263393 2023-10-19 13:04:14 -0700 [WGSL] frag_depth on return value does not generate depth(any) attribution 2023-10-30 09:42:21 -0700 1 1 1 Unclassified WebKit WebGPU WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 mwyrzykowski tzagallo webkit-bug-importer oldest_to_newest 1986222 0 mwyrzykowski 2023-10-19 13:04:14 -0700 Given the following shader: @group(0) @binding(0) var inputTexture: texture_2d<f32>; @fragment fn main(@builtin(position) fragcoord : vec4<f32>) -> @builtin(frag_depth) f32 { var depthValue : vec4<f32> = textureLoad(inputTexture, vec2<i32>(fragcoord.xy), 0); return depthValue.x; } @builtin(frag_depth) appears to be ignored when the metal code is generated: [[fragment]] float function0(vec<float, 4> parameter0 [[position]], constant __ArgumentBufferT_0& __ArgumentBuffer_0 [[buffer(0)]]) { texture2d<float, access::sample> global0 = __ArgumentBuffer_0.global0; vec<float, 4> local0 = global0.read(uint2(vec<int, 2>(parameter0.xy)), 0); return local0.x; } 1986223 1 webkit-bug-importer 2023-10-19 13:04:37 -0700 <rdar://problem/117221582> 1987971 2 tzagallo 2023-10-27 06:05:20 -0700 Pull request: https://github.com/WebKit/WebKit/pull/19635 1988535 3 ews-feeder 2023-10-30 09:42:20 -0700 Committed 269950@main (fbd53e5fa81a): <https://commits.webkit.org/269950@main> Reviewed commits have been landed. Closing PR #19635 and removing active labels.