 sampler_export = SamplerExporter()
66 from .material import Material
67 if type(material)!=Material:
68 material = Material(material)
70 for p in material.properties:
72 tex_name = p.texture.image.name+".tex2d"
73 if tex_name not in resources:
74 resources[tex_name] = texture_export.export_texture(p.texture, p.tex_usage, invert_green=p.invert_green)
76 samp_name = sampler_export.get_sampler_name(p.texture)
77 if samp_name not in resources:
78 resources[samp_name] = sampler_export.export_sampler(p.texture)
80 mat_name = material.name+".mat"
81 if mat_name not in resources:
83 resources[mat_name] = self.export_material(material, resources)
85 resources[mat_name] = None
87 def export_technique(self, material, resources):
88 from .material import Material
89 if type(material)!=Material:
90 material = Material(material)
92 return create_technique_resource(material, resources)
94 def export_material(self, material, resources):
95 from .datafile import Resource, Statement, Token
96 mat_res = Resource(material.name+".mat", "material")
98 if material.type!="pbr" and material.type!="unlit":
99 raise Exception("Can't export material {} of unknown type {}".format(material.name, material.type))
101 mat_res.statements.append(Statement("type", Token(material.type)));
102 for p in material.properties:
103 st = self.create_property_statement(mat_res, p, resources)
105 mat_res.statements.append(st)
106 textures = [p.texture for p in material.properties if p.texture]
108 from .export_texture import SamplerExporter
109 sampler_export = SamplerExporter()
110 mat_res.statements.append(mat_res.create_reference_statement("sampler", resources[sampler_export.get_sampler_name(textures[0])]))
114 def create_property_statement(self, mat_res, prop, resources):
115 from .datafile import Statement
117 tex_res = resources[prop.texture.image.name+".tex2d"]
118 from .util import basename
119 return mat_res.create_reference_statement(prop.tex_keyword, tex_res)
120 elif not prop.keyword:
122 elif type(prop.value)==tuple:
123 return Statement(prop.keyword, *prop.value)
125 return Statement(prop.keyword, prop.value)
128 class MaterialAtlasExporter:
132 def export_technique_resources(self, material_atlas, resources):
133 from .datafile import Resource, Statement, Token
134 base_color_name = material_atlas.name+"_base_color.tex2d"
135 base_color_res = resources.get(base_color_name)
136 if not base_color_res:
137 base_color_res = Resource(base_color_name, "texture2d")
139 base_color_res.statements.append(Statement("storage", Token('SRGB_ALPHA'), *material_atlas.size))
140 base_color_res.statements.append(Statement("raw_data", material_atlas.base_color_data))
142 resources[base_color_name] = base_color_res
144 sampler_name = "nearest.samp"
145 sampler_res = resources.get(sampler_name)
147 sampler_res = Resource(sampler_name, "sampler")
149 sampler_res.statements.append(Statement("filter", Token('NEAREST')))
151 resources[sampler_name] = sampler_res
153 mat_name = material_atlas.name+".mat"
154 if mat_name not in resources:
155 mat_res = Resource(mat_name, "material")
156 mat_res.statements.append(Statement("type", Token('pbr')))
157 mat_res.statements.append(mat_res.create_reference_statement("base_color_map", base_color_res))
158 mat_res.statements.append(mat_res.create_reference_statement("sampler", sampler_res))
160 resources[mat_name] = mat_res
162 def export_technique(self, material_atlas, resources):
163 return create_technique_resource(material_atlas, resources)