View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0031694 | Open CASCADE | OCCT:Visualization | public | 2020-07-30 11:26 | 2023-08-01 15:09 |
| Reporter | kgv | Assigned To | |||
| Priority | normal | Severity | feature | ||
| Status | new | Resolution | open | ||
| Target Version | Unscheduled | ||||
| Summary | 0031694: Visualization, TKOpenGl - filter invisible peripheral areas while rendering in VR | ||||
| Description | There are common optimization tricks for VR rendering: - Lenses make distance peripheral areas inaccessible to eyes, while viewer still renders them. Applying stencil test using pre-defined mask would give some performance boost (in case of slow fragment shader). [Upto 17% fill rate reduction] - Lenses make close peripheral areas highly distorted to eyes compared to the area in a center. Rendering such areas with lower resolution can give a small boost, but very tricky. - Rendering stereoscopic pair requires doubles render passes. It is theoretically possible using multi-view rendering techniques, but these over-complicate rendering and double framebuffer memory requirements (which are considerable for high-end VR headsets). The most reasonable optimization is re-using command buffers to reduce CPU occupation. References: http://media.steampowered.com/apps/valve/2016/Alex_Vlachos_Advanced_VR_Rendering_Performance_GDC2016.pdf | ||||
| Tags | No tags attached. | ||||
| Test case number | |||||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2020-07-30 11:26 | kgv | New Issue | |
| 2020-07-30 11:26 | kgv | Assigned To | => kgv |
| 2020-07-30 11:28 | kgv | File Added: vr_lenses.png | |
| 2020-07-30 11:29 | kgv | File Added: vr_lenses_stencil.png | |
| 2020-07-30 11:31 | kgv | Description Updated | |
| 2020-08-28 13:57 | kgv | Target Version | 7.5.0 => 7.6.0 |
| 2021-08-24 14:13 | kgv | Target Version | 7.6.0 => 7.7.0 |
| 2022-08-17 11:59 | kgv | Target Version | 7.7.0 => 7.8.0 |
| 2022-10-19 15:49 |
|
Assigned To | kgv => vpozdyayev |
| 2023-08-01 15:09 | dpasukhi | Target Version | 7.8.0 => Unscheduled |
