Raytracing Camera Trick

[leigh]

Sounds like a load of bollocks to me :surprised

[LeMartialou]

NT forum thread:

http://vbulletin.newtek.com/showthread.php?threadid=9683

directlink to the tutorial:

http://www.funnyfarm.tv/thelab/rendertrick.htm

:wavey:

[digitalfog]

http://www.funnyfarm.tv/thelab/rendertrick.htm

[leigh]

How bizarre :surprised

[Remi]

This works? How can this be:surprised

[scotttygett]

There is probably default cancellation of some ray-tracing. I made a helmet for a mars spaceman, and his eyes changed from blue to red.

[Mattoo]

It is a load of bollox - to a degree.

There was a thread about this before. You can avoid doing this just by making sure that your surfaces are tesselated evenly - relative to the camera.

On the most part if I recall, most people found this "trick" useless and it only slowed down their renders. Just make sure you've got plenty of polys in there so the renderer can do it's job and it'll cull the occluded ones.

[WU2]

there was already a thread about this before if you search.... I have personally tried it and I did notice some speedup in certain scenes, but the drawbacks outweight the benefits... The shading noise reduction doesnt' work right and there were some other strange things about the render quality if I remember right

[JoshD]

Just remember that he said found the trick working in a scene where he was shooting out a window of a building looking at other buildings with a lot of transparent windows. I believe it was agreed that this can help quite a bit on scenes that have a lot of different transparent items but not so helpful in other instances.

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