// On-demand create any objects we need for water
void CreateWaterObjects(Camera currentCamera)
{
// Reflection render texture
if (!_reflectionTexture || _reflectionTexture.width != _textureSize)
{
if (_reflectionTexture)
{
DestroyImmediate(_reflectionTexture);
}
var format = _hdr ? RenderTextureFormat.ARGBHalf : RenderTextureFormat.ARGB32;
Debug.Assert(SystemInfo.SupportsRenderTextureFormat(format), "The graphics device does not support the render texture format " + format.ToString());
_reflectionTexture = new RenderTexture(_textureSize, _textureSize, _stencil ? 24 : 16, format)
{
name = "__WaterReflection" + GetHashCode(),
isPowerOfTwo = true,
hideFlags = HideFlags.DontSave
};
_reflectionTexture.Create();
PreparedReflections.Register(currentCamera.GetHashCode(), _reflectionTexture);
}
// Camera for reflection
if (!_camReflections)
{
GameObject go = new GameObject("Water Refl Cam");
_camReflections = go.AddComponent <Camera>();
_camReflections.enabled = false;
_camReflections.transform.position = transform.position;
_camReflections.transform.rotation = transform.rotation;
_camReflections.cullingMask = _reflectionLayers;
_camReflectionsSkybox = _camReflections.gameObject.AddComponent <Skybox>();
_camReflections.gameObject.AddComponent <FlareLayer>();
_camReflections.cameraType = CameraType.Reflection;
var additionalCameraData = _camReflections.gameObject.AddComponent <LWRPAdditionalCameraData>();
additionalCameraData.renderShadows = !_disableShadows;
additionalCameraData.requiresColorTexture = false;
additionalCameraData.requiresDepthTexture = false;
if (_hideCameraGameobject)
{
go.hideFlags = HideFlags.HideAndDontSave;
}
}
}
// Called when visible to a camera
void OnWillRenderObject()
{
if (OceanRenderer.Instance == null || Rend == null)
{
return;
}
// check if built-in pipeline being used
if (Camera.current != null)
{
_currentCamera = Camera.current;
}
// Depth texture is used by ocean shader for transparency/depth fog, and for fading out foam at shoreline.
_currentCamera.depthTextureMode |= DepthTextureMode.Depth;
if (Rend.sharedMaterial != OceanRenderer.Instance.OceanMaterial)
{
Rend.sharedMaterial = OceanRenderer.Instance.OceanMaterial;
}
// per instance data
if (_mpb == null)
{
_mpb = new PropertyWrapperMPB();
}
Rend.GetPropertyBlock(_mpb.materialPropertyBlock);
// Only done here because current camera is defined. This could be done just once, probably on the OnRender function
// or similar on the OceanPlanarReflection script?
var reflTex = PreparedReflections.GetRenderTexture(_currentCamera.GetHashCode());
if (reflTex)
{
_mpb.SetTexture(sp_ReflectionTex, reflTex);
}
else
{
_mpb.SetTexture(sp_ReflectionTex, Texture2D.blackTexture);
}
Rend.SetPropertyBlock(_mpb.materialPropertyBlock);
}
private void OnDisable()
{
if (_camViewpoint != null)
{
PreparedReflections.Remove(_camViewpoint.GetHashCode());
}
// Cleanup all the objects we possibly have created
if (_reflectionTexture)
{
Destroy(_reflectionTexture);
_reflectionTexture = null;
}
if (_camReflections)
{
Destroy(_camReflections.gameObject);
_camReflections = null;
}
}
private void OnDisable()
{
if (_camViewpoint != null)
{
PreparedReflections.Remove(_camViewpoint.GetHashCode());
}
// Cleanup all the objects we possibly have created
if (_reflectionTexture)
{
Destroy(_reflectionTexture);
_reflectionTexture = null;
}
if (_camReflections)
{
Destroy(_camReflections.gameObject);
_camReflections = null;
}
WeatherMakerCommandBufferManagerScript.Instance.UnregisterPreCull(this);
}
private void OnDisable()
{
if (_camViewpoint != null)
{
PreparedReflections.Remove(_camViewpoint.GetHashCode());
}
// Cleanup all the objects we possibly have created
if (_reflectionTexture)
{
Destroy(_reflectionTexture);
_reflectionTexture = null;
}
if (_camReflections)
{
Destroy(_camReflections.gameObject);
_camReflections = null;
}
RenderPipelineManager.beginCameraRendering -= BeginCameraRendering;
}
// Used by the ocean mask system if we need to render the ocean mask in situations
// where the ocean itself doesn't need to be rendered or has otherwise been disabled
internal void BindOceanData(Camera camera)
{
_oceanDataHasBeenBound = true;
if (OceanRenderer.Instance == null || Rend == null)
{
return;
}
if (Rend.sharedMaterial != OceanRenderer.Instance.OceanMaterial)
{
Rend.sharedMaterial = OceanRenderer.Instance.OceanMaterial;
}
// per instance data
if (_mpb == null)
{
_mpb = new PropertyWrapperMPB();
}
Rend.GetPropertyBlock(_mpb.materialPropertyBlock);
// Only done here because current camera is defined. This could be done just once, probably on the OnRender function
// or similar on the OceanPlanarReflection script?
var reflTex = PreparedReflections.GetRenderTexture(camera.GetHashCode());
if (reflTex)
{
_mpb.SetTexture(sp_ReflectionTex, reflTex);
}
else
{
_mpb.SetTexture(sp_ReflectionTex, Texture2D.blackTexture);
}
Rend.SetPropertyBlock(_mpb.materialPropertyBlock);
}
// Called when visible to a camera
void OnWillRenderObject()
{
if (OceanRenderer.Instance == null || Rend == null)
{
return;
}
// check if built-in pipeline being used
if (Camera.current != null)
{
_currentCamera = Camera.current;
}
// Depth texture is used by ocean shader for transparency/depth fog, and for fading out foam at shoreline.
_currentCamera.depthTextureMode |= DepthTextureMode.Depth;
if (Rend.sharedMaterial != OceanRenderer.Instance.OceanMaterial)
{
Rend.sharedMaterial = OceanRenderer.Instance.OceanMaterial;
}
// per instance data
if (_mpb == null)
{
_mpb = new PropertyWrapperMPB();
}
Rend.GetPropertyBlock(_mpb.materialPropertyBlock);
// blend LOD 0 shape in/out to avoid pop, if the ocean might scale up later (it is smaller than its maximum scale)
var needToBlendOutShape = _lodIndex == 0 && OceanRenderer.Instance.ScaleCouldIncrease;
var meshScaleLerp = needToBlendOutShape ? OceanRenderer.Instance.ViewerAltitudeLevelAlpha : 0f;
// blend furthest normals scale in/out to avoid pop, if scale could reduce
var needToBlendOutNormals = _lodIndex == _totalLodCount - 1 && OceanRenderer.Instance.ScaleCouldDecrease;
var farNormalsWeight = needToBlendOutNormals ? OceanRenderer.Instance.ViewerAltitudeLevelAlpha : 1f;
_mpb.SetVector(sp_InstanceData, new Vector3(meshScaleLerp, farNormalsWeight, _lodIndex));
// geometry data
// compute grid size of geometry. take the long way to get there - make sure we land exactly on a power of two
// and not inherit any of the lossy-ness from lossyScale.
var scale_pow_2 = OceanRenderer.Instance.CalcLodScale(_lodIndex);
var gridSizeGeo = scale_pow_2 / (0.25f * _lodDataResolution / _geoDownSampleFactor);
var gridSizeLodData = gridSizeGeo / _geoDownSampleFactor;
var mul = 1.875f; // fudge 1
var pow = 1.4f; // fudge 2
var normalScrollSpeed0 = Mathf.Pow(Mathf.Log(1f + 2f * gridSizeLodData) * mul, pow);
var normalScrollSpeed1 = Mathf.Pow(Mathf.Log(1f + 4f * gridSizeLodData) * mul, pow);
_mpb.SetVector(sp_GeomData, new Vector4(gridSizeLodData, gridSizeGeo, normalScrollSpeed0, normalScrollSpeed1));
// Assign LOD data to ocean shader
var ldaws = OceanRenderer.Instance._lodDataAnimWaves;
var ldsds = OceanRenderer.Instance._lodDataSeaDepths;
var ldclip = OceanRenderer.Instance._lodDataClipSurface;
var ldfoam = OceanRenderer.Instance._lodDataFoam;
var ldflow = OceanRenderer.Instance._lodDataFlow;
var ldshadows = OceanRenderer.Instance._lodDataShadow;
_mpb.SetInt(LodDataMgr.sp_LD_SliceIndex, _lodIndex);
if (ldaws != null)
{
ldaws.BindResultData(_mpb);
}
if (ldflow != null)
{
ldflow.BindResultData(_mpb);
}
else
{
LodDataMgrFlow.BindNull(_mpb);
}
if (ldfoam != null)
{
ldfoam.BindResultData(_mpb);
}
else
{
LodDataMgrFoam.BindNull(_mpb);
}
if (ldsds != null)
{
ldsds.BindResultData(_mpb);
}
else
{
LodDataMgrSeaFloorDepth.BindNull(_mpb);
}
if (ldclip != null)
{
ldclip.BindResultData(_mpb);
}
else
{
LodDataMgrClipSurface.BindNull(_mpb);
}
if (ldshadows != null)
{
ldshadows.BindResultData(_mpb);
}
else
{
LodDataMgrShadow.BindNull(_mpb);
}
var reflTex = PreparedReflections.GetRenderTexture(_currentCamera.GetHashCode());
if (reflTex)
{
_mpb.SetTexture(sp_ReflectionTex, reflTex);
}
else
{
_mpb.SetTexture(sp_ReflectionTex, Texture2D.blackTexture);
}
// Hack - due to SV_IsFrontFace occasionally coming through as true for back faces,
// add a param here that forces ocean to be in underwater state. I think the root
// cause here might be imprecision or numerical issues at ocean tile boundaries, although
// i'm not sure why cracks are not visible in this case.
var heightOffset = OceanRenderer.Instance.ViewerHeightAboveWater;
_mpb.SetFloat(sp_ForceUnderwater, heightOffset < -2f ? 1f : 0f);
Rend.SetPropertyBlock(_mpb.materialPropertyBlock);
}