float AVaOceanStateActorSimple::GetOceanLevelAtLocation(FVector& Location) const
{
// Check that we've set a texture
if (!OceanHeightMap)
{
return GetGlobalOceanLevel() + WaterHeight;
}
#if WITH_EDITORONLY_DATA
check(OceanHeightMap->Source.IsValid());
// Check we have a raw data loaded
if (!bRawDataReady)
{
// UE_LOG(LogVaOcean, Warning, TEXT("Can't load raw data of ocean heightmap!"));
return 0.0f;
}
//
// SimpleOcean shader algorythm
//
// World UV location
float WorldUVx = Location.X / WorldPositionDivider / WaveUVDivider;
float WorldUVy = Location.Y / WorldPositionDivider / WaveUVDivider;
// Apply panner
WorldUVx += WaveHeightPannerX * WaveHeightPannerTime;
WorldUVy += WaveHeightPannerY * WaveHeightPannerTime;
// Get heightmap color
const FLinearColor PixelColor = FLinearColor(GetHeighMapPixelColor(WorldUVx, WorldUVy));
// Calculate wave height
float OceanLevel = PixelColor.A * WaveHeight - WaterHeight;
return OceanLevel + GlobalOceanLevel;
#else
return GetGlobalOceanLevel() + WaterHeight;
#endif
}
float AVaOceanStateActor::GetOceanLevelAtLocation(FVector& Location) const
{
// @TODO Get altitute from ocean simulation component
return GetGlobalOceanLevel();
}
