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Author Topic: Animate Direction of Lights with Effect or Map  (Read 1974 times)

rob-bs

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Animate Direction of Lights with Effect or Map
« on: October 08, 2023, 09:47:05 AM »
Hello all,

I am working on a scene in which I'd like to animate the orientation & movement of a large number of V-Ray Lights using Forest Pack. I am scattering the lights along a spline using the "path" distribution method, and I am controlling the orientation of the lights with the transform controls.

There are a few ways I can animate the movement of any object - for example, with an animated noise map in the transform roll-out, or by using an effect (3-axis look-at effect) combined with an animated helper object.

These techniques work fine for normal geometry, but it seems that Forest Pack does not behave the same way when the reference objects are V-Ray Lights. In my viewport before rendering, the lights will move according to whatever technique I apply, but at render time the Forest Pack-generated lights are static, and they do not change according to the movement I am previewing in the viewport.

Is this a known limitation, or am I doing something wrong?

I am using Forest Pack 7.1.2. I know that the Light-scattering features of Forest Pack have been updated since this version, but my studio has not updated to the latest versions yet.

Is this even possible, to animate the direction & orientation of the lights? Thanks!

Michal Karmazín

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Re: Animate Direction of Lights with Effect or Map
« Reply #1 on: October 09, 2023, 09:16:05 AM »
Hi,

Upon my quick test, the mentioned setup works just fine in the latest version (FP 8.2.4 & V-Ray 6 Update 1.2) - since the Forest Pack 7.2.1 we added support for native light instancing in V-Ray (which requires V-Ray 5.2 or greater).

Best regards,

rob-bs

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Re: Animate Direction of Lights with Effect or Map
« Reply #2 on: October 09, 2023, 05:57:18 PM »
Ok, great! Thank you for the info. I've been meaning to update our systems, so this is just one more reason to do so. Thanks again.