public void Execute(int index)
{
var chunk = Chunks[index];
var instanceBounds = chunk.GetNativeArray(WorldRenderBoundsType);
if (instanceBounds.Length == 0)
{
return;
}
// TODO: Improve this approach
// See: https://www.inf.ethz.ch/personal/emo/DoctThesisFiles/fischer05.pdf
var chunkBounds = (Bounds)instanceBounds[0].Value;
for (int j = 1; j < instanceBounds.Length; j++)
{
chunkBounds.Encapsulate(instanceBounds[j].Value);
}
ChunkBounds[index] = new WorldRenderBounds {
Value = chunkBounds
};
}
public void Execute(ArchetypeChunk chunk, int chunkIndex, int firstEntityIndex)
{
var worldBounds = chunk.GetNativeArray(WorldRenderBounds);
var localBounds = chunk.GetNativeArray(RendererBounds);
var localToWorld = chunk.GetNativeArray(LocalToWorld);
MinMaxAABB combined = MinMaxAABB.Empty;
for (int i = 0; i != localBounds.Length; i++)
{
var transformed = AABB.Transform(localToWorld[i].Value, localBounds[i].Value);
worldBounds[i] = new WorldRenderBounds {
Value = transformed
};
combined.Encapsulate(transformed);
}
chunk.SetChunkComponentData(ChunkWorldRenderBounds, new ChunkWorldRenderBounds {
Value = combined
});
}
