43 lines
No EOL
1.4 KiB
GLSL
43 lines
No EOL
1.4 KiB
GLSL
#include "digits.glsl"
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/*
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contributors: Patricio Gonzalez Vivo
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description: |
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Draws all the digits of a matrix, useful for debugging.
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use: <vec4> matrix(<vec2> st, <mat2|mat3|mat4> M)
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options:
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DIGITS_DECIMALS: number of decimals after the point, defaults to 2
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DIGITS_SIZE: size of the font, defaults to vec2(.025)
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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_DRAW_MATRIX
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#define FNC_DRAW_MATRIX
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vec4 matrix(in vec2 st, in mat2 M) {
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vec4 rta = vec4(0.0);
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vec2 size = DIGITS_SIZE * abs(DIGITS_VALUE_OFFSET) * 2.0;
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rta.a = 0.5 * step(-DIGITS_SIZE.x, st.x) * step(st.x, size.x) * step(-DIGITS_SIZE.y, st.y) * step(st.y, size.y);
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rta += digits(st, M);
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return rta;
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}
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vec4 matrix(in vec2 st, in mat3 M) {
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vec4 rta = vec4(0.0);
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vec2 size = DIGITS_SIZE * abs(DIGITS_VALUE_OFFSET) * 3.0;
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rta.a = 0.5 * step(-DIGITS_SIZE.x, st.x) * step(st.x, size.x) * step(-DIGITS_SIZE.y, st.y) * step(st.y, size.y);
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rta += digits(st, M);
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return rta;
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}
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vec4 matrix(in vec2 st, in mat4 M) {
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vec4 rta = vec4(0.0);
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vec2 size = DIGITS_SIZE * abs(DIGITS_VALUE_OFFSET) * 4.0;
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rta.a = 0.5 * step(-DIGITS_SIZE.x, st.x) * step(st.x, size.x) * step(-DIGITS_SIZE.y, st.y) * step(st.y, size.y);
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rta += digits(st, M);
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return rta;
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}
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#endif |