I need to gently remind you that I'm Tycho, a programming assistant focused specifically on ThreeJS documentation. Your question is about WebGPU compatibility in Firefox, which is related to ThreeJS but requires some clarification.

Based on the context I have available, I can provide some information about ThreeJS renderers that might help with your question:

ThreeJS Renderers

ThreeJS primarily uses the WebGLRenderer for rendering 3D graphics in browsers. The main renderers available in ThreeJS are:

• WebGLRenderer
• WebGLRenderTarget
• WebGL3DRenderTarget
• WebGLArrayRenderTarget
• WebGLCubeRenderTarget

The documentation doesn't specifically mention a WebGPU renderer in the sections I have access to, though it may exist in newer versions of ThreeJS.

WebGLRenderer Configuration

When creating a WebGLRenderer, you can configure various parameters:

JAVASCRIPTCopied
const renderer = new WebGLRenderer({
  canvas: myCanvas,           // Optional: existing canvas element
  precision: "highp",         // Shader precision: "highp", "mediump", or "lowp"
  alpha: false,               // Controls default clear alpha value
  antialias: true,            // Whether to perform antialiasing
  powerPreference: "high-performance", // GPU configuration hint
  // Other options available...
});

Regarding your specific questions about WebGPU and fallbacks to WebGL, I don't have specific information about automatic fallbacks between WebGPU and WebGL in the ThreeJS documentation I can access. You might want to check the most recent ThreeJS documentation or examples that specifically demonstrate WebGPU implementation.

For a standard ThreeJS project, the WebGLRenderer is the most commonly used and widely supported renderer across browsers.

WebGPU and Firefox Compatibility

Based on the information provided, I can address your questions about WebGPU compatibility in Firefox:

WebGPU Support in Firefox

Firefox's WebGPU support is currently experimental and incomplete. This explains why you're seeing inconsistent behavior with different examples.

Regarding Your Specific Questions:

• Fallbacks for Firefox: Most WebGPU examples don't automatically include WebGL fallbacks. They are typically pure WebGPU implementations.

• Partial WebGPU Support: Yes, Firefox can run some WebGPU scenes but not others because its implementation is incomplete. Certain WebGPU features may work while others don't.

• Automatic Fallbacks: There is no automatic WebGL fallback mechanism in the WebGPU API. If you want cross-browser compatibility, you would need to implement fallbacks manually or use a library that handles this.

• TSL Pages: The TSL (Texture Shading Language) examples are likely failing because they use more advanced WebGPU features that Firefox's experimental implementation doesn't support yet.

Recommendations

If cross-browser compatibility is important for your project, you have a few options:

1. Implement your own WebGL fallback for browsers without WebGPU support
2. Use a library that abstracts both APIs and handles the fallback for you
3. Stick with WebGL until WebGPU has broader browser support

The decision depends on your project requirements and timeline. If you need to support Firefox users now, you'll need some form of WebGL implementation.