Original Post
im trying to achieve a "cutaway" effect on my wall geometry using shaders, but running into all kinds of fun.. the picture should show what im after... anyone have a clever way of doing this? 
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cutaway shader.. help??
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wait a minute, this can be done in a manner not unlike stencil shadows, right?
-render everything non-cutaway-capable normally
-render cutaway candidates to depth
-render cutaway volume to stencil using zpass technique (unlikely that the
camera is going to get inside the volume)
-render cutaway candidates again, where stencil == 0
have I missed something?
am i right in thinking that i can achieve the "border" by doing this again with a slightly smaller volume?
-render everything non-cutaway-capable normally
-render cutaway candidates to depth
-render cutaway volume to stencil using zpass technique (unlikely that the
camera is going to get inside the volume)
-render cutaway candidates again, where stencil == 0
have I missed something?
am i right in thinking that i can achieve the "border" by doing this again with a slightly smaller volume?
here it is, working. comments?
I think it looks good. Congrats on coming up with a solution to it yourself :)
-Mezz
-Mezz
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