CGTalk - light sensors?

chrleon

03-31-2003, 03:16 PM

I was wondering if there is some way to automate the closing and opening of a shutter, based on light hitting it.

I was thinking, since we have the Plugin BAKER, that bakes illumination, based on the amount of light hitting the polygons, there should be a possibility to make a plugin that registers the amount of light hitting it and then hooking that up to a morph target that tells the pupil to close. Is this even remotely doable in cinema r7 with expressions. Not afraid to do a little coding, but I can't do it by myself..

I have r7, by the way..

I don't want to keyframe lots of this. (http://www.3djegrad.net/forum/anim/iristest.avi)
Rendered in Cinema 4D r7.

Thanks in advance.

Srek

03-31-2003, 03:47 PM

Hi,
in R8 that is no problem using the PLight node (Part of TP). It can be used without any particles and will calculate light intensity for any given point in space. Using the MonoFlop node you can easily create that iris effect.
Regards
Srek

Pate

03-31-2003, 03:47 PM

Hi!

I would need something similar, a way to detect the amount of light hitting a polygon. I think there was a thread about a light meter a few days ago, I haven't yet looked into that. I am also thinking of diving into COFFEE and trying to figure out a way to achieve this that way..

I still have other things to finish before I need to look into this further, I'll post here if/when I get something done.

In the mean time, let us know if you figure out a solution yourself!

Pate

JIII

03-31-2003, 04:28 PM

Yeah it seems that in RL8 this would not be too difficult.

good luck with 7 you guys.

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