03_graphics_4

03_graphics_4 - Introduction CS 53000 Introduction to...

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Computer Graphics Primer CS 53000 Introduction to Scientifc Visualization September 3, 2009 CS 53000 - Introduction to Scientifc Visualization - 09/03/2009 Introduction Visualization methods transForm data into primitives that are rendered using CG techniques This is not a CG class! Goal: understand basic principles oF CG necessary to properly manipulate a visualization library like VTK CS 53000 - Introduction to Scientifc Visualization - 09/03/2009 Outline Graphics Primitives Colors Shading Rasterization Projections and Cameras ±undamental Algorithms CS 53000 - Introduction to Scientifc Visualization - 09/03/2009 Graphics Primitives Points 2D, 3D coordinates 0-dimensional objects
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CS 53000 - Introduction to Scientifc Visualization - 09/03/2009 Graphics Primitives Lines 1-dimensional objects Polygonal description ( ”polyline” ) piecewise linear CS 53000 - Introduction to Scientifc Visualization - 09/03/2009 Graphics Primitives Lines 1-dimensional objects Parametric description E.g. splines P : t I ±→ P ( t ) IR n P ( t ) CS 53000 - Introduction to Scientifc Visualization - 09/03/2009 Graphics Primitives SurFaces 2-dimensional objects Polygonal description typically: triangle mesh (piecewise linear) CS 53000 - Introduction to Scientifc Visualization - 09/03/2009 Graphics Primitives SurFaces 2-dimensional objects Polygonal description Important topologies (special cases) 1 2 3 4 5 6 7 8 triangle Fan triangle strip quad strip
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CS 53000 - Introduction to Scientifc Visualization - 09/03/2009 Graphics Primitives SurFaces 2-dimensional objects Parametric description bi-quadratic, bi-cubic, Bezier, splines, NURBS. .. P :( u, v ) I × J ±→ P ( u, v ) IR n CS 53000 - Introduction to Scientifc Visualization - 09/03/2009 Primitive Attributes Color Normal Opacity Texture coordinates ... CS 53000 - Introduction to Scientifc Visualization - 09/03/2009 Outline Graphics Primitives Colors Shading Rasterization Projections and Cameras ±undamental Algorithms CS 53000 - Introduction to Scientifc Visualization - 09/03/2009
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03_graphics_4 - Introduction CS 53000 Introduction to...

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