Created attachment 140319 [details] glxinfo https://www.khronos.org/registry/webgl/sdk/tests/webgl-conformance-tests.html Using the WebGL 1.0.4 conformance test on my Sandybridge laptop. conformance/extensions/oes-texture-half-float.html (Passed: 107/121 Failed: 14/121 in 683.0 ms) failed: getError expected: INVALID_OPERATION. Was INVALID_FRAMEBUFFER_OPERATION : IMPLEMENTATION_COLOR_READ_FORMAT should fail for incomplete framebuffers. failed: getError expected: INVALID_OPERATION. Was INVALID_FRAMEBUFFER_OPERATION : IMPLEMENTATION_COLOR_READ_TYPE should fail for incomplete framebuffers. failed: getError expected: INVALID_OPERATION. Was INVALID_FRAMEBUFFER_OPERATION : IMPLEMENTATION_COLOR_READ_FORMAT should fail for incomplete framebuffers. failed: getError expected: INVALID_OPERATION. Was INVALID_FRAMEBUFFER_OPERATION : IMPLEMENTATION_COLOR_READ_TYPE should fail for incomplete framebuffers. failed: getError expected: INVALID_OPERATION. Was INVALID_FRAMEBUFFER_OPERATION : IMPLEMENTATION_COLOR_READ_FORMAT should fail for incomplete framebuffers. failed: getError expected: INVALID_OPERATION. Was INVALID_FRAMEBUFFER_OPERATION : IMPLEMENTATION_COLOR_READ_TYPE should fail for incomplete framebuffers. failed: getError expected: NO_ERROR. Was INVALID_ENUM : readPixels should return NO_ERROR when reading FLOAT data. failed: Green channel should be 0.25 for FLOAT readPixels. Received: 0 failed: Blue channel should be 0.5 for FLOAT readPixels. Received: 0 failed: Alpha channel should be 0.75 for FLOAT readPixels. Received: 0 failed: getError expected: NO_ERROR. Was INVALID_ENUM : readPixels should return NO_ERROR when reading FLOAT data. failed: Green channel should be 0.25 for FLOAT readPixels. Received: 0 failed: Blue channel should be 0.5 for FLOAT readPixels. Received: 0 failed: Alpha channel should be 1 for FLOAT readPixels. Received: 0 The other subtests are OK. I'm using Mesa 1.8.1.1 on Firefox 60.0.2 Manjaro Linux (i've attached a complete glxinfo).
These tests pass fine on chrome, this is likely bug in Firefox.
Agree with Tapani. I checked latests released stable mesa version on ubuntu, ubuntu 16.04 firefox 60.0.2 (latest) chromium (66.0.3359.181) mesa-version for FF (18.1.3 stable) for Chromium (18.2.0 git-c7726fbfa5) Results: failed Mozzila (SNB, SKL) passed Chromium (SNB, SKL) _____ I would say that issue might be in FF browser.
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