PPT-An Interactive Introduction to OpenGL Programming

Dave Shreiner Ed Angel Vicki Shreiner 2 What Youll See Today General OpenGL Introduction Rendering Primitives Rendering Modes Lighting Texture Mapping Additional Rendering Attributes Imaging. Graphics with OpenGL/GLUT What is OpenGL? • OpenGL ( Open G raphics L ibrary) • A software interface to graphics hardware • a standard specification defining a cross - language, c Interactive. 2D and 3D. Computer Graphics. Interactive Computer Graphics. Chapter 1 - . 2. This Class. Interactive 2D and 3D Graphics Programming. (with a taste of photorealistic graphics, image processing, and modeling). Graphics Programming. Katia Oleinik: koleinik@bu.edu. Graphics Programming. OpenGL. Low-level API. cross-language . cross-platform . 2D, 3D computer graphics. GLUT - The OpenGL Utility Toolkit. simple, easy and small. M. . Ramanathan. STTP CAD 2011. Introduction to OpenGL. What Is OpenGL?. Graphics rendering API. high-quality color images composed of geometric and image primitives. window system independent. operating system independent. (in C++). Subprograms:. procedures and functions. Jordi. . Cortadella. , . Ricard. . Gavaldà. , Fernando . Orejas. Dept. of Computer Science, UPC. Subprograms. Programming languages, in particular C++, not only provide a set of basic operations and statements, but also a means to define . 2. Basic Stragegy. Three steps to applying a texture. specify the texture. read or generate image. assign to texture. enable texturing. assign texture coordinates to vertices. Proper mapping function is left to application. Lecture 12 – OpenGL. JJCAO. OpenGL Applications. Modelling. & Creative Content Creation. Modelling. , Animation, Video & Creative Content Creation . applications that . use OpenGL. CAD. CAD/CAM. Computer Graphics. Interactive Computer Graphics. Chapter 1 - . 2. This Class. Interactive 2D and 3D Graphics Programming. (with a taste of photorealistic graphics, image processing, and modeling). Top-down approach. Oct. . 26th. , . 2016. CIS 441/541:. Introduction . to Computer . Graphics. Lecture . 14: . OpenGL Basics. Announcements. . OH. Hank. :. Weds 1-2, Thursday 11-12. Dan: Weds 4-530, Thursday 930-11. It is . NOT. a . programming language. .. It . is a Graphics Rendering . API. . consisting of a . set of . functions . with . a well . defined interface.. Whenever . we say that a program is OpenGL-based or OpenGL applications, we mean that it is written in some programming language (such as C/C or Java) that makes calls to one or more of OpenGL libraries. Department of Geography and Planning. University at Albany. What is a GPU?. A GPU is a . graphics processing unit. Modern GPUs are composed of multiple processors. Each of these processors can perform operations similar to those of CPUs. What You’ll see. Interactive. 3D computer graphics. Real-time. 2D, but mostly 3D. OpenGL. C/C (if you don’t know them). The math behind the scenes. Shaders. Simple . and not-so-simple 3D . file . Ed Angel. University of New Mexico. Dave . Shreiner. ARM, Inc. Evolution of the OpenGL Pipeline. A Prototype Application in OpenGL. OpenGL Shading Language (GLSL). Vertex Shaders. Fragment Shaders. Examples. Katia Oleinik: koleinik@bu.edu. Graphics Programming. OpenGL. Low-level API. cross-language . cross-platform . 2D, 3D computer graphics. GLUT - The OpenGL Utility Toolkit. simple, easy and small. window system independent toolkit for writing OpenGL programs;.