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Activity Forums Adobe After Effects Sunrise from space

  • Deadittex

    July 18, 2006 at 11:13 pm

    Okay, see the problem I have when working with after effects lights is two fold…I notice it is hard to create flags and nets for them, also the fact you cannot place thenm directly behind a layer sucks….Which for your project is the dificulty… here is whatI suggest…

    step one- your globe, draw a mask around it to isolate it from the background, duplicate theis layer and invert the mask around the globe on one of the layers.. now name your layers globe and background. using mask expantion shrink the globe mask about three to five pixels and feather about the same.. on the background layer expand the mask and feather, you will now have qa sliver of background showing from between the two …

    Step 2 – create a solid layer of a pale yellow, or orange your call, who knows what color the sun is, (Technically its 5800 degrees Kalvin and hence orange, but who cares about thatwe are playing with pixels here) so make two solid layers of the same color on place both behind the layers from step one. with the lower of the two on the time line highlighted go to effect>noise and grain(something?) >Fractal noise (this is going to give you a bubbling frothing look)randomly key frame the H-E double hocky sticks out of this effect (this is fun to do) Oh you will haver noticed by now this also turned your beautiful orange layer to grey scale(Why? ask the programmers) But never fear that is whatthe second of the solids is for place it over the top and use a blend mode (I like screen, overlay, softlight, or darken for this; my preferance.)

    Step three (3) – mess with the feathereing and expansion of both of the maskes from step one, very minutely adjust them in a sway, up down up down , try to keep them from ever touching to tightly but … you know have a little fun… This is going to give it a eiry glowing effect, glow strobe? (you know whatI mean)

    STEP 4 – – – Precomp – – –

    ((sorry about the break I had to use the bathroom)) where was I …. ?

    Step 5 – New comp same seetings as the old – two solid layers both black… make one into a stencil alpha – opps first create them into masks circular the same size as the globe.. Sorry, my bad, forgot to tell you that(also don’t let5 them overlap yet even if this means one of them is off screen partially — (I may be wrong on stencil it may be sillowette I am not looking at the thing right now.. Basically the one that makes the layer you are doing it two vanish, and the other one still be there…)) Okay? — ( for now I will call it the stencil, cause sillowette takes to long to spell…K?

    Step 6 – move the stencil which should be the higher layer on your timeline slowly(Or fastly (at the rate you want the light to spread, over the globe)).

    *once this is done watch it… make sure it moves throught eh phases of the moon like you want it too ..

    STEP 7 – Precomp

    step 8 – take the second Precomp into a comp with the first Precomp… (I must be really board, hope your enjoying this …)

    step 9 lay precomp 2(moon) over precomp 1(ring) you should still see the glowing ring under the “Moon” pre-comp but as the motion of the “Moon” Precomp acts in your main comp your earth “Globe” should be reveiled…

    Hope this works for you … later..

  • Tony Kloiber

    July 19, 2006 at 2:42 pm

    Well, If CC Sphere makes use of comp lights and makes an actual 3d object you could get rid of the luma matte and use Lux from trapecode. If CC Sphere doesn’t use comp lights then keep the matte but it does not need to be a CC Sphere object as well, it could just be a layer with a round mask the shape of the planet. The “Sun” could still be a light with Lux. If you don’t have Lux or Shine you can make you own light. Mask a solid layer with a circular shape and feather the mask. By animating size, position and feathering you should be able to create a sun. This layer would be behind the planet layer. Behind this transition from a black “night” layer to a blue “day” layer surrounding your planet.

    If you have you plant looking like you want you could pre-render that as a day object and then use the other elements to transistion from night to day.

    TonyTony

  • Chris Smith

    July 19, 2006 at 4:05 pm

    As far as 3D sphere rendering time, I would isolate each elemet that uses 3D sphere and render them out seperately. Then bring those renders into a comp and actually do the compositing then. Just like standard workflow for 3D. Render out all your elements and just use AE to do the actual composite. You’ll find that you can work a ton quicker so it’s not re-rendering a CC Sphere everytime you change something simple.

    [deaditteX] “(Technically its 5800 degrees Kalvin and hence orange, but who cares about thatwe are playing with pixels here)”

    Well, the sun is only percieved as 5000 to 7000 kelvin because of the bluish atmosphere of the Earth so being in space makes it an irrelevent number. And of course what color Kelvin is is relative to where you consider white in your project. If white is “balanced” at 5800 then the sun is white and for orange you would need to drop to below 3500 Kelvin. If you are balanced at around tungsten (3200) kelvin, then 5800 looks quite blue.

    If we lived on Mars with a reddish atmosphere, none of those numbers make an ounce of sense. Same with in space.

    Chris Smith
    https://www.sugarfilmproduction.com

  • Deadittex

    July 19, 2006 at 8:56 pm

    you are of course right about the Kalvin thing… My bad….I was thinking on the effect of shooting tungstin balanced stock outside when I said orange…

    ‘The wheel weaves’

  • Deadittex

    July 19, 2006 at 9:00 pm

    Grrg, stop reverse that, daylight balanced indoors under tungstine, would of course be what I ment..

    ‘The wheel weaves’

  • Dorel Iordache

    July 19, 2006 at 10:55 pm

    Thanks all for your very useful replies!
    Chris, thanks for pointing out that I can always pre-render to speed up the previews (I should have thought of that 😐 )

  • Chris Smith

    July 20, 2006 at 1:36 am

    Nope, you said it opposite. If your using tungsten balanced film, daylight would be very blue. 5800 kelvin light under tungsten balance (3200) is blue.

    You are thinking of film/video balanced to daylight and using 3200 light which would be orange. But once again in space it doesn’t apply.

    https://en.wikipedia.org/wiki/Color_temperature

    Chris Smith
    https://www.sugarfilmproduction.com

  • Deadittex

    July 24, 2006 at 9:32 pm

    well yeah beacause of the totall lack of temperature at all in space due to the lack of enviroment… Then again, a spaceship exploding or fireing a cannon in space would be completely silent, but if you are puuting togetehr a space battle … you add sounds. I take your point and your meaning and respect it because I respect physics it keeps my feet on the ground after all (and while sometimes I curse this phenomina, I have come to appreciate it) however we bend the rules of physics for entertainment purposes that is my ppoint I guess…

    ‘The wheel weaves’

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