Original Post
hi! a have trouble - don't work.... how a do it?... ////////////////// main for(;;) // for(int g=0;g<1000;g++) { float rad = Radiosity(i,llumels,LightmapSequencelist); if(rad<0.001 && rad!=0.0) break; } /////////////// float Radiosity(int cur,vector &vertices,LightSequence* LightmapSequencelist) { // out->Insert("Getting max radiance\n"); int max = MaxRadiance(vertices); // out->Insert("found %i\n",max); float rad = MAX(vertices[max].emitColor[0], MAX(vertices[max].emitColor[1], vertices[max].emitColor[2]) ); // out->Insert( "Distributing energy\n"); DistributeEnergy(cur,max, vertices,LightmapSequencelist); //cout << "Calculating color" << endl; //CalcColors(Polygoner, vertices); // max = MaxRadiance(vertices); return rad; } #define MAX(a,b) a>b?a:b int MaxRadiance(vector &polygons) { int index = 0; int maxindex = 0; int vecsize = polygons.size(); float brightestEmission = 0.0f; vec3_t zero={0,0,0}; for(index = 0; index < vecsize; index++) { Lumel *b =& polygons[index]; if(VectorIdent(b->emitColor,zero,3)) continue; float thisEmission = b->emitColor[0]+b->emitColor[1]+ b->emitColor[2]; if( thisEmission > brightestEmission) { brightestEmission=thisEmission; maxindex = index; } } //cout << max.length() << endl; // VectorSet(polygons[maxindex].color,255,0,0); return maxindex; } void DistributeEnergy(int cur,int index, vector &polygons, LightSequence* LightmapSequencelist) { Lumel *I = &polygons[index]; int vecsize = polygons.size(); Lightmap *l; for( int i = 0; i; l=&LightmapSequencelist[J->lightmapid].lightmaplist[0]; Shader *s=world->materials.GetShader(l->original_polygon_materialnum); //Determine all the form factors float Fij=FormFactor(I,J); if( Fij<=0.0f ) continue; vec3_t ncol={ //(s->surfaceColor[0]/255.0f), //(s->surfaceColor[1]/255.0f), //(s->surfaceColor[2]/255.0f) 1,1,1 }; // The energy received J->color[0]+=ncol[0]*I->emitColor[0]*Fij;//*(I->original_area/J->original_area); J->color[1]+=ncol[1]*I->emitColor[1]*Fij;//*(I->original_area/J->original_area); J->color[2]+=ncol[2]*I->emitColor[2]*Fij;//*(I->original_area/J->original_area); J->emitColor[0]+=ncol[0]*I->emitColor[0]*Fij; J->emitColor[1]+=ncol[1]*I->emitColor[1]*Fij; J->emitColor[2]+=ncol[2]*I->emitColor[2]*Fij; // J->color[0]=fabs(Expose(J->color[0],10)); // J->color[1]=fabs(Expose(J->color[1],10)); // J->color[2]=fabs(Expose(J->color[2],10)); // J->emitColor[0]=fabs(Expose(J->emitColor[0],10)); // J->emitColor[1]=fabs(Expose(J->emitColor[1],10)); // J->emitColor[2]=fabs(Expose(J->emitColor[2],10)); // float t=1; // VectorScale(J->color,t,J->color); // VectorScale(J->emitColor,t,J->emitColor); // ClampColor(J->color,255); // ClampColor(J->emitColor,255); // VectorPrint(J->color,3); } } VectorClear(I->emitColor); // float d=0.01; // I->emitColor[0]-=d; // I->emitColor[1]-=d; // I->emitColor[2]-=d; return; } float FormFactor(Lumel *sample1,Lumel *sample2) { float ffactor, dist, angle1, angle2; float dir[3]; // âûõîäèì åñëè ïåðâûé ýëåìåíò óæå "ïîãàñ" if (!sample1->enabled) return 0; if (DotProduct(sample1->norm,sample2->norm) > 0.009f) return 0; // âåêòîð îò ïåðâîãî ýëåìåíòà êî âòîðîìó VectorSub (sample2->pos, sample1->pos, dir); dist = VectorLength (dir); VectorNormalize (dir); // êîñèíóñ óãëà ìåæäó íîðìàëüþ ïåðâîãî ýëåìåíòà è ëó÷îì angle1 = DotProduct (dir, sample1->norm); // âåêòîð îò âòîðîãî ýëåìåíòà ê ïåðâîìó VectorNegateAB(dir,dir); angle2 = DotProduct (dir, sample2->norm); if( angle1 <= 0.0|| angle2 <= 0.0|| dist <= 0.01 ) return 0; //ffactor = angle1 * angle2 * acos(angle2) / (PI * dist * dist + acos(angle2)); ffactor =(( angle1 * angle2) / (PI * dist * dist))*(sample2->original_area/sample1->original_area); // if(ffactor<0) ffactor=-ffactor; return ffactor; } i work with lightmaps! and i have lumels instahead patches! every lumel have area,which calculate from lightmap grid area! For the beginning - here all is correct?