WebGPURenderer: Fix DepthTexture if used compatibilityMode:true

[sunag]

Related issue: #30725

Description

Fix DepthTexture if used compatibilityMode:true.

[Copilot]

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

Comments suppressed due to low confidence (3)

src/renderers/webgpu/utils/WebGPUBindingUtils.js:106

• Using 'GPUSamplerBindingType.NonFiltering' in compatibility mode differs from the default behavior. Please verify that this new assignment correctly matches the platform's expected sampling behavior.

else if ( backend.compatibilityMode ) {

src/renderers/webgpu/nodes/WGSLNodeBuilder.js:551

• Appending '.x' to the texture load result assumes a vector type output; confirm that this manipulation is valid for all depth texture cases under compatibility mode.

if ( this.renderer.backend.compatibilityMode && texture.isDepthTexture ) {

src/renderers/webgpu/nodes/WGSLNodeBuilder.js:1674

• The reassignment of the texture type to 'texture${ multisampled }_2d' when compareFunction is null may affect depth sampling behavior; please ensure this change is consistent with the intended WGSL semantics.

if ( this.renderer.backend.compatibilityMode && texture.compareFunction === null ) {

[github-actions]

📦 Bundle size

Full ESM build, minified and gzipped.

	Before	After	Diff
WebGL	336.44 78.37	336.44 78.37	+0 B +0 B
WebGPU	541.67 150.04	541.97 150.12	+300 B +80 B
WebGPU Nodes	541.14 149.93	541.44 150.01	+300 B +79 B

🌳 Bundle size after tree-shaking

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

	Before	After	Diff
WebGL	465.37 112.21	465.37 112.21	+0 B +0 B
WebGPU	614.51 166.09	614.81 166.16	+300 B +76 B
WebGPU Nodes	569.5 155.49	569.8 155.56	+300 B +78 B