View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0027787 | Open CASCADE | OCCT:Visualization | public | 2016-08-17 17:37 | 2020-05-27 11:13 |
| Reporter | Assigned To | bugmaster | |||
| Priority | normal | Severity | feature | ||
| Status | closed | Resolution | fixed | ||
| Target Version | 7.1.0 | Fixed in Version | 7.1.0 | ||
| Summary | 0027787: Visualization, TKOpenGl - Optimize rendering by additional check whether the object is fully clipped or not | ||||
| Description | Optimize rendering by additional check whether the object is fully clipped or not | ||||
| Steps To Reproduce | bugs/vis/bug27751_capping | ||||
| Tags | No tags attached. | ||||
| Test case number | bugs vis bug27751_capping | ||||
| parent of | 0031579 | closed | bugmaster | Open CASCADE | Visualization, OpenGl_CappingAlgo - clip graphics group by bounding box |
| related to | 0029768 | closed | Open CASCADE | Visualization, TKOpenGl - structure is entirely clipped by suppressed clipping | |
| child of | 0027748 | new | Open CASCADE | Visualization - clipping and capping improvements |
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Branch CR0027787 has been created by dbp. SHA-1: 50eb0ae9508f5a530b2bf1672f4e412411c53490 Detailed log of new commits: Author: dbp Date: Wed Aug 17 17:40:37 2016 +0300 0027787: Visualization -- Optimize rendering by additional check whether the object is fully clipped or not |
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Dear kgv, Please review the patch in branch CR27787. |
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Branch CR27787 has been created by dbp. SHA-1: 6308265cf386de85d1ace4600095738ea6c5cfa0 Detailed log of new commits: Author: dbp Date: Wed Aug 17 17:40:37 2016 +0300 0027787: Visualization -- Optimize rendering by additional check whether the object is fully clipped or not |
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Branch CR0027787 has been deleted by dbp. SHA-1: 50eb0ae9508f5a530b2bf1672f4e412411c53490 |
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Branch CR27787 has been updated by kgv. SHA-1: e87c5e44e85cb6e9d7c6044c23d43a842230015a Detailed log of new commits: Author: kgv Date: Thu Aug 18 19:28:08 2016 +0300 OpenGl_ShaderManager - define dedicated GLSL programs for one and two clipping planes Author: kgv Date: Thu Aug 18 19:26:52 2016 +0300 fix disabling and enabling planes |
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Branch CR27787_1 has been created by kgv. SHA-1: d89ab8f87a9d874828188892daa56a974e83d97b Detailed log of new commits: Author: dbp Date: Thu Aug 18 19:41:05 2016 +0300 0027787: Visualization, TKOpenGl - Optimize rendering by additional check whether the object is fully clipped or not OpenGl_Structure::Render() now checks if structure is entirely clipped to skip rendering at all, or entirely NOT clipped to disable clipping / capping plane. OpenGl_ShaderManager now defines dedicated GLSL programs for one and two clipping planes to optimize rendering on slow hardware. |
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Clipping on CPU side dramatically improves rendering performance of global clipping / capping plane applied on a complex scene: - Skipping rendering of entire object is essential, when considerable part is scene is clipped (like in case of frustum culling). - Disabling capping for objects far behind the plane dramatically reduces CPU (multiple rendering passes) and GPU usage. This might improve performance in 10+ times depending on scene structure and complexity. On test model FPS increased from 10 to 60, being highly CPU-limited in first case. Using truncated shading program in case of single clipping plane (avoid for-loop in a fragment shader) improves rendering performance on slow hardware. On PowerVR SGX 544MP patch increases FPS by two times (at best) in case of single clipping / capping plane. On test model FPS increased from 14.9 to 30 for clipping (7.9 to 18.5 for capping), with 53 without clipping. |
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Patch is ready for testing in branch CR27787_1. |
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Branch CR27787_1 has been updated forcibly by mkv. SHA-1: 1e85173588d5bc634c5cdfc95a168e5f22ee5f62 |
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Dear BugMaster, Branch CR27787_1 was rebased on current master of occt git-repository. SHA-1: 1e85173588d5bc634c5cdfc95a168e5f22ee5f62 |
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Dear BugMaster, Branch CR27787_1 from occt git-repository (and master from products git-repository) was compiled on Linux, MacOS and Windows platforms and tested on Release mode. SHA-1: 1e85173588d5bc634c5cdfc95a168e5f22ee5f62 Number of compiler warnings: occt component : Linux: 0 (0 on master) Windows: 0 (0 on master) MacOS : 0 (0 on master) products component : Linux: 64 (64 on master) Windows: 0 (0 on master) MacOS : 1152 Regressions/Differences/Improvements: No regressions/differences Testing cases: http://occt-tests/CR27787_1-master-OCCT/Debian70-64/bugs/vis/bug27751_capping.html http://occt-tests/CR27787_1-master-OCCT/Windows-64-VC10/bugs/vis/bug27751_capping.html bugs vis bug27751_capping: OK Testing on Linux: occt component : Total MEMORY difference: 90213577 / 89492510 [+0.81%] Total CPU difference: 19468.28999999995 / 19495.580000000107 [-0.14%] products component : Total MEMORY difference: 30074211 / 30045379 [+0.10%] Total CPU difference: 5083.799999999969 / 5077.5199999999795 [+0.12%] Testing on Windows: occt component : Total MEMORY difference: 57178209 / 57161393 [+0.03%] Total CPU difference: 18246.610164698755 / 18084.68112669885 [+0.90%] products component : Total MEMORY difference: 21298922 / 21261546 [+0.18%] Total CPU difference: 4887.46452969995 / 4849.696687599947 [+0.78%] There are no differences in images found by testdiff. |
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Dear BugMaster, Branch CR27787_1 is TESTED. |
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Branch CR27787_1 has been deleted by inv. SHA-1: 1e85173588d5bc634c5cdfc95a168e5f22ee5f62 |
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Branch CR27787 has been deleted by inv. SHA-1: e87c5e44e85cb6e9d7c6044c23d43a842230015a |
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occt: master 1a7ece8f 2016-08-18 16:41:05
Committer: bugmaster Details Diff |
0027787: Visualization, TKOpenGl - Optimize rendering by additional check whether the object is fully clipped or not OpenGl_Structure::Render() now checks if structure is entirely clipped to skip rendering at all, or entirely NOT clipped to disable clipping / capping plane. OpenGl_ShaderManager now defines dedicated GLSL programs for one and two clipping planes to optimize rendering on slow hardware. |
Affected Issues 0027787 |
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| mod - src/NCollection/NCollection_Vec4.hxx | Diff File | ||
| mod - src/OpenGl/OpenGl_Clipping.cxx | Diff File | ||
| mod - src/OpenGl/OpenGl_Clipping.hxx | Diff File | ||
| mod - src/OpenGl/OpenGl_SetOfShaderPrograms.hxx | Diff File | ||
| mod - src/OpenGl/OpenGl_ShaderManager.cxx | Diff File | ||
| mod - src/OpenGl/OpenGl_ShaderManager.hxx | Diff File | ||
| mod - src/OpenGl/OpenGl_Structure.cxx | Diff File | ||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2016-08-17 17:37 |
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New Issue | |
| 2016-08-17 17:37 |
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Assigned To | => kgv |
| 2016-08-17 17:37 |
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Assigned To | kgv => dbp |
| 2016-08-17 17:40 | kgv | Summary | Visualization -- Optimize rendering by additional check whether the object is fully clipped or not => Visualization, TKOpenGl - Optimize rendering by additional check whether the object is fully clipped or not |
| 2016-08-17 17:40 | kgv | Relationship added | child of 0027748 |
| 2016-08-17 17:41 | git | Note Added: 0056801 | |
| 2016-08-17 17:41 |
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Note Added: 0056802 | |
| 2016-08-17 17:41 |
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Assigned To | dbp => kgv |
| 2016-08-17 17:41 |
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Status | new => resolved |
| 2016-08-17 17:41 |
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Steps to Reproduce Updated | |
| 2016-08-17 17:57 | kgv | Assigned To | kgv => dbp |
| 2016-08-17 17:57 | kgv | Severity | minor => feature |
| 2016-08-17 17:57 | kgv | Status | resolved => assigned |
| 2016-08-17 17:57 | kgv | Product Version | Unscheduled => |
| 2016-08-17 18:07 | git | Note Added: 0056805 | |
| 2016-08-17 18:07 | git | Note Added: 0056806 | |
| 2016-08-17 18:07 |
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Note Edited: 0056802 | |
| 2016-08-18 19:36 | git | Note Added: 0056840 | |
| 2016-08-18 19:41 | git | Note Added: 0056841 | |
| 2016-08-18 19:55 | kgv | Note Added: 0056842 | |
| 2016-08-18 19:55 | kgv | Note Added: 0056843 | |
| 2016-08-18 19:55 | kgv | Assigned To | dbp => bugmaster |
| 2016-08-18 19:55 | kgv | Status | assigned => resolved |
| 2016-08-18 19:55 | kgv | Status | resolved => reviewed |
| 2016-08-18 19:59 | kgv | Note Edited: 0056842 | |
| 2016-08-18 19:59 | kgv | Note Edited: 0056842 | |
| 2016-08-18 19:59 | kgv | Note Edited: 0056842 | |
| 2016-08-18 20:01 | kgv | Steps to Reproduce Updated | |
| 2016-08-19 09:23 |
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Assigned To | bugmaster => mkv |
| 2016-08-19 11:15 | git | Note Added: 0056855 | |
| 2016-08-22 14:58 |
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Note Added: 0056923 | |
| 2016-08-22 14:59 |
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Note Added: 0056924 | |
| 2016-08-22 14:59 |
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Note Added: 0056925 | |
| 2016-08-22 14:59 |
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Assigned To | mkv => bugmaster |
| 2016-08-22 14:59 |
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Status | reviewed => tested |
| 2016-08-22 14:59 |
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Test case number | => bugs vis bug27751_capping |
| 2016-08-26 11:53 | bugmaster | Changeset attached | => occt master 1a7ece8f |
| 2016-08-26 11:53 | bugmaster | Status | tested => verified |
| 2016-08-26 11:53 | bugmaster | Resolution | open => fixed |
| 2016-08-26 16:22 | git | Note Added: 0057129 | |
| 2016-08-26 16:22 | git | Note Added: 0057131 | |
| 2016-12-09 16:31 |
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Status | verified => closed |
| 2016-12-09 16:38 |
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Fixed in Version | => 7.1.0 |
| 2018-05-14 19:28 | kgv | Relationship added | related to 0029768 |
| 2020-05-27 11:13 | kgv | Relationship added | parent of 0031579 |
