private void LateUpdate()
{
// find which lod this object is overlapping
var rect = new Rect(transform.position.x, transform.position.z, 0f, 0f);
var idx = WaveDataCam.SuggestCollisionLOD(rect);
if (idx > -1)
{
if (_mpb == null)
{
_mpb = new MaterialPropertyBlock();
}
_rend.GetPropertyBlock(_mpb);
var wdcs = OceanRenderer.Instance.Builder._shapeWDCs;
wdcs[idx].ApplyMaterialParams(0, _mpb);
int idx1 = Mathf.Min(idx + 1, wdcs.Length - 1);
wdcs[idx1].ApplyMaterialParams(1, _mpb);
// blend LOD 0 shape in/out to avoid pop, if the ocean might scale up later (it is smaller than its maximum scale)
bool needToBlendOutShape = idx == 0 && OceanRenderer.Instance.ScaleCouldIncrease;
float meshScaleLerp = needToBlendOutShape ? OceanRenderer.Instance.ViewerAltitudeLevelAlpha : 0f;
// blend furthest normals scale in/out to avoid pop, if scale could reduce
bool needToBlendOutNormals = idx == wdcs.Length - 1 && OceanRenderer.Instance.ScaleCouldDecrease;
float farNormalsWeight = needToBlendOutNormals ? OceanRenderer.Instance.ViewerAltitudeLevelAlpha : 1f;
_mpb.SetVector("_InstanceData", new Vector4(meshScaleLerp, farNormalsWeight, idx));
_rend.SetPropertyBlock(_mpb);
}
}
public bool SampleDisplacement(ref Vector3 worldPos, ref Vector3 displacement)
{
int lod = WaveDataCam.SuggestCollisionLOD(new Rect(worldPos.x, worldPos.z, 0f, 0f), 0f);
if (lod == -1)
{
return(false);
}
return(OceanRenderer.Instance.Builder._shapeWDCs[lod].CollData.SampleDisplacement(ref worldPos, ref displacement));
}
public bool SampleHeight(ref Vector3 worldPos, ref float height)
{
int lod = WaveDataCam.SuggestCollisionLOD(new Rect(worldPos.x, worldPos.z, 0f, 0f), 0f);
if (lod == -1)
{
return(false);
}
height = OceanRenderer.Instance.Builder._shapeWDCs[lod].CollData.GetHeight(ref worldPos);
return(true);
}
public void PrewarmForSamplingArea(Rect areaXZ, float minSpatialLength)
{
_areaLod = WaveDataCam.SuggestCollisionLOD(areaXZ, minSpatialLength);
}
public void PrewarmForSamplingArea(Rect areaXZ)
{
_areaLod = WaveDataCam.SuggestCollisionLOD(areaXZ);
}