/// <inheritdoc/>
public override EffectImplementation Process(ContentManager manager, IContentProcessorMetadata metadata, String input)
{
var isFragShader = (metadata.Extension == ".frag");
var isVertShader = (metadata.Extension == ".vert");
if (!isFragShader && !isVertShader)
{
throw new InvalidDataException(OpenGLStrings.ImplicitEffectsMustLoadFromShaders.Format(metadata.AssetPath));
}
var vertShaderFilePath = isFragShader ? Path.ChangeExtension(metadata.AssetPath, "vert") : metadata.AssetPath;
var fragShaderFilePath = isFragShader ? metadata.AssetPath : Path.ChangeExtension(metadata.AssetPath, "frag");
metadata.AddAssetDependency(isFragShader ? vertShaderFilePath : fragShaderFilePath);
var vertShaderSource = ShaderSource.ProcessExterns(manager.Load <ShaderSource>(vertShaderFilePath), Externs);
var vertShader = new OpenGLVertexShader(manager.Ultraviolet, new[] { vertShaderSource });
var fragShaderSource = ShaderSource.ProcessExterns(manager.Load <ShaderSource>(fragShaderFilePath), Externs);
var fragShader = new OpenGLFragmentShader(manager.Ultraviolet, new[] { fragShaderSource });
var program = new OpenGLShaderProgram(manager.Ultraviolet, vertShader, fragShader, false);
var pass = new OpenGLEffectPass(manager.Ultraviolet, "Default", new[] { program });
var technique = new OpenGLEffectTechnique(manager.Ultraviolet, "Default", new[] { pass });
return(new OpenGLEffectImplementation(manager.Ultraviolet, new[] { technique }));
}
/// <summary>
/// Creates the effect implementation.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
/// <returns>The effect implementation.</returns>
private static EffectImplementation CreateEffectImplementation(UltravioletContext uv)
{
Contract.Require(uv, nameof(uv));
var programs = new OpenGLShaderProgram[VSIndices.Length];
for (var i = 0; i < programs.Length; i++)
{
var vShader = VSArray[VSIndices[i]];
var fShader = PSArray[PSIndices[i]];
programs[i] = new OpenGLShaderProgram(uv, vShader, fShader, false);
}
var passes = new[] { new OpenGLEffectPass(uv, null, programs) };
var techniques = new[] { new OpenGLEffectTechnique(uv, null, passes) };
return(new OpenGLEffectImplementation(uv, techniques));
}
