/// <summary>
/// Function called when the effect is being initialized.
/// </summary>
/// <remarks>
/// Use this method to set up the effect upon its creation. For example, this method could be used to create the required shaders for the effect.
/// </remarks>
protected override void OnInitialize()
{
// Compile our blur shader.
_grayScaleShader = CompileShader <GorgonPixelShader>(Resources.BasicSprite, "GorgonPixelShaderGrayScale");
_grayScaleState = PixelShaderBuilder
.Shader(_grayScaleShader)
.Build();
_batchState = BatchStateBuilder
.PixelShaderState(_grayScaleState)
.Build();
}
/// <summary>
/// Function called to initialize the effect.
/// </summary>
/// <remarks>Applications must implement this method to ensure that any required resources are created, and configured for the effect.</remarks>
protected override void OnInitialize()
{
var globalData = new GlobalEffectData
{
CameraPosition = DX.Vector3.Zero,
FlipYNormal = 0
};
_globalData = GorgonConstantBufferView.CreateConstantBuffer(Graphics, ref globalData, "Global deferred light effect data.", ResourceUsage.Default);
_lightData = GorgonConstantBufferView.CreateConstantBuffer(Graphics,
new GorgonConstantBufferInfo("Deferred Lighting Light Data Buffer")
{
SizeInBytes = Unsafe.SizeOf <PointLightData>(),
Usage = ResourceUsage.Dynamic
});
Macros.Add(new GorgonShaderMacro("DEFERRED_LIGHTING"));
_vertexDeferShader = CompileShader <GorgonVertexShader>(Resources.Lighting, "GorgonVertexLightingShader");
_vertexDeferShaderState = VertexShaderBuilder.Shader(_vertexDeferShader)
.Build();
_pixelDeferShader = CompileShader <GorgonPixelShader>(Resources.Lighting, "GorgonPixelShaderDeferred");
_pixelDeferShaderState = PixelShaderBuilder.Shader(_pixelDeferShader)
.SamplerState(_diffuseFilter, 0)
.SamplerState(_normalFilter, 1)
.SamplerState(_specularFilter, 2)
.Build();
Macros.Clear();
Macros.Add(new GorgonShaderMacro("LIGHTS"));
_vertexLitShader = CompileShader <GorgonVertexShader>(Resources.Lighting, "GorgonVertexLitShader");
_vertexLitShaderState = VertexShaderBuilder.Shader(_vertexLitShader)
.Build();
_pixelLitShader = CompileShader <GorgonPixelShader>(Resources.Lighting, "GorgonPixelShaderLighting");
_pixelLitShaderState = PixelShaderBuilder.Shader(_pixelLitShader)
.ConstantBuffer(_lightData, 1)
.ConstantBuffer(_globalData, 2)
.SamplerState(_diffuseFilter, 0)
.SamplerState(_normalFilter, 1)
.SamplerState(_specularFilter, 2)
.Build();
// Rebuild our states for the new pixel shaders.
_lightingState = BatchStateBuilder.PixelShaderState(_pixelLitShaderState)
.VertexShaderState(_vertexLitShaderState)
.BlendState(GorgonBlendState.Additive)
.Build();
}
/// <summary>
/// Function called to build a new (or return an existing) 2D batch state.
/// </summary>
/// <param name="passIndex">The index of the current rendering pass.</param>
/// <param name="statesChanged"><b>true</b> if the blend, raster, or depth/stencil state was changed. <b>false</b> if not.</param>
/// <returns>The 2D batch state.</returns>
protected override Gorgon2DBatchState OnGetBatchState(int passIndex, bool statesChanged)
{
switch (passIndex)
{
case 0:
if ((statesChanged) || (_deferredState == null))
{
_deferredState = BatchStateBuilder
.PixelShaderState(_pixelDeferShaderState)
.VertexShaderState(_vertexDeferShaderState)
.BlendState(GorgonBlendState.NoBlending)
.Build();
}
return(_deferredState);
default:
return(_lightingState);
}
}
