Non-Regression: Unable to Launch experiment for Biomes. |
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Issue descriptionChrome Version:64.0.3256.0/10093.0.0 dev channel Peppy,Paine,Kip OS:Chrome OS What steps will reproduce the problem? (1)Open https://experiments.withgoogle.com/chrome?tag=WebGL (2)click on 'Launch Experiment' for Biomes and Observe (please refer video) Actual: Unable to launch experiment for Biomes. Expected:Should be able to launch experiment This is a Non-Regression issue seen from M-55. Note: Issue is not seen in Windows,Linux OS
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Nov 6 2017
Please find the attached documents about the contents of about:gpu as well as some error messages from the JavaScript console.
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Nov 10 2017
The failures are on an ARM ChromeOS device. It looks like WebGL's back buffer doesn't get allocated properly. I don't have one of these devices to test on -- marcheu@, can I come over to work with someone on your team to debug this locally? Is more WebGL content than just this broken?
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Nov 10 2017
about:gpu and log excerpt: GL_VENDOR ARM GL_RENDERER Mali-T604 GL_VERSION OpenGL ES 3.1 v1.r12p0-04rel0.f59038529369929fa5eb884aed147486 [6822:6822:1106/104405.792810:ERROR:gl_image_native_pixmap.cc(251)] : Failed to flush rendering [6822:6822:1106/104405.803680:ERROR:gl_image_native_pixmap.cc(251)] : Failed to flush rendering [6822:6822:1106/104553.795342:ERROR:gles2_cmd_decoder.cc(4533)] : [.Offscreen-For-WebGL-0xb926c800]GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glClear: framebuffer incomplete [6822:6822:1106/104553.977122:ERROR:gles2_cmd_decoder.cc(9921)] : [.Offscreen-For-WebGL-0xb926c800]RENDER WARNING: texture bound to texture unit 2 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. [6822:6822:1106/104554.042722:ERROR:gles2_cmd_decoder.cc(4533)] : [.Offscreen-For-WebGL-0xb926c800]GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glClear: framebuffer incomplete [6822:6822:1106/104554.094409:ERROR:gles2_cmd_decoder.cc(4533)] : [.Offscreen-For-WebGL-0xb926c800]GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glDrawElements: framebuffer incomplete
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Nov 11 2017
Peppy and Kip aren't ARM devices, they're old intel ones. Mali T604 is also old. I suspect that these are all old GPUs which don't have the required features. I'll check.
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Nov 11 2017
yeah we don't support the GL_EXT_shader_texture_lod extension that this requires. Not much I can do... |
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Comment 1 by kbr@chromium.org
, Nov 3 2017