// Version preprocessor automatically added by fae, either 100 or 110.
varying vec2 frag_texcoord;
varying vec4 frag_color;
uniform sampler2D tex;
void main(void) {
vec4 out_color = frag_color;
out_color.a *= texture2D(tex, frag_texcoord).r;
gl_FragColor = out_color;
}