CODEWITHSUNDEEP
webglautodesk-viewer
pab4ing
pab4ing

Reputation: 21

Warning: "Too many active WebGL contexts. Oldest context will be lost" (WebGLRenderer.js)

In Autodesk Forge Viewer I cannot instantiate more than 6 viewers (Autodesk.Viewing.ViewingApplication) on the same page.

I've tried a solution proposed here which doesn't work: There are too many active WebGL contexts on this page, the oldest context will be lost. [dedup.min.js]

The function I use:

Autodesk.Viewing.Initializer(options, function onInitialized(){
                this.viewerApp = new Autodesk.Viewing.ViewingApplication(this.div_id);
                this.viewerApp.registerViewer(this.viewerApp.k3D, Autodesk.Viewing.Private.GuiViewer3D, { extensions: ['PropertyInspectorExtension']});
                this.viewerApp.loadDocument(documentId, onDocumentLoadSuccess, onDocumentLoadFailure);
            }.bind(this));

Apparently, there is a way* to do it with Three.js but is it somehow implemented in Autodesk Forge ? Otherwise I don't know how to do it myself.

*Answers: Display multiple instances of three.js in a single page Is it possible to enable unbounded number of renderers in THREE.js?

*Example of result: https://threejs.org/examples/webgl_multiple_elements.html

Upvotes: 0

Views: 4830

Answers (1)

Robert Massa
Robert Massa

Reputation: 4598

I know this is a bit of a workaround, but you could use this command line switch with Chrome:

--max-active-webgl-contexts=<number>

Of course this will only fix it for you and not anyone else, but sometimes that's enough.

Upvotes: 2

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