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3D Graphics: Ray tracing

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Dodge Viper object at... Light sources at ... Camera at ... Tracing light 'in reverse' ... Dodge Viper object at... Light sources at ... Camera at ... – PowerPoint PPT presentation

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Title: 3D Graphics: Ray tracing


1
3D Graphics Ray tracing
  • Radu Berinde

Many slides borrowed from MIT 6.837 lecture
slides, by Cutler and Durand
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Movies
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Games
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Simulation
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CAD-CAM Design
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Medical Imaging
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Architecture
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Scene description
  • Shiny Red-Black checkered plane at y -400
  • Yellow shiny sphere of radius 150 at ltx,y,zgt
    lt650, -250, 200gt
  • Orange transparent box at
  • Dodge Viper object at
  • Light sources at
  • Camera at

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Tracing light in reverse
  • Start from the viewer
  • Trace a ray through each small square, see which
    object it intersects

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Lighting
  • Mathematical models to compute realistic lighting
    at a given point on an object

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Lighting
  • We can incorporate lighting in our method

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Shadows
  • Trace rays to light source to check if the path
    is clear

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Reflections
  • Trace reflection rays to get reflected color

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Transparency
  • Trace refracted rays to get color behind object

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Scene description
  • Shiny Red-Black checkered plane at y -400
  • Yellow shiny sphere of radius 150 at ltx,y,zgt
    lt650, -250, 200gt
  • Orange transparent box at
  • Dodge Viper object at
  • Light sources at
  • Camera at

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"Christmas Baubles" by Jaime Vives Piqueres
(2005)
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"Distant Shores" by Christoph Gerber (2003)
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"Evening at the River" by Christoph Gerber (2002
and 2004)
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"Glasses" by Gilles Tran (2006)
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