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WebGPURenderer: Improve compatibilityMode support for MRT#32973

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sunag wants to merge 1 commit intomrdoob:devfrom
sunag:dev-webgpu-blending
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WebGPURenderer: Improve compatibilityMode support for MRT#32973
sunag wants to merge 1 commit intomrdoob:devfrom
sunag:dev-webgpu-blending

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@sunag
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@sunag sunag commented Feb 8, 2026

Related issue: #30725 (comment)

Description

Added a warning about the limitation in WebGPU in compatibility mode and WebGL2 fallback, but keep the examples working within this limitation, using the same blending for all MRT attachments.

@sunag sunag added this to the r183 milestone Feb 8, 2026
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github-actions bot commented Feb 8, 2026

📦 Bundle size

Full ESM build, minified and gzipped.

Before After Diff
WebGL 359.19
85.29
359.19
85.29
+0 B
+0 B
WebGPU 619.36
172.53
619.76
172.71
+410 B
+181 B
WebGPU Nodes 617.94
172.28
618.35
172.47
+410 B
+181 B

🌳 Bundle size after tree-shaking

Minimal build including a renderer, camera, empty scene, and dependencies.

Before After Diff
WebGL 490.85
119.65
490.85
119.65
+0 B
+0 B
WebGPU 692.96
187.55
693.37
187.73
+412 B
+174 B
WebGPU Nodes 642.17
174.93
642.58
175.09
+412 B
+168 B

@sunag sunag marked this pull request as ready for review February 8, 2026 16:42
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