diff options
| author | Samuel Iglesias Gonsálvez <siglesias@igalia.com> | 2017-09-15 10:05:03 +0200 |
|---|---|---|
| committer | Juan A. Suarez Romero <jasuarez@igalia.com> | 2017-09-28 13:54:56 +0000 |
| commit | e16c31f3fe7ec389a34330e9554386d59355e028 (patch) | |
| tree | b25f1caac9efedd774c04557a107b8577308229e | |
| parent | dbf33a12e143a6a66149e7f90cc1fa22f1b14cf8 (diff) | |
anv: fix viewport transformation for z component
In Vulkan, for 'z' (depth) component, the scale and translate values
for the viewport transformation are:
pz = maxDepth - minDepth
oz = minDepth
zf = pz × zd + oz
Being zd, the third component in vertex's normalized device coordinates.
Fixes: dEQP-VK.draw.inverted_depth_ranges.*
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit d2cd9deeb8db5941e99b149fa637f711198ca741)
| -rw-r--r-- | src/intel/vulkan/gen8_cmd_buffer.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/intel/vulkan/gen8_cmd_buffer.c b/src/intel/vulkan/gen8_cmd_buffer.c index a209d701619..fb420d85168 100644 --- a/src/intel/vulkan/gen8_cmd_buffer.c +++ b/src/intel/vulkan/gen8_cmd_buffer.c @@ -49,10 +49,10 @@ gen8_cmd_buffer_emit_viewport(struct anv_cmd_buffer *cmd_buffer) struct GENX(SF_CLIP_VIEWPORT) sf_clip_viewport = { .ViewportMatrixElementm00 = vp->width / 2, .ViewportMatrixElementm11 = vp->height / 2, - .ViewportMatrixElementm22 = 1.0, + .ViewportMatrixElementm22 = vp->maxDepth - vp->minDepth, .ViewportMatrixElementm30 = vp->x + vp->width / 2, .ViewportMatrixElementm31 = vp->y + vp->height / 2, - .ViewportMatrixElementm32 = 0.0, + .ViewportMatrixElementm32 = vp->minDepth, .XMinClipGuardband = -1.0f, .XMaxClipGuardband = 1.0f, .YMinClipGuardband = -1.0f, |