Advanced Scene Management - Computer Graphics Laboratory

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Octree – Some Discussion

• Data structure coherence

• Apply visibility culling from parents

• Split or not split ?

• Outdoor game scene ?

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Octree – Some Discussion • Data structure coherence • Apply visibility culling from parents • Split or not split ? • Outdoor game scene ? 10

Culling (1/2) • Culling means “remove from a flock” • Visibility culling • Remove the object not in view frustum • A “must” for game engine • Backface culling • Remove the polygons facing away from camera • Hardware standard • Occlusion culling • Remove the objects hidden by the others 11

Page 1 and 2: Advanced Scene Management 1
Page 3 and 4: Bounding Volume Hierarchies (BVHs)
Page 5 and 6: Axis-aligned BSP Tree 0 plane 3 pla
Page 7 and 8: Why BSP Tree ? • Quickly to ident
Page 9: Quadtree - Example 9
Page 13 and 14: BSP Implementation • A Pre-proces
Page 15 and 16: BSP Preprocessor (2/2) • Process

Advanced Scene Management - Computer Graphics Laboratory

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