public Image(String path)
{
if (!System.IO.File.Exists(path))
{
Console.Error.Write("File not found:" + path);
return;
}
_path = path;
_id = TexUtil.CreateTextureFromFile(path, out _width, out _height);
color = new Color4(255, 255, 255, 255);
}
/// <summary>
/// [Re-]generate the terrain data.
/// </summary>
/// <param name="iterations">Number of subdivision iteratons.</param>
/// <param name="roughness">Roughness parameter.</param>
/// <param name="param">Optional text parameter.</param>
private void Regenerate(int iterations, float roughness, string param)
{
// !!!{{ TODO: add terrain regeneration code here (to reflect the given terrain parameters)
scene.Reset();
// dummy rectangle, facing to the camera
// notice that your terrain is supposed to be placed
// in the XZ plane (elevation increases along the positive Y axis)
scene.AddVertex(new Vector3(-0.5f, roughness, -0.5f)); // 0
scene.AddVertex(new Vector3(-0.5f, 0.0f, +0.5f)); // 1
scene.AddVertex(new Vector3(+0.5f, 0.0f, -0.5f)); // 2
scene.AddVertex(new Vector3(+0.5f, 0.0f, +0.5f)); // 3
scene.SetNormal(0, (Vector3.UnitY + roughness * (Vector3.UnitX + Vector3.UnitZ)).Normalized());
scene.SetNormal(1, (Vector3.UnitY + roughness * 0.5f * (Vector3.UnitX + Vector3.UnitZ)).Normalized());
scene.SetNormal(2, (Vector3.UnitY + roughness * 0.5f * (Vector3.UnitX + Vector3.UnitZ)).Normalized());
scene.SetNormal(3, Vector3.UnitY);
float txtExtreme = 1.0f + iterations;
scene.SetTxtCoord(0, new Vector2(0.0f, 0.0f));
scene.SetTxtCoord(1, new Vector2(0.0f, txtExtreme));
scene.SetTxtCoord(2, new Vector2(txtExtreme, 0.0f));
scene.SetTxtCoord(3, new Vector2(txtExtreme, txtExtreme));
scene.SetColor(0, Vector3.UnitX); // red
scene.SetColor(1, Vector3.UnitY); // green
scene.SetColor(2, Vector3.UnitZ); // blue
scene.SetColor(3, new Vector3(1.0f, 1.0f, 1.0f)); // white
scene.AddTriangle(1, 2, 0); // last vertex is red
scene.AddTriangle(2, 1, 3); // last vertex is white
// this function uploads the data to the graphics card
PrepareData();
// load a texture
if (textureId > 0)
{
GL.DeleteTexture(textureId);
textureId = 0;
}
textureId = TexUtil.CreateTextureFromFile("cgg256.png", "../../cgg256.png");
// simulation / hovercraft [re]initialization?
InitSimulation(false);
// !!!}}
}
