Description:
Stock effects provides source code for the five effects
(BasicEffect, SkinnedEffect, EnvironmentMapEffect, DualTextureEffect, and
AlphaTestEffect), and the default shader used by SpriteBatch (SpriteEffect),
built into the XNA Framework. There's also a command-line utility
(CompileEffect) that uses the Content Pipeline to compile a .fx source file
into a binary blob that can be passed directly to the XNA Framework Effect class constructor.
Sample Overview
This code is provided for educational purposes. It may be a
useful starting point when you create more advanced shaders.
Although the built-in effect classes are simple and easy to
use, the shader code behind them is complex because these effects support many
rendering options within a single shader. BasicEffect, for example, allows you
to toggle on or off texturing, vertex colors, and lighting, and to select
per-vertex or per-pixel lighting. To support all possible permutations of these
options, BasicEffect ends up needing no less than 20 different vertex shaders
and 10 pixel shaders, all of which are combined within a single effect file.
If you want an easy starting point to learn shader
programming, use the ShaderSeries samples. The shader samples are simpler to use than the effects
described here because they don't include so many adjustable options.
Downloads
