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Some procedural road lightmapping code, currently inactive

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Thorsten Renk 2017-03-05 15:05:12 +02:00
parent e503971ab1
commit 0349a7ca97
1 changed files with 51 additions and 0 deletions
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51
Shaders/road-ALS-ultra.frag
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@ -104,6 +104,7 @@ float rayleigh_in_func(in float dist, in float air_pollution, in float avisibili
float alt_factor(in float eye_alt, in float vertex_alt);
float light_distance_fading(in float dist);
float fog_backscatter(in float avisibility);
float rand2D(in vec2 co);
vec3 rayleigh_out_shift(in vec3 color, in float outscatter);
vec3 get_hazeColor(in float lightArg);
@ -468,6 +469,56 @@ void main (void)
// END lightmap
/////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////
// BEGIN procedural lightmap
//////////////////////////////////////////////////////////////////////
if (0==1)
{
vec2 roadCoords = gl_TexCoord[0].st;
roadCoords.s *=8.0;
roadCoords.s = fract(roadCoords.s);
vec3 pLMColor = vec3 (0.941, 0.682, 0.086);
float pLMIntensity = smoothstep(0.0, 0.4, roadCoords.s) * (1.0 - smoothstep(0.6, 1.0, roadCoords.s));
pLMIntensity = 0.5 + 0.1 * max(0.0,sin(4.0 * roadCoords.t));
pLMColor *= pLMIntensity;
float cSign = 1.0;
if (roadCoords.s > 0.5) {cSign = -1.0;}
roadCoords.t += 0.2 * osg_SimulationTime * cSign;
float cTag = fract(roadCoords.t * 10.0);
float cDomain = roadCoords.t * 10.0 - cTag;
float cRnd = rand2D(vec2 (0.1 * cDomain, 1.0));
float cPresent = 0.0;
if (cRnd > 0.8) {cPresent = 1.0;}
vec3 pCLColor = vec3 (0.95, 1.0, 1.0);
float pCLIntensity = smoothstep(0.2, 0.5, cTag) * (1.0-smoothstep(0.5, 0.7, cTag));
float laneFact = smoothstep(0.25, 0.3, roadCoords.s) * (1.0-smoothstep(0.3, 0.35, roadCoords.s));
laneFact += smoothstep(0.35, 0.4, roadCoords.s) * (1.0-smoothstep(0.4, 0.45, roadCoords.s));
laneFact += smoothstep(0.65, 0.7, roadCoords.s) * (1.0-smoothstep(0.7, 0.75, roadCoords.s));
laneFact += smoothstep(0.75, 0.8, roadCoords.s) * (1.0-smoothstep(0.8, 0.85, roadCoords.s));
pCLIntensity = pCLIntensity * laneFact * cPresent;
pCLColor = pCLColor *= pCLIntensity;
pLMColor = pLMColor + pCLColor;
fragColor.rgb = max(fragColor.rgb, pLMColor * gl_FrontMaterial.diffuse.rgb * smoothstep(0.0, 1.0, mixedcolor*.5 + pLMColor*.5));
}
//////////////////////////////////////////////////////////////////////
// END procedural lightmap
//////////////////////////////////////////////////////////////////////
/// BEGIN fog amount