private float DesiredLodLevel()
{
float edgeLength = LodFace.GetEdgeLength(LodNode.CHUNK_RESOLUTION);
Vector3 scales = this.gameObject.transform.TransformVector(this.gameObject.transform.InverseTransformDirection(Vector3.one));
float maxScale = Mathf.Max(scales.x, scales.y, scales.z);
// float scaledEdgeLength = maxScale * edgeLength * this.lodProperties.heightGenerator.GetMaximumValue();
float scaledEdgeLength = maxScale * edgeLength;
float cameraDistance = Mathf.Sqrt(this.meshRenderer.bounds.SqrDistance(Camera.main.transform.position));
if (cameraDistance == 0f)
{
return(int.MaxValue);
}
Vector3 boundsPoint = Camera.main.WorldToScreenPoint(Camera.main.transform.position + Camera.main.transform.forward * cameraDistance);
Vector3 offsetPoint = Camera.main.WorldToScreenPoint(Camera.main.transform.position + Camera.main.transform.forward * cameraDistance + Camera.main.transform.up * edgeLength);
float unitVectorLength = offsetPoint.y - boundsPoint.y;
float edgeLengthAtDistance = unitVectorLength * scaledEdgeLength;
float tessellationFactor = edgeLengthAtDistance / LodNode.DESIRED_EDGE_LENGTH;
float lodLevel = Mathf.Log(tessellationFactor, 6f);
return(lodLevel);
}
void Start()
{
LodHeightGenerator.Properties properties = new LodHeightGenerator.Properties();
properties.strength = 0.28f;
properties.frequency = 1f;
properties.lacunarity = 2.3f;
properties.persistence = 0.40f;
properties.octaves = 8;
Perlin perlin = new Perlin(0);
this.heightGenerator = new LodHeightGenerator(perlin, properties);
this.material.SetTexture("_Gradients2D", PerlinTextureGenerator.CreateGradientsTexture(perlin));
this.material.SetTexture("_Permutation2D", PerlinTextureGenerator.CreatePermutationTexture(perlin));
this.material.SetFloat("_Strength", properties.strength);
this.material.SetFloat("_Frequency", properties.frequency);
this.material.SetFloat("_Lacunarity", properties.lacunarity);
this.material.SetFloat("_Persistence", properties.persistence);
this.material.SetInt("_Octaves", properties.octaves);
this.rootGameObjects = new GameObject[6];
this.roots = new LodNode[6];
for (int i = 0; i < 6; i++)
{
this.rootGameObjects[i] = new GameObject("Face (" + i + ")");
this.rootGameObjects[i].transform.SetParent(this.transform, false);
Vector3 up = LodManager.directions[i];
LodProperties lodProperties = new LodProperties();
lodProperties.gameObject = this.rootGameObjects[i];
lodProperties.material = this.material;
lodProperties.up = up;
lodProperties.heightGenerator = this.heightGenerator;
this.roots[i] = new LodNode(null, lodProperties, 0, up, LodFace.GetForward(up), LodFace.GetRight(up));
}
}
public static Vector3 GetRight(Vector3 up)
{
return(Vector3.Cross(up, LodFace.GetForward(up)));
}
