/// <summary>
/// Initializes a new instance of the <see cref="MaterialStreamDescriptor"/> class.
/// </summary>
/// <param name="name">The name.</param>
/// <param name="stream">The stream.</param>
/// <param name="filter">The filter.</param>
/// <exception cref="System.ArgumentNullException">
/// name
/// or
/// stream
/// </exception>
public MaterialStreamDescriptor(string name, string stream, ShaderSource filter = null)
{
if (name == null) throw new ArgumentNullException("name");
if (stream == null) throw new ArgumentNullException("stream");
Name = name;
Stream = stream;
Filter = filter ?? GetDefaultFilter(stream, typeof(Color3));
}
public DefaultEffectMixinProvider(string name)
{
shaderSource = new ShaderClassSource(name);
}
/// <summary>
/// Initializes a new instance of the <see cref="ShaderMixinDiscardException"/> class.
/// </summary>
/// <param name="source">The source.</param>
public ShaderMixinDiscardException(ShaderSource source)
{
DiscardSource = source;
}
/// <summary>
/// Initializes a new instance of the <see cref="ShaderMixinDiscardException"/> class.
/// </summary>
/// <param name="source">The source.</param>
public ShaderMixinDiscardException(ShaderSource source)
{
DiscardSource = source;
}
/// <summary>
/// Adds a composition to this mixin.
/// </summary>
/// <param name="name">The name.</param>
/// <param name="shaderSource">The shader source.</param>
public void AddComposition(string name, ShaderSource shaderSource)
{
Compositions[name] = shaderSource;
}
public void SetStream(MaterialShaderStage stage, string stream, MaterialStreamType streamType, ShaderSource classSource)
{
if (stream == null) throw new ArgumentNullException(nameof(stream));
// Blend stream is not part of the stream used
if (stream != MaterialBlendLayer.BlendStream)
{
GetContextPerStage(stage).Streams.Add(stream);
}
string channel;
switch (streamType)
{
case MaterialStreamType.Float:
channel = "r";
break;
case MaterialStreamType.Float2:
channel = "rg";
break;
case MaterialStreamType.Float3:
channel = "rgb";
break;
case MaterialStreamType.Float4:
channel = "rgba";
break;
default:
throw new NotSupportedException("StreamType [{0}] is not supported".ToFormat(streamType));
}
var mixin = new ShaderMixinSource();
mixin.Mixins.Add(new ShaderClassSource("MaterialSurfaceSetStreamFromComputeColor", stream, channel));
mixin.AddComposition("computeColorSource", classSource);
GetContextPerStage(stage).ShaderSources.Add(mixin);
}
/// <summary>
/// Build a encapsulating ShaderMixinSource if necessary.
/// </summary>
/// <param name="shaderSource">The input ShaderSource.</param>
/// <returns>A ShaderMixinSource</returns>
public static ShaderMixinSource GetShaderMixinSource(ShaderSource shaderSource)
{
if (shaderSource is ShaderClassSource)
{
var mixin = new ShaderMixinSource();
mixin.Mixins.Add((ShaderClassSource)shaderSource);
return mixin;
}
if (shaderSource is ShaderMixinSource)
return (ShaderMixinSource)shaderSource;
return null;
}
private void UpdateShaders(GraphicsDevice graphicsDevice)
{
if (ComputeColor != null && ComputeScalar != null)
{
var shaderGeneratorContext = new ShaderGeneratorContext(graphicsDevice)
{
Parameters = Parameters,
ColorSpace = graphicsDevice.ColorSpace
};
// Don't forget to set the proper color space!
shaderGeneratorContext.ColorSpace = graphicsDevice.ColorSpace;
var newShaderBaseColor = ComputeColor.GenerateShaderSource(shaderGeneratorContext, new MaterialComputeColorKeys(ParticleCustomShaderKeys.EmissiveMap, ParticleCustomShaderKeys.EmissiveValue, Color.White));
var newShaderBaseScalar = ComputeScalar.GenerateShaderSource(shaderGeneratorContext, new MaterialComputeColorKeys(ParticleCustomShaderKeys.IntensityMap, ParticleCustomShaderKeys.IntensityValue, Color.White));
// Check if shader code has changed
if (!newShaderBaseColor.Equals(shaderBaseColor) || !newShaderBaseScalar.Equals(shaderBaseScalar))
{
shaderBaseColor = newShaderBaseColor;
shaderBaseScalar = newShaderBaseScalar;
Parameters.Set(ParticleCustomShaderKeys.BaseColor, shaderBaseColor);
Parameters.Set(ParticleCustomShaderKeys.BaseIntensity, shaderBaseScalar);
// TODO: Is this necessary?
HasVertexLayoutChanged = true;
}
}
}
public SkyBoxPlugin(string name, ShaderSource skyBoxComposition)
: base(name)
{
Texture = null;
SkyBoxColor = skyBoxComposition;
}
protected LightShaderGroup(ShaderSource mixin)
{
ShaderSource = mixin;
}
public LightSkyBoxShaderGroup(ShaderSource mixin) : base(mixin)
{
HasEffectPermutations = true;
}
/// <summary>
/// Polls the shader generator if the shader code has changed and has to be reloaded
/// </summary>
/// <param name="graphicsDevice">The current <see cref="GraphicsDevice"/></param>
private void UpdateShaders(GraphicsDevice graphicsDevice)
{
// TODO Part of the graphics improvement XK-3052
// Don't do this every frame, we have to propagate changes better
if (--shadersUpdateCounter > 0)
return;
shadersUpdateCounter = 10;
if (ComputeColor != null)
{
if (ComputeColor.HasChanged)
{
var shaderGeneratorContext = new ShaderGeneratorContext(graphicsDevice)
{
Parameters = Parameters,
ColorSpace = graphicsDevice.ColorSpace
};
shaderSource = ComputeColor.GenerateShaderSource(shaderGeneratorContext, new MaterialComputeColorKeys(ParticleBaseKeys.EmissiveMap, ParticleBaseKeys.EmissiveValue, Color.White));
if (Parameters.Get(ParticleBaseKeys.BaseColor)?.Equals(shaderSource) ?? false)
{
shaderSource = Parameters.Get(ParticleBaseKeys.BaseColor);
}
else
{
Parameters.Set(ParticleBaseKeys.BaseColor, shaderSource);
}
HasVertexLayoutChanged = true;
}
}
}