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2007-06-28 Matthew Allum <mallum@openedhand.com>

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* clutter/cogl/gl/cogl.c: (cogl_setup_viewport):
        Improve fixed z_camera value for defualt perspective.
        Appears pixel perfect on ATI and Intel at least
This commit is contained in:
Matthew Allum 2007-06-28 09:38:42 +00:00
parent 3cdc195408
commit d7eda69b48
1 changed files with 6 additions and 4 deletions
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8
gl/cogl.c
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@ -515,12 +515,14 @@ cogl_setup_viewport (guint width,
* actor being offscreen. Perhaps more significantly, it also causes * actor being offscreen. Perhaps more significantly, it also causes
* hinting artifacts when rendering text. * hinting artifacts when rendering text.
* *
* So for the default 60 deg angle we worked out that the value of 0.8699 * So for the default 60 deg angle we worked out that the value of 0.869
* is giving correct stretch and no noticeable artifacts on text. * is giving correct stretch and no noticeable artifacts on text. Seems
* good on all drivers too.
*/ */
#define DEFAULT_Z_CAMERA 0.8699f #define DEFAULT_Z_CAMERA 0.869f
z_camera = DEFAULT_Z_CAMERA; z_camera = DEFAULT_Z_CAMERA;
if (fovy != CFX_60) if (fovy != CFX_60)
{ {
ClutterFixed fovy_rad = CFX_MUL (fovy, CFX_PI) / 180; ClutterFixed fovy_rad = CFX_MUL (fovy, CFX_PI) / 180;