#version 330 core

uniform  sampler2D  uTexture;
uniform  float      uTextureScale;
in       vec2       vTextureXY;
out      vec4       fColor;

void main() {
	fColor = texture(uTexture, vTextureXY).rgba;

	float lineCount = textureSize(uTexture, 0).y / uTextureScale;
	fColor.xyz *= abs(sin(radians(vTextureXY.y * 180. * lineCount)));
}