This uses a custom library, but the calls to set things like texture coordinates are pretty obvious: http://code.google.com/p/skylight1/source/browse/trunk/Skylight1Demos/OpenGL/TankedActivity/src/skylight1/opengl/tanked/TankedGLRenderer.java#162
It is changing the texture coordinates like it does because all the various rotations are little images in the same texture and it is deciding which to use: http://skylight1.googlecode.com/svn/trunk/Skylight1Demos/OpenGL/TankedActivity/res/drawable/tank.PNG This is a 2D demo, so it rotates by picking different images to use from a sprite sheet. A 3D version would use a geometry that looked more like an actual tank and actually rotate it. This uses a pair of triangles making up a square. Just rotating the square in this wouldn't look right because each sprite was drawn with a perspective and built-in lighting coming from a certain direction. On Apr 14, 11:56 pm, kirti kaul <kirti.k...@wipro.com> wrote: > Thanks,can you give me an example/Snippet on how to use Atlas Texture > in openGL ES? > > On Apr 13, 4:08 pm, Lance Nanek <lna...@gmail.com> wrote: > > > Put all the images needed for texturing all the faces into a single > > texture. Then refer to coordinates inside the texture to use different > > parts of it in different places. This is called an atlas texture. I > > suppose it is also possible to draw the different parts in separate > > draw calls with a different texture object bound, or to use a second > > texture unit at the same time. > > > On Apr 12, 1:15 am,kirtikaul <kirti.k...@wipro.com> wrote: > > > > Hello, > > > > Can anybody tell me how to apply apply different textures on different > > > faces of acylinder?I am able to apply one texture which covers the > > > wholecylinder.But I want one texture for each face. > > > > Thanks in advance!!!- Hide quoted text - > > > - Show quoted text - > > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
