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Archived issue #0030729

Visualization - TKOpenGl reports OpenGL 4.5 loading functions error on Intel drivers

CommunityOCCT:Visualizationclosed8 public notes

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Description

TKOpenGl | Type: Error | ID: 0 | Severity: High | Message:
  Error! OpenGL context reports version 4.5 but does not export required functions for 4.5



OpenGL info:
  GLvendor: Intel
  GLdevice: Intel(R) HD Graphics 630
  GLversion: 4.5.0 - Build 23.20.16.4973
  GLSLversion: 4.50 - Build 23.20.16.4973
  Max texture size: 16384
  Max FBO dump size: 4096x16384
  Max combined texture units: 192
  Max MSAA samples: 16
  Viewport: 409x409
  ResolutionRatio: 1

TKOpenGl | Type: Error | ID: 0 | Severity: High | Message:
  Error! OpenGL context reports version 4.5 but does not export required functions (glGetnCompressedTexImage) for 4.5
Please report this issue to OpenGL driver vendor 'intel'


https://software.intel.com/en-us/forums/graphics-driver-bug-reporting/topic/810464

Public activity

8 archived notes

Participants are labeled by their role within this record.

01Commenter 3
This is not an Open CASCADE bug - this is an Intel driver bug.
02Author
That's OK. You may close this.
03Commenter 4
Branch [archived branch] has been created by Commenter 3.

[revision removed]


Detailed log of new commits:

Author: Commenter 3
Date: Sun May 26 12:46:32 2019 +0300

    0030729: Visualization - TKOpenGl reports OpenGL 4.5 loading functions error on Intel drivers
    
    Make reported error more verbose.
04Commenter 4
Branch [archived branch] has been updated forcibly by Commenter 3.

[revision removed]
05Commenter 3
Patch improving message (including not found function name) is ready for review.
06Commenter 6
Branch CR30729 reviewed without remarks.
07Commenter 1
Combination -
OCCT branch : [archived branch]
master SHA - [revision removed]
[revision removed]
Products branch : [archived branch] SHA - [revision removed]
was compiled on Linux, MacOS and Windows platforms and tested in optimize mode.

Number of compiler warnings:
No new/fixed warnings

Regressions/Differences/Improvements:
No regressions/differences

CPU differences:
Debian80-64:
OCCT
Total CPU difference: 16292.71000000007 / 16292.829999999974 [-0.00%]
Products
Total CPU difference: 10487.820000000047 / 10481.610000000046 [+0.06%]
Windows-64-VC14:
OCCT
Total CPU difference: 17699.53125 / 17706.828125 [-0.04%]
Products
Total CPU difference: 12066.078125 / 12047.171875 [+0.16%]


Image differences :
No differences that require special attention

Memory differences :
No differences that require special attention
08Commenter 4
Branch [archived branch] has been deleted by Participant.

[revision removed]

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