Is there any way beside a custom block renderer or a blank transparent texture to prevent the block from being rendered? As it is now,  I am rendering a model for my tile entity, but the block also renders.

In theory, you could make a transparent sprite for the block and register it similarly to glass, so the blocks adjacent to it will still render all faces.

 

Have a play around with it.

I was aware of that option. I was just hoping I didnt have to do that. Id rather not have to include a blank texture in my assets. It would be nice if there was a way to disable rendering of the block... Ill see what happens when I mess with the render type.

 

EDIT: Solved, changing the render type to -1 disables rendering.

public boolean shouldSideBeRendered(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5) { return false; }

Actually, your solution is better if since only certain metas of my block have a model... This way I can check the meta and only render the ones that dont have a model.