private void BuildShaderVariant(ShaderVariant variant, WaterQualityLevel qualityLevel)
{
bool flag = this._TransparencyMode == WaterTransparencyMode.Refractive && qualityLevel.AllowAlphaBlending;
variant.SetWaterKeyword("_WATER_REFRACTION", flag);
variant.SetWaterKeyword("_CUBEMAP_REFLECTIONS", this._ReflectionProbeUsage != ReflectionProbeUsage.Off);
variant.SetWaterKeyword("_WATER_RECEIVE_SHADOWS", this._ReceiveShadows);
variant.SetWaterKeyword("_ALPHABLEND_ON", flag);
variant.SetWaterKeyword("_ALPHAPREMULTIPLY_ON", !flag);
variant.SetUnityKeyword("_TRIANGLES", this._CustomTriangularGeometry);
if (this._ProjectionGrid)
{
variant.SetAdditionalSurfaceCode("_PROJECTION_GRID", "\t\t\t#pragma multi_compile _PROJECTION_GRID_OFF _PROJECTION_GRID");
}
variant.SetUnityKeyword("_WATER_OVERLAYS", this._LocalEffectsSupported);
variant.SetUnityKeyword("_LOCAL_MAPS_DEBUG", this._LocalEffectsSupported && this._LocalEffectsDebug);
WindWavesRenderMode windWavesRenderMode = this.BuildWindWavesVariant(variant, qualityLevel);
variant.SetWaterKeyword("_WATER_FOAM_WS", this._Foam && !this._LocalEffectsSupported && windWavesRenderMode == WindWavesRenderMode.FullFFT);
variant.SetUnityKeyword("_BOUNDED_WATER", this._DisplayOnlyInAdditiveVolumes);
variant.SetUnityKeyword("_WAVES_ALIGN", this._WavesAlign);
variant.SetWaterKeyword("_NORMALMAP", this._NormalMappingMode == NormalMappingMode.Always || (this._NormalMappingMode == NormalMappingMode.Auto && windWavesRenderMode > WindWavesRenderMode.GerstnerAndFFTNormals));
variant.SetWaterKeyword("_EMISSION", this._SupportEmission);
variant.SetWaterKeyword("_PLANAR_REFLECTIONS", this._PlanarReflections == PlanarReflectionsMode.Normal);
variant.SetWaterKeyword("_PLANAR_REFLECTIONS_HQ", this._PlanarReflections == PlanarReflectionsMode.HighQuality);
}
internal void ResolveFinalSettings(WaterQualityLevel quality)
{
this.CreateObjects();
WaterWavesMode wavesMode = quality.WavesMode;
if (wavesMode == WaterWavesMode.DisallowAll)
{
this._WaterWavesFFT.Disable();
this._WaterWavesGerstner.Disable();
return;
}
bool flag = SystemInfo.SupportsRenderTextureFormat(RenderTextureFormat.ARGBFloat) || SystemInfo.SupportsRenderTextureFormat(RenderTextureFormat.ARGBHalf);
int num = Mathf.Min(new int[]
{
this._Data.Resolution,
quality.MaxSpectrumResolution,
SystemInfo.maxTextureSize
});
bool flag2 = this._Data.HighPrecision && quality.AllowHighPrecisionTextures && SystemInfo.SupportsRenderTextureFormat(RenderTextureFormat.ARGBFloat);
WindWavesRenderMode windWavesMode = this._Water.ShaderSet.WindWavesMode;
if (windWavesMode == WindWavesRenderMode.FullFFT && wavesMode == WaterWavesMode.AllowAll && flag)
{
this._FinalRenderMode = WaveSpectrumRenderMode.FullFFT;
}
else if (windWavesMode <= WindWavesRenderMode.GerstnerAndFFTNormals && wavesMode <= WaterWavesMode.AllowNormalFFT && flag)
{
this._FinalRenderMode = WaveSpectrumRenderMode.GerstnerAndFFTNormals;
}
else
{
this._FinalRenderMode = WaveSpectrumRenderMode.Gerstner;
}
if (this._FinalResolution != num)
{
lock (this)
{
this._FinalResolution = num;
this._FinalHighPrecision = flag2;
if (this._SpectrumResolver != null)
{
this._SpectrumResolver.OnMapsFormatChanged(true);
}
if (this.ResolutionChanged != null)
{
this.ResolutionChanged.Invoke(this);
}
}
}
else if (this._FinalHighPrecision != flag2)
{
lock (this)
{
this._FinalHighPrecision = flag2;
if (this._SpectrumResolver != null)
{
this._SpectrumResolver.OnMapsFormatChanged(false);
}
}
}
WaveSpectrumRenderMode finalRenderMode = this._FinalRenderMode;
if (finalRenderMode != WaveSpectrumRenderMode.FullFFT)
{
if (finalRenderMode != WaveSpectrumRenderMode.GerstnerAndFFTNormals)
{
if (finalRenderMode == WaveSpectrumRenderMode.Gerstner)
{
this._WaterWavesFFT.Disable();
this._WaterWavesGerstner.Enable();
}
}
else
{
this._WaterWavesFFT.RenderedMaps = WavesRendererFFT.MapType.Normal;
this._WaterWavesFFT.Enable();
this._WaterWavesGerstner.Enable();
}
}
else
{
this._WaterWavesFFT.RenderedMaps = (WavesRendererFFT.MapType.Displacement | WavesRendererFFT.MapType.Normal);
this._WaterWavesFFT.Enable();
this._WaterWavesGerstner.Disable();
}
}