public unsafe DepthStencil(IDisposableResource parent, int width, int height, DepthStencilFormats depthStencilFormats) : base(parent) { try { uint depthBit = GL.DEPTH_COMPONENT16, stencilBit = 0; switch (depthStencilFormats) { case DepthStencilFormats.Defualt: #if iOS || ANDROID || NaCl || RPI depthBit = GL.DEPTH_COMPONENT16; stencilBit = 0; #else depthBit = GL.DEPTH_COMPONENT24; stencilBit = 0; #endif break; case DepthStencilFormats.Depth24Stencil8: depthBit = GL.DEPTH_COMPONENT24; stencilBit = GL.STENCIL_INDEX8; break; case DepthStencilFormats.Depth16: depthBit = GL.DEPTH_COMPONENT16; stencilBit = 0; break; case DepthStencilFormats.Depth24: depthBit = GL.DEPTH_COMPONENT24; stencilBit = 0; break; case DepthStencilFormats.Depth32: depthBit = GL.DEPTH_COMPONENT32; stencilBit = 0; break; default: Debug.ThrowError("DepthStencil", "Unsuported DepthStencilFormat type"); break; } Size = new Size2(width, height); SizeF = Size.ToVector2(); // create depth uint surfaceTEMP = 0; GL.GenRenderbuffers(1, &surfaceTEMP); if (surfaceTEMP == 0) { Debug.ThrowError("DpethStencil", "Failed to create DepthBuffer"); } depthBuffer = surfaceTEMP; GL.BindRenderbuffer(GL.RENDERBUFFER, depthBuffer); GL.RenderbufferStorage(GL.RENDERBUFFER, depthBit, width, height); // create stencil if (stencilBit != 0) { surfaceTEMP = 0; GL.GenRenderbuffers(1, &surfaceTEMP); if (surfaceTEMP == 0) { Debug.ThrowError("DpethStencil", "Failed to create StencilBuffer"); } stencilBuffer = surfaceTEMP; GL.BindRenderbuffer(GL.RENDERBUFFER, stencilBuffer); GL.RenderbufferStorage(GL.RENDERBUFFER, stencilBit, width, height); } uint error; string errorName; if (Video.checkForError(out error, out errorName)) { Debug.ThrowError("DepthStencil", string.Format("{0} {1}: Failed to create DepthStencil", error, errorName)); } } catch (Exception e) { Dispose(); throw e; } }