private void RenderHS()
{
int width = (int)image2.Width;
int height = (int)image2.Height;
byte[] pixels = new byte[4 * height * width];
WriteableBitmap writeableBitmap = new WriteableBitmap(width, height, 96, 96, PixelFormats.Bgra32, null);
int p = 0;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
float floatx = (float)x / (float)(width - 1);
float floaty = (float)y / (float)(height - 1);
HSLColour hslcol = new HSLColour(floatx, floaty, _HSLColour._L);
Colour col = hslcol.GetColour();
col.Clamp(0, 1);
pixels[p * 4] = (byte)(col._Blue * 255.99f);
pixels[p * 4 + 1] = (byte)(col._Green * 255.99f);
pixels[p * 4 + 2] = (byte)(col._Red * 255.99f);
pixels[p * 4 + 3] = 255;
p++;
}
}
Int32Rect rect = new Int32Rect(0, 0, width, height);
writeableBitmap.WritePixels(rect, pixels, width * 4, (int)0);
image2.Source = writeableBitmap;
}
public void RenderThumb(Image image)
{
int width = (int)image.Width;
int height = (int)image.Height;
byte[] pixels = new byte[4 * height * width];
WriteableBitmap writeableBitmap = new WriteableBitmap(width, height, 96, 96, PixelFormats.Bgra32, null);
float lightPos = 0.7f;
int p = 0;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
float floatx = (float)x / (float)(width - 1);
float floaty = 1.0f - (float)y / (float)(width - 1); // deliberate width to keep aspect ratio 1:1
float dx = lightPos - floatx;
float dy = lightPos - floaty;
float dist = (float)Math.Sqrt((double)(dx * dx + dy * dy));
float highlight = (float)Math.Exp((float)(-dist) / Math.Sqrt((double)_Roughness));// (float)Math.Pow((double)dist, (double)(material._Roughness));
Colour pixelColour = _DiffuseColour + _SpecularColour * highlight;
pixelColour.Clamp(0, 1);
pixels[p * 4] = (byte)(pixelColour._Blue * 255.99f);
pixels[p * 4 + 1] = (byte)(pixelColour._Green * 255.99f);
pixels[p * 4 + 2] = (byte)(pixelColour._Red * 255.99f);
pixels[p * 4 + 3] = 255;
p++;
}
}
Int32Rect rect = new Int32Rect(0, 0, width, height);
writeableBitmap.WritePixels(rect, pixels, width * 4, (int)0);
image.Source = writeableBitmap;
}
public void RenderMaterial()
{
int width = (int)Width;
int height = (int)Height;
byte[] pixels = new byte[4 * height * width];
WriteableBitmap writeableBitmap = new WriteableBitmap(width, height, 96, 96, PixelFormats.Bgra32, null);
for (int p = 0; p < width * height; p++)
{
Colour fillColour = _Material._DiffuseColour;
fillColour.Clamp(0, 1);
pixels[p * 4] = (byte)(fillColour._Blue * 255.99f);
pixels[p * 4 + 1] = (byte)(fillColour._Green * 255.99f);
pixels[p * 4 + 2] = (byte)(fillColour._Red * 255.99f);
pixels[p * 4 + 3] = 255;
}
Int32Rect rect = new Int32Rect(0, 0, width, height);
writeableBitmap.WritePixels(rect, pixels, width * 4, (int)0);
MaterialImage.Source = writeableBitmap;
}