tmpvar/vec4.c

gl-matrix's vec4, in c, split into smaller pieces

gl-vec4

Part of a fork of @toji's gl-matrix to c, split into smaller pieces: this package contains glMatrix.vec4.

Usage

main.c

#include <vec4/create.h>

int main() {
  vec4 v4 = vec4_create();
  return 0;
}

compiled with gcc main.c -o main -Inode_modules/vec4.c/include

with cmake

CMakeLists.txt

cmake_minimum_required(VERSION 3.2)
project (vec4-test)
file(GLOB CMAKE_INCLUDES "node_modules/*/CMakeLists.txt")
include(${CMAKE_INCLUDES})
add_executable(main main.c)

API

• vec4_add()
• vec4_clone()
• vec4_copy()
• vec4_create()
• vec4_distance()
• vec4_divide()
• vec4_dot()
• vec4_fromValues()
• vec4_inverse()
• vec4_length()
• vec4_lerp()
• vec4_max()
• vec4_min()
• vec4_multiply()
• vec4_negate()
• vec4_normalize()
• vec4_random()
• vec4_scale()
• vec4_scaleAndAdd()
• vec4_set()
• vec4_squaredDistance()
• vec4_squaredLength()
• vec4_subtract()
• vec4_transformMat4()
• vec4_transformQuat()

vec4_add(vec4 out:vec4, a:vec4, b:vec4)

Adds two vec4's

vec4_clone(a:vec4)

Creates a new vec4 initialized with values from an existing vector

vec4_copy(vec4 out:vec4, a:vec4)

Copy the values from one vec4 to another

vec4_create()

Creates a new, empty vec4

vec4_distance(a:vec4, b:vec4)

Calculates the euclidian distance between two vec4's

vec4_divide(vec4 out:vec4, a:vec4, b:vec4)

Divides two vec4's

vec4_dot(a:vec4, b:vec4)

Calculates the dot product of two vec4's

vec4_fromValues(x:Number, y:Number, z:Number, w:Number)

Creates a new vec4 initialized with the given values

vec4_inverse(vec4 out:vec4, a:vec4)

Returns the inverse of the components of a vec4

vec4_length(a:vec4)

Calculates the length of a vec4

vec4_lerp(vec4 out:vec4, a:vec4, b:vec4, t:Number)

Performs a linear interpolation between two vec4's

vec4_max(vec4 out:vec4, a:vec4, b:vec4)

Returns the maximum of two vec4's

vec4_min(vec4 out:vec4, a:vec4, b:vec4)

Returns the minimum of two vec4's

vec4_multiply(vec4 out:vec4, a:vec4, b:vec4)

Multiplies two vec4's

vec4_negate(vec4 out:vec4, a:vec4)

Negates the components of a vec4

vec4_normalize(vec4 out:vec4, a:vec4)

Normalize a vec4

vec4_random(vec4 out:vec4, [scale]:Number)

Generates a random vector with the given scale

vec4_scale(vec4 out:vec4, a:vec4, b:Number)

Scales a vec4 by a scalar number

vec4_scaleAndAdd(vec4 out:vec4, a:vec4, b:vec4, scale:Number)

Adds two vec4's after scaling the second operand by a scalar value

vec4_set(vec4 out:vec4, x:Number, y:Number, z:Number, w:Number)

Set the components of a vec4 to the given values

vec4_squaredDistance(a:vec4, b:vec4)

Calculates the squared euclidian distance between two vec4's

vec4_squaredLength(a:vec4)

Calculates the squared length of a vec4

vec4_subtract(vec4 out:vec4, a:vec4, b:vec4)

Subtracts vector b from vector a

vec4_transformMat4(vec4 out:vec4, a:vec4, m:mat4)

Transforms the vec4 with a mat4.

vec4_transformQuat(vec4 out:vec4, a:vec4, q:quat)

Transforms the vec4 with a quat

License

MIT. See LICENSE.md for details.