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Activity Forums Adobe After Effects AE 3D box shaddow glitch – annoying!

  • AE 3D box shaddow glitch – annoying!

    Posted by Gordon Miller on November 7, 2010 at 7:09 pm

    Hi Guys,

    Just needing some help. I have created an intro using a rolling dice on a crisp white background. The dice is a scripted 3D box. I have chosen the cast shaddow from the box and accept lights on the floor of my comp – but the AE shaddow creates what looks like spikes of shaddows (hard to explain). A cube should have a nice soild shaddow, but AE almost interps this not as a ‘box/cube’ but thin panels, so when it tumbles on it looks like shafts of thin strips of grey – not a shaddow – make sense to anyone? I have overlaped the panels, created a manual 3D cube – all does the same – sucks as it took ages to set up and create an into to find out the HD render looks like crap. Need the shaddow as it will just float on this white space….. any suggestions?

    Kevin Camp replied 15 years, 5 months ago 4 Members · 5 Replies
  • 5 Replies
  • Jody Linton

    November 7, 2010 at 9:50 pm

    Hi, have you tried adjusting the “diffusion” settings for your lights maybe?

  • Todd Kopriva

    November 8, 2010 at 1:37 am

    Post a screenshot.

    ———————————————————————————————————
    Todd Kopriva, Adobe Systems Incorporated
    Technical Support for professional video software
    After Effects Help & Support
    Premiere Pro Help & Support
    ———————————————————————————————————

  • Gordon Miller

    November 8, 2010 at 6:46 pm

    Yeh I have tried that – it takes it down a bit, but I still get ‘spikes’ of shadows. If I take the diffusion right down it seems to help, but the only problem is the shadow looks like a vector shadow, not soft and realistic.

    Got asked to upload a screen capture – I will see how to upload an image – somewhere here I’m sure.

    Any other tips?

    G.

  • Jody Linton

    November 8, 2010 at 7:42 pm

    Hi, you could also try changing the “Shadow Map Resolution”, I do it in C4D quite often as it reduces “artifacts” object edges and when objects get close to each other. Go to: Composition settings > advanced > options, and change the map resolution from “comp size” to something bigger like 2000pxl.

    Cheers

  • Kevin Camp

    November 8, 2010 at 8:42 pm

    you might also try adding a few diagonal planes within the cubes to help fill out the gaps in the shadow.

    or, since it sounds like your background sounds like it is very simple (just white), you could try setting the planes of the cubes to cast shadow ‘only’, then render only the shadow on white, bring that back into ae and see if you can fix it by blurring it (you did mention that a harder shadow rendered better, this would allow you to soften that shadow, post-render). then, of course composite the cubes back in…

    or completely fake the shadow with a soft oval mask on a black solid.

    Kevin Camp
    Senior Designer
    KCPQ, KMYQ & KRCW

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