Outline

MMath outline

The information here is not guaranteed to be up to date, but it may still be helpful.

Basic types:

• Scalars
• Vectors
• Quaternions
• Matrices
• Transformations

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Scalars

Typedef:

	Default	MMATH_DOUBLE
Type	float	double
Size	4 bytes	8 bytes

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Vectors

Types:

Name	Data	Size (single)	Size (double)	Accessors
vec2	2 scalars	8 bytes	16 bytes	scalar data[2] scalar x, y
vec3	3 scalars	12 bytes	24 bytes	scalar data[3] scalar x, y, z scalar r, g, b
vec4	4 scalars	16 bytes	32 bytes	scalar data[4] scalar x, y, z, w scalar r, g, b, a

Functions:

vec2 vec3ToVec2(vec3 a)
vec2 vec4ToVec2(vec4 a)
vec3 vec2ToVec3(vec2 a, scalar z)
vec3 vec4ToVec3(vec4 a)
vec4 vec2ToVec4(vec2 a, scalar z, scalar w)
vec4 vec3ToVec4(vec3 a, scalar w)

vec3 vecCross(vec3 a, vec3 b)

vec vecAdd(vec a, vec b)
vec vecSub(vec a, vec b)
vec vecMul(vec a, vec b)
vec vecDiv(vec a, vec b)
vec vecAddScalar(vec a, scalar b)
vec vecSubScalar(vec a, scalar b)
vec vecMulScalar(vec a, scalar b)
vec vecDivScalar(vec a, scalar b)
vec vecNormalize(vec a)
vec vecLerp(vec f, vec l, scalar t)
scalar vecDot(vec a, vec b)
scalar vecLength(vec a)

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Quaternions

Types:

Name	Data	Size (single)	Size (double)	Accessors
quat	4 scalars	16 bytes	32 bytes	scalar data[4] vec4 vec vec3 axis scalar x, y, z, w

Functions:

quat quatAdd(quat a, quat b)
quat quatMul(quat a, quat b)
quat quatMulVec3(quat a, vec3 b)
quat quatMulScalar(quat a, scalar b)
quat quatNormalize(quat a)
quat quatNegate(quat a)
quat quatConjugate(quat a)
quat quatInverse(quat a)
quat quatEuler(vec3 e)
quat quatAxisAngle(vec3 axis, scalar r)
quat quatSlerp(quat f, quat l, scalar t)
mat3 quatToMat3(quat a)
scalar quatLength(quat a)

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Matrices

Types:

Name	Data	Size (single)	Size (double)	Accessors
mat2	4 scalars	16 bytes	32 bytes	scalar data[4] vec2 row[2] scalar x0, y0 scalar x1, y1
mat3	9 scalars	24 bytes	48 bytes	scalar data[9] vec3 row[3] scalar x0, y0, z0 scalar x1, y1, z1 scalar x2, y2, z2
mat4	16 scalars	64 bytes	128 bytes	scalar data[16] vec4 row[4] scalar x0, y0, z0, w0 scalar x1, y1, z1, w1 scalar x2, y2, z2, w2 scalar x3, y3, z3, w3

Functions:

mat2 mat3ToVec2(mat3 a)
mat2 mat4ToVec2(mat4 a)
mat3 mat2ToVec3(mat2 a, scalar z)
mat3 mat4ToVec3(mat4 a)
mat4 mat2ToVec4(mat2 a, scalar z, scalar w)
mat4 mat3ToVec4(mat3 a, scalar w)

mat3 mat3RotateX(scalar r)
mat3 mat3RotateY(scalar r)
mat3 mat3RotateZ(scalar r)

mat4 mat4Perspective(scalar aspect, scalar fovY, scalar zNear, scalar zFar)
mat4 mat4LookAt(vec3 eye, vec3 center, vec3 up)

mat matDiagonal(scalar a)
mat matAdd(mat a, mat b)
mat matSub(mat a, mat b)
mat matMul(mat a, mat b)
mat matMulScalar(mat a, scalar b)
mat matTranspose(mat a)
vec matMulVec(mat a, vec b)

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Transformations

Types:

Name	Data	Size (single)	Size (double)	Accessors
transformation	2 vec3s 1 quat	40 bytes	80 bytes	vec3 pos vec3 scale quat rot

Functions:

transform transformMul(transform a, transform b)
transform transformLerp(transform f, transform l, scalar t)
mat4 transformToMat4(transform t)