gistfile1.cpp

/* lighting fragment shader (not quite phong)
 * http://www.lighthouse3d.com/opengl/glsl/index.php/index.php?ogldir1
 * James Stanley 2011
 */

#version 120

uniform sampler2D texture;

void main() {
    vec2 p = gl_TexCoord[0].xy;
    vec4 tex = texture2D(texture, p);
    /* TODO: cope properly when there is no texture */
    gl_FragColor = gl_Color.rgbr;
    //gl_FragColor = vec4( gl_Color.rgb * tex.rgb, gl_Color.r );
    //gl_FragColor = vec4(gl_Color.r * tex.r, gl_Color.g * tex.g, gl_Color.b * tex.b, gl_Color.r);
}