texture mapping

OpenGL OpenGL: Basic Coding
1

Im not sure if you have a no homework help policy or not. If so i appologize.

But yea this is my homework. We got a framework and were supposed to make cubes, rotating spheres. moving camera and textures. Right now i only have the textures left, and im not sure how to do it. And was hoping you guys could give me some pointers.

Here is the code: http://pastebin.com/ASaEQppv

2

http://www.google.com/search?q=opengl+texture+tutorial

3

Well, it looks like you have texturing set up in the LoadGLTextures() function, and to texture something you use glTexCoord3f() or some other variation, see here.

4

hmm yea, but my loadGLTextures loads several textures. i want to use building texture on the cubes. How do i specify which textures im gonna use. when using glTexCoord3f()

5

Good question. Actually, do you know why the line


glGenTextures(3, &texture[2]);

isn’t


glGenTextures(1, &texture[2]);

? Because you’re making three textures per picture. But anyway, to set which texture you’re using you use glBindTexture(GL_TEXTURE_2D, texture) where texture is a GLuint. So I guess you’d use glBindTexture(GL_TEXTURE_2D, texture[2]) for the building.

6

hmm if i understand you correct. when you call glBindTexture(GL_TEXTURE_2d, texture[1]); you’re saying to the compiler that any texture related thing after this is gonna be done on/with texture[1] ?

And thanks for helping :slight_smile:

7

Yeah, that’s basically how it works (as far as I know). I’m actually pretty new to texture and OpenGL in general (notice the “newbie” title under my name :slight_smile: ), but you can google texture in OpenGL if you’d like to know more or make sure of something.

8

Well i got textures now, but the problem is that the textures is all the same. All get the building texture. Anyone had that problem before?

http://pastebin.com/bKckWEsF

9

never mind. found the error. copy pasted wrong function :stuck_out_tongue: