201707 SER332 Lecture 14
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The document discusses a lecture on mesh data structures. It introduces meshes as a way to represent geometric objects as finite triangular elements for computational modeling. It then defines a C++ struct for a mesh data structure containing vectors of vertex positions, normals, texture coordinates, and indices to associate this data per triangle. Homework involves using a vector library and C++ standard template library.
201707 SER332 Lecture 14
- 1. SER332 Introduction to Graphics and Game Development Lecture 14: Mesh Data Structure Javier Gonzalez-Sanchez javiergs@asu.edu PERALTA 230U Office Hours: By appointment
- 2. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 2 Midterm 0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 100.00 1 2 3 4 5 6 7 8 9 10 11 algebra circle OBJfile lookAt viewports displaylists
- 3. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 3 Project 3 1 0 2 0 1 0 0 1
- 5. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 5 Definition Mesh represent (a geometric object) as a set of finite elements (triangles) for computational modeling.
- 6. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 6 Mesh Data Structure typedef Vec3<float> Vec3f; typedef Vec2<float> Vec2f; struct Mesh { vector<Vec3f> vertice_xyz; // array of vertices vector<Vec3f> normal_xyz; // array of normals // array of texture coordinates; assume using 2d textures vector<Vec2f> texture_xy; vector<int> vertex_index; // vertex indices vector<int> normal_index; // normal indices vector<int> texture_index; // texcoord indices };
- 7. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 7 Homework • Vector Library (Ilmbase) • C++ Standard Template Library
- 8. SER332 Introduction to Graphics Javier Gonzalez-Sanchez javiergs@asu.edu Spring 2017 Disclaimer. These slides can only be used as study material for the class SER332 at ASU. They cannot be distributed or used for another purpose.