[comp.sys.amiga] WritePixel

mills-cl@polaris.cis.ohio-state.edu (christopher mills) (01/24/88)

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	Hello, again.  My friend and I have been working for a great long time
on this neeto-keen ray tracing program.  However, we seem to be having an
ittermittant bug that someone here might be able to figgure out.

	We are using a backdrop HAM mode window.  When the window is full
screen, the program locks up on the first WritePixel() call, doing a
Wait(SIGF_BLIT).  This only happens when the window is full screen -- one
pixel less and everything works fine.

	Anyone have any idea what may be wrong?  Is it a problem with
WritePixel()?  I don't think we're doing anything strange, the stack is
plenty big, etc.

	If we fix this, I've been toying with the idea of posting this to the
net.  Could someone tell me what is involved in doing this?  It's a great
program; it supports spheres, polygons, cones, cylenders, disks, clipping
planes, lights, etc., with glossy, shiny, flat, mirror or luminous surfaces,
wireframe preview mode with red-blue 3D, etc., etc., etc...


				Chris Mills

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