3dexperiments/assets/shaders/particles.fs

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precision mediump float;
varying vec2 uv1;
varying vec2 uv2;
varying float blend;
uniform sampler2D texture0;
void main() {
vec4 color1 = texture2D(texture0, uv1);
vec4 color2 = texture2D(texture0, uv2);
gl_FragColor = mix(color1, color2, blend);
}