public override float GetValue(Vector3 position)
{
return(Output(module1.GetValue(position) / module2.GetValue(position)));
}
public static Texture2D Generate(int texwidth, ModuleBase module)
{
// measure execution time
System.DateTime startTime = System.DateTime.UtcNow;
// creates a rectangular heightmap with "distorted" poles from the planet, texture height is calculated from width
int texheight = texwidth / 2, ty, tx;
Texture2D tex = new Texture2D(texwidth, texheight, TextureFormat.ARGB32, false);
Color32[] colors = new Color32[texwidth * texheight];
float x, y, z, polar, azimut, onebyty, onebytx, halfx, halfy, sinpolar, cospolar;
onebytx = 1.0f / (float)texwidth; // onebytx/y is an optimization to prevent recurring divisions
onebyty = 1.0f / (float)texheight;
halfx = onebytx * 0.5f; // halfx/y is the width/height of a half pixel to calculate the midpoint of a pixel
halfy = onebyty * 0.5f;
for (ty = 0; ty < texheight; ++ty) {// calculate the 3d position of each pixel on the surface of a normalized sphere (radius 1)
// description of spherical coordinate system (polar + azimut) can be found here: http://upload.wikimedia.org/wikipedia/commons/8/82/Sphericalcoordinates.svg and here http://en.wikipedia.org/wiki/Spherical_coordinate_system
polar = ( (float)ty * onebyty + halfy ) * Mathf.PI; // calculate the polar angle (between positive y in unity (northpole) and the line to the point in space), required in radians 0 to pi
sinpolar = Mathf.Sin ( polar ); // cache these values as they are the same for each column in the next line
cospolar = Mathf.Cos ( polar );
for (tx = 0; tx < texwidth; ++tx) {
azimut = ( ( ( (float)(tx+texwidth/4) * onebytx + halfx ) * 2.0f ) - 1.0f ) * Mathf.PI; // calculate the azimut angle (between positive x axis and the line to the point in space), required in radians -pi to +pi,
x = sinpolar * Mathf.Cos ( azimut );
z = sinpolar * Mathf.Sin ( azimut );// this is y in the wikipedia formula but because unitys axis are differerent (y and z swapped) its changed here
y = cospolar;// this is z in the wikipedia formula but because unitys axis are differerent (y and z swapped) its changed here
Vector3 position = new Vector3(x, y, z);
Color32 color;
if(module.colorOutput)
color = module.GetColor(position); // retrieve the height on the actual planet surface by passing the normalized position to the terrain module
else {
float value = (module.GetValue(position) + 1f) / 2f;
color = new Color(value, value, value);
}
colors[(texheight - ty - 1) * texwidth + tx] = color;
//tex.SetPixel(tx, texheight - ty - 1,new Color(height,height,height)); // the y direction needs to be reversed to match unity up (+y) equals texture up, otherwise the texture is y-reversed compared with the planet (maybe due to v-definition)
}
}
tex.SetPixels32(colors);
tex.Apply(); // apply the texture to make the changes persistent
Debug.Log("Global map generated in " + (float)(System.DateTime.UtcNow - startTime).TotalSeconds * 1000f + "ms");
return tex;
/*string fileName = "Planetary_MiniMap.png";
byte[] bytes = tex.EncodeToPNG();
System.IO.FileStream fs = new System.IO.FileStream(fileName, System.IO.FileMode.Create);
System.IO.BinaryWriter bw = new System.IO.BinaryWriter(fs);
bw.Write(bytes);
bw.Close();
fs.Close();*/
// exiguous ***************************************************************************************************
// exiguous ***************************************************************************************************
}
public override float GetValue(Vector3 position)
{
return(Output((range - Mathf.Min(Mathf.Abs(module1.GetValue(position) - target), range)) / range));
}
public override float GetValue(Vector3 position)
{
return(Output(Mathf.Lerp(module1.GetValue(position), target, weight)));
}
/// <summary>
/// Generates a preview texture
/// </summary>
private Texture2D Generate(int size)
{
Texture2D texture = new Texture2D(size, size, TextureFormat.ARGB32, false);
Color[] colors = new Color[size * size];
// get module from the node
module = node.GetModule();
// check that node is not null
if(module != null) {
node.minValue = Mathf.Infinity;
node.maxValue = Mathf.NegativeInfinity;
for(int y = 0; y < size; y++) {
for(int x = 0; x < size; x++) {
Vector3 position = new Vector3((x / (float)size) * zoom + tx, 0f, (y / (float)size) * zoom + ty);
if(module.colorOutput) {
colors[y * size + x] = module.GetColor(position);
}
else {
float value = module.GetValue(position);
if(value < node.minValue)
node.minValue = value;
if(value > node.maxValue)
node.maxValue = value;
value = (value + 1f) / 2f;
colors[y * size + x] = new Color(value, value, value);
}
}
}
node.SetOutputOptions();
texture.SetPixels(colors);
texture.Apply();
}
return texture;
}
public static Texture2D Generate(int texwidth, ModuleBase module)
{
// measure execution time
System.DateTime startTime = System.DateTime.UtcNow;
// creates a rectangular heightmap with "distorted" poles from the planet, texture height is calculated from width
int texheight = texwidth / 2, ty, tx;
Texture2D tex = new Texture2D(texwidth, texheight, TextureFormat.ARGB32, false);
Color32[] colors = new Color32[texwidth * texheight];
float x, y, z, polar, azimut, onebyty, onebytx, halfx, halfy, sinpolar, cospolar;
onebytx = 1.0f / (float)texwidth; // onebytx/y is an optimization to prevent recurring divisions
onebyty = 1.0f / (float)texheight;
halfx = onebytx * 0.5f; // halfx/y is the width/height of a half pixel to calculate the midpoint of a pixel
halfy = onebyty * 0.5f;
for (ty = 0; ty < texheight; ++ty) // calculate the 3d position of each pixel on the surface of a normalized sphere (radius 1)
// description of spherical coordinate system (polar + azimut) can be found here: http://upload.wikimedia.org/wikipedia/commons/8/82/Sphericalcoordinates.svg and here http://en.wikipedia.org/wiki/Spherical_coordinate_system
{
polar = ((float)ty * onebyty + halfy) * Mathf.PI; // calculate the polar angle (between positive y in unity (northpole) and the line to the point in space), required in radians 0 to pi
sinpolar = Mathf.Sin(polar); // cache these values as they are the same for each column in the next line
cospolar = Mathf.Cos(polar);
for (tx = 0; tx < texwidth; ++tx)
{
azimut = ((((float)(tx + texwidth / 4) * onebytx + halfx) * 2.0f) - 1.0f) * Mathf.PI; // calculate the azimut angle (between positive x axis and the line to the point in space), required in radians -pi to +pi,
x = sinpolar * Mathf.Cos(azimut);
z = sinpolar * Mathf.Sin(azimut); // this is y in the wikipedia formula but because unitys axis are differerent (y and z swapped) its changed here
y = cospolar; // this is z in the wikipedia formula but because unitys axis are differerent (y and z swapped) its changed here
Vector3 position = new Vector3(x, y, z);
Color32 color;
if (module.colorOutput)
{
color = module.GetColor(position); // retrieve the height on the actual planet surface by passing the normalized position to the terrain module
}
else
{
float value = (module.GetValue(position) + 1f) / 2f;
color = new Color(value, value, value);
}
colors[(texheight - ty - 1) * texwidth + tx] = color;
//tex.SetPixel(tx, texheight - ty - 1,new Color(height,height,height)); // the y direction needs to be reversed to match unity up (+y) equals texture up, otherwise the texture is y-reversed compared with the planet (maybe due to v-definition)
}
}
tex.SetPixels32(colors);
tex.Apply(); // apply the texture to make the changes persistent
Debug.Log("Global map generated in " + (float)(System.DateTime.UtcNow - startTime).TotalSeconds * 1000f + "ms");
return(tex);
/*string fileName = "Planetary_MiniMap.png";
* byte[] bytes = tex.EncodeToPNG();
* System.IO.FileStream fs = new System.IO.FileStream(fileName, System.IO.FileMode.Create);
* System.IO.BinaryWriter bw = new System.IO.BinaryWriter(fs);
* bw.Write(bytes);
* bw.Close();
* fs.Close();*/
// exiguous ***************************************************************************************************
// exiguous ***************************************************************************************************
}
public override float GetValue(Vector3 position)
{
return(Output(Mathf.Clamp(module1.GetValue(position), min, max)));
}
public override float GetValue(Vector3 position)
{
return(Output(Mathf.Pow(module1.GetValue(position), exponent)));
}
public override float GetValue(Vector3 position)
{
return(Output((module2.GetValue(position) - module1.GetValue(position)) * ((module3.GetValue(position) + 1f) / 2f) + module1.GetValue(position)));
}