struct Eagle::Mat3

Overview

A 3x3 matrix in column-major order. Eagle uses it for normal matrices in 3D shaders.

eagle/math/mat4.cr

#*(o : Mat3) : Mat3
Composes matrices.
#*(v : Vec3) : Vec3
Transforms a vector.
#[](col : Int, row : Int) : Float32
Reads the element at col, row.
#[]=(col : Int, row : Int, v : Number)
Writes the element at col, row.
#data : StaticArray(Float32, 9)
The raw column-major storage.
#determinant : Float32
The determinant.
#inverse : Mat3
The inverse matrix.
#to_unsafe : Pointer(Float32)
Pointer to the 9 floats, for passing to OpenGL.
#transposed : Mat3
Rows and columns swapped.

def self.identity : Mat3 #

The identity matrix.

def self.new(m : StaticArray(Float32, 9)) #

Wraps 9 floats in column-major order.

def self.new #

Creates the zero matrix.

def *(o : Mat3) : Mat3 #

Composes matrices.

def *(v : Vec3) : Vec3 #

Transforms a vector.

def [](col : Int, row : Int) : Float32 #

Reads the element at col, row.

def []=(col : Int, row : Int, v : Number) #

Writes the element at col, row.

def data : StaticArray(Float32, 9) #

The raw column-major storage.

def determinant : Float32 #

The determinant.

def inverse : Mat3 #

The inverse matrix.

def to_unsafe : Pointer(Float32) #

Pointer to the 9 floats, for passing to OpenGL.

def transposed : Mat3 #

Rows and columns swapped.