/// <summary>
/// The constructor to create a shader effect.
/// </summary>
/// <param name="effectPasses">The ordered array of <see cref="EffectPassDeclaration"/> items. The first item
/// in the array is the first pass applied to rendered geometry, and so on.</param>
/// <param name="effectParameters">A list of (uniform) parameters possibly occurring in one of the shaders in the various passes.
/// Each array entry consists of the parameter's name and its initial value. The concrete type of the object also indicates the
/// parameter's type.
/// </param>
/// <remarks>Make sure to list any parameter in any of the different passes' shaders you want to change later on in the effectParameters
/// list. Shaders must not contain parameters with names listed in the effectParameters but declared with different types than those of
/// the respective default values given here.</remarks>
public ShaderEffect(EffectPassDeclaration[] effectPasses, IEnumerable <EffectParameterDeclaration> effectParameters)
{
if (effectPasses == null || effectPasses.Length == 0)
{
throw new ArgumentNullException(nameof(effectPasses), "must not be null and must contain at least one pass");
}
var nPasses = effectPasses.Length;
States = new RenderStateSet[nPasses];
VertexShaderSrc = new string[nPasses];
PixelShaderSrc = new string[nPasses];
GeometryShaderSrc = new string[nPasses];
ParamDecl = new Dictionary <string, object>();
for (int i = 0; i < effectPasses.Length; i++)
{
States[i] = effectPasses[i].StateSet;
VertexShaderSrc[i] = effectPasses[i].VS;
PixelShaderSrc[i] = effectPasses[i].PS;
GeometryShaderSrc[i] = effectPasses[i].GS;
}
if (effectParameters != null)
{
foreach (var param in effectParameters)
{
ParamDecl.Add(param.Name, param.Value);
}
}
EffectEventArgs = new ShaderEffectEventArgs(this, ShaderEffectChangedEnum.Unchanged);
}
/// <summary>
/// Creates a new instance of type ShaderEffectProtoPixel.
/// </summary>
/// <param name="effectPasses"></param>
/// <param name="effectParameters"></param>
public ShaderEffectProtoPixel(EffectPassDeclarationProto[] effectPasses, IEnumerable <EffectParameterDeclaration> effectParameters)
{
if (effectPasses == null || effectPasses.Length == 0)
{
throw new ArgumentNullException(nameof(effectPasses), "must not be null and must contain at least one pass");
}
var nPasses = effectPasses.Length;
States = new RenderStateSet[nPasses];
VertexShaderSrc = new string[nPasses];
PixelShaderSrc = new string[nPasses];
GeometryShaderSrc = new string[nPasses];
ParamDecl = new Dictionary <string, object>();
if (effectParameters != null)
{
foreach (var param in effectParameters)
{
ParamDecl.Add(param.Name, param.Value);
}
}
_effectPasses = effectPasses;
for (int i = 0; i < nPasses; i++)
{
States[i] = effectPasses[i].StateSet;
VertexShaderSrc[i] = effectPasses[i].VS;
GeometryShaderSrc[i] = effectPasses[i].GS;
//PixelShaderSrc is not set here because it gets built in a pre-pass, depending on whether we render deferred or forward.
}
EffectEventArgs = new ShaderEffectEventArgs(this, ShaderEffectChangedEnum.Unchanged);
}
