README file from "examples" directory
OpenGL Programming 1 Course -- Sample Programs This software will only compile/run on a >= 5.3 Irix system with gl_dev and x_dev products loaded. This subtree contains the software included in the OpenGL Programming 1 class course materials available through SGI's customer education program. It includes a version of the aux library (some additions over the version available with the OpenGL Programming Guide), a checkVisual utility program, and src and binaries demonstrating the following: adv_lighting Programs that demonstrate how to enable 2-sided lighting, and enable spotlights. Also, programs that show how to position the lights so that they are fixed in the scene, move with the scene, or move independently of the objects in the scene. alpha_blending Programs that demonstrate how to render transparent objects. Also, programs that demonstrate how to render objects without the "jaggies". animation Programs that demonstrate how to animate a scene without flicker. depth_buffer Programs that demonstrate how to use the depth buffer. dlists Programs that demonstrate how to put OpenGL commands in display lists to increase performance. lighting Programs that demonstrate how to enable basic lighting and set the normals. Also, programs that demonstrate how to set lighting intensities and materials properites. modeling Programs that demonstrate how to use use the basic transformations to model a scene. Also, demonstrates how the ordering of effects the net result, and how transformations can be kept independent using glPushMatrix/glPopMatrix. rendering Programs that demonstrate the basic drawing primitives, and flat and gouraud shading them. text Programs that demonstrate how to render a text string and make sure that it doesn't get clipped prematurely when the raster position goes outside the window. transformations Programs that demonstrate how to rotate, scale and translate objects, and set the projection matrix. viewing Programs that demonstrate how to use gluLookAt() or use the basic transformations to create a polarview viewing perspective. viewports Programs that demonstrate how to set the viewport and the effect of the aspect ratio. windows Programs that demonstrate how to create windows and set the background color. Two appendices are provided to help transition from IRIS GL to OpenGL. irisgl_vs_opengl Programs that demonstrate some of the differences between IRIS GL and OpenGL. porting An appendix the walks through some examples of porting IRIS GL programs to OpenGL. Includes information about writing mixed model programs, with and without using a widget set. The programs in the directories above can be invoked individually, or through the buttonfly command. In each directory, there are two menu files named 'menu_directoryname' and 'm_directoryname'. They are installed in the directory as '.menu' and '.m_directoryname', respectively. .menu specifies a button for the directory and .m_directoryname contains the information about how to run each program. To use the buttonfly program, run the RUN_DEMOS script in the opengl1 home directory. % ~opengl1/RUN_DEMOS
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