planetwars.dev/web/pw-visualizer/assets/shaders/frag/masked_image.glsl

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2022-07-18 07:40:01 +02:00
#ifdef GL_ES
precision mediump float;
#endif
// Passed in from the vertex shader.
varying vec2 v_texCoord;
uniform float u_step_interval;
uniform float u_time;
uniform vec3 u_color;
uniform vec3 u_color_next;
// The texture.
uniform sampler2D u_texture;
void main() {
float alpha = texture2D(u_texture, v_texCoord).a;
vec3 color = mix(u_color, u_color_next, u_time);
gl_FragColor = vec4(color, alpha);
}