simple_glow_fs.glsl

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/**
 * @file
 * @brief This is the glow shader that is applied if no other shader is
 * active but the glow map should get rendered.
 */
 
#if r_postprocess
    /*
     * Indicates that gl_FragData is written to, not gl_FragColor.
     * #extension needs to be placed before all non preprocessor code.
     */
    #extension GL_ARB_draw_buffers : enable
#endif
 
/** Diffuse. */
uniform sampler2D SAMPLER_DIFFUSE;
 
#include "write_fragment_fs.glsl"
 
void main(void) {
    vec4 diffuse_tex = texture2D(SAMPLER_DIFFUSE, gl_TexCoord[0].st);
 
    /* glowmap will be added automatically */
    writeFragment(diffuse_tex);
}