Thread: How can i change or make my own terrain

Here is a sample terrain map that I used in my engine.

Load this as a raw file - but you will have to smooth it in a paint program or something. The JPG format causes a lot of loss and the BMP was too large to attach.

Load as a RAW file with no header. The size is 480x480 - to get along with this board's limit of 640x480.

Code:

bool Terrain::readRawFile(std::string fileName)
{

  // A height for each vertex
  std::vector<BYTE> in( _numVertices );

  std::ifstream inFile(fileName.c_str(), std::ios_base::binary);

  if( inFile == 0 )
    return false;

  inFile.read((char*)&in[0], 
                  in.size());

  inFile.close();

  // copy BYTE vector to int vector
  _heightmap.resize( _numVertices );
  for(int i = 0; i < in.size(); i++)
  _heightmap[i] = in[i];

return true;
}

That will load the raw file. NumVertices is the number of vertices in your terrain (hence if you use a 256x256 heightmap it will be 256*256)

The first jpg is height data - convert it to raw format and save.
The second jpg is the color or texture data. Simply compute the necessary u and v coords per vertex and set this as the texture.

The u and v increments will be 1/(sizex) and 1/(sizey).

Several terrain generation programs:

http://www.ridgecrest.ca.us/~jslayton/terrain.html


or simply use a paint program and convert image to greyscale. White is highest, black is lowest - paint your terrain...smooth a couple of times and wallah...terrain.