lygia/space/orthographic)create orthographic matrix
Use:
<mat4> orthographic(<float> left, <float> right, <float> bottom, <float> top, <float> near, <float> far)
#ifndef FNC_ORTHOGRAPHIC
#define FNC_ORTHOGRAPHIC
mat4 orthographic(float l, float r, float b, float t, float n, float f) {
return mat4(
vec4(2.0/(r-l), 0.0, 0.0, 0.0),
vec4(0.0, 2.0/(t-b), 0.0, 0.0),
vec4(0.0, 0.0, -2.0/(f-n), 0.0),
vec4(-(r+l)/(r-l), -(t+b)/(t-b), -(f+n)/(f-n), 1.0)
);
}
#endif
Use:
<mat4> orthographic(<float> left, <float> right, <float> bottom, <float> top, <float> near, <float> far)
#ifndef FNC_ORTHOGRAPHIC
#define FNC_ORTHOGRAPHIC
mat4 orthographic(float l, float r, float b, float t, float n, float f) {
return mat4(
float4(2.0/(r-l), 0.0, 0.0, 0.0),
float4(0.0, 2.0/(t-b), 0.0, 0.0),
float4(0.0, 0.0, -2.0/(f-n), 0.0),
float4(-(r+l)/(r-l), -(t+b)/(t-b), -(f+n)/(f-n), 1.0)
);
}
#endif
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