OpenGL Notes |
| Monday, 04 April 2005 08:29 | |||
The Open Toolkit Library | OpenTK - The Open Toolkit is an advanced, low-level C# library that wraps OpenGL, OpenCL and OpenAL.Repeat a texture in OpenGLWhen you want to repeat a small texture on a large quad without drawing the quads yourself.Bind to the texture as usual and make sure you aren't clamping. glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_REPEAT); glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_REPEAT); Then when drawing your geometry, for instance a quad: glBegin(GL_QUADS);<br/> glTexCoord2f(0, 0); glVertex3f(-1, -1, -0.5f);<br/> glTexCoord2f(32, 0); glVertex3f( 1, -1, -0.5f);<br/> glTexCoord2f(32, 32); glVertex3f( 1, 1, -0.5f);<br/> glTexCoord2f(0, 32); glVertex3f(-1, 1, -0.5f);<br/> glEnd();The glTexCoord2f() controls how many times the texture is repeated. Image coordinates are typically from 0 to 1 in OpenGL. So the above calls repeat the texture 32 times in both the x and y directions. Save screen to diskOpenGL - Writing the framebuffer to diskLibraries and Toolkits OpenGL for Windows by Silicon Graphics - Download ODE - Open Dynamics Engine - open source, high performance library for simulating rigid body dynamics OpenAL - Cross-Platform 3D Audio GLUT for WIN32 SDL - Simple DirectMedia Layer is a cross-platform multimedia library designed to provide low level access to audio, keyboard, mouse, joystick, 3D hardware via OpenGL, and 2D video framebuffer. OpenSceneGraph - open source C++ scene graph. The OpenGL Extension Wrangler Library GLUT OglExt - A LGPL library for accessing OpenGL extensions. GLEW: The OpenGL Extension Wrangler Library Modeling and 3d tools Blender - an open source tool for modeling, animation, etc Web Resources Image Morphing based on this work Thin Plate Spline editor - an example program in C++ NeHe OpenGL Tutorials stereo geometry in OpenGL OpenGL Redbook Samples SDL SDL - Simple DirectMedia Layer is a cross-platform multimedia library designed to provide low level access to audio, keyboard, mouse, joystick, 3D hardware via OpenGL, and 2D video framebuffer. WebGL - OpenGL in your browserWebGL - OpenGL ES 2.0 for the WebWebGL Samples/Demos and other bits at Vladimir Vukićević The Lessons | Learning WebGL - The first ten are based on the well-known NeHe OpenGL tutorials, but I’ve diverged since then. Here are the ones so far.
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| Last Updated on Friday, 10 June 2011 09:23 |