reversed shine effect ..like rays going from projector projecting to screen

[Tobias Pfeiffer]

shine is a good plugin for this job.
is the projecting light source out of frame or visible? if it will be visible you need to cheat a bit, cause when you scale the projected footage to a really tiny size, there will be nothing left to project for shine.

maybe thats why you are trying so hard to do it.

payton

[Roland R. kahlenberg]

You will want to llok at Trapcode’s Lux for the job. Serge has a pretty good technique that uses AE’s built-in Beam plugin – do a search for that at the COW.

HTH
Roland Kahlenberg
broadcastGEMs
customizable animated backdrops with Adobe After Effects project files

[Mirek]

yeah…dads the problem…the shining source is at the bottom of screen and I need it to project some text on screen

[Mirek]

do you remember what topic did it cover ? i did some search but had not found that post… ?

[Tobias Pfeiffer]

please post the link here if you found it.
im pretty curious how to force lux to pick up a layers color for simulating projection. cant imagine how to do that.
thanks,
payton

[Filip Vandueren]

the threads discussed are these I think:

https://forums.creativecow.net/cgi-bin/new_read_post.cgi?forumid=2&postid=115974&archive=T

https://forums.creativecow.net/cgi-bin/new_read_post.cgi?forumid=2&postid=787012&archive=T

However this is just for fake a single coloured glowy lightcone using beam with some glow and Ball action for some dusty particles floating around in it.

No True Volumetric Light casting a projection.

You might be able to fake it using loads of 3d layers that become progressively larger and more transparant with a radial blur thrown in for smoothing

[Vince Becquiot]

You could also play with Lux and fractal noise (on the Lux layer)

Vince

[Mike Clasby]

Lux is the slick way to go, but if you

[Mike Clasby]

For my other 2 cents, this is fast and gives you grading within the beam that match the layer being projected.

Dup your layer (was it text?)

To the dupped layer apply
CC Radial Fast Blur
Center: move up til it looks right
Zoom: Brightest (for text)
and
Distort Corner Pin. Pull the corners around to a tight projector and the other end to touch the original layer.

This might work for you, or maybe not, but at least it was quick and has the layer

[Filip Vandueren]

I’ve been meesing with this for a few hours and I’ve come up with a pretty convincing Volumetric Faker.

It has (still) some drawbacks (it gets too bright in some angles and too dark in others)), but it works.
Check it out:

the basics:

start with a 3d layer of your movie or precomp, think of it as the projection on a wall
and think of it’s anchorpoint as the position of the projector.

You’ll want to move the anchorpoint far away from the layer itself in the Z-axis.

add a camera to ‘look at your projection’ or maybe animate it.

Duplicate Camera and projection layer and precompose them.
you might want to pick whip all animated properties of the cam in the precomp to the cam in the original, so that when you alter your camera’s animation in your original, the copy clones it.

Anyway, the trick is now to set up a lot of duplicates of the projection rangin in scale from 0-100 % (or less), that range in opacity from 100-0%. (I used some expressions for this)

Because the Anchorpoint represents the projector, simply scaling will result in ‘intersections’ of the lightbeam, it all automatically lines up.

So this gives us a kind of posterized Volumetric beam, if you will.

Add some Shine or Fast Radial Blur to that for smoothing, (the Center point of the Shine is set to the Anchorpoint of the layer using a layer space transformation expression), and you’re practically done. Just change the mode of your precomp to “Add”

You can download a comp here to try it out:

https://www.vandueren.be/forumstuff/volumetric/