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/*
Hurry Curry! - a game about cooking
Copyright (C) 2025 Hurry Curry! Contributors
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, version 3 of the License only.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
shader_type spatial;
uniform float angle = .2;
uniform float frequency = .5;
uniform float width = .2;
uniform float speed = 1.;
uniform float alpha_fac = 1.;
void fragment() {
ALBEDO = vec3(1., 1., 0.);
vec2 uv = UV.xy;
uv.x = abs(2. * uv.x - 1.);
float alpha = step(
mod(uv.y - TIME * speed + angle * uv.x, frequency), width
);
ALPHA = alpha * alpha_fac;
}
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