/// <summary>
/// Creates and allocates a new
/// texture with a OpenGL id.
/// </summary>
public Texture(TextureParamPack paramPack)
{
Id = GManager.GenTexture();
Bind();
ApplyParamPack(paramPack);
Unbind();
}
public void ApplyParamPack(TextureParamPack texParams)
{
CheckBind();
SetMinMag(texParams.MinFilter, texParams.MagFilter);
SetWrapMode(texParams.WrapS, texParams.WrapT);
}
public FramebufferTexture(int screenWidth, int screenHeight, TextureParamPack texParams,
FramebufferAttachment attachmentType, PixelInternalFormat internalFormat, PixelFormat format, PixelType type)
: base(texParams)
{
this.AttachmentType = attachmentType;
this.InternalPixelFormat = internalFormat;
this.PixelFormat = format;
this.PixelType = type;
this.Width = screenWidth;
this.Height = screenHeight;
CreateTexture();
}
public PostProcessBuffer(int width, int height)
: base(width, height)
{
GLError.Begin();
// Bind the FBO
Bind();
// Create the textures
TextureParamPack texParams = new TextureParamPack(TextureMagFilter.Nearest, TextureMinFilter.Nearest, TextureWrapMode.ClampToEdge);
ColorTexture = new FramebufferTexture(width, height, texParams, FramebufferAttachment.ColorAttachment0,
PixelInternalFormat.Rgba16f, PixelFormat.Rgba, PixelType.HalfFloat);
// Create the depth buffer
depthBuffer = GL.GenRenderbuffer();
GL.BindRenderbuffer(RenderbufferTarget.Renderbuffer, depthBuffer);
GL.RenderbufferStorage(RenderbufferTarget.Renderbuffer, RenderbufferStorage.DepthComponent24, Width, Height);
GL.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, FramebufferAttachment.DepthAttachment,
RenderbufferTarget.Renderbuffer, depthBuffer);
GL.BindRenderbuffer(RenderbufferTarget.Renderbuffer, 0);
// Set and enable the draw buffers
SetDrawBuffers(DrawBuffersEnum.ColorAttachment0);
EnableDrawBuffers();
// Check for errors
CheckForErrors();
// Unbind
Unbind();
ErrorCode err = GLError.End();
if (err != ErrorCode.NoError)
{
throw new Exception(string.Format("Failed to create PostProcessBuffer. OpenGL Error: {0}", err));
}
}
public TexRenderTarget(int width, int height)
: base(width, height)
{
// Bind the FBO
Bind();
// Create the textures
TextureParamPack texParams = new TextureParamPack(TextureMagFilter.Nearest, TextureMinFilter.Nearest, TextureWrapMode.ClampToEdge);
Texture = new FramebufferTexture(width, height, texParams, FramebufferAttachment.ColorAttachment0,
PixelInternalFormat.Rgba, PixelFormat.Rgba, PixelType.UnsignedByte);
// Set and enable the draw buffers
SetDrawBuffers(DrawBuffersEnum.ColorAttachment0);
EnableDrawBuffers();
// Check for errors
CheckForErrors();
// Unbind
Unbind();
}
