Hello everybody,
I have a problem mapping a texture on a heightmap. I've checked previous threads refering to texture problems but i've found nothing that helped solving my problem, so here i go:
As i said, i have a heightmap loaded from a .raw file, and drawn as a set of quads in opengl. I want to map a single texture on the whole terrain, and not just repeating it on every quad, so, i apply a factor before doing the glTexCoord2f. Here goes a bit of the code:
//Loading the texture
GLuint g_texture;
glEnable(GL_TEXTURE_2D);
glGenTextures(1, &g_texture);
glBindTexture(GL_TEXTURE_2D, g_texture);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGB, width, height, GL_RGB,GL_UNSIGNED_BYTE, data);
//and before drawing each of the four gl_quad vertexs:
textX=(float)x/(float)MAP_SIZE;
textY=(float)Height(X,Y)/(float)MAP_SIZE;
glTexCoord2f(textX, textY);
glVertex3i(x, y, -z);
The problem is, as you can see on the screenshots below, the texture stretches in the central part of the heightmap and i can't figure why. I also link a pic of the heightmap without texture and the .png texture itself.
Any help would we appreciated
Thanks
