4-Component Vector ================== .. code:: cpp #include .. struct:: vec4 Two component vector structure. .. member:: float vec4.x X component .. member:: float vec4.y Y component .. member:: float vec4.z Z component .. member:: float vec4.w W component .. member:: float vec4.ptr[4] Unioned array of all components --------------------- .. function:: void vec4_zero(struct vec4 *dst) Zeroes a vector :param dst: Destination --------------------- .. function:: void vec4_set(struct vec4 *dst, float x, float y, float z, float w) Sets the individual components of a 4-component vector. :param dst: Destination :param x: X component :param y: Y component :param z: Z component :param w: W component --------------------- .. function:: void vec4_copy(struct vec4 *dst, const struct vec4 *v) Copies a vector :param dst: Destination :param v: Vector to copy --------------------- .. function:: void vec4_from_vec3(struct vec4 *dst, const struct vec3 *v) Creates a 4-component vector from a 3-component vector :param dst: 4-component vector destination :param v: 3-component vector --------------------- .. function:: void vec4_add(struct vec4 *dst, const struct vec4 *v1, const struct vec4 *v2) Adds two vectors :param dst: Destination :param v1: Vector 1 :param v2: Vector 2 --------------------- .. function:: void vec4_sub(struct vec4 *dst, const struct vec4 *v1, const struct vec4 *v2) Subtracts two vectors :param dst: Destination :param v1: Vector being subtracted from :param v2: Vector being subtracted --------------------- .. function:: void vec4_mul(struct vec4 *dst, const struct vec4 *v1, const struct vec4 *v2) Multiplies two vectors :param dst: Destination :param v1: Vector 1 :param v2: Vector 2 --------------------- .. function:: void vec4_div(struct vec4 *dst, const struct vec4 *v1, const struct vec4 *v2) Divides two vectors :param dst: Destination :param v1: Dividend :param v2: Divisor --------------------- .. function:: void vec4_addf(struct vec4 *dst, const struct vec4 *v, float f) Adds a floating point to all components :param dst: Destination :param dst: Vector :param f: Floating point --------------------- .. function:: void vec4_subf(struct vec4 *dst, const struct vec4 *v, float f) Subtracts a floating point from all components :param dst: Destination :param v: Vector being subtracted from :param f: Floating point being subtracted --------------------- .. function:: void vec4_mulf(struct vec4 *dst, const struct vec4 *v, float f) Multiplies a floating point with all components :param dst: Destination :param dst: Vector :param f: Floating point --------------------- .. function:: void vec4_divf(struct vec4 *dst, const struct vec4 *v, float f) Divides a floating point from all components :param dst: Destination :param v: Vector (dividend) :param f: Floating point (divisor) --------------------- .. function:: void vec4_neg(struct vec4 *dst, const struct vec4 *v) Negates a vector :param dst: Destination :param v: Vector to negate --------------------- .. function:: float vec4_dot(const struct vec4 *v1, const struct vec4 *v2) Performs a dot product between two vectors :param v1: Vector 1 :param v2: Vector 2 :return: Result of the dot product --------------------- .. function:: float vec4_len(const struct vec4 *v) Gets the length of a vector :param v: Vector :return: The vector's length --------------------- .. function:: float vec4_dist(const struct vec4 *v1, const struct vec4 *v2) Gets the distance between two vectors :param v1: Vector 1 :param v2: Vector 2 :return: Distance between the two vectors --------------------- .. function:: void vec4_minf(struct vec4 *dst, const struct vec4 *v, float val) Gets the minimum values between a vector's components and a floating point :param dst: Destination :param v: Vector :param val: Floating point --------------------- .. function:: void vec4_min(struct vec4 *dst, const struct vec4 *v, const struct vec4 *min_v) Gets the minimum values between two vectors :param dst: Destination :param v: Vector 1 :param min_v: Vector 2 --------------------- .. function:: void vec4_maxf(struct vec4 *dst, const struct vec4 *v, float val) Gets the maximum values between a vector's components and a floating point :param dst: Destination :param v: Vector :param val: Floating point --------------------- .. function:: void vec4_max(struct vec4 *dst, const struct vec4 *v, const struct vec4 *max_v) Gets the maximum values between two vectors :param dst: Destination :param v: Vector 1 :param max_v: Vector 2 --------------------- .. function:: void vec4_abs(struct vec4 *dst, const struct vec4 *v) Gets the absolute values of each component :param dst: Destination :param v: Vector --------------------- .. function:: void vec4_floor(struct vec4 *dst, const struct vec4 *v) Gets the floor values of each component :param dst: Destination :param v: Vector --------------------- .. function:: void vec4_ceil(struct vec4 *dst, const struct vec4 *v) Gets the ceiling values of each component :param dst: Destination :param v: Vector --------------------- .. function:: int vec4_close(const struct vec4 *v1, const struct vec4 *v2, float epsilon) Compares two vectors :param v1: Vector 1 :param v2: Vector 2 :param epsilon: Maximum precision for comparison --------------------- .. function:: void vec4_norm(struct vec4 *dst, const struct vec4 *v) Normalizes a vector :param dst: Destination :param v: Vector to normalize --------------------- .. function:: void vec4_transform(struct vec4 *dst, const struct vec4 *v, const struct matrix4 *m) Transforms a vector :param dst: Destination :param v: Vector :param m: Matrix