X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=blender%2Fio_mspgl%2Fexport_scene.py;h=162a1882b5e8d135168600da6e0bd2550fd00f21;hb=7833c79d7d8c0741f7f3a99c7af24654a2d2f811;hp=0fb12dd37de74268723e51ce077370585d19055a;hpb=c17add060e6db20bb4de3965801565f2f5f0c275;p=libs%2Fgl.git

diff --git a/blender/io_mspgl/export_scene.py b/blender/io_mspgl/export_scene.py
index 0fb12dd3..162a1882 100644
--- a/blender/io_mspgl/export_scene.py
+++ b/blender/io_mspgl/export_scene.py
@@ -37,9 +37,35 @@ class SceneExporter:
 		from .datafile import Resource, Statement, Token
 		scene_res = Resource(scene.name+".scene", "scene")
 
-		scene_res.statements.append(Statement("type", Token("simple")))
+		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"]))
+
+			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_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
+
+	def add_instances(self, scene_res, statements, instances, resources):
+		from .datafile import Statement
 
-		for i in scene.instances:
+		for i in instances:
 			obj_res = resources[i.prototype+".object"]
 			st = scene_res.create_reference_statement("object", obj_res, i.name)
 
@@ -59,23 +85,11 @@ class SceneExporter:
 			ss.sub.append(Statement("scale", *tuple(scale)))
 
 			st.sub.append(ss)
-			scene_res.statements.append(st)
-
-		return scene_res
+			statements.append(st)
 
 	def export_sequence_resources(self, scene, resources):
 		from .datafile import Resource, Statement, Token
 
-		if scene.background_set:
-			wrapper_name = scene.name+".wrapper.scene"
-			if wrapper_name not in resources:
-				wrapper_res = Resource(wrapper_name, "scene")
-				wrapper_res.statements.append(Statement("type", Token("ordered")))
-				for s in scene.get_chain():
-					wrapper_res.statements.append(wrapper_res.create_reference_statement("scene", resources[s.name+".scene"]))
-
-				resources[wrapper_name] = wrapper_res
-
 		lights = []
 		s = scene
 		while s:
@@ -108,20 +122,37 @@ class SceneExporter:
 		if scene.use_hdr:
 			seq_res.statements.append(Statement("hdr", True))
 
-		content = scene
-		if scene.background_set:
-			content = resources[scene.name+".wrapper.scene"]
-
 		ss = Statement("clear")
 		ss.sub.append(Statement("color", 0.0, 0.0, 0.0, 0.0))
 		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", content))
-		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")