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NPR & Screen Effects

NPR & Screen Effects. Renguo Feng. Non-photorealistic rendering. C artoon rendering can enhance the atmosphere of some types of games when you want to impart a cartoonish feel. Cartoon rendering.

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NPR & Screen Effects

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  1. NPR & Screen Effects RenguoFeng

  2. Non-photorealistic rendering Cartoon renderingcan enhance the atmosphere of some types of games when you want to impart a cartoonish feel.

  3. Cartoon rendering • Step 1. the meshes are shaded using exactly three shading intensities (bright, medium, dark) and the transition between them is abrupt. • Step 2. Cartoon drawings also typically have their silhouette edges outlined. • Both steps require their own shaders.

  4. Cartoon rendering

  5. Difficulties • To outline the silhouette edges， I represent an edgeof a mesh as a quad. • The problems in generating adjacency arrays for some complex models. quad from an edge triangle

  6. Screen Special Effects • Render scene to a temporary texture, and then use a special shader to manipulate the result before presenting onto screen. • Black and White, Old Film • Gaussian Filter & Blur & Motion Blur • Shader Development Tool

  7. Black and White, Old Time Movie

  8. Blur & Sharpen

  9. Distortion(heat haze effect)

  10. Progress & Difficulties & Future Work • Part of codes for post processes • Many shaders, test variables • DOF, Motion Blur ……

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