// SampleX16 - Render To Texture
// by Lord Trancos
// ---------------------------------------------------------------------------
//
// This effect can be used (for instance) for rendering monitors with
// real time textures on their screens (live video). But also can be
// used for many other things; like real time shadows (shadow maps),
// motion blur, transitions... 
//
// Next two samples show two (motion blur and transitions) of these
// other usages, and are based on this sample source code.
//
// NOTE: Do not abuse switching render-targets,
//       that has a performance cost.
//
