setbuffer

BlitzMax Forums/BlitzMax Programming/setbuffer

dynaman

(Posted 2004) [#1]

Is there a way to have graphics commands, other then writepixel, work directly on an image or pixmap? I know I could draw to the backbuffer and then do grabimage but I'm a lazy slob...

I was also wondering if the drawoval can draw just the outline and not have it filled in.

Todd	(Posted 2004) [#2]

I haven't seen anything to replace SetBuffer, so I think GrabImage is the only way to do it now, but I could be wrong.

As for drawing the oval's outline only, you can just set the glPolygonMode to GL_LINE, and it will be rendered as a line rather than a filled polygon. You should also set it back to GL_FILL when you're through. For example:

Function DrawOvalOutline(x#, y#, w#, h#)
	glPolygonMode GL_FRONT_AND_BACK, GL_LINE
	DrawOval x, y, w, h
	glPolygonMode GL_FRONT_AND_BACK, GL_FILL
End Function

dynaman

(Posted 2004) [#3]

Thanks! I wasn't even thinking of looking at the gl commands.