Bug 264140

Summary:

[WGSL] error: use of undeclared identifier 'textureSampleCompareLevel' opening https://spookyball.com/

Product:

WebKit

Reporter:

Mike Wyrzykowski <mwyrzykowski>

Component:

WebGPU

Assignee:

Tadeu Zagallo <tzagallo>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

webkit-bug-importer

Priority:

Keywords:

InRadar

Version:

Other

Hardware:

Unspecified

OS:

Unspecified

Attachments:

Description	Flags
WGSL shader source	none

Description Mike Wyrzykowski 2023-11-02 23:13:26 PDT

Created attachment 468465 [details]
WGSL shader source

Open https://spookyball.com/ and notice the MSL compilation error printed:

program_source:377:28: error: use of undeclared identifier 'textureSampleCompareLevel'
        local8 = (local8 + textureSampleCompareLevel(global5, global6, clamp((local5 + (global8[local9] * local6)), local7.xy, local7.zw), (local4.z - 0.003)));

it appears to come from this line in the attached wgsl shader:

      visibility = visibility + textureSampleCompareLevel(
        shadowTexture, shadowSampler,
        clamp(viewportPos + shadowSampleOffsets[i] * texelSize, clampRect.xy, clampRect.zw),
        shadowPos.z - 0.003);

Comment 1 Radar WebKit Bug Importer 2023-11-02 23:13:41 PDT

<rdar://problem/117891882>

Comment 2 Tadeu Zagallo 2023-11-03 07:58:36 PDT

Pull request: https://github.com/WebKit/WebKit/pull/19951

Comment 3 EWS 2023-11-06 01:33:33 PST

Committed 270257@main (144459dcdc40): <https://commits.webkit.org/270257@main>

Reviewed commits have been landed. Closing PR #19951 and removing active labels.