https://bugs.freedesktop.org/show_bug.cgi?id=36065
Summary: r600g regression : vertex buffer alignement Product: DRI Version: XOrg CVS Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/Radeon AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: pelloux@gmail.com
I have a simple app using vbo to render models. The VBO layout is : position (3 float), normal (3 float), color (3 char)
This app was running perfectly until I updated libdrm/mesa to git version. Now the app still does not have any GL error set (checked with glGetError()), but its rendering is completely wrong.
git-bisect pointed me to this commit : 0ed5bf668db24fb56b5b359399099c89531e2a0a "r600g: Request DWORD aligned vertex buffers."
OS : Debian unstable (amd64) Radeon HD 4850