From: Mikko Rasa <tdb@tdb.fi>
Date: Sun, 12 May 2019 06:59:53 +0000 (+0300)
Subject: Only use texunit zero in exporter-generated techniques
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=386861effd5e84c1a3a8f58f50fc1b1f75dafaa1

Only use texunit zero in exporter-generated techniques

It does not make much sense to use anything else without shaders, and
accessing the mesh to find out unit numbers is getting in the way of
some other changes.
---

diff --git a/blender/io_mspgl/export_object.py b/blender/io_mspgl/export_object.py
index 84c0a781..abe33630 100644
--- a/blender/io_mspgl/export_object.py
+++ b/blender/io_mspgl/export_object.py
@@ -159,11 +159,7 @@ class ObjectExporter:
 				out_file.begin("material")
 				out_file.write("diffuse", 1.0, 1.0, 1.0, 1.0)
 				out_file.end()
-				index = 0
-				for u in mesh.uv_layers:
-					if u.name=="material_tex":
-						index = u.unit
-				out_file.begin("texunit", index)
+				out_file.begin("texunit", 0)
 				out_file.begin("texture2d")
 				out_file.write("min_filter", "NEAREST")
 				out_file.write("mag_filter", "NEAREST")
@@ -183,34 +179,26 @@ class ObjectExporter:
 				out_file.end()
 
 			if self.textures!="NONE":
+				diffuse_tex = None
 				for slot in material.texture_slots:
-					if not slot:
-						continue
+					if slot and slot.texture.type=="IMAGE" and slot.use_map_color_diffuse:
+						diffuse_tex = slot.texture
+						break
 
-					tex = slot.texture
-					if tex.type!="IMAGE":
-						continue
-
-					if slot.uv_layer:
-						for u in mesh.uv_layers:
-							if u.name==slot.uv_layer:
-								index = u.unit
-					else:
-						index = mesh.uv_layers[0].unit
-
-					out_file.begin("texunit", index)
+				if diffuse_tex:
+					out_file.begin("texunit", 0)
 					if self.textures=="INLINE":
 						out_file.begin("texture2d")
 						out_file.write("min_filter", "LINEAR")
-						out_file.write("storage", "RGBA", tex.image.size[0], tex.image.size[1])
+						out_file.write("storage", "RGBA", diffuse_tex.image.size[0], diffuse_tex.image.size[1])
 						texdata = '"'
-						for p in tex.image.pixels:
+						for p in diffuse_tex.image.pixels:
 							texdata += "\\x%02X"%int(p*255)
 						texdata += '"'
 						out_file.write("raw_data", texdata)
 						out_file.end()
 					else:
-						out_file.write("texture", '"%s"'%image_name(tex.image))
+						out_file.write("texture", '"%s"'%image_name(diffuse_tex.image))
 					out_file.end()
 
 		out_file.end()