Color Raytracer::RayTracing( Vector3 ray_O , Vector3 ray_V , int dep , bool refracted , int* hash, int rc, Color weight) {
if ( dep > MAX_RAYTRACING_DEP ) return Color();
if ( hash != NULL ) *hash = ( *hash * HASH_FAC ) % HASH_MOD;
Color ret;
Collider* collider = scene->FindNearestCollide(ray_O, ray_V);
LightCollider* lightCollider = scene->FindNearestLight(ray_O, ray_V);
if (lightCollider != NULL) {
Light* nearest_light = lightCollider->GetLight();
if (collider == NULL || lightCollider->dist < collider->dist) {
if ( hash != NULL ) *hash = ( *hash + nearest_light->GetSample() ) % HASH_MOD;
ret += nearest_light->GetColor() / nearest_light->GetColor().RGBMax();
}
delete lightCollider;
}
if ( collider != NULL ) {
Primitive* nearest_primitive = collider->GetPrimitive();
if ( hash != NULL ) *hash = ( *hash + nearest_primitive->GetSample() ) % HASH_MOD;
if ( nearest_primitive->GetMaterial()->diff > EPS ) ret += CalnDiffusion( collider , hash, rc, weight);
if (camera->GetAlgorithm() != "RC") {
if ( nearest_primitive->GetMaterial()->refl > EPS ) ret += CalnReflection( collider , ray_V , dep , refracted , hash, rc, weight);
if ( nearest_primitive->GetMaterial()->refr > EPS ) ret += CalnRefraction( collider , ray_V , dep , refracted , hash, rc, weight);
}
delete collider;
}
if ( dep == 1 ) ret = ret.Confine();
return ret;
}
