filename:
external/cglm/struct/vec4.h
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/*
* Copyright (c), Recep Aslantas.
*
* MIT License (MIT), http://opensource.org/licenses/MIT
* Full license can be found in the LICENSE file
*/
/*
Macros:
GLMS_VEC4_ONE_INIT
GLMS_VEC4_BLACK_INIT
GLMS_VEC4_ZERO_INIT
GLMS_VEC4_ONE
GLMS_VEC4_BLACK
GLMS_VEC4_ZERO
Functions:
CGLM_INLINE vec4s glms_vec4(vec3s v3, float last);
CGLM_INLINE vec3s glms_vec4_copy3(vec4s v);
CGLM_INLINE vec4s glms_vec4_copy(vec4s v);
CGLM_INLINE vec4s glms_vec4_ucopy(vec4s v);
CGLM_INLINE void glms_vec4_pack(vec4s dst[], vec4 src[], size_t len);
CGLM_INLINE void glms_vec4_unpack(vec4 dst[], vec4s src[], size_t len);
CGLM_INLINE float glms_vec4_dot(vec4s a, vec4s b);
CGLM_INLINE float glms_vec4_norm2(vec4s v);
CGLM_INLINE float glms_vec4_norm(vec4s v);
CGLM_INLINE float glms_vec4_norm_one(vec4s v);
CGLM_INLINE float glms_vec4_norm_inf(vec4s v);
CGLM_INLINE vec4s glms_vec4_add(vec4s a, vec4s b);
CGLM_INLINE vec4s glms_vec4_adds(vec4s v, float s);
CGLM_INLINE vec4s glms_vec4_sub(vec4s a, vec4s b);
CGLM_INLINE vec4s glms_vec4_subs(vec4s v, float s);
CGLM_INLINE vec4s glms_vec4_mul(vec4s a, vec4s b);
CGLM_INLINE vec4s glms_vec4_scale(vec4s v, float s);
CGLM_INLINE vec4s glms_vec4_scale_as(vec4s v, float s);
CGLM_INLINE vec4s glms_vec4_div(vec4s a, vec4s b);
CGLM_INLINE vec4s glms_vec4_divs(vec4s v, float s);
CGLM_INLINE vec4s glms_vec4_addadd(vec4s a, vec4s b, vec4s dest);
CGLM_INLINE vec4s glms_vec4_subadd(vec4s a, vec4s b, vec4s dest);
CGLM_INLINE vec4s glms_vec4_muladd(vec4s a, vec4s b, vec4s dest);
CGLM_INLINE vec4s glms_vec4_muladds(vec4s a, float s, vec4s dest);
CGLM_INLINE vec4s glms_vec4_maxadd(vec4s a, vec4s b, vec4s dest);
CGLM_INLINE vec4s glms_vec4_minadd(vec4s a, vec4s b, vec4s dest);
CGLM_INLINE vec4s glms_vec4_subsub(vec4s a, vec4s b, vec4s dest);
CGLM_INLINE vec4s glms_vec4_addsub(vec4s a, vec4s b, vec4s dest);
CGLM_INLINE vec4s glms_vec4_mulsub(vec4s a, vec4s b, vec4s dest);
CGLM_INLINE vec4s glms_vec4_mulsubs(vec4s a, float s, vec4s dest);
CGLM_INLINE vec4s glms_vec4_maxsub(vec4s a, vec4s b, vec4s dest);
CGLM_INLINE vec4s glms_vec4_minsub(vec4s a, vec4s b, vec4s dest);
CGLM_INLINE vec4s glms_vec4_negate(vec4s v);
CGLM_INLINE vec4s glms_vec4_normalize(vec4s v);
CGLM_INLINE float glms_vec4_distance(vec4s a, vec4s b);
CGLM_INLINE float glms_vec4_distance2(vec4s a, vec4s b);
CGLM_INLINE vec4s glms_vec4_maxv(vec4s a, vec4s b);
CGLM_INLINE vec4s glms_vec4_minv(vec4s a, vec4s b);
CGLM_INLINE vec4s glms_vec4_clamp(vec4s v, float minVal, float maxVal);
CGLM_INLINE vec4s glms_vec4_lerp(vec4s from, vec4s to, float t);
CGLM_INLINE vec4s glms_vec4_lerpc(vec4s from, vec4s to, float t);
CGLM_INLINE vec4s glms_vec4_mix(vec4s from, vec4s to, float t);
CGLM_INLINE vec4s glms_vec4_mixc(vec4s from, vec4s to, float t);
CGLM_INLINE vec4s glms_vec4_step(vec4s edge, vec4s x);
CGLM_INLINE vec4s glms_vec4_smoothstep_uni(float edge0, float edge1, vec4s x);
CGLM_INLINE vec4s glms_vec4_smoothstep(vec4s edge0, vec4s edge1, vec4s x);
CGLM_INLINE vec4s glms_vec4_smoothinterp(vec4s from, vec4s to, float t);
CGLM_INLINE vec4s glms_vec4_smoothinterpc(vec4s from, vec4s to, float t);
CGLM_INLINE vec4s glms_vec4_cubic(float s);
CGLM_INLINE vec4s glms_vec4_swizzle(vec4s v, int mask);
CGLM_INLINE vec4s glms_vec4_make(float * restrict src);
CGLM_INLINE vec4s glms_vec4_reflect(vec4s v, vec4s n);
CGLM_INLINE bool glms_vec4_refract(vec4s v, vec4s n, float eta, vec4s *dest)
Deprecated:
glms_vec4_step_uni --> use glms_vec4_steps
*/
#ifndef cglms_vec4s_h
#define cglms_vec4s_h
#include "../common.h"
#include "../types-struct.h"
#include "../util.h"
#include "../vec4.h"
#include "vec4-ext.h"
/* DEPRECATED! */
#define glms_vec4_step_uni(edge, x) glms_vec4_steps(edge, x)
#define GLMS_VEC4_ONE_INIT {GLM_VEC4_ONE_INIT}
#define GLMS_VEC4_BLACK_INIT {GLM_VEC4_BLACK_INIT}
#define GLMS_VEC4_ZERO_INIT {GLM_VEC4_ZERO_INIT}
#define GLMS_VEC4_ONE ((vec4s)GLM_VEC4_ONE_INIT)
#define GLMS_VEC4_BLACK ((vec4s)GLM_VEC4_BLACK_INIT)
#define GLMS_VEC4_ZERO ((vec4s)GLM_VEC4_ZERO_INIT)
/*!
* @brief init vec4 using vec3
*
* @param[in] v3 vector3
* @param[in] last last item
* @returns destination
*/
CGLM_INLINE
vec4s
glms_vec4(vec3s v3, float last) {
vec4s r;
glm_vec4(v3.raw, last, r.raw);
return r;
}
/*!
* @brief copy first 3 members of [a] to [dest]
*
* @param[in] v source
* @returns vec3
*/
CGLM_INLINE
vec3s
glms_vec4_(copy3)(vec4s v) {
vec3s r;
glm_vec4_copy3(v.raw, r.raw);
return r;
}
/*!
* @brief copy all members of [a] to [dest]
*
* @param[in] v source
* @returns destination
*/
CGLM_INLINE
vec4s
glms_vec4_(copy)(vec4s v) {
vec4s r;
glm_vec4_copy(v.raw, r.raw);
return r;
}
/*!
* @brief copy all members of [a] to [dest]
*
* alignment is not required
*
* @param[in] v source
* @returns destination
*/
CGLM_INLINE
vec4s
glms_vec4_(ucopy)(vec4s v) {
vec4s r;
glm_vec4_ucopy(v.raw, r.raw);
return r;
}
/*!
* @brief pack an array of vec4 into an array of vec4s
*
* @param[out] dst array of vec4
* @param[in] src array of vec4s
* @param[in] len number of elements
*/
CGLM_INLINE
void
glms_vec4_(pack)(vec4s dst[], vec4 src[], size_t len) {
size_t i;
for (i = 0; i < len; i++) {
glm_vec4_copy(src[i], dst[i].raw);
}
}
/*!
* @brief unpack an array of vec4s into an array of vec4
*
* @param[out] dst array of vec4s
* @param[in] src array of vec4
* @param[in] len number of elements
*/
CGLM_INLINE
void
glms_vec4_(unpack)(vec4 dst[], vec4s src[], size_t len) {
size_t i;
for (i = 0; i < len; i++) {
glm_vec4_copy(src[i].raw, dst[i]);
}
}
/*!
* @brief make vector zero
*
* @returns zero vector
*/
CGLM_INLINE
vec4s
glms_vec4_(zero)(void) {
vec4s r;
glm_vec4_zero(r.raw);
return r;
}
/*!
* @brief make vector one
*
* @returns one vector
*/
CGLM_INLINE
vec4s
glms_vec4_(one)(void) {
vec4s r;
glm_vec4_one(r.raw);
return r;
}
/*!
* @brief vec4 dot product
*
* @param[in] a vector1
* @param[in] b vector2
*
* @return dot product
*/
CGLM_INLINE
float
glms_vec4_(dot)(vec4s a, vec4s b) {
return glm_vec4_dot(a.raw, b.raw);
}
/*!
* @brief norm * norm (magnitude) of vec
*
* we can use this func instead of calling norm * norm, because it would call
* sqrtf function twice but with this func we can avoid func call, maybe this is
* not good name for this func
*
* @param[in] v vec4
*
* @return norm * norm
*/
CGLM_INLINE
float
glms_vec4_(norm2)(vec4s v) {
return glm_vec4_norm2(v.raw);
}
/*!
* @brief norm (magnitude) of vec4
*
* @param[in] v vector
*
* @return norm
*/
CGLM_INLINE
float
glms_vec4_(norm)(vec4s v) {
return glm_vec4_norm(v.raw);
}
/*!
* @brief L1 norm of vec4
* Also known as Manhattan Distance or Taxicab norm.
* L1 Norm is the sum of the magnitudes of the vectors in a space.
* It is calculated as the sum of the absolute values of the vector components.
* In this norm, all the components of the vector are weighted equally.
*
* This computes:
* R = |v[0]| + |v[1]| + |v[2]| + |v[3]|
*
* @param[in] v vector
*
* @return L1 norm
*/
CGLM_INLINE
float
glms_vec4_(norm_one)(vec4s v) {
return glm_vec4_norm_one(v.raw);
}
/*!
* @brief Infinity norm of vec4
* Also known as Maximum norm.
* Infinity Norm is the largest magnitude among each element of a vector.
* It is calculated as the maximum of the absolute values of the vector components.
*
* This computes:
* inf norm = max(|v[0]|, |v[1]|, |v[2]|, |v[3]|)
*
* @param[in] v vector
*
* @return Infinity norm
*/
CGLM_INLINE
float
glms_vec4_(norm_inf)(vec4s v) {
return glm_vec4_norm_inf(v.raw);
}
/*!
* @brief add b vector to a vector store result in dest
*
* @param[in] a vector1
* @param[in] b vector2
* @returns destination vector
*/
CGLM_INLINE
vec4s
glms_vec4_(add)(vec4s a, vec4s b) {
vec4s r;
glm_vec4_add(a.raw, b.raw, r.raw);
return r;
}
/*!
* @brief add scalar to v vector store result in dest (d = v + vec(s))
*
* @param[in] v vector
* @param[in] s scalar
* @returns destination vector
*/
CGLM_INLINE
vec4s
glms_vec4_(adds)(vec4s v, float s) {
vec4s r;
glm_vec4_adds(v.raw, s, r.raw);
return r;
}
/*!
* @brief subtract b vector from a vector store result in dest (d = a - b)
*
* @param[in] a vector1
* @param[in] b vector2
* @returns destination vector
*/
CGLM_INLINE
vec4s
glms_vec4_(sub)(vec4s a, vec4s b) {
vec4s r;
glm_vec4_sub(a.raw, b.raw, r.raw);
return r;
}
/*!
* @brief subtract scalar from v vector store result in dest (d = v - vec(s))
*
* @param[in] v vector
* @param[in] s scalar
* @returns destination vector
*/
CGLM_INLINE
vec4s
glms_vec4_(subs)(vec4s v, float s) {
vec4s r;
glm_vec4_subs(v.raw, s, r.raw);
return r;
}
/*!
* @brief multiply two vectors (component-wise multiplication)
*
* @param a vector1
* @param b vector2
* @returns dest = (a[0] * b[0], a[1] * b[1], a[2] * b[2], a[3] * b[3])
*/
CGLM_INLINE
vec4s
glms_vec4_(mul)(vec4s a, vec4s b) {
vec4s r;
glm_vec4_mul(a.raw, b.raw, r.raw);
return r;
}
/*!
* @brief multiply/scale vec4 vector with scalar: result = v * s
*
* @param[in] v vector
* @param[in] s scalar
* @returns destination vector
*/
CGLM_INLINE
vec4s
glms_vec4_(scale)(vec4s v, float s) {
vec4s r;
glm_vec4_scale(v.raw, s, r.raw);
return r;
}
/*!
* @brief make vec4 vector scale as specified: result = unit(v) * s
*
* @param[in] v vector
* @param[in] s scalar
* @returns destination vector
*/
CGLM_INLINE
vec4s
glms_vec4_(scale_as)(vec4s v, float s) {
vec4s r;
glm_vec4_scale_as(v.raw, s, r.raw);
return r;
}
/*!
* @brief div vector with another component-wise division: d = a / b
*
* @param[in] a vector 1
* @param[in] b vector 2
* @returns result = (a[0]/b[0], a[1]/b[1], a[2]/b[2], a[3]/b[3])
*/
CGLM_INLINE
vec4s
glms_vec4_(div)(vec4s a, vec4s b) {
vec4s r;
glm_vec4_div(a.raw, b.raw, r.raw);
return r;
}
/*!
* @brief div vec4 vector with scalar: d = v / s
*
* @param[in] v vector
* @param[in] s scalar
* @returns destination vector
*/
CGLM_INLINE
vec4s
glms_vec4_(divs)(vec4s v, float s) {
vec4s r;
glm_vec4_divs(v.raw, s, r.raw);
return r;
}
/*!
* @brief add two vectors and add result to sum
*
* it applies += operator so dest must be initialized
*
* @param[in] a vector 1
* @param[in] b vector 2
* @returns dest += (a + b)
*/
CGLM_INLINE
vec4s
glms_vec4_(addadd)(vec4s a, vec4s b, vec4s dest) {
glm_vec4_addadd(a.raw, b.raw, dest.raw);
return dest;
}
/*!
* @brief sub two vectors and add result to dest
*
* it applies += operator so dest must be initialized
*
* @param[in] a vector 1
* @param[in] b vector 2
* @returns dest += (a - b)
*/
CGLM_INLINE
vec4s
glms_vec4_(subadd)(vec4s a, vec4s b, vec4s dest) {
glm_vec4_subadd(a.raw, b.raw, dest.raw);
return dest;
}
/*!
* @brief mul two vectors and add result to dest
*
* it applies += operator so dest must be initialized
*
* @param[in] a vector 1
* @param[in] b vector 2
* @returns dest += (a * b)
*/
CGLM_INLINE
vec4s
glms_vec4_(muladd)(vec4s a, vec4s b, vec4s dest) {
glm_vec4_muladd(a.raw, b.raw, dest.raw);
return dest;
}
/*!
* @brief mul vector with scalar and add result to sum
*
* it applies += operator so dest must be initialized
*
* @param[in] a vector
* @param[in] s scalar
* @returns dest += (a * b)
*/
CGLM_INLINE
vec4s
glms_vec4_(muladds)(vec4s a, float s, vec4s dest) {
glm_vec4_muladds(a.raw, s, dest.raw);
return dest;
}
/*!
* @brief add max of two vectors to result/dest
*
* it applies += operator so dest must be initialized
*
* @param[in] a vector 1
* @param[in] b vector 2
* @returns dest += max(a, b)
*/
CGLM_INLINE
vec4s
glms_vec4_(maxadd)(vec4s a, vec4s b, vec4s dest) {
glm_vec4_maxadd(a.raw, b.raw, dest.raw);
return dest;
}
/*!
* @brief add min of two vectors to result/dest
*
* it applies += operator so dest must be initialized
*
* @param[in] a vector 1
* @param[in] b vector 2
* @returns dest += min(a, b)
*/
CGLM_INLINE
vec4s
glms_vec4_(minadd)(vec4s a, vec4s b, vec4s dest) {
glm_vec4_minadd(a.raw, b.raw, dest.raw);
return dest;
}
/*!
* @brief sub two vectors and sub result to dest
*
* it applies -= operator so dest must be initialized
*
* @param[in] a vector 1
* @param[in] b vector 2
* @returns dest -= (a + b)
*/
CGLM_INLINE
vec4s
glms_vec4_(subsub)(vec4s a, vec4s b, vec4s dest) {
glm_vec4_subsub(a.raw, b.raw, dest.raw);
return dest;
}
/*!
* @brief add two vectors and sub result to dest
*
* it applies -= operator so dest must be initialized
*
* @param[in] a vector 1
* @param[in] b vector 2
* @returns dest -= (a + b)
*/
CGLM_INLINE
vec4s
glms_vec4_(addsub)(vec4s a, vec4s b, vec4s dest) {
glm_vec4_addsub(a.raw, b.raw, dest.raw);
return dest;
}
/*!
* @brief mul two vectors and sub result to dest
*
* it applies -= operator so dest must be initialized
*
* @param[in] a vector 1
* @param[in] b vector 2
* @returns dest -= (a * b)
*/
CGLM_INLINE
vec4s
glms_vec4_(mulsub)(vec4s a, vec4s b, vec4s dest) {
glm_vec4_mulsub(a.raw, b.raw, dest.raw);
return dest;
}
/*!
* @brief mul vector with scalar and sub result to dest
*
* it applies -= operator so dest must be initialized
*
* @param[in] a vector
* @param[in] s scalar
* @returns dest -= (a * b)
*/
CGLM_INLINE
vec4s
glms_vec4_(mulsubs)(vec4s a, float s, vec4s dest) {
glm_vec4_mulsubs(a.raw, s, dest.raw);
return dest;
}
/*!
* @brief sub max of two vectors to dest
*
* it applies -= operator so dest must be initialized
*
* @param[in] a vector 1
* @param[in] b vector 2
* @returns dest -= max(a, b)
*/
CGLM_INLINE
vec4s
glms_vec4_(maxsub)(vec4s a, vec4s b, vec4s dest) {
glm_vec4_maxsub(a.raw, b.raw, dest.raw);
return dest;
}
/*!
* @brief sub min of two vectors to dest
*
* it applies -= operator so dest must be initialized
*
* @param[in] a vector 1
* @param[in] b vector 2
* @returns dest -= min(a, b)
*/
CGLM_INLINE
vec4s
glms_vec4_(minsub)(vec4s a, vec4s b, vec4s dest) {
glm_vec4_minsub(a.raw, b.raw, dest.raw);
return dest;
}
/*!
* @brief negate vector components and store result in dest
*
* @param[in] v vector
* @returns result vector
*/
CGLM_INLINE
vec4s
glms_vec4_(negate)(vec4s v) {
glm_vec4_negate(v.raw);
return v;
}
/*!
* @brief normalize vec4 and store result in same vec
*
* @param[in] v vector
* @returns normalized vector
*/
CGLM_INLINE
vec4s
glms_vec4_(normalize)(vec4s v) {
glm_vec4_normalize(v.raw);
return v;
}
/**
* @brief distance between two vectors
*
* @param[in] a vector1
* @param[in] b vector2
* @return returns distance
*/
CGLM_INLINE
float
glms_vec4_(distance)(vec4s a, vec4s b) {
return glm_vec4_distance(a.raw, b.raw);
}
/**
* @brief squared distance between two vectors
*
* @param[in] a vector1
* @param[in] b vector2
* @return returns squared distance
*/
CGLM_INLINE
float
glms_vec4_(distance2)(vec4s a, vec4s b) {
return glm_vec4_distance2(a.raw, b.raw);
}
/*!
* @brief max values of vectors
*
* @param[in] a vector1
* @param[in] b vector2
* @returns destination
*/
CGLM_INLINE
vec4s
glms_vec4_(maxv)(vec4s a, vec4s b) {
vec4s r;
glm_vec4_maxv(a.raw, b.raw, r.raw);
return r;
}
/*!
* @brief min values of vectors
*
* @param[in] a vector1
* @param[in] b vector2
* @returns destination
*/
CGLM_INLINE
vec4s
glms_vec4_(minv)(vec4s a, vec4s b) {
vec4s r;
glm_vec4_minv(a.raw, b.raw, r.raw);
return r;
}
/*!
* @brief clamp vector's individual members between min and max values
*
* @param[in] v vector
* @param[in] minVal minimum value
* @param[in] maxVal maximum value
* @returns clamped vector
*/
CGLM_INLINE
vec4s
glms_vec4_(clamp)(vec4s v, float minVal, float maxVal) {
glm_vec4_clamp(v.raw, minVal, maxVal);
return v;
}
/*!
* @brief linear interpolation between two vectors
*
* formula: from + s * (to - from)
*
* @param[in] from from value
* @param[in] to to value
* @param[in] t interpolant (amount)
* @returns destination
*/
CGLM_INLINE
vec4s
glms_vec4_(lerp)(vec4s from, vec4s to, float t) {
vec4s r;
glm_vec4_lerp(from.raw, to.raw, t, r.raw);
return r;
}
/*!
* @brief linear interpolation between two vectors (clamped)
*
* formula: from + s * (to - from)
*
* @param[in] from from value
* @param[in] to to value
* @param[in] t interpolant (amount) clamped between 0 and 1
* @returns destination
*/
CGLM_INLINE
vec4s
glms_vec4_(lerpc)(vec4s from, vec4s to, float t) {
vec4s r;
glm_vec4_lerpc(from.raw, to.raw, t, r.raw);
return r;
}
/*!
* @brief linear interpolation between two vectors
*
* formula: from + s * (to - from)
*
* @param[in] from from value
* @param[in] to to value
* @param[in] t interpolant (amount)
* @returns destination
*/
CGLM_INLINE
vec4s
glms_vec4_(mix)(vec4s from, vec4s to, float t) {
vec4s r;
glm_vec4_mix(from.raw, to.raw, t, r.raw);
return r;
}
/*!
* @brief linear interpolation between two vectors (clamped)
*
* formula: from + s * (to - from)
*
* @param[in] from from value
* @param[in] to to value
* @param[in] t interpolant (amount) clamped between 0 and 1
* @returns destination
*/
CGLM_INLINE
vec4s
glms_vec4_(mixc)(vec4s from, vec4s to, float t) {
vec4s r;
glm_vec4_mixc(from.raw, to.raw, t, r.raw);
return r;
}
/*!
* @brief threshold function
*
* @param[in] edge threshold
* @param[in] x value to test against threshold
* @returns 0.0 if x < edge, else 1.0
*/
CGLM_INLINE
vec4s
glms_vec4_(step)(vec4s edge, vec4s x) {
vec4s r;
glm_vec4_step(edge.raw, x.raw, r.raw);
return r;
}
/*!
* @brief threshold function with a smooth transition (unidimensional)
*
* @param[in] edge0 low threshold
* @param[in] edge1 high threshold
* @param[in] x value to test against threshold
* @returns destination
*/
CGLM_INLINE
vec4s
glms_vec4_(smoothstep_uni)(float edge0, float edge1, vec4s x) {
vec4s r;
glm_vec4_smoothstep_uni(edge0, edge1, x.raw, r.raw);
return r;
}
/*!
* @brief threshold function with a smooth transition
*
* @param[in] edge0 low threshold
* @param[in] edge1 high threshold
* @param[in] x value to test against threshold
* @returns destination
*/
CGLM_INLINE
vec4s
glms_vec4_(smoothstep)(vec4s edge0, vec4s edge1, vec4s x) {
vec4s r;
glm_vec4_smoothstep(edge0.raw, edge1.raw, x.raw, r.raw);
return r;
}
/*!
* @brief smooth Hermite interpolation between two vectors
*
* formula: from + s * (to - from)
*
* @param[in] from from value
* @param[in] to to value
* @param[in] t interpolant (amount)
* @returns destination
*/
CGLM_INLINE
vec4s
glms_vec4_(smoothinterp)(vec4s from, vec4s to, float t) {
vec4s r;
glm_vec4_smoothinterp(from.raw, to.raw, t, r.raw);
return r;
}
/*!
* @brief smooth Hermite interpolation between two vectors (clamped)
*
* formula: from + s * (to - from)
*
* @param[in] from from value
* @param[in] to to value
* @param[in] t interpolant (amount) clamped between 0 and 1
* @returns destination
*/
CGLM_INLINE
vec4s
glms_vec4_(smoothinterpc)(vec4s from, vec4s to, float t) {
vec4s r;
glm_vec4_smoothinterpc(from.raw, to.raw, t, r.raw);
return r;
}
/*!
* @brief helper to fill vec4 as [S^3, S^2, S, 1]
*
* @param[in] s parameter
* @returns destination
*/
CGLM_INLINE
vec4s
glms_vec4_(cubic)(float s) {
vec4s r;
glm_vec4_cubic(s, r.raw);
return r;
}
/*!
* @brief swizzle vector components
*
* you can use existing masks e.g. GLM_XXXX, GLM_WZYX
*
* @param[in] v source
* @param[in] mask mask
* @returns swizzled vector
*/
CGLM_INLINE
vec4s
glms_vec4_(swizzle)(vec4s v, int mask) {
vec4s dest;
glm_vec4_swizzle(v.raw, mask, dest.raw);
return dest;
}
/*!
* @brief Create four dimensional vector from pointer
*
* @param[in] src pointer to an array of floats
* @returns constructed 4D vector from raw pointer
*/
CGLM_INLINE
vec4s
glms_vec4_(make)(const float * __restrict src) {
vec4s dest;
glm_vec4_make(src, dest.raw);
return dest;
}
/*!
* @brief reflection vector using an incident ray and a surface normal
*
* @param[in] v incident vector
* @param[in] n normalized normal vector
* @returns reflection result
*/
CGLM_INLINE
vec4s
glms_vec4_(reflect)(vec4s v, vec4s n) {
vec4s dest;
glm_vec4_reflect(v.raw, n.raw, dest.raw);
return dest;
}
/*!
* @brief computes refraction vector for an incident vector and a surface normal.
*
* calculates the refraction vector based on Snell's law. If total internal reflection
* occurs (angle too great given eta), dest is set to zero and returns false.
* Otherwise, computes refraction vector, stores it in dest, and returns true.
*
* this implementation does not explicitly preserve the 'w' component of the
* incident vector 'I' in the output 'dest', users requiring the preservation of
* the 'w' component should manually adjust 'dest' after calling this function.
*
* @param[in] v normalized incident vector
* @param[in] n normalized normal vector
* @param[in] eta ratio of indices of refraction (incident/transmitted)
* @param[out] dest refraction vector if refraction occurs; zero vector otherwise
*
* @returns true if refraction occurs; false if total internal reflection occurs.
*/
CGLM_INLINE
bool
glms_vec4_(refract)(vec4s v, vec4s n, float eta, vec4s * __restrict dest) {
return glm_vec4_refract(v.raw, n.raw, eta, dest->raw);
}
#endif /* cglms_vec4s_h */