Why do Null objects get rendered?

BlitzMax Forums/MiniB3D Module/Why do Null objects get rendered?

siread (Posted 2007) [#1]

If I set a mesh to Null, it continues to get rendered. Is this right? Do I have to call HideEntity before deleting the mesh?

simonh (Posted 2007) [#2]

It gets rendered because a reference to it still exists in TEntity.entity_list, which is a global list of all entities. So the GC collecter never takes it away. Use FreeEntity to delete it properly.

siread (Posted 2007) [#3]

Ah, thanks. :)

siread (Posted 2007) [#4]

I've noticed that if I FreeEntity(camera) it still exists in TEntity.entity_list, causing the program to crash on the next UpdateWorld. I am missing something?

ima747 (Posted 2007) [#5]

you need atleast one camera to be able to render. and you need atleast 1 light to be able to see things as well unless you set the ambient light up

siread (Posted 2007) [#6]

I have 2 cameras though, and when I free the second one it crashes. No problem though, I can just make them both global entities.