Fix MSAA warning render pipeline

src/PostProcesses/RenderPipeline/postProcessRenderPipeline.ts

@@ -203,14 +203,17 @@ export class PostProcessRenderPipeline {
     protected _enableMSAAOnFirstPostProcess(sampleCount: number): boolean {
         // Set samples of the very first post process to 4 to enable native anti-aliasing in browsers that support webGL 2.0 (See: https://github.com/BabylonJS/Babylon.js/issues/3754)
         var effectKeys = Object.keys(this._renderEffects);
-        if (this.engine.webGLVersion >= 2 && effectKeys.length > 0) {
+        if (this.engine.webGLVersion === 1) {
+            return false;
+        }
+
+        if (effectKeys.length > 0) {
             var postProcesses = this._renderEffects[effectKeys[0]].getPostProcesses();
             if (postProcesses) {
                 postProcesses[0].samples = sampleCount;
-                return true;
             }
         }
-        return false;
+        return true;
     }
 
     /**