47 lines
1.3 KiB
GLSL
47 lines
1.3 KiB
GLSL
/*
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contributors: Patricio Gonzalez Vivo
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description: returns a 4x4 scale matrix
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use:
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- <mat4> scale4d(<float|vec3|vec4> radians)
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- <mat4> scale4d(<float> x, <float> y, <float> z [, <float> w])
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license:
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- Copyright (c) 2021 Patricio Gonzalez Vivo under Prosperity License - https://prosperitylicense.com/versions/3.0.0
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- Copyright (c) 2021 Patricio Gonzalez Vivo under Patron License - https://lygia.xyz/license
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*/
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#ifndef FNC_SCALE4D
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mat4 scale4d(float s) {
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return mat4(s, 0.0, 0.0, 0.0,
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0.0, s, 0.0, 0.0,
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0.0, 0.0, s, 0.0,
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0.0, 0.0, 0.0, 1.0 );
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}
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mat4 scale4d(float x, float y, float z) {
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return mat4( x, 0.0, 0.0, 0.0,
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0.0, y, 0.0, 0.0,
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0.0, 0.0, z, 0.0,
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0.0, 0.0, 0.0, 1.0);
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}
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mat4 scale4d(float x, float y, float z, float w) {
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return mat4( x, 0.0, 0.0, 0.0,
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0.0, y, 0.0, 0.0,
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0.0, 0.0, z, 0.0,
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0.0, 0.0, 0.0, w );
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}
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mat4 scale4d(vec3 s) {
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return mat4(s.x, 0.0, 0.0, 0.0,
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0.0, s.y, 0.0, 0.0,
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0.0, 0.0, s.z, 0.0,
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0.0, 0.0, 0.0, 1.0 );
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}
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mat4 scale4d(vec4 s) {
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return mat4(s.x, 0.0, 0.0, 0.0,
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0.0, s.y, 0.0, 0.0,
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0.0, 0.0, s.z, 0.0,
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0.0, 0.0, 0.0, s.w );
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}
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#endif
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