+import itertools
+
class MaterialExporter:
def export_technique_resources(self, ctx, material, resources):
from .export_texture import SamplerExporter, TextureExporter
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:
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:
spec_values = {}
- color_prop = material.properties[0]
if material.cast_shadows and material.alpha_cutoff>0.0:
spec_values["use_alpha_cutoff"] = True
variant += "_masked"
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()
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:
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