Kevin Camp
Forum Replies Created
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one note: if you use the unmult effect, i think you will need to pre-comp your fractal noise layer and apply unmult to the pre-comp.
Kevin Camp
Designer – KCPQ, KMYQ & KRCW -
you could create your alpha in photoshop by copying the image and pasting it in the alpha channel. since it is a sequence, you could create and action to do this, and use that to create batch process.
you could do a similar process in after effects, using the fractal noise as a track matte and re render the sequence, making sure the render settings are set to render, rgb+alpha, millions+ and straight-unmatted. if you want some of the fractal noise detail to act as shading also, duplicate the noise layer, and for the lower layer, choose luma matte from the track matte pulldown. if you just want the ‘fill’ as a solid color, with only the alpha creating the detail, add a solid (pick your color, maybe white), move that below your noise layer then choose luma matte as the track matte for you solid layer.
or the easiest way, find an effect called unmult (free), download and install it. when you apply the effect, it will key the black areas out. then render with the alpha settings mentioned above.
Kevin Camp
Designer – KCPQ, KMYQ & KRCW -
so the avi you have was previously keyed… and the edge problem was there before you added the two color adjusments, right?
this isn’t sounding like a common problem, and the problem may have been with the original footage or keying process. it’s a little difficult to choose the best route to go without being able to see the footage.
i think that you might want to try and key out the edge, but gray is not a great color for keying since gray is a common value and you will be keying areas you don’t want to lose. because of that, i think you will want to duplicate your footage, hide the lower duplicate and apply minimax to the top one. set it to operation: minimum; channel: alpha and radius to a value that will remove the edge completely (don’t worry about loosing to much of the subject, this layer is to maintain the ‘core’ detail). if you need to soften the alpha at some point to blend it to the lower duplicate, try channel blur, bluring just the alpha.
now, on the lower duplicate, apply a keying effect… color key is a simple one, just use the eyedropper to select the color that you want to key out, try adjusting the other 3 settings to see if you can remove the gray edge.
Kevin Camp
Designer – KCPQ, KMYQ & KRCW -
you are talking about a fringing or halo around footage that you keyed, right?
it would help to know what effect or effects you used to key the bluescreen footage, but you may be able to just tighten the key with simpler choker, or possibly try remove color matting.
some keying effects, like keylight, have built in edge color removal features that are usually set to a very neutral gray, but this can be set to another color to help blend your edges. also, keylight will allow color adjustment of just the edges. additionally, there are effects like spill supressor that may be effect the edge color, but we would need to know more about how the footage has been effected already.
Kevin Camp
Designer – KCPQ, KMYQ & KRCW -
is your 720×480 comp using a square pixel setting…? or, is your 640×480 going to be a non-square pixel format?
720×480 would normally be a .9 par… 640×480 is most often a square pixel format for viewing on computer monitors and some old nle and broadcast playback systems.
if that is the case, then droping your 720×480 non-square pixel comp in to a 640×480 square pixel comp should work quite well… you’ll only be losing a few pixels of the right and left edges, or scale the nested 720×480 comp to 98.8% to fit in the square pixel comp (you could scale just the x value, with minimal distortion).
Kevin Camp
Designer – KCPQ, KMYQ & KRCW -
it has been a while since i used 5.5, but i think you will need to create text with the basic text effect in the effects window (or menu). i think it was 6 or 6.5 that introduced a text tool similar to photoshop/illustrator.
Kevin Camp
Designer – KCPQ, KMYQ & KRCW -
as per my response to your post in the other basics forum, disabling opengl when troubleshooting opengl accelerated effects like tint may help.
and if you do have an intel-mac, the cycore effects are unstable in ae7 too (i’m sure its related to the powerpc emulation envolved in running ae7). so beware and save often when using those effects.
Kevin Camp
Designer – KCPQ, KMYQ & KRCW -
in the ouput module settings, are you choosing the image sequence option from the format pulldown menu (at the top of window) or by clicking format options in the video output section and choosing the image sequence from the compression type pulldown menu?
Kevin Camp
Designer – KCPQ, KMYQ & KRCW -
its hard to help troubleshoot these issues without knowing anything about your system…
sata and sata2 should give you excellent data rates for single drives and raid0. you should be able to find reviews and comparisons for various host adapters and drive setups for a variety of manufacturers online.
if you want to be safe, try using a drive enclosure and host adapter from the same manufacturer, and use a drive either supplied or recommended by that manufacturer. that way you can ensure that the setup has been tested and approved together.
Kevin Camp
Designer – KCPQ, KMYQ & KRCW -
i’m going to guess your using an inel-mac…
whether you are or not, try disabling opengl in the after effects previews pref.
there are about a dozen opengl accelerated effects in ae (see the help menu for a list… tint is one of them), and there is a bug when running ae on intel-macs and using opengl effects that causes a crash. you can, however, apply those effects to adjustment layers and ae will not crash. other opengl accelerated features, like motion blur and blending modes work fine, but you’re life will be easier if you just disable opengl previews… and you probably won’t even miss it.
Kevin Camp
Designer – KCPQ, KMYQ & KRCW