Reflections in the 2 or 3 mirrors

Explanations, Walk through, tips and techniques related to LightUp
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jupiter24
Posts: 6
Joined: Thu Jan 15, 2015 1:11 pm

Reflections in the 2 or 3 mirrors

Post by jupiter24 » Fri Apr 24, 2015 1:02 pm

re hello, another : The reflection of a mirror in another mirror remains in black. and the final question: what's this "Light Sprite" Thank again.
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LIGHT SPRITE.jpg
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REFLECTION MIRROR IN THE OTHER MIRROR IS BLACK.jpg
REFLECTION MIRROR IN THE OTHER MIRROR IS BLACK.jpg (104.53 KiB) Viewed 4804 times

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AdamB
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Re: Reflections in the 2 or 3 mirrors

Post by AdamB » Sun Apr 26, 2015 5:07 pm

LightUp is a 'realtime' renderer meaning it can calculate all the lighting for every pixel 30 times per second. This means you can move the camera smoothly around the model and see correct reflections.

Reflections requires LightUp to calculate not just what you can see but also what is reflected in the mirrored surfaces, so we limit reflections to 1 bounce. So the mirror reflection of the mirror reflection shows black.

You could try grouping an IrrCache with some mirrors which are much faster.


The $LightSprite material is automatically added by LightUp for its PointLightSource components. It can be ignored.

Adam
Developer of LightUp http://www.light-up.co.uk

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