Files
MapLibreParticleLab/shaders/collision_box.fragment.glsl
mwilsnd 4828cc7a8b Upgrade OpenGL backend to ES 3.0 (#995)
Co-authored-by: Tadej Novak <tadej@tano.si>
2023-04-13 23:24:45 +02:00

21 lines
399 B
GLSL

in float v_placed;
in float v_notUsed;
void main() {
float alpha = 0.5;
// Red = collision, hide label
fragColor = vec4(1.0, 0.0, 0.0, 1.0) * alpha;
// Blue = no collision, label is showing
if (v_placed > 0.5) {
fragColor = vec4(0.0, 0.0, 1.0, 0.5) * alpha;
}
if (v_notUsed > 0.5) {
// This box not used, fade it out
fragColor *= .1;
}
}