Changeset 1695 for GTP/trunk/Lib/Vis/Preprocessing/src/SamplingStrategy.cpp
- Timestamp:
- 10/29/06 15:20:18 (18 years ago)
- File:
-
- 1 edited
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GTP/trunk/Lib/Vis/Preprocessing/src/SamplingStrategy.cpp
r1692 r1695 151 151 } 152 152 153 154 bool ReverseObjectBasedDistribution::GenerateSample(SimpleRay &ray) const 155 { 156 Vector3 origin, direction; 157 158 mPreprocessor.mViewCellsManager->GetViewPoint(origin); 159 160 Vector3 point; 161 Vector3 normal; 162 //cout << "y"; 163 const int i = (int)RandomValue(0, (float)mPreprocessor.mObjects.size() - 0.5f); 164 165 Intersectable *object = mPreprocessor.mObjects[i]; 166 167 object->GetRandomSurfacePoint(point, normal); 168 direction = origin - point; 169 170 // $$ jb the pdf is yet not correct for all sampling methods! 171 const float c = Magnitude(direction); 172 173 if (c <= Limits::Small) 174 return false; 175 176 // $$ jb the pdf is yet not correct for all sampling methods! 177 const float pdf = 1.0f; 178 //cout << "p: " << point << " "; 179 direction *= 1.0f / c; 180 ray = SimpleRay(point, direction, pdf); 181 182 return true; 183 } 184 153 185 #if 0 154 186 bool ObjectsInteriorDistribution::GenerateSample(SimpleRay &ray) const
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