// Build a shader for all supported feature levels and save its
// bytecode to the shader library.
private static void saveToLibrary(PlanetShaderKey k)
{
var planetShader = new PlanetShader11(k);
foreach (var level in ShaderLibrary.ShaderLevels)
{
planetShader.BuildShader(level.vertexProfile, level.pixelProfile);
}
}
/// <summary>
/// Get the planet shader for the specified shader key. The shader is created
/// if it's not already in the shader library.
/// </summary>
/// <param name="device">Direct3D device</param>
/// <param name="key">Planet surface shader key</param>
/// <returns>A Direct3D shader to produce the requested effect.</returns>
public static PlanetShader11 GetPlanetShader(Device device, PlanetShaderKey key)
{
PlanetShader11 shader;
if (shaderLibrary == null || regenerateShaders)
{
shaderLibraryComparer = new PlanetShaderKeyComparer();
shaderLibrary = new Dictionary<PlanetShaderKey, PlanetShader11>(shaderLibraryComparer);
regenerateShaders = false;
}
// Retrieve the shader from the library of compiled shaders;
// if the shader isn't in the shader library, create it and
// add it.
if (!shaderLibrary.TryGetValue(key, out shader))
{
if (shader == null)
{
// Shader was not retrieved from the cache of precompiled shaders
shader = new PlanetShader11(key);
shader.BuildShader(RenderContext11.VertexProfile, RenderContext11.PixelProfile);
shader.Realize(device);
shaderLibrary[key] = shader;
}
}
return shader;
}
