uniform sampler2D tex; uniform float contrast;
void main(void) {
vec4 color = texture2D(tex, gl_TexCoord[0].xy); color = (color-0.5)*contrast + 0.5; gl_FragColor.rgb = color.rgb; gl_FragColor.a = 1.0;
}
uniform sampler2D tex; uniform float contrast;
void main(void) {
vec4 color = texture2D(tex, gl_TexCoord[0].xy); color = (color-0.5)*contrast + 0.5; gl_FragColor.rgb = color.rgb; gl_FragColor.a = 1.0;
}