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De-saturating the core of ALS surface and runway lights as suggested by Gilberto Agostinho

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Thorsten Renk 2015-12-29 11:53:46 +02:00
parent afec939218
commit 3dc8b32f67
1 changed files with 13 additions and 5 deletions
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18
Shaders/surface-light-ALS.frag
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@ -45,7 +45,7 @@ else
}
vec4 light_sprite (in vec2 coord, in float transmission, in float noise)
float light_sprite (in vec2 coord, in float transmission, in float noise)
{
coord.s = coord.s - 0.5;
@ -66,10 +66,14 @@ else
{ray = clamp(pow(sinterm,10.0),0.0,1.0);}
float fogEffect = (1.0-smoothstep(0.4,0.8,transmission));
float halo = 0.2 * exp(-10.0 * r * r);
float base = exp(-80.0*r*r);
ray *= exp(-40.0 * r * r);
float intensity = clamp(ray * exp(-40.0 * r * r) + exp(-80.0*r*r),0.0,1.0) + 0.1 * fogEffect * (1.0-smoothstep(0.3, 0.6,r));
float intensity = clamp(ray + base + halo,0.0,1.0) + 0.1 * fogEffect * (1.0-smoothstep(0.3, 0.6,r));
return vec4 (1.0,1.0,1.0,1.0) * intensity;
return intensity;
//return vec4 (1.0,1.0,1.0,1.0) * intensity;
}
@ -155,8 +159,12 @@ void main()
float dist_att = exp(-dist/200.0/size/attenuationScale);
//vec4 texel = texture2D(texture,gl_TexCoord[0].st);
vec4 texel = light_sprite(gl_TexCoord[0].st,transmission, noise);
gl_FragColor = vec4 (clamp(gl_Color.rgb,0.0,1.0), texel.a * transmission * dist_att);
//vec4 texel = light_sprite(gl_TexCoord[0].st,transmission, noise);
float intensity = light_sprite(gl_TexCoord[0].st,transmission, noise);
vec3 light_color = gl_Color.rgb;
light_color = mix(light_color, vec3 (1.0, 1.0, 1.0), intensity * intensity);
gl_FragColor = vec4 (clamp(light_color.rgb,0.0,1.0), intensity * transmission * dist_att);
}