1 files changed, 20 insertions, 1 deletions
diff --git a/src/rlgl.c b/src/rlgl.c
index cdce92d0..713646ac 100644
--- a/src/rlgl.c
+++ b/src/rlgl.c
@@ -307,6 +307,8 @@ static PFNGLDELETEVERTEXARRAYSOESPROC glDeleteVertexArrays;
 //static PFNGLISVERTEXARRAYOESPROC glIsVertexArray;        // NOTE: Fails in WebGL, omitted
 #endif
 
+static bool debugMarkerSupported = false;
+
 // Compressed textures support flags
 static bool texCompDXTSupported = false;    // DDS texture compression support
 static bool texNPOTSupported = false;       // NPOT textures full support
@@ -412,7 +414,7 @@ void rlPushMatrix(void)
     }
 
     stack[stackCounter] = *currentMatrix;
-    rlLoadIdentity();
+//    rlLoadIdentity();
     stackCounter++;
 
     if (currentMatrixMode == RL_MODELVIEW) useTempBuffer = true;
@@ -1135,6 +1137,10 @@ void rlglInit(int width, int height)
             glGetFloatv(0x84FF, &maxAnisotropicLevel);   // GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT
         }
 
+        if(strcmp(extList[i], (const char *)"GL_EXT_debug_marker") == 0) {
+            debugMarkerSupported = true;
+        }
+
         // Clamp mirror wrap mode supported
         if (strcmp(extList[i], (const char *)"GL_EXT_texture_mirror_clamp") == 0) texClampMirrorSupported = true;
     }
@@ -1160,6 +1166,8 @@ void rlglInit(int width, int height)
     if (texAnisotropicFilterSupported) TraceLog(LOG_INFO, "[EXTENSION] Anisotropic textures filtering supported (max: %.0fX)", maxAnisotropicLevel);
     if (texClampMirrorSupported) TraceLog(LOG_INFO, "[EXTENSION] Clamp mirror wrap texture mode supported");
 
+    if (debugMarkerSupported) TraceLog(LOG_INFO, "[EXTENSION] Debug Marker supported");
+
     // Initialize buffers, default shaders and default textures
     //----------------------------------------------------------
 
@@ -2539,6 +2547,12 @@ void SetMatrixModelview(Matrix view)
 #endif
 }
 
+Matrix GetMatrixModelview() {
+#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)
+    return modelview;
+#endif
+}
+
 // Generate cubemap texture from HDR texture
 // TODO: OpenGL ES 2.0 does not support GL_RGB16F texture format, neither GL_DEPTH_COMPONENT24
 Texture2D GenTextureCubemap(Shader shader, Texture2D skyHDR, int size)
@@ -4212,3 +4226,8 @@ void TraceLog(int msgType, const char *text, ...)
     if (msgType == LOG_ERROR) exit(1);
 }
 #endif
+
+void rlSetMarker(const char *text) {
+    if(debugMarkerSupported)
+        glInsertEventMarkerEXT(0, text);            //0 terminated string
+}