BGE: "Fix" for issue [#33663] "Objects Share Materials / Textures When Grouped In SingleTexture / MultiTexture Mode" reported by Josiah Lane (solarlune).

This commit adds a UI option in the Render properties to enable the new material caching in the converter. This caching can cause problems with Singletexture and Multitexture materials when texface is being used to handle materials. By default this option is enabled and users with broken games have two options:

  1) Fix up their materials so they are properly using textures
  2) Disable the material caching and take a speed hit during conversion time

Regardless of the setting, caching is always enabled for GLSL materials.

1 files changed, 12 insertions, 1 deletions

diff --git a/source/gameengine/Converter/KX_BlenderSceneConverter.cpp b/source/gameengine/Converter/KX_BlenderSceneConverter.cpp
index ceaa0a5f5a8..5524612f707 100644
--- a/source/gameengine/Converter/KX_BlenderSceneConverter.cpp
+++ b/source/gameengine/Converter/KX_BlenderSceneConverter.cpp
@@ -131,7 +131,8 @@ KX_BlenderSceneConverter::KX_BlenderSceneConverter(
 							m_ketsjiEngine(engine),
 							m_alwaysUseExpandFraming(false),
 							m_usemat(false),
-							m_useglslmat(false)
+							m_useglslmat(false),
+							m_use_mat_cache(true)
 {
 	tag_main(maggie, 0); /* avoid re-tagging later on */
 	m_newfilename = "";
@@ -488,6 +489,11 @@ void KX_BlenderSceneConverter::SetGLSLMaterials(bool val)
 	m_useglslmat = val;
 }
 
+void KX_BlenderSceneConverter::SetCacheMaterials(bool val)
+{
+	m_use_mat_cache = val;
+}
+
 bool KX_BlenderSceneConverter::GetMaterials()
 {
 	return m_usemat;
@@ -498,6 +504,11 @@ bool KX_BlenderSceneConverter::GetGLSLMaterials()
 	return m_useglslmat;
 }
 
+bool KX_BlenderSceneConverter::GetCacheMaterials()
+{
+	return m_use_mat_cache;
+}
+
 void KX_BlenderSceneConverter::RegisterBlenderMaterial(BL_Material *mat)
 {
 	// First make sure we don't register the material twice