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ValhallaTeam / angleproject

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ShaderToy: Sparks - WebGL crash only a certain range of iterations #441

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
1. Go to shadertoy: https://www.shadertoy.com/view/4ss3DM
2. Set SPARKS define to any value between about 80-206
3. WebGL crashes

What is the expected output? What do you see instead?
The shader should not crash WebGL as more than 206 iterations compiles fine

What version of the product are you using? On what operating system?
WebGL, Chrome/27.0.1453.116, ANGLE r2042, Windows 7

Please provide any additional information below.

Original issue reported on code.google.com by divan.bu...@gmail.com on 26 Jun 2013 at 5:38

GoogleCodeExporter commented 9 years ago 
Brandon, Mo: could one of you triage this on a Windows machine? It works fine 
on a Mac Retina Display.

Original comment by kbr@chromium.org on 27 Jun 2013 at 10:08

GoogleCodeExporter commented 9 years ago 
Yes, I can reproduce this with Chrome Canary (30.0.1549.1) with AMD Radeon HD 
4800.

However, the range it times out linking is slightly different.  At 206 I am ok, 
but 200 it times out

Original comment by zmo@chromium.org on 27 Jun 2013 at 7:27

GoogleCodeExporter commented 9 years ago 
I'll have a look, as this is very similar to crbug.com/113009

Original comment by z...@google.com on 27 Jun 2013 at 7:29

GoogleCodeExporter commented 9 years ago 
divan.burger: can you provide the about:gpu content on the machine you 
encounter this?

Original comment by z...@google.com on 27 Jun 2013 at 7:32

GoogleCodeExporter commented 9 years ago 
Per advised by geofflang, I tested against D11, and this issue no longer 
manifest.  Since chrome is moving on to D11 soon, will mark this as WontFix.

Original comment by z...@google.com on 27 Jun 2013 at 9:21