Original Post
My program I am working on will only display one texture. I have a height mapped land; the land is to be textured according to the height of the area being textured. It builds fine, but when it runs it only displays one texture. If anyone could help me out I would be grateful. Here is my code I believe is the problem. I am using C++ and OpenGL. sorry most of the comments are to myself so they may not make sense.
[for(X = 0; X< (MAP_SIZE-STEP_SIZE); X+= STEP_SIZE)
for(Y = 0; Y<(MAP_SIZE-STEP_SIZE); Y+= STEP_SIZE)
{
x = X; //initialize for the quad
y = Height(pHeightMap, X, Y);
z = Y;
if((Height(pHeightMap, x, y) / 256.0f) <= .55) //assign texture[1] to lower then .55
{
glBindTexture(GL_TEXTURE_2D, texture[1]); //select the final ground texture
}
else
if((Height(pHeightMap, x, y) / 256.0f) > .55 && (Height(pHeightMap, x, y) / 256.0f) <= .8) //assign texture[0] between .55 and .8
{
glBindTexture(GL_TEXTURE_2D, texture[0]); //select the final vertical texture will change to allow different textures
}
else
if((Height(pHeightMap, x, y) / 256.0f) > .8) //will assign a future texture
{
glBindTexture(GL_TEXTURE_2D, texture[0]); //select the final ground texture
}
glBegin(GL_QUADS); //what we render
//get the coords for bottom left
x = X;
y = Height(pHeightMap, X, Y);
z = Y;
glTexCoord2f(0.0f, 0.0f); glVertex3i(x, y, z); //Sends this vertex to be rendered
//get the coords for TOP left
x = X;
y = Height(pHeightMap, X, Y + STEP_SIZE);
z = Y+STEP_SIZE;
glTexCoord2f(0.0f, 1.0f); glVertex3i(x, y, z); //Sends this vertex to be rendered
//get the coords for TOP RIGHT
x = X+ STEP_SIZE;
y = Height(pHeightMap, X+ STEP_SIZE, Y+ STEP_SIZE);
z = Y+ STEP_SIZE;
glTexCoord2f(1.0f, 1.0f); glVertex3i(x, y, z); //Sends this vertex to be rendered
//get the coords for bottom RIGHT
x = X+ STEP_SIZE;
y = Height(pHeightMap, X+ STEP_SIZE, Y);
z = Y;
glTexCoord2f(1.0f, 0.0f); glVertex3i(x, y, z); //Sends this vertex to be rendered
}
glEnd();]
