/// <summary>
/// Create the texture, using this technique.
/// </summary>
/// <param name="ctx">
/// A <see cref="GraphicsContext"/> used for allocating resources.
/// </param>
public override void Create(GraphicsContext ctx)
{
int internalFormat = Pixel.GetGlInternalFormat(_PixelFormat, ctx);
PixelFormat format = Pixel.GetGlFormat(_PixelFormat);
PixelType type = Pixel.GetPixelType(_PixelFormat);
for (int i = 0; i < 6; i++)
{
Image image = _Images[i];
// Set pixel transfer
foreach (int alignment in new int[] { 8, 4, 2, 1 })
{
if ((image.Stride % alignment) != 0)
{
continue;
}
Gl.PixelStore(PixelStoreParameter.UnpackAlignment, alignment);
break;
}
// Upload texture contents
Gl.TexImage2D(_CubeTargets[i], 0, internalFormat, (int)image.Width, (int)image.Height, 0, format, type, image.ImageBuffer);
}
// Define texture properties
_TextureCube.DefineExtents(_PixelFormat, _Images[0].Width, _Images[0].Height, 1, 0);
}
/// <summary>
/// Create the texture, using this technique.
/// </summary>
/// <param name="ctx">
/// A <see cref="GraphicsContext"/> used for allocating resources.
/// </param>
public override void Create(GraphicsContext ctx)
{
int internalFormat = Pixel.GetGlInternalFormat(_PixelFormat, ctx);
// Define empty texture
for (int i = 0; i < 6; i++)
{
Gl.TexImage2D(_CubeTargets[i], 0, internalFormat, (int)_Size, (int)_Size, 0, /* Unused */ PixelFormat.Rgb, /* Unused */ PixelType.UnsignedByte, null);
}
// Define texture properties
_TextureCube.DefineExtents(_PixelFormat, _Size, _Size, 1, 0);
}
