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quakeforge/include/QF/Vulkan/projection.h

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[vulkan] Move projection matrix code to its own file And move more stuff over to simd.
2021-04-25 06:47:50 +00:00
#ifndef __QF_Vulkan_projection_h
#define __QF_Vulkan_projection_h
#include "QF/simd/types.h"
void QFV_Orthographic (mat4f_t proj, float xmin, float xmax,
float ymin, float ymax, float znear, float zfar);
[vulkan] Make near and far clip explicit parameters This improves the projection API in that near clip is a parameter rather than being taken directly from the cvar, and a far clip (ie, finite far plane) version is available (necessary for cascaded shadow maps as it's rather hard to fit a box to an infinite frustum). Also, the orthographic projection matrix is now reversed as per the perspective matrix (and the code tidied up a little), and a version that takes min and max vectors is available.
2023-08-13 08:25:17 +00:00
void QFV_OrthographicV (mat4f_t proj, vec4f_t mins, vec4f_t maxs);
[renderer] Clean up FOV and viewport handling Viewport and FOV updates are now separate so updating one doesn't cause recalculations of the other. Also, perspective setup is now done directly from the tangents of the half angles for fov_x and fov_y making the renderers independent of fov/aspect mode. I imagine things are a bit of a mess with view size changes, and especially screen size changes (not supported yet anyway), and vulkan winds up updating its projection matrices every frame, but everything that's expected to work does (vulkan errors out for fisheye or warp due to frame buffer creation not being supported yet).
2022-03-30 05:55:32 +00:00
// fov_x and fov_y are tan(fov/2) for x and y respectively
[vulkan] Make near and far clip explicit parameters This improves the projection API in that near clip is a parameter rather than being taken directly from the cvar, and a far clip (ie, finite far plane) version is available (necessary for cascaded shadow maps as it's rather hard to fit a box to an infinite frustum). Also, the orthographic projection matrix is now reversed as per the perspective matrix (and the code tidied up a little), and a version that takes min and max vectors is available.
2023-08-13 08:25:17 +00:00
void QFV_PerspectiveTan (mat4f_t proj, float fov_x, float fov_y,
float nearclip);
void QFV_InversePerspectiveTan (mat4f_t proj, float fov_x, float fov_y,
float nearclip);
void QFV_PerspectiveTanFar (mat4f_t proj, float fov_x, float fov_y,
float nearclip, float farclip);
void QFV_InversePerspectiveTanFar (mat4f_t proj, float fov_x, float fov_y,
float nearclip, float farclip);
void QFV_PerspectiveCos (mat4f_t proj, float fov, float nearclip);
[vulkan] Move projection matrix code to its own file And move more stuff over to simd.
2021-04-25 06:47:50 +00:00
[vulkan] Make z_up and box_rotations public They're now qfv_* and shared within the vulkan renderer. qfv_z_up cannot be shared across renderers as they have their own ideas for the world frame. qfv_box_rotations currently can't be shared across renderers because if the Y-axis flip and the way it's handled, but sharing should be achievable by modifying the other renderers to handle the sides correctly (glsl and gl need to do lookups for the side enums, sw just needs to be shown which way is up).
2023-07-30 02:13:48 +00:00
extern const mat4f_t qfv_z_up;
extern const mat4f_t qfv_box_rotations[6];
[vulkan] Move projection matrix code to its own file And move more stuff over to simd.
2021-04-25 06:47:50 +00:00
#endif//__QF_Vulkan_projection_h
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