public static Texture Create(int width, int height, PixelInternalFormat internalFormat = PixelInternalFormat.Rgba8
, PixelFormat inputPixelFormat = PixelFormat.Rgba, PixelType type = PixelType.UnsignedByte)
{
var texture = new Texture();
//create empty texture of given size
texture.LoadPixels(IntPtr.Zero, width, height, internalFormat, inputPixelFormat, type);
//set default parameters for filtering and clamping
texture.FilterBilinear();
texture.WrapMode(TextureWrapMode.Repeat);
return texture;
}
public static Texture FromBitmap(Bitmap bitmap)
{
Texture texture = new Texture();
texture.FilterTrilinear();
texture.BeginUse();
//todo: 16bit channels
using (Bitmap bmp = new Bitmap(bitmap))
{
bmp.RotateFlip(RotateFlipType.RotateNoneFlipY);
BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadOnly, bmp.PixelFormat);
PixelInternalFormat internalFormat = selectInternalPixelFormat(bmp.PixelFormat);
OpenTK.Graphics.OpenGL.PixelFormat inputPixelFormat = selectInputPixelFormat(bmp.PixelFormat);
texture.LoadPixels(bmpData.Scan0, bmpData.Width, bmpData.Height, internalFormat, inputPixelFormat, PixelType.UnsignedByte);
bmp.UnlockBits(bmpData);
}
texture.EndUse();
return texture;
}
public static Texture FromBitmap(Bitmap bitmap)
{
Texture texture = new Texture();
texture.BeginUse();
texture.FilterTrilinear();
//todo: 16bit channels
using (Bitmap bmp = new Bitmap(bitmap))
{
bmp.RotateFlip(RotateFlipType.RotateNoneFlipY);
BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadOnly, bmp.PixelFormat);
PixelInternalFormat internalFormat = selectInternalPixelFormat(bmp.PixelFormat);
OpenTK.Graphics.OpenGL.PixelFormat inputPixelFormat = selectInputPixelFormat(bmp.PixelFormat);
texture.LoadPixels(bmpData.Scan0, bmpData.Width, bmpData.Height, internalFormat, inputPixelFormat, PixelType.UnsignedByte);
bmp.UnlockBits(bmpData);
}
texture.EndUse();
return(texture);
}
