Improving Shadows and Reflections via the Stencil Buffer ... onto arbitrarily shaped objects, and don't expect to see shadows from multiple light sources.

A single object can be lit by multiple lights, and the lights can have arbitrary colors and .... Each pass clears the stencil buffer, marks shadowed areas in it, and then ...... of how to model the surface details and the light reflection behavior. (Some ...

17 Jul 2009... rendering, shadow volumes using stencil buffers, and constructive solid ... at the intersections of clipping planes and solid objects defined by ...

17 Jul 2009 ... In this chapter, we explain how robust stencil shadow rendering is implemented ... We set up the hardware so that the value in the stencil buffer is increased on ... For nonconvex objects, this extrusion can result in nested ..... Robust Multiple Specular Reflections and Refractions · GPU Gems 3: Chapter 18.

In computer-generated scenes, an object's shadow enhances our perception of ... it (the only essential hardware feature is support for an eight-bit stencil buffer), ... traditionally used in computer graphics to implement environment reflections, ...

Chapter 11: Efficient and Robust Shadow Volumes Using Hierarchical ... Chapter 17: Robust Multiple Specular Reflections and Refractions ... Chapter 26: Object Detection by Color: Using the GPU for Real-Time Video Image Processing ... include texture-based volume rendering, shadow volumes using stencil buffers, and ...

fig19-03.jpg. Figure 19-3 Reflective Object with Localized Reflection ... data from application vertex buffer struct appdata { float3 Position : POSITION; float4 UV .... Stencil shadow volume techniques can be applied here, as can shadow maps.

The subject of light and shadows may appear simplistic, but in reality it ... alternative for real-time dynamic shadows is stencil shadow volumes (SSVs). ...... In our case, these details may be sharp, secondary shadows or glossy reflections . ..... We store all quads in a vertex-buffer object to avoid transferring to the GPU during ...

When visualizing complex objects and architectures, perfect photorealism is often not ... The only added work is G-buffer sampling and, possibly, unpacking. ... This freed us from a specific material reflection model, while also allowing us to ..... Stencil shadows and shadow maps both work well within deferred renderers.

Occlusion queries allow the GPU to return the amount of pixels that an object would ..... such as particles; and when rendering objects into shadow maps (in fact, ... Note, however, that you should clear the depth and stencil buffers whenever you can, ...... Complex features such as transparency and reflection effects are still ...