22 lines
418 B
Text
22 lines
418 B
Text
|
#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);
|
||
|
|
}
|