public static float RelativeHeightToDistance(Camera camera, float relativeHeight, LODGroup group)
{
float size = group.GetWorldSpaceSize();
if (camera.orthographic)
{
return(0);
}
var halfAngle = Mathf.Tan(Mathf.Deg2Rad * camera.fieldOfView * 0.5F);
var distance = size * 0.5F / (relativeHeight * halfAngle);
return(distance);
}
public static float DistanceToRelativeHeight(Camera camera, float distance, LODGroup group)
{
float size = group.GetWorldSpaceSize();
if (camera.orthographic)
{
return(size * 0.5F / camera.orthographicSize);
}
var halfAngle = Mathf.Tan(Mathf.Deg2Rad * camera.fieldOfView * 0.5F);
var relativeHeight = size * 0.5F / (distance * halfAngle);
return(relativeHeight);
}
private async Task <ForgelightActor> LoadNewActor(Adr actorDefinition)
{
await new WaitForBackgroundThread();
ForgelightActor actor;
// Attempt to find the model's Dme.
Dme modelDef = GetActorDme(actorDefinition);
if (modelDef == null)
{
actor = CreateMissingPlaceholder(actorDefinition.Name);
}
else
{
// Deserialization
MeshData meshData;
try
{
meshData = actorMeshFactory.GenerateMeshData(modelDef);
}
catch (Exception e)
{
Debug.LogError($"Could not create mesh {modelDef.Name}. {e}");
await new WaitForUpdate();
return(CreateMissingPlaceholder(actorDefinition.Name));
}
await new WaitForUpdate();
UnityEngine.Mesh mesh = actorMeshFactory.CreateMeshFromData(modelDef.Name, meshData);
Material[] materials = materialFactory.GetActorMaterials(modelDef);
assetManager.Dispose(modelDef);
Assert.IsNotNull(mesh);
Assert.IsNotNull(materials);
// GameObject "Prefab"
GameObject actorSource = new GameObject();
actor = actorSource.AddComponent <ForgelightActor>();
MeshFilter meshFilter = actorSource.AddComponent <MeshFilter>();
MeshRenderer meshRenderer = actorSource.AddComponent <MeshRenderer>();
// Assign deserialized data
meshFilter.sharedMesh = mesh;
meshRenderer.sharedMaterials = materials;
// LODs
if (actorDefinition.Lods.Count > 0)
{
float cullDist = actorDefinition.Lods.Max(lod => lod.Distance);
LODGroup lodGroup = actorSource.AddComponent <LODGroup>();
LOD lod0 = new LOD(1.0f, new Renderer[] { meshRenderer });
lodGroup.SetLODs(new [] { lod0 });
lod0.screenRelativeTransitionHeight = LODGroupExtensions.DistanceToRelativeHeight(cameraManager.UnityCamera, cullDist, lodGroup.GetWorldSpaceSize());
lodGroup.SetLODs(new [] { lod0 });
}
}
return(actor);
}
static float GetRelativeHeight(this LODGroup lodGroup, Camera camera)
{
float distance = (lodGroup.transform.TransformPoint(lodGroup.localReferencePoint) - camera.transform.position).magnitude;
return(DistanceToRelativeHeight(camera, distance, lodGroup.GetWorldSpaceSize()));
}