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author | Roland Scheidegger <sroland@vmware.com> | 2014-01-21 17:47:08 +0100 |
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committer | Roland Scheidegger <sroland@vmware.com> | 2014-01-21 17:49:02 +0100 |
commit | e23e4f67bed51a8dfd182eae6c7e8e23a7d2cb0e (patch) | |
tree | 0d29ffd683c4e81212bca8d643bf17c873a4da1d /src/mesa/drivers/dri/i965/brw_program.c | |
parent | ad04e396faaddce926ee1146f0da12b30aee7b87 (diff) | |
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draw: fix points with negative w coords for d3d style point clipping
Even with depth clipping disabled, vertices which have negative w coords
must be discarded. And since we don't have a proper guardband implementation
yet (relying on driver to handle all values except infs/nans in rasterization
for such points) we need to kill them off manually (as they can end up with
coordinates inside viewport otherwise).
v2: use 0.0f instead of 0 (spotted by Brian).
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_program.c')
0 files changed, 0 insertions, 0 deletions