Re: [PD-dev] [GEM] cvs checkins

Daniel said:

• I'm going to implement some control over window clearing into gemwin.

This can be used to do multipass rendering and various other things. I'm proposing a couple of changes:

• "clearmode f" message to [gemwin] to set which buffers are cleared

automatically in each render cycle

• [clear] object to be inserted into the rendering chain to force a clear

at

that time.

A first pass at this is now in CVS.

The "clearmask N" message can be passed to a gemwin to set the clearing behaviour. "N" is simply cached and passed directly in the glClear call - generate it using the GLdefine mechanism and GL_COLOR_BUFFER_BIT, GL_DEPTH_BUFFER_BIT etc..

[GEMglClear] can be used in other gemlists to control buffer clearing.

Daniel