Update app.py

app.py

@@ -504,10 +504,6 @@ with gr.Blocks(css=css) as demo:
                     BABYLON.Tools.CreateScreenshotUsingRenderTarget(BABYLON.Engine.LastCreatedScene.getEngine(), BABYLON.Engine.LastCreatedScene.activeCamera, 
                       { precision: 1.0 }, (durl) => { 
                         var cnvs = document.getElementById(\"model3D\").getElementsByTagName(\"canvas\")[0]; //.getContext(\"webgl2\");
-                        var ctxt = document.getElementById(\"cnv_out\").getContext(\"2d\");
-                        document.getElementById(\"img_out\").onload = function() {
-                          ctxt.drawImage(img_out, 0, 0); 
-                        }
                         var svgd = `<svg id=\"svg_out\" viewBox=\"0 0 ` + cnvs.width + ` ` + cnvs.height + `\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">
                           <defs>
                             <filter id=\"blur\" x=\"0\" y=\"0\" xmlns=\"http://www.w3.org/2000/svg\">
@@ -525,7 +521,10 @@ with gr.Blocks(css=css) as demo:
                   // https://forum.babylonjs.com/t/best-way-to-save-to-jpeg-snapshots-of-scene/17663/11
                 }
               });
-            '/>snapshot</a><br/><img src='' id='img_out'/><br/>
+            '/>snapshot</a><br/><img src='' id='img_out' onload='
+              var ctxt = document.getElementById(\"cnv_out\").getContext(\"2d\");
+              ctxt.drawImage(this, 0, 0); 
+            '/><br/>
             <canvas id='cnv_out'/>""")
             render = gr.Button("Render")