OpenGL & Vulkan

[timbeaudet]

I am developing a game and have found several reports of a feature breaking in the optional drivers (19.7.4, 19.9.2, perhaps others)  but working as expected in the stable drivers 19.5.2. It has to do with cascaded shadowmaps using OpenGL 3.2 Core profile.

atioglxx.dll!69554eb5() Unknown
[Frames below may be incorrect and/or missing, no symbols loaded for atioglxx.dll]
atioglxx.dll!69b2632f() Unknown
atioglxx.dll!69b26b7a() Unknown
atioglxx.dll!69c4ae65() Unknown
atioglxx.dll!69c3ef19() Unknown
atioglxx.dll!69c63dde() Unknown
atioglxx.dll!68be7d3b() Unknown
atioglxx.dll!68e50a92() Unknown
> turbo_boom.exe!iceImplementation::MeshImplementation::InstancedRender(int instanceCount) Line 1099 C++

Line 1099 of my code is calling glDrawElementsInstanced, with valid info - which works as expected when shadows are turned off in engine so I suspect not directly caused by glDrawElementsInstanced.

[dipak]

Hi timbeaudet‌,

Welcome to AMD DevGurus community.

I've whitelisted you and moved this post to our OpenGL forum.

Thanks.

[dorisyan]

Hi timbeaudet‌, Thanks for your report, Could you please provide a minimal code that can reproduce this problem? Thanks very much!

[chaitanya]

Hi @timbeaudet, 

1. Can you please provide a sample code to reproduce the issue.
2. What is your system config:
 Graphic Card: ?
CPU: ?
OS: ?

dipak‌, ty for bringing this to my notice.

[timbeaudet]

I have already reverted back to stable drivers because it worked there; but I will try finding some time to get a reasonably minimal sample.

Graphic Card: R7 240

CPU: Intel i7 E6600

OS: Windows 10 64bit