/// <summary>
/// Creates new (set of) renderable Texture(s)
/// </summary>
/// <param name="width">The width in pixels of the Texture(s)</param>
/// <param name="height">The height in pixels of the Texture(s)</param>
/// <param name="depth">True if depthbuffer is required when rendering to the Texture(s)</param>
/// <param name="components">The number of color components the Texture(s) have</param>
/// <param name="format">The data format the Texture(s) shall use, default is 16bit Half</param>
/// <param name="buffers">The number of Textures to use.</param>
public RenderToTexture(int width, int height, bool depth, int components = 3, Type format = null, int buffers = 1)
{
_fbo = new FramebufferObject();
_textures = new Texture2D[buffers];
_bufs = new DrawBuffersEnum[buffers];
for (var i = 0; i < buffers; i++)
_bufs[i] = DrawBuffersEnum.ColorAttachment0 + i;
_fbo.Activate();
GL.DrawBuffers(_textures.Length, _bufs);
Utilities.CheckGL();
_fbo.Finish();
GL.DrawBuffer(DrawBufferMode.Back);
Utilities.CheckGL();
for (var i = 0; i < buffers; i++)
{
_textures[i] = new Texture2D(width, height, components, format ?? typeof(Half));
_fbo.SetTexture(_textures[i], i);
}
if (depth)
{
_rbo = new RenderbufferObject();
_fbo.Activate();
_rbo.SetSize(width, height);
_fbo.Finish();
}
_fbo.Check();
Utilities.CheckGL();
}
private RenderToTexture(int width, int height, bool depth, int buffers, Func<Texture2D> createTexture )
{
_fbo = new FramebufferObject();
_textures = new Texture2D[buffers];
_bufs = new DrawBuffersEnum[buffers];
for (var i = 0; i < buffers; i++)
_bufs[i] = DrawBuffersEnum.ColorAttachment0 + i;
_fbo.Activate();
GL.DrawBuffers(_textures.Length, _bufs);
Utilities.CheckGL();
_fbo.Finish();
GL.DrawBuffer(DrawBufferMode.Back);
Utilities.CheckGL();
for (var i = 0; i < buffers; i++)
{
_textures[i] = createTexture();
_fbo.SetTexture(_textures[i], i);
}
if (depth)
{
_rbo = new RenderbufferObject();
_fbo.Activate();
_rbo.SetSize(width, height);
_fbo.Finish();
}
_fbo.Check();
Utilities.CheckGL();
}
private RenderToTexture(int width, int height, bool depth, int buffers, Func <Texture2D> createTexture)
{
_fbo = new FramebufferObject();
_textures = new Texture2D[buffers];
_bufs = new DrawBuffersEnum[buffers];
for (var i = 0; i < buffers; i++)
{
_bufs[i] = DrawBuffersEnum.ColorAttachment0 + i;
}
_fbo.Activate();
GL.DrawBuffers(_textures.Length, _bufs);
Utilities.CheckGL();
_fbo.Finish();
GL.DrawBuffer(DrawBufferMode.Back);
Utilities.CheckGL();
for (var i = 0; i < buffers; i++)
{
_textures[i] = createTexture();
_fbo.SetTexture(_textures[i], i);
}
if (depth)
{
_rbo = new RenderbufferObject();
_fbo.Activate();
_rbo.SetSize(width, height);
_fbo.Finish();
}
_fbo.Check();
Utilities.CheckGL();
}
