stk-code_catmod/data/shaders/degraded_ibl.frag

uniform sampler2D ntex;

out vec4 Diff;
out vec4 Spec;

#stk_include "utils/decodeNormal.frag"
#stk_include "utils/getPosFromUVDepth.frag"
#stk_include "utils/DiffuseIBL.frag"
#stk_include "utils/SpecularIBL.frag"

void main(void)
{
    vec2 uv = gl_FragCoord.xy / screen;
    vec3 normal = normalize(DecodeNormal(2. * texture(ntex, uv).xy - 1.));

    Diff = vec4(0.25 * DiffuseIBL(normal), 1.);
    Spec = vec4(0., 0., 0., 1.);
}