diff options
| author | Samuel Iglesias Gonsálvez <[email protected]> | 2017-09-15 10:05:03 +0200 |
|---|---|---|
| committer | Samuel Iglesias Gonsálvez <[email protected]> | 2017-09-25 06:39:40 +0200 |
| commit | d2cd9deeb8db5941e99b149fa637f711198ca741 (patch) | |
| tree | 4153daab3e9f4abdbddc2d3a182cd9ea5bcb9608 | |
| parent | 3e544932658d87beb661a3e762621264733171df (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 <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Cc: [email protected]
| -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 064b8e930e9..7bea231ea76 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, |