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);
}
private WindWavesRenderMode BuildWindWavesVariant(ShaderVariant variant, WaterQualityLevel qualityLevel)
{
WaterWavesMode wavesMode = qualityLevel.WavesMode;
WindWavesRenderMode windWavesRenderMode;
if (this._WindWavesMode == WindWavesRenderMode.Disabled || wavesMode == WaterWavesMode.DisallowAll)
{
windWavesRenderMode = WindWavesRenderMode.Disabled;
}
else if (this._WindWavesMode == WindWavesRenderMode.FullFFT && wavesMode == WaterWavesMode.AllowAll)
{
windWavesRenderMode = WindWavesRenderMode.FullFFT;
}
else if (this._WindWavesMode <= WindWavesRenderMode.GerstnerAndFFTNormals && wavesMode <= WaterWavesMode.AllowNormalFFT)
{
windWavesRenderMode = WindWavesRenderMode.GerstnerAndFFTNormals;
}
else
{
windWavesRenderMode = WindWavesRenderMode.Gerstner;
}
if (windWavesRenderMode != WindWavesRenderMode.FullFFT)
{
if (windWavesRenderMode != WindWavesRenderMode.GerstnerAndFFTNormals)
{
if (windWavesRenderMode == WindWavesRenderMode.Gerstner)
{
variant.SetUnityKeyword("_WAVES_GERSTNER", true);
}
}
else
{
variant.SetWaterKeyword("_WAVES_FFT_NORMAL", true);
variant.SetUnityKeyword("_WAVES_GERSTNER", true);
}
}
else
{
variant.SetUnityKeyword("_WAVES_FFT", true);
}
if (this._DynamicSmoothnessMode == DynamicSmoothnessMode.Physical)
{
variant.SetWaterKeyword("_INCLUDE_SLOPE_VARIANCE", true);
}
return(windWavesRenderMode);
}