diff options
| author | Benjamin Otte <otte@redhat.com> | 2023-05-16 17:18:19 +0200 |
|---|---|---|
| committer | Benjamin Otte <otte@redhat.com> | 2023-05-16 18:53:27 +0200 |
| commit | 2b0ad09423ce8b3e5885a8a396e37949f66e702d (patch) | |
| tree | 25b7af6f24450e332b53bd4529acb23541e159f6 | |
| parent | f5955feea1cd0d5ebe457b8685ac27e03a02bf97 (diff) | |
| download | gtk+-2b0ad09423ce8b3e5885a8a396e37949f66e702d.tar.gz | |
vulkan: Make projection matrix match GL
Vulkan has a different initial coordinate system to GL.
GL:
(-1, 1, -1) +------+.
|`. | `.
| `·--|---·
| : | :
+------+. :
`. : `.:
`·------· (1, -1, 1)
Vulkan:
(-1, -1, 0) +------+.
|`. | `.
| `·--|---·
| : | :
+------+. :
`. : `.:
`·------· (1, 1, 1)
so adjust the near and far plane we pass to
graphene_matrix_init_ortho() to make it end up with the same
projection as the GL renderer.
| -rw-r--r-- | gsk/vulkan/gskvulkanrenderpass.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gsk/vulkan/gskvulkanrenderpass.c b/gsk/vulkan/gskvulkanrenderpass.c index c23aa0ba7b..f364b7f4c1 100644 --- a/gsk/vulkan/gskvulkanrenderpass.c +++ b/gsk/vulkan/gskvulkanrenderpass.c @@ -157,7 +157,7 @@ gsk_vulkan_render_pass_new (GdkVulkanContext *context, graphene_matrix_init_ortho (&self->p, viewport->origin.x, viewport->origin.x + viewport->size.width, viewport->origin.y, viewport->origin.y + viewport->size.height, - ORTHO_NEAR_PLANE, + 2 * ORTHO_NEAR_PLANE - ORTHO_FAR_PLANE, ORTHO_FAR_PLANE); if (signal_semaphore != VK_NULL_HANDLE) // this is a dependent pass |