livecode
diff --git a/‎engine/src/tilecachecg.cpp
Copy file name to clipboardExpand all lines: engine/src/tilecachecg.cpp
+2-2Lines changed: 2 additions & 2 deletions b/‎engine/src/tilecachecg.cpp
Copy file name to clipboardExpand all lines: engine/src/tilecachecg.cpp
+2-2Lines changed: 2 additions & 2 deletions
diff --git a/‎engine/src/tilecachegl.cpp
Copy file name to clipboardExpand all lines: engine/src/tilecachegl.cpp
+60Lines changed: 60 additions & 0 deletions b/‎engine/src/tilecachegl.cpp
Copy file name to clipboardExpand all lines: engine/src/tilecachegl.cpp
+60Lines changed: 60 additions & 0 deletions
@@ -199,8 +199,6 @@ bool MCTileCacheCoreGraphicsCompositor_BeginLayer(void *p_context, const MCRecta
                 t_blend_mode = kCGBlendModeClear;
                 break;
             case GXblendSrc:
-            case GXblendSrcOver:
-            case GXcopy:
                 t_blend_mode = kCGBlendModeCopy;
                 break;
             case GXblendDst:
@@ -232,6 +230,8 @@ bool MCTileCacheCoreGraphicsCompositor_BeginLayer(void *p_context, const MCRecta
             case GXblendPlus:
                 t_blend_mode = kCGBlendModePlusLighter;
                 break;
+            case GXblendSrcOver:
+            case GXcopy:
             default:
 				t_blend_mode = kCGBlendModeNormal;
 				break;
 
@@ -555,6 +555,66 @@ bool MCTileCacheOpenGLCompositor_BeginLayer(void *p_context, const MCRectangle&
         self -> is_blending = true;
         glEnable(GL_BLEND);
     }
+    
+    switch(p_ink)
+    {
+        case GXblendClear:
+        case GXclear:
+            glBlendFunc(GL_ZERO, GL_ONE_MINUS_SRC_ALPHA);
+            break;
+        case GXblendSrc:
+            glBlendFunc(GL_ONE, GL_ZERO);
+            break;
+        case GXblendDst:
+            glBlendFunc(GL_ZERO, GL_ONE);
+            break;
+        case GXblendDstOver:
+            glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_ONE);
+            break;
+        case GXblendSrcIn:
+            glBlendFunc(GL_DST_ALPHA, GL_ZERO);
+            break;
+        case GXblendDstIn:
+            glBlendFunc(GL_ZERO, GL_SRC_ALPHA);
+            break;
+        case GXblendSrcOut:
+            glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_ZERO);
+            break;
+        case GXblendDstOut:
+            glBlendFunc(GL_ZERO, GL_ONE_MINUS_SRC_ALPHA);
+            break;
+        case GXblendSrcAtop:
+            glBlendFunc(GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+            break;
+        case GXblendDstAtop:
+            glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA);
+            break;
+        case GXblendXor:
+        case GXxor:
+            glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+            break;
+        case GXblendPlus:
+            glBlendFunc(GL_ONE, GL_ONE);
+            break;
+        case GXblendScreen:
+            glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_COLOR);
+            break;
+        case GXblendMultiply:
+        case GXblendOverlay:
+        case GXblendDarken:
+        case GXblendLighten:
+        case GXblendDodge:
+        case GXblendBurn:
+        case GXblendSoftLight:
+        case GXblendHardLight:
+        case GXblendDifference:
+        case GXblendExclusion:
+        case GXblendSrcOver:
+        case GXcopy:
+        default:
+            glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
+            break;
+    }
 
 	self -> current_opacity = p_opacity;