Access to other layers

Hi,



know my second question.



How can I access pixel data from another layer?

FilterRecord let me only access the current layer and its channels.



Say I wont to write a plug in that combines all layers of this image like ''merge down'' does. I could I archive this? Or is this impossible?



Is this the reason why ''lighting effects'' filter uses an alpha channel for bumpmapping and not an other layer?



Greetings Thomas
Access to other layers
See the poor mans type tool example filter project.



You will need to use the channel ports suite to access the other layers.