Lecture 24: slide

Interactive Computer Graphics: A Top-Down Approach Using OpenGL (4th Edition)

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1 ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Advanced Graphics Lab Class 24 November 13, 2007 ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 24– November 13, 2007 Announcements ± Meeting schedule for this week on the website ± Email me to schedule a time (first-come, first-served) ± Homework 4 out today – Simple: within XNA infrastructure load a model, apply a shader to it, do a lighting effect (e.g. bumpmapping) ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 24– November 13, 2007 Last time ± Bumpmapping ± Environment Maps ± Reflection ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 24– November 13, 2007 Today ± Cartoon shading ± Shadows! ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 24– November 13, 2007 Toon shading ± A neat look for certain kinds of games ± Cartoon-like shading in the interior of surfaces ± Black outlines at object boundaries Cel Damage Overdrive – Pseudo Interactive (2003) ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 24– November 13, 2007 Cartoon shading ± Use n l dot product as a texture coordinate to index a 1-D texture map. ± This creates quantized colors for different regions. ± You can also do this with a shader…
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2 ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 24– November 13, 2007 Cartoon shading demo ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 24– November 13, 2007 Black outlines ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 24– November 13, 2007 Shadows ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 24– November 13, 2007 Shadows are an important part of any image ± Help define the spatial relationship between objects source: artis.imag.fr ECE/CS 433 Introduction to Computer Graphics Pradeep Sen Class 24– November 13, 2007 Shadows are an important part of any image ± Help define the spatial relationship between objects ± Create “mood” for scene
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Lecture 24: slide - Announcements ECE/CS 433 Introduction...

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