itsmattkc
065fc9e10e
Since sequence resolution is provided to the nodes now, it no longer needs to be a global in the shaders Removed some unused shaders Added default params to ShaderCode to allow skipping types that aren't used
43 lines
1.1 KiB
GLSL
43 lines
1.1 KiB
GLSL
uniform vec2[256] points_in;
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uniform int points_in_count;
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uniform vec4 color_in;
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uniform vec2 resolution_in;
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in vec2 ove_texcoord;
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out vec4 fragColor;
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/*
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int pnpoly(int npol, float *xp, float *yp, float x, float y) {
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int i, j, c = 0;
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for (i = 0, j = npol-1; i < npol; j = i++) {
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if ((((yp[i] <= y) && (y < yp[j])) ||
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((yp[j] <= y) && (y < yp[i]))) &&
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(x < (xp[j] - xp[i]) * (y - yp[i]) / (yp[j] - yp[i]) + xp[i]))
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c = !c;
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}
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return c;
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}
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*/
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bool pnpoly(vec2 p) {
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bool c = false;
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int i, j;
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for (i = 0, j = points_in_count-1; i < points_in_count; j = i++) {
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if ((((points_in[i].y <= p.y) && (p.y < points_in[j].y)) ||
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((points_in[j].y <= p.y) && (p.y < points_in[i].y))) &&
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(p.x < (points_in[j].x - points_in[i].x) * (p.y - points_in[i].y) / (points_in[j].y - points_in[i].y) + points_in[i].x))
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c = !c;
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}
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return c;
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}
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void main(void) {
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if (points_in_count > 0 && pnpoly(ove_texcoord * resolution_in)) {
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fragColor = color_in;
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} else {
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fragColor = vec4(0.0, 0.0, 0.0, 0.0);
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}
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}
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