53e32a9848
git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14971 178a84e3-b1eb-0310-8ba1-8eac791a3b58
26 lines
737 B
GLSL
26 lines
737 B
GLSL
#version 140
|
|
uniform sampler2D texture;
|
|
uniform sampler2D normals_and_depth;
|
|
uniform mat4 invproj;
|
|
uniform vec2 screen;
|
|
|
|
in float lf;
|
|
in vec2 tc;
|
|
out vec4 color;
|
|
|
|
|
|
void main(void)
|
|
{
|
|
vec2 xy = gl_FragCoord.xy / screen;
|
|
float FragZ = gl_FragCoord.z;
|
|
float EnvZ = texture2D(normals_and_depth, xy).a;
|
|
vec4 FragmentPos = invproj * (2. * vec4(xy, FragZ, 1.0) - 1.);
|
|
FragmentPos /= FragmentPos.w;
|
|
vec4 EnvPos = invproj * (2. * vec4(xy, EnvZ, 1.0) - 1.);
|
|
EnvPos /= EnvPos.w;
|
|
float len = dot(vec3(1.0), abs(texture2D(normals_and_depth, xy).xyz));
|
|
float alpha = (len < 0.2) ? 1. : clamp((EnvPos.z - FragmentPos.z) * 0.3, 0., 1.);
|
|
color = texture2D(texture, tc);
|
|
color.a *= alpha * smoothstep(1., 0.8, lf);
|
|
}
|