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Hidden Surfaces

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HiteshJain007

Computer Graphics Topic :Hidden Surfaces

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Hidden Surface Removal 고려대학교 컴퓨터 그래픽스 연구실
3D Rendering Pipeline Model Transformation Lighting Viewing Transformation Projection Transformation Clipping Viewport Transformation Scan Conversion 3D Primitives Image 3D Modeling Coordinates 3D World Coordinates 3D World Coordinates 3D Viewing Coordinates 2D Projection Coordinates 2D Projection Coordinates 2D Device Coordinates 2D Device Coordinates Hidden Surface Removal
Hidden Surface Removal ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Motivation ,[object Object],[object Object],Viewer Back-Facing Polygon Viewer Occluding Polygon Occluded Polygon
Motivation ,[object Object],[object Object],Viewer Viewer
Algorithms ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Back-Face Detection ,[object Object],Viewer Back-Facing Polygon N V Polygon is back-facing to the viewer if V • N > 0 Model Transformation Lighting Viewing Transformation 3D Primitives
Depth Sort ,[object Object],[object Object],[object Object],Viewer View Plane Depth Sort A B C D E Viewport Transformation Scan Conversion Image
Depth Sort ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ray Casting ,[object Object],[object Object],Viewer View Plane A B C D E Model Transformation Lighting Viewing Transformation 3D Primitives
Ray Casting ,[object Object],[object Object],[object Object],[object Object]
Z-Buffer ,[object Object],[object Object],[object Object],z=3 z=1 z=2 z=4 z=5 z=5 z=5 Viewport Transformation Scan Conversion Image
Z-Buffer ,[object Object],[object Object],[object Object],[object Object],[object Object]
Scan-Line ,[object Object],[object Object],z=3 z=1 z=2 z=4 z=5 z=5 z=5 Scan Line Example: Spans z=1.8 z=3.8 z=5 z=5 Viewport Transformation Scan Conversion Image
Scan-Line ,[object Object],[object Object],[object Object],[object Object]
Area Subdivision ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Conclusion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Hidden Surfaces

  • 1. Hidden Surface Removal 고려대학교 컴퓨터 그래픽스 연구실
  • 2. 3D Rendering Pipeline Model Transformation Lighting Viewing Transformation Projection Transformation Clipping Viewport Transformation Scan Conversion 3D Primitives Image 3D Modeling Coordinates 3D World Coordinates 3D World Coordinates 3D Viewing Coordinates 2D Projection Coordinates 2D Projection Coordinates 2D Device Coordinates 2D Device Coordinates Hidden Surface Removal
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