-import os
-
-def create_technique_resource(material, resources):
- from .datafile import Resource, Statement, Token
- tech_res = Resource(material.name+".tech", "technique")
-
- mat_res = resources[material.name+".mat"]
-
- blend_st = None
- if material.blend_type=='ALPHA':
- blend_st = Statement("blend", Token("SRC_ALPHA"), Token("ONE_MINUS_SRC_ALPHA"))
- elif material.blend_type=='ADDITIVE':
- blend_st = Statement("blend", Token("ONE"), Token("ONE"))
- elif material.blend_type=='ADDITIVE_ALPHA':
- blend_st = Statement("blend", Token("SRC_ALPHA"), Token("ONE"))
-
- if material.render_mode=='CUSTOM':
- for m in material.render_methods:
- st = Statement("method", m.tag)
- if mat_res and m.use_material:
- st.sub.append(tech_res.create_reference_statement("material", mat_res))
-
- if m.tag=="blended" and blend_st:
- st.sub.append(blend_st)
-
- shader = m.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)
- else:
- base_method = "blended" if material.blend_type!='NONE' else ""
- st = Statement("method", base_method)
- if mat_res:
- st.sub.append(tech_res.create_embed_statement("material", mat_res))
-
- if blend_st:
- st.sub.append(blend_st)
- if material.receive_shadows:
- st.sub.append(Statement("receive_shadows", True))
- if material.image_based_lighting:
- st.sub.append(Statement("image_based_lighting", True))
-
- tech_res.statements.append(st)
-
- if material.cast_shadows:
- st = Statement("method", "shadow")
- st.sub.append(Statement("shader", "occluder.glsl.shader"))
- tech_res.statements.append(st)
-
- st = Statement("method", "shadow_thsm")
- st.sub.append(Statement("shader", "occluder_thsm.glsl.shader"))
- tech_res.statements.append(st)
-
- return tech_res
+import itertools
class MaterialExporter:
def export_technique_resources(self, ctx, material, resources):
if type(material)!=Material:
material = Material(material)
- textured_props = [p for p in material.properties if p.texture]
+ textured_props = [p for p in itertools.chain(material.properties, *(s.properties for s in material.sub_materials)) if p.texture]
ctx.set_slices(len(textured_props)+1)
for p in textured_props:
ctx.next_slice(p.texture.image)
- tex_name = p.texture.image.name+".tex"
+ tex_name = texture_export.get_texture_name(p.texture, p.tex_channels)
if tex_name not in resources:
resources[tex_name] = texture_export.export_texture(p.texture, p.tex_channels)
else:
resources[mat_name] = None
+ for thsm in (False, True):
+ occluder_variant, occluder_spec_values = self.get_occluder_shader_variant(material, thsm)
+ if occluder_spec_values:
+ base_variant = "_thsm" if thsm else ""
+ shader_name = "occluder{}.shader".format(occluder_variant)
+ if shader_name not in resources:
+ resources[shader_name] = self.export_shader(shader_name, "occluder{}.glsl".format(base_variant), occluder_spec_values, resources)
+
def export_technique(self, material, resources):
from .material import Material
if type(material)!=Material:
material = Material(material)
- return create_technique_resource(material, resources)
+ from .datafile import Resource, Statement, Token
+ tech_res = Resource(material.name+".tech", "technique")
+
+ mat_res = resources[material.name+".mat"]
+
+ blend_st = None
+ if material.blend_type=='ALPHA':
+ blend_st = Statement("blend", Token("SRC_ALPHA"), Token("ONE_MINUS_SRC_ALPHA"))
+ elif material.blend_type=='ADDITIVE':
+ blend_st = Statement("blend", Token("ONE"), Token("ONE"))
+ elif material.blend_type=='ADDITIVE_ALPHA':
+ blend_st = Statement("blend", Token("SRC_ALPHA"), Token("ONE"))
+
+ if material.render_mode=='CUSTOM':
+ for m in material.render_methods:
+ st = Statement("method", m.tag)
+ if mat_res and m.use_material:
+ st.sub.append(tech_res.create_reference_statement("material", mat_res))
+
+ if m.tag=="blended" and blend_st:
+ st.sub.append(blend_st)
+
+ shader = m.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)
+
+ if material.face_cull=='BACK':
+ st.sub.append(Statement("face_cull", Token("CULL_BACK")))
+
+ tech_res.statements.append(st)
+ else:
+ base_method = "blended" if material.blend_type!='NONE' else ""
+ st = Statement("method", base_method)
+ if mat_res:
+ st.sub.append(tech_res.create_embed_statement("material", mat_res))
+
+ if blend_st:
+ st.sub.append(blend_st)
+ elif material.alpha_cutoff>0.0:
+ ss = Statement("blend")
+ ss.sub.append(Statement("alpha_to_coverage", True))
+ st.sub.append(ss)
+ if material.receive_shadows:
+ st.sub.append(Statement("receive_shadows", True))
+ if material.image_based_lighting:
+ st.sub.append(Statement("image_based_lighting", True))
+ if material.instancing:
+ st.sub.append(Statement("instancing", True))
+ if material.face_cull=='BACK':
+ st.sub.append(Statement("face_cull", Token("CULL_BACK")))
+
+ tech_res.statements.append(st)
+
+ if material.cast_shadows:
+ tech_res.statements.append(self.create_shadow_method(tech_res, material, resources, False));
+ tech_res.statements.append(self.create_shadow_method(tech_res, material, resources, True));
+
+ return tech_res
+
+ def create_shadow_method(self, tech_res, material, resources, thsm):
+ from .datafile import Statement, Token
+
+ occluder_variant, occluder_spec_values = self.get_occluder_shader_variant(material, thsm)
+
+ shader_stem = "occluder{}.shader" if occluder_spec_values else "occluder{}.glsl.shader"
+ shader_name = shader_stem.format(occluder_variant)
+
+ st = Statement("method", "shadow"+("_thsm" if thsm else ""))
+ if occluder_spec_values:
+ st.sub.append(tech_res.create_reference_statement("shader", resources[shader_name]))
+ else:
+ st.sub.append(Statement("shader", shader_name))
+
+ if occluder_spec_values.get("use_alpha_cutoff"):
+ ss = Statement("texture", "alpha_map")
+
+ from .export_texture import TextureExporter
+ from .export_texture import SamplerExporter
+ texture_export = TextureExporter()
+ sampler_export = SamplerExporter()
+
+ color_prop = material.properties[0]
+ tex_res = resources[texture_export.get_texture_name(color_prop.texture, color_prop.tex_channels)]
+ ss.sub.append(tech_res.create_reference_statement("texture", tex_res))
+ ss.sub.append(tech_res.create_reference_statement("sampler", resources[sampler_export.get_sampler_name(color_prop.texture)]))
+ st.sub.append(ss)
+
+ ss = Statement("uniforms")
+ ss.sub.append(Statement("uniform", "alpha_cutoff", material.alpha_cutoff))
+ st.sub.append(ss)
+
+ if material.face_cull=='BACK':
+ st.sub.append(Statement("face_cull", Token("CULL_BACK")))
+
+ return st;
+
+ def get_occluder_shader_variant(self, material, thsm):
+ variant = ""
+ if thsm:
+ variant += "_thsm"
+
+ spec_values = {}
+
+ if material.cast_shadows and material.alpha_cutoff>0.0:
+ spec_values["use_alpha_cutoff"] = True
+ variant += "_masked"
+ if material.instancing:
+ spec_values["use_instancing"] = True
+ variant += "_instanced"
+
+ return (variant, spec_values)
def export_material(self, material, resources):
from .datafile import Resource, Statement, Token
mat_res = Resource(material.name+".mat", "material")
- if material.type!="pbr" and material.type!="unlit":
+ if material.type!="pbr" and material.type!="unlit" and material.type!="splat":
raise Exception("Can't export material {} of unknown type {}".format(material.name, material.type))
mat_res.statements.append(Statement("type", Token(material.type)));
st = self.create_property_statement(mat_res, p, resources)
if st:
mat_res.statements.append(st)
- textures = [p.texture for p in material.properties if p.texture]
+
+ if material.sub_materials:
+ for k, s in material.array_storage.items():
+ mat_res.statements.append(Statement(k.replace("_map", "_storage"), Token(s[0]), s[1], s[2]))
+ for s in material.sub_materials:
+ st = Statement("sub")
+ for p in s.properties:
+ ss = self.create_property_statement(mat_res, p, resources, raw_texture=True)
+ if ss:
+ st.sub.append(ss)
+ mat_res.statements.append(st)
+
+ textures = [p.texture for p in itertools.chain(material.properties, *(s.properties for s in material.sub_materials)) if p.texture]
if textures:
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])]))
+ if material.alpha_cutoff>0.0:
+ mat_res.statements.append(Statement("alpha_cutoff", material.alpha_cutoff))
return mat_res
- def create_property_statement(self, mat_res, prop, resources):
+ def create_property_statement(self, mat_res, prop, resources, *, raw_texture=False):
from .datafile import Statement
if prop.texture:
- tex_res = resources[prop.texture.image.name+".tex"]
+ from .export_texture import TextureExporter
+ texture_export = TextureExporter()
+ tex_res = resources[texture_export.get_texture_name(prop.texture, prop.tex_channels)]
+ if raw_texture:
+ for s in tex_res.statements:
+ if s.keyword.startswith("external_data"):
+ return mat_res.create_reference_statement(prop.tex_keyword, s.args[0])
+ elif s.keyword.startswith("external_image"):
+ return Statement(prop.tex_keyword, s.args[0])
return mat_res.create_reference_statement(prop.tex_keyword, tex_res)
elif not prop.keyword:
return
else:
return Statement(prop.keyword, prop.value)
+ def export_shader(self, name, module, spec_values, resources):
+ from .datafile import Resource, Statement
+ shader_res = Resource(name, "shader")
-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.tex"
- base_color_res = resources.get(base_color_name)
- if not base_color_res:
- base_color_res = Resource(base_color_name, "texture")
-
- base_color_res.statements.append(Statement("type", Token("\\2d")))
- 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
+ st = Statement("module", module)
+ for k, v in spec_values.items():
+ st.sub.append(Statement("specialize", k, v))
+ shader_res.statements.append(st)
- def export_technique(self, material_atlas, resources):
- return create_technique_resource(material_atlas, resources)
+ return shader_res
projects / libs / gl.git / blobdiff