import os
-def linear_to_srgb(l):
- if l<0.0031308:
- return 12.92*l
- else:
- return 1.055*(l**(1/2.4))-0.055
+def create_technique_resource(material, resources):
+ from .datafile import Resource, Statement
+ tech_res = Resource(material.name+".tech", "technique")
-def get_colormap(srgb):
- if srgb:
- return linear_to_srgb
- else:
- return lambda x: x
+ mat_res = resources[material.name+".mat"]
+ st = Statement("pass", "")
+ if mat_res:
+ st.sub.append(tech_res.create_embed_statement("material", mat_res))
+
+ if material.render_mode=='CUSTOM':
+ shader = material.shader
+ if shader.endswith(".glsl"):
+ shader += ".shader"
+ st.sub.append(Statement("shader", shader))
+
+ if material.uniforms:
+ ss = Statement("uniforms")
+ for u in material.uniforms:
+ ss.sub.append(Statement("uniform", u.name, *u.values[:u.size]))
+ st.sub.append(ss)
+
+ tech_res.statements.append(st)
+
+ return tech_res
class MaterialExporter:
def __init__(self):
- self.single_file = True
self.use_textures = True
+ self.inline_texture_data = False
def create_texture_exporter(self):
from .export_texture import TextureExporter
texture_export = TextureExporter()
- texture_export.inline_data = self.single_file
+ texture_export.inline_data = self.inline_texture_data
return texture_export
def export_technique_resources(self, material, resources):
+ from .export_texture import SamplerExporter
texture_export = self.create_texture_exporter()
+ sampler_export = SamplerExporter()
- mat_name = material.name+".mat"
- if mat_name not in resources:
- resources[mat_name] = self.export_material(material)
+ from .material import Material
+ material = Material(material)
if self.use_textures:
- for s in material.texture_slots:
- if s and s.texture.type=='IMAGE' and s.texture.image:
- tex_name = s.texture.name+".tex2d"
+ for p in material.properties:
+ if p.texture:
+ tex_name = p.texture.image.name+".tex2d"
if tex_name not in resources:
- resources[tex_name] = texture_export.export_texture(s.texture)
+ resources[tex_name] = texture_export.export_texture(p.texture, p.tex_usage)
+
+ samp_name = sampler_export.get_sampler_name(p.texture)
+ if samp_name not in resources:
+ resources[samp_name] = sampler_export.export_sampler(p.texture)
+
+ mat_name = material.name+".mat"
+ if mat_name not in resources:
+ if material.type:
+ resources[mat_name] = self.export_material(material, resources=resources)
+ else:
+ resources[mat_name] = None
def export_technique(self, material, *, resources):
- from .datafile import Resource, Statement
- tech_res = Resource(material.name+".tech")
+ return create_technique_resource(material, resources)
+
+ def export_material(self, material, *, resources):
+ from .datafile import Resource, Statement, Token
+ mat_res = Resource(material.name+".mat", "material")
- mat_res = resources[material.name+".mat"]
- textures = {}
+ if material.type!="pbr" and material.type!="unlit":
+ raise Exception("Can't export unknown material type "+material.type)
+
+ mat_res.statements.append(Statement("type", Token(material.type)));
+ for p in material.properties:
+ st = self.create_property_statement(mat_res, p, resources)
+ if st:
+ mat_res.statements.append(st)
if self.use_textures:
- image_texture_slots = [s for s in material.texture_slots if s and s.texture.type=='IMAGE' and s.texture.image]
- for s in image_texture_slots:
- if s.use_map_color_diffuse:
- textures["diffuse_map"] = s.texture
- elif s.use_map_normal:
- textures["normal_map"] = s.texture
-
- if material.technique:
- if not obj.inherit_tech:
- return []
-
- if self.single_file:
- raise Exception("Can't export inherited technique to a single file")
-
- st = Statement("inherit", material.technique)
- for s, t in textures.items():
- if t.default_filter:
- st.sub.append(Statement("texture", s, image_name(t.image)))
- else:
- st.sub.append(tech_res.create_reference_statement("texture", s, resources[t.name+".tex2d"]))
- if material.override_material:
- st.sub.append(tech_res.create_reference_statement("material", "surface", mat_res))
- tech_res.statements.append(st)
- else:
- st = Statement("pass", "")
- if self.single_file:
- st.sub.append(tech_res.create_embed_statement("material", mat_res))
+ textures = [p.texture for p in material.properties if p.texture]
+ if textures and not textures[0].default_filter:
+ from .export_texture import SamplerExporter
+ sampler_export = SamplerExporter()
+ mat_res.statements.append(mat_res.create_reference_statement("sampler", resources[sampler_export.get_sampler_name(textures[0])]))
+
+ return mat_res
+
+ def create_property_statement(self, mat_res, prop, resources):
+ from .datafile import Statement
+ if self.use_textures and prop.texture:
+ tex_res = resources[prop.texture.image.name+".tex2d"]
+ from .util import basename
+ fn = basename(prop.texture.image.filepath)
+ if prop.texture.default_filter and fn:
+ return Statement(prop.tex_keyword, fn)
else:
- st.sub.append(tech_res.create_reference_statement("material", mat_res))
-
- if "diffuse_map" in textures:
- diffuse_tex = textures["diffuse_map"]
- tex_res = resources[diffuse_tex.name+".tex2d"]
- ss = Statement("texunit", 0)
- if self.single_file:
- ss.sub.append(tech_res.create_embed_statement("texture2d", tex_res))
- elif not diffuse_tex.default_filter:
- ss.sub.append(tech_res.create_reference_statement("texture2d", tex_res))
- else:
- ss.sub.append(Statement("texture", image_name(diffuse_tex.image)))
- st.sub.append(ss)
-
- tech_res.statements.append(st)
-
- return tech_res
-
- def export_material(self, material):
- from .datafile import Resource, Statement
- mat_res = Resource(material.name+".mat")
- statements = mat_res.statements
-
- cm = get_colormap(material.srgb_colors)
- if any(s.use_map_color_diffuse for s in material.texture_slots if s):
- statements.append(Statement("diffuse", 1.0, 1.0, 1.0, 1.0))
- amb = cm(material.ambient)
- statements.append(Statement("ambient", amb, amb, amb, 1.0))
+ return mat_res.create_reference_statement(prop.tex_keyword, tex_res)
+ elif not prop.keyword:
+ return
+ elif type(prop.value)==tuple:
+ return Statement(prop.keyword, *prop.value)
else:
- diff = material.diffuse_color*material.diffuse_intensity
- statements.append(Statement("diffuse", cm(diff.r), cm(diff.g), cm(diff.b), 1.0))
- amb = diff*material.ambient
- statements.append(Statement("ambient", cm(amb.r), cm(amb.g), cm(amb.b), 1.0))
- spec = material.specular_color*material.specular_intensity
- statements.append(Statement("specular", cm(spec.r), cm(spec.g), cm(spec.g), 1.0))
- statements.append(Statement("shininess", material.specular_hardness))
+ return Statement(prop.keyword, prop.value)
- return mat_res
+
+class MaterialAtlasExporter:
+ def __init__(self):
+ pass
+
+ def export_technique_resources(self, material_atlas, resources):
+ from .datafile import Resource, Statement, Token
+ base_color_name = material_atlas.name+"_base_color.tex2d"
+ base_color_res = resources.get(base_color_name)
+ if not base_color_res:
+ base_color_res = Resource(base_color_name, "texture2d")
+
+ base_color_res.statements.append(Statement("storage", Token('SRGB_ALPHA'), *material_atlas.size))
+ base_color_res.statements.append(Statement("raw_data", material_atlas.base_color_data))
+
+ resources[base_color_name] = base_color_res
+
+ sampler_name = "nearest.samp"
+ sampler_res = resources.get(sampler_name)
+ if not sampler_res:
+ sampler_res = Resource(sampler_name, "sampler")
+
+ sampler_res.statements.append(Statement("filter", Token('NEAREST')))
+
+ resources[sampler_name] = sampler_res
+
+ mat_name = material_atlas.name+".mat"
+ if mat_name not in resources:
+ mat_res = Resource(mat_name, "material")
+ mat_res.statements.append(Statement("type", Token('pbr')))
+ mat_res.statements.append(mat_res.create_reference_statement("base_color_map", base_color_res))
+ mat_res.statements.append(mat_res.create_reference_statement("sampler", sampler_res))
+
+ resources[mat_name] = mat_res
+
+ def export_technique(self, material_atlas, *, resources):
+ return create_technique_resource(material_atlas, resources)
projects / libs / gl.git / blobdiff