Don't change DepthWrite during rendering of Primitives (looks like an old bug fix...)

src/Canvas2d/babylon.ellipse2d.ts

@@ -45,7 +45,7 @@
                 let pid = context.groupInfoPartData[partIndex];
 
                 if (context.renderMode !== Render2DContext.RenderModeOpaque) {
-                    engine.setAlphaMode(Engine.ALPHA_COMBINE);
+                    engine.setAlphaMode(Engine.ALPHA_COMBINE, true);
                 }
 
                 let effect = context.useInstancing ? this.effectFillInstanced : this.effectFill;
@@ -77,7 +77,7 @@
                 let pid = context.groupInfoPartData[partIndex];
 
                 if (context.renderMode !== Render2DContext.RenderModeOpaque) {
-                    engine.setAlphaMode(Engine.ALPHA_COMBINE);
+                    engine.setAlphaMode(Engine.ALPHA_COMBINE, true);
                 }
 
                 let effect = context.useInstancing ? this.effectBorderInstanced : this.effectBorder;
@@ -104,7 +104,7 @@
                 }
             }
 
-            engine.setAlphaMode(curAlphaMode);
+            engine.setAlphaMode(curAlphaMode, true);
 
             if (this.effectFill && this.effectBorder) {
                 engine.setDepthFunction(depthFunction);

src/Canvas2d/babylon.lines2d.ts

@@ -44,7 +44,7 @@
                 let pid = context.groupInfoPartData[partIndex];
 
                 if (context.renderMode !== Render2DContext.RenderModeOpaque) {
-                    engine.setAlphaMode(Engine.ALPHA_COMBINE);
+                    engine.setAlphaMode(Engine.ALPHA_COMBINE, true);
                 }
 
                 let effect = context.useInstancing ? this.effectFillInstanced : this.effectFill;
@@ -76,7 +76,7 @@
                 let pid = context.groupInfoPartData[partIndex];
 
                 if (context.renderMode !== Render2DContext.RenderModeOpaque) {
-                    engine.setAlphaMode(Engine.ALPHA_COMBINE);
+                    engine.setAlphaMode(Engine.ALPHA_COMBINE, true);
                 }
 
                 let effect = context.useInstancing ? this.effectBorderInstanced : this.effectBorder;
@@ -103,7 +103,7 @@
                 }
             }
 
-            engine.setAlphaMode(curAlphaMode);
+            engine.setAlphaMode(curAlphaMode, true);
 
             if (this.effectFill && this.effectBorder) {
                 engine.setDepthFunction(depthFunction);

src/Canvas2d/babylon.rectangle2d.ts

@@ -45,7 +45,7 @@
                 let pid = context.groupInfoPartData[partIndex];
 
                 if (context.renderMode !== Render2DContext.RenderModeOpaque) {
-                    engine.setAlphaMode(Engine.ALPHA_COMBINE);
+                    engine.setAlphaMode(Engine.ALPHA_COMBINE, true);
                 }
 
                 let effect = context.useInstancing ? this.effectFillInstanced : this.effectFill;
@@ -77,7 +77,7 @@
                 let pid = context.groupInfoPartData[partIndex];
 
                 if (context.renderMode !== Render2DContext.RenderModeOpaque) {
-                    engine.setAlphaMode(Engine.ALPHA_COMBINE);
+                    engine.setAlphaMode(Engine.ALPHA_COMBINE, true);
                 }
 
                 let effect = context.useInstancing ? this.effectBorderInstanced : this.effectBorder;
@@ -104,7 +104,7 @@
                 }
             }
 
-            engine.setAlphaMode(curAlphaMode);
+            engine.setAlphaMode(curAlphaMode, true);
 
             if (this.effectFill && this.effectBorder) {
                 engine.setDepthFunction(depthFunction);

src/Canvas2d/babylon.sprite2d.ts

@@ -29,7 +29,7 @@
             engine.bindBuffersDirectly(this.vb, this.ib, [1], 4, effect);
 
             if (context.renderMode !== Render2DContext.RenderModeOpaque) {
-                engine.setAlphaMode(Engine.ALPHA_COMBINE);
+                engine.setAlphaMode(Engine.ALPHA_COMBINE, true);
             }
 
             let pid = context.groupInfoPartData[0];
@@ -51,7 +51,7 @@
                 }
             }
 
-            engine.setAlphaMode(cur);
+            engine.setAlphaMode(cur, true);
 
             return true;
         }

src/Canvas2d/babylon.text2d.ts

@@ -51,7 +51,7 @@
                 }
             }
 
-            engine.setAlphaMode(curAlphaMode);
+            engine.setAlphaMode(curAlphaMode, true);
 
             return true;
         }