[SOLVED] glClipControl not working

[Priyank.Jain2]

Hi,

 

My machine has OpenGL version 4.4 and with that I am unable to launch my application (It crashes while setting glClipControl), then I realized that there is a check in GLRenderer.cpp 

has_arb_clip_control = has_extension("GL_ARB_clip_control",version >= 44);

but as per OpenGL manual glClipControl is implemented in 4.5

 

https://www.opengl.org/sdk/docs/man/html/glClipControl.xhtml

 

Am I missing something or do I need to change the source?

[silent]

Hi Priyank,

 

What GPU and GPU driver are you currently using? GL_ARB_clip_control extension is optional and should not cause any crashes. Could you please attach engine log file (log.html) to this thread?

Thanks!

[Priyank.Jain2]

I am using "NVIDIA Quadro K1100M" with driver version "9.18.0013.4066"

 

How can I opt out for GL_ARB_clip_control extension?

 

Log:

13:30:38 
13:30:38 ---- Plugins ----
13:30:38 Loading "Interface_x64d.dll"...
13:30:38 
13:30:38 ---- Application ----
13:30:39 Loading "opengl32.dll"...
13:30:39 Set 500x300 windowed video mode
13:30:39 
13:30:39 ---- Engine ----
13:30:39 UNIGINE Engine
13:30:39 Version: 2.3.1 Nov 14 2016
13:30:39 Binary: Windows 64-bit Visual C++ 1900 Debug
13:30:39 Engine features: OpenGL OpenGL4.4 Direct3D11 OpenAL XPad360 Joystick Editor HalfTexCoords
13:30:39 App path: <folder_path>/build/Debug/config/rtvis/
13:30:39 Data path: <folder_path>/build/Debug/data/common/rtvis_client/data/
13:30:39 Save path: <folder_path>/build/Debug/config/rtvis/
13:30:39
13:30:39 ---- System ----
13:30:39 OS: Windows 7 SP1 64-bit
13:30:39 CPU: Intel(R) Core(TM) i7-4810MQ CPU @ 2.80GHz 2793MHz MMX SSE SSE2 SSE3 SSSE3 SSE41 SSE42 AVX AVX2 HTT x4
13:30:39 GPU: NVIDIA Quadro K1100M 9.18.13.4066 x1
13:30:39 System memory: 16323 MB
13:30:39 Video memory: 2048 MB
13:30:39 Sync threads: 3
13:30:39 Async threads: 4
13:30:39
13:30:39 ---- MathLib ----
13:30:39 Set SSE2 simd processor
13:30:39
13:30:39 ---- Sound ----
13:30:39 NULL
13:30:39
13:30:39 ---- Render ----
13:30:39 Renderer: NVidia 2048MB
13:30:39 OpenGL vendor: NVIDIA Corporation
13:30:39 OpenGL renderer: Quadro K1100M/PCIe/SSE2
13:30:39 OpenGL version: 4.4.0
13:30:39 OpenGL flags: Core Profile
13:30:39 Found required GL_ARB_gpu_shader5
13:30:39 Found required GL_ARB_geometry_shader4
13:30:39 Found required GL_ARB_shader_bit_encoding
13:30:39 Found required GL_ARB_tessellation_shader
13:30:39 Found required GL_ARB_texture_storage
13:30:39 Found required GL_ARB_buffer_storage
13:30:39 Found optional GL_ARB_compute_shader
13:30:39 Found optional GL_ARB_shader_image_load_store
13:30:39 Found optional GL_ARB_shader_storage_buffer_object
13:30:39 Found optional GL_ARB_clip_control

[silent]

Hi Priyank,

 

Could you please try to upgrade GPU driver to the latest one from the nvidia website (375.86)? According to the release notes, there is OpenGL 4.5 support available. According to the log file, GL_ARB_clip_control extension is loaded correctly as well (it's a part of OpenGL 4.4 Compatibility profile, and part of 4.5 Core profile), so the crash probably is not related with that.

 

Thanks!

[Priyank.Jain2]

Thanks, with driver update It started working. But is there any way we can check Compatibility profile as well along with OpenGL version? That ways it will be easier for us to roll out the updated product to customers saying "machine must have need OpenGL version 4.4+"

[silent]

Hi Priyank,

 

Right now minspec is exactly OpenGL 4.4. Your problem was probably related to some old driver bug :)