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IDProjectCategoryView StatusDate SubmittedLast Update
0027962Open CASCADE[OCCT] OCCT:Visualizationpublic2016-10-13 18:362017-07-20 10:59
Assigned Todbp 
PlatformOSOS Version
Product Version 
Target Version[OCCT] 7.4.0*Fixed in Version 
Summary0027962: Visualization, path tracing - Performance comparison of the current version and OCCT 7.0.0 for AMD GPUs
DescriptionAs mentioned in note 0027607:0058599, the current version of OCCT path tracing algorithms shows approx. 1.5x worse performance with AMD GPUs than the version from OCCT 7.0.0.

Thus it is important to profile the two versions and identify the hot-spots in the current version of the algorithm, eventually proposing a solution for the performance slowdown problem.
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- Relationships
related to 0027607closedkgv Visualization - Implement adaptive screen space sampling in path tracing 

-  Notes
dbp (developer)
2016-10-14 14:15

Dear isk,

Could you please check the impact of the patch:
0027590: Visualization, Ray Tracing - port to quad BVH trees

It is necessary to compare performance BEFORE and AFTER integration to OCCT. I expect that we have intoroduced some NVIDIA speicific optimization in that patch.

- Issue History
Date Modified Username Field Change
2016-10-13 18:36 san New Issue
2016-10-13 18:36 san Assigned To => isk
2016-10-13 18:36 san Description Updated View Revisions
2016-10-13 18:36 san Relationship added related to 0027607
2016-10-14 14:15 dbp Note Added: 0058718
2016-11-22 10:46 kgv Assigned To isk => dbp
2016-11-22 10:46 kgv Target Version 7.1.0 => 7.2.0
2017-07-20 10:59 kgv Target Version 7.2.0 => 7.4.0*

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