| Priority | medium |
|---|---|
| Bug ID | 83810 |
| Assignee | dri-devel@lists.freedesktop.org |
| Summary | Blender Weight paint mode doesn't work with enabled VBOs. |
| Severity | normal |
| Classification | Unclassified |
| OS | Linux (All) |
| Reporter | sunweb@hotmail.ru |
| Hardware | x86-64 (AMD64) |
| Status | NEW |
| Version | 10.1 |
| Component | Drivers/Gallium/r600 |
| Product | Mesa |
HD 5770, OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.1.3 Download and unpack Blender from here http://www.blender.org/download/ or install from your distrution repository. Exact steps to reproduce the error: 1) Open Blender and go to File -> User Preferences -> System OR press Ctrl+Alt+U and enable VBOs 2) Go to Edit mode(press Tab) on a default cube and for clear look for both problems(unable to paint and slowdowns) subdivide it atleast a few times(press W -> F6 -> Number of cuts 50*). 3) Go to Weight Paint mode(press Tab -> Ctrl+Tab) and make a stroke, you won't see anything painting and experience slowdowns. 4) Disable VBOs and repeat 2 and 3 steps and everything works and really fast then switch on VBOs again and your paint will disappear but turning off VBOs again will show the one you draw before. * depending on your GPU the number might be higher. For example on my GPU 20 cuts on a cube won't show any performance decrease with VBOs on thus i am using 50 for more clear look at performance problem. As described by many users VBOs should make everything faster not slower. And i've checked proprietary drivers VBOs work there but i have different troubles with them thus i am using the OSS one that has a very few non crucial broken features.
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