from .datafile import Resource, Statement, Token
scene_res = Resource(scene.name+".scene", "scene")
- if scene.background_set:
+ if scene.background_set or (scene.instances and scene.blended_instances):
scene_res.statements.append(Statement("type", Token("ordered")))
if scene.background_set:
scene_res.statements.append(scene_res.create_reference_statement("scene", resources[scene.background_set.name+".scene"]))
- st = Statement("scene")
- st.sub.append(Statement("type", Token("simple")))
- self.add_instances(scene_res, st.sub, scene.instances, resources)
- scene_res.statements.append(st)
+ if scene.instances:
+ st = Statement("scene")
+ st.sub.append(Statement("type", Token("simple")))
+ self.add_instances(scene_res, st.sub, scene.instances, resources)
+ scene_res.statements.append(st)
+
+ if scene.blended_instances:
+ st = Statement("scene")
+ st.sub.append(Statement("type", Token("zsorted")))
+ self.add_instances(scene_res, st.sub, scene.blended_instances, resources)
+ scene_res.statements.append(st)
else:
- scene_res.statements.append(Statement("type", Token("simple")))
+ scene_type = "zsorted" if scene.blended_instances else "simple"
+ scene_res.statements.append(Statement("type", Token(scene_type)))
self.add_instances(scene_res, scene_res.statements, scene.instances, resources)
+ self.add_instances(scene_res, scene_res.statements, scene.blended_instances, resources)
return scene_res
ss.sub.append(Statement("depth", 1.0))
seq_res.statements.append(ss)
- ss = Statement("step", "", "content")
- ss.sub.append(Statement("depth_test", Token("LEQUAL")))
- ss.sub.append(seq_res.create_reference_statement("lighting", resources[scene.name+".lightn"]))
- ss.sub.append(seq_res.create_reference_statement("scene", resources[scene.name+".scene"]))
- seq_res.statements.append(ss)
+ scene_res = resources[scene.name+".scene"]
+ lighting_res = resources[scene.name+".lightn"]
+
+ any_opaque = False
+ any_blended = False
+ s = scene
+ while s:
+ if s.instances:
+ any_opaque = True
+ if s.blended_instances:
+ any_blended = True
+ s = s.background_set
+
+ if any_opaque:
+ ss = Statement("step", "", "content")
+ ss.sub.append(Statement("depth_test", Token("LEQUAL")))
+ ss.sub.append(seq_res.create_reference_statement("lighting", lighting_res))
+ ss.sub.append(seq_res.create_reference_statement("scene", scene_res))
+ seq_res.statements.append(ss)
+
+ if any_blended:
+ ss = Statement("step", "blended", "content")
+ ss.sub.append(Statement("depth_test", Token("LEQUAL")))
+ ss.sub.append(seq_res.create_reference_statement("lighting", lighting_res))
+ ss.sub.append(seq_res.create_reference_statement("scene", scene_res))
+ seq_res.statements.append(ss)
if scene.use_ao:
ss = Statement("ambient_occlusion")