public void Create(int width, int height)
{
if (glGenFramebuffersEXT == null)
{
glGenFramebuffersEXT = OpenGL.GetDelegateFor <OpenGL.glGenFramebuffersEXT>();
glBindFramebufferEXT = OpenGL.GetDelegateFor <OpenGL.glBindFramebufferEXT>();
glGenRenderbuffersEXT = OpenGL.GetDelegateFor <OpenGL.glGenRenderbuffersEXT>();
glBindRenderbufferEXT = OpenGL.GetDelegateFor <OpenGL.glBindRenderbufferEXT>();
glRenderbufferStorageEXT = OpenGL.GetDelegateFor <OpenGL.glRenderbufferStorageEXT>();
glFramebufferRenderbufferEXT = OpenGL.GetDelegateFor <OpenGL.glFramebufferRenderbufferEXT>();
glDeleteRenderbuffersEXT = OpenGL.GetDelegateFor <OpenGL.glDeleteRenderbuffersEXT>();
glDeleteFramebuffersEXT = OpenGL.GetDelegateFor <OpenGL.glDeleteFramebuffersEXT>();
}
// First, create the frame buffer and bind it.
glGenFramebuffersEXT(1, this.framebufferId);
glBindFramebufferEXT(OpenGL.GL_FRAMEBUFFER, this.framebufferId[0]);
// Create the color render buffer and bind it, then allocate storage for it.
glGenRenderbuffersEXT(1, this.colorRenderBufferId);
glBindRenderbufferEXT(OpenGL.GL_RENDERBUFFER, this.colorRenderBufferId[0]);
glRenderbufferStorageEXT(OpenGL.GL_RENDERBUFFER, OpenGL.GL_RGBA, width, height);
// Create the depth render buffer and bind it, then allocate storage for it.
glGenRenderbuffersEXT(1, this.depthRenderBufferId);
glBindRenderbufferEXT(OpenGL.GL_RENDERBUFFER, this.depthRenderBufferId[0]);
glRenderbufferStorageEXT(OpenGL.GL_RENDERBUFFER, OpenGL.GL_DEPTH_COMPONENT24, width, height);
// Set the render buffer for color and depth.
glFramebufferRenderbufferEXT(OpenGL.GL_FRAMEBUFFER, OpenGL.GL_COLOR_ATTACHMENT0,
OpenGL.GL_RENDERBUFFER, this.colorRenderBufferId[0]);
glFramebufferRenderbufferEXT(OpenGL.GL_FRAMEBUFFER, OpenGL.GL_DEPTH_ATTACHMENT,
OpenGL.GL_RENDERBUFFER, this.depthRenderBufferId[0]);
}
static Framebuffer()
{
glGenFramebuffers = OpenGL.GetDelegateFor <OpenGL.glGenFramebuffersEXT>();
glBindFramebuffer = OpenGL.GetDelegateFor <OpenGL.glBindFramebufferEXT>();
glFramebufferTexture2D = OpenGL.GetDelegateFor <OpenGL.glFramebufferTexture2DEXT>();
glCheckFramebufferStatus = OpenGL.GetDelegateFor <OpenGL.glCheckFramebufferStatusEXT>();
glDeleteFramebuffers = OpenGL.GetDelegateFor <OpenGL.glDeleteFramebuffersEXT>();
}
static Framebuffer()
{
glGenFramebuffers = OpenGL.GetDelegateFor<OpenGL.glGenFramebuffersEXT>();
glBindFramebuffer = OpenGL.GetDelegateFor<OpenGL.glBindFramebufferEXT>();
glFramebufferTexture2D = OpenGL.GetDelegateFor<OpenGL.glFramebufferTexture2DEXT>();
glCheckFramebufferStatus = OpenGL.GetDelegateFor<OpenGL.glCheckFramebufferStatusEXT>();
glDeleteFramebuffers = OpenGL.GetDelegateFor<OpenGL.glDeleteFramebuffersEXT>();
}
private void InitFramebufferExtensions()
{
if (glGenFramebuffers == null)
{
glGenFramebuffers = OpenGL.GetDelegateFor <OpenGL.glGenFramebuffersEXT>();
glBindFramebuffer = OpenGL.GetDelegateFor <OpenGL.glBindFramebufferEXT>();
glFramebufferTexture2D = OpenGL.GetDelegateFor <OpenGL.glFramebufferTexture2DEXT>();
glCheckFramebufferStatus = OpenGL.GetDelegateFor <OpenGL.glCheckFramebufferStatusEXT>();
glDeleteFramebuffers = OpenGL.GetDelegateFor <OpenGL.glDeleteFramebuffersEXT>();
}
}
