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fix(export): prefer the WebGL renderer on Linux #930

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fix(export): prefer the WebGL renderer on Linux #930

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20 changes: 15 additions & 5 deletions src/lib/exporter/modernFrameRenderer.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -638,14 +638,24 @@ export class FrameRenderer {
};

const preferredRenderBackend = this.config.preferredRenderBackend;
const backendOrder: ExportRenderBackend[] =
preferredRenderBackend === "webgl"
const webgpuRuntimeAvailable = typeof navigator !== "undefined" && "gpu" in navigator;
// On Linux the WebGPU export path is unreliable. Under a Wayland session
// Chromium reports "'--ozone-platform=wayland' is not compatible with
// Vulkan", Dawn comes up degraded, and the Pixi WebGPU bind group code then
// throws "Cannot read properties of undefined (reading '_resourceType')"
// partway through the export. WebGL through ANGLE works on both Wayland and
// X11, so prefer it there unless the caller explicitly asked for WebGPU.
const preferWebglOnThisPlatform =
typeof navigator !== "undefined" && /Linux/i.test(navigator.userAgent);
const backendOrder: ExportRenderBackend[] = !webgpuRuntimeAvailable
? ["webgl"]
: preferredRenderBackend === "webgl"
? ["webgl", "webgpu"]
: preferredRenderBackend === "webgpu"
? ["webgpu", "webgl"]
: typeof navigator !== "undefined" && "gpu" in navigator
? ["webgpu", "webgl"]
: ["webgl"];
: preferWebglOnThisPlatform
? ["webgl", "webgpu"]
: ["webgpu", "webgl"];
const failures: PixiRendererAttempt[] = [];

for (const backend of backendOrder) {
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