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Implement default infinite perspective projection matrix creation functions

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This commit is contained in:
Ali Emre Gülcü
2026-02-10 16:35:50 +03:00
parent d6c6b4c542
commit 0dc17e5d47
7 changed files with 93 additions and 1 deletions
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4
include/cglm/call/cam.h
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@@ -63,6 +63,10 @@ CGLM_EXPORT
void
glmc_perspective_default(float aspect, mat4 dest);
CGLM_EXPORT
void
glmc_perspective_default_infinite(float aspect, mat4 dest);
CGLM_EXPORT
void
glmc_perspective_resize(float aspect, mat4 proj);

22
include/cglm/cam.h
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@@ -30,6 +30,7 @@
float nearZ,
mat4 dest)
CGLM_INLINE void glm_perspective_default(float aspect, mat4 dest)
CGLM_INLINE void glm_perspective_default_infinite(float aspect, mat4 dest)
CGLM_INLINE void glm_perspective_resize(float aspect, mat4 proj)
CGLM_INLINE void glm_lookat(vec3 eye, vec3 center, vec3 up, mat4 dest)
CGLM_INLINE void glm_look(vec3 eye, vec3 dir, vec3 up, mat4 dest)
@@ -343,6 +344,27 @@ glm_perspective_default(float aspect, mat4 dest) {
#endif
}
/*!
* @brief set up infinite perspective projection matrix with default near
* and angle values
*
* @param[in] aspect aspect ratio ( width / height )
* @param[out] dest result matrix
*/
CGLM_INLINE
void
glm_perspective_default_infinite(float aspect, mat4 dest) {
#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
glm_perspective_default_infinite_lh_zo(aspect, dest);
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
glm_perspective_default_infinite_lh_no(aspect, dest);
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
glm_perspective_default_infinite_rh_zo(aspect, dest);
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
glm_perspective_default_infinite_rh_no(aspect, dest);
#endif
}
/*!
* @brief resize perspective matrix by aspect ratio ( width / height )
* this makes very easy to resize proj matrix when window /viewport

15
include/cglm/clipspace/persp_lh_no.h
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@@ -21,6 +21,7 @@
float nearZ,
mat4 dest)
CGLM_INLINE void glm_perspective_default_lh_no(float aspect, mat4 dest)
CGLM_INLINE void glm_perspective_default_infinite_lh_no(float aspect, mat4 dest)
CGLM_INLINE void glm_perspective_resize_lh_no(float aspect, mat4 proj)
CGLM_INLINE void glm_persp_move_far_lh_no(mat4 proj,
float deltaFar)
@@ -165,6 +166,20 @@ glm_perspective_default_lh_no(float aspect, mat4 dest) {
glm_perspective_lh_no(GLM_PI_4f, aspect, 0.01f, 100.0f, dest);
}
/*!
* @brief set up infinite perspective projection matrix with default near
* and angle values with a left-hand coordinate system and a
* clip-space of [-1, 1].
*
* @param[in] aspect aspect ratio ( width / height )
* @param[out] dest result matrix
*/
CGLM_INLINE
void
glm_perspective_default_infinite_lh_no(float aspect, mat4 dest) {
glm_perspective_infinite_lh_no(GLM_PI_4f, aspect, 0.01f, dest);
}
/*!
* @brief resize perspective matrix by aspect ratio ( width / height )
* this makes very easy to resize proj matrix when window /viewport

15
include/cglm/clipspace/persp_lh_zo.h
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@@ -21,6 +21,7 @@
float nearZ,
mat4 dest)
CGLM_INLINE void glm_perspective_default_lh_zo(float aspect, mat4 dest)
CGLM_INLINE void glm_perspective_default_infinite_lh_zo(float aspect, mat4 dest)
CGLM_INLINE void glm_perspective_resize_lh_zo(float aspect, mat4 proj)
CGLM_INLINE void glm_persp_move_far_lh_zo(mat4 proj,
float deltaFar)
@@ -189,6 +190,20 @@ glm_perspective_default_lh_zo(float aspect, mat4 dest) {
glm_perspective_lh_zo(GLM_PI_4f, aspect, 0.01f, 100.0f, dest);
}
/*!
* @brief set up infinite perspective projection matrix with default near
* and angle values with a left-hand coordinate system and a
* clip-space of [0, 1].
*
* @param[in] aspect aspect ratio ( width / height )
* @param[out] dest result matrix
*/
CGLM_INLINE
void
glm_perspective_default_infinite_lh_zo(float aspect, mat4 dest) {
glm_perspective_infinite_lh_zo(GLM_PI_4f, aspect, 0.01f, dest);
}
/*!
* @brief resize perspective matrix by aspect ratio ( width / height )
* this makes very easy to resize proj matrix when window /viewport

15
include/cglm/clipspace/persp_rh_no.h
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@@ -21,6 +21,7 @@
float nearZ,
mat4 dest)
CGLM_INLINE void glm_perspective_default_rh_no(float aspect, mat4 dest)
CGLM_INLINE void glm_perspective_default_infinite_rh_no(float aspect, mat4 dest)
CGLM_INLINE void glm_perspective_resize_rh_no(float aspect, mat4 proj)
CGLM_INLINE void glm_persp_move_far_rh_no(mat4 proj,
float deltaFar)
@@ -165,6 +166,20 @@ glm_perspective_default_rh_no(float aspect, mat4 dest) {
glm_perspective_rh_no(GLM_PI_4f, aspect, 0.01f, 100.0f, dest);
}
/*!
* @brief set up infinite perspective projection matrix with default near
* and angle values with a right-hand coordinate system and a
* clip-space of [-1, 1].
*
* @param[in] aspect aspect ratio ( width / height )
* @param[out] dest result matrix
*/
CGLM_INLINE
void
glm_perspective_default_infinite_rh_no(float aspect, mat4 dest) {
glm_perspective_infinite_rh_no(GLM_PI_4f, aspect, 0.01f, dest);
}
/*!
* @brief resize perspective matrix by aspect ratio ( width / height )
* this makes very easy to resize proj matrix when window /viewport

15
include/cglm/clipspace/persp_rh_zo.h
View File

@@ -21,6 +21,7 @@
float nearZ,
mat4 dest)
CGLM_INLINE void glm_perspective_default_rh_zo(float aspect, mat4 dest)
CGLM_INLINE void glm_perspective_default_infinite_rh_zo(float aspect, mat4 dest)
CGLM_INLINE void glm_perspective_resize_rh_zo(float aspect, mat4 proj)
CGLM_INLINE void glm_persp_move_far_rh_zo(mat4 proj,
float deltaFar)
@@ -163,6 +164,20 @@ glm_perspective_default_rh_zo(float aspect, mat4 dest) {
glm_perspective_rh_zo(GLM_PI_4f, aspect, 0.01f, 100.0f, dest);
}
/*!
* @brief set up infinite perspective projection matrix with default near
* and angle values with a right-hand coordinate system and a
* clip-space of [0, 1].
*
* @param[in] aspect aspect ratio ( width / height )
* @param[out] dest result matrix
*/
CGLM_INLINE
void
glm_perspective_default_infinite_rh_zo(float aspect, mat4 dest) {
glm_perspective_infinite_rh_zo(GLM_PI_4f, aspect, 0.01f, dest);
}
/*!
* @brief resize perspective matrix by aspect ratio ( width / height )
* this makes very easy to resize proj matrix when window /viewport

6
src/cam.c
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@@ -80,6 +80,12 @@ glmc_perspective_default(float aspect, mat4 dest) {
glm_perspective_default(aspect, dest);
}
CGLM_EXPORT
void
glmc_perspective_default_infinite(float aspect, mat4 dest) {
glm_perspective_default_infinite(aspect, dest);
}
CGLM_EXPORT
void
glmc_perspective_resize(float aspect, mat4 proj) {