After Effects :: Transparency / Alpha Great Mystery (IMPORTED PNG Sequence)
Mar 28, 2013
The problem: I am importing a PNG sequence into After Effects (CS 5.5), however AE refuses to see the Alpha channel contained within the sequence. Now before anyone jumps the gun and says, "But wait, PNG does not really support alpha, it just supports transparency!" Right, something I just learned, and still -- quite honestly -- baffles the heck out of me.
But anyway, another PNG sequence exported from the exact same program, imports into After Effects just fine with an "alpha channel" and all. I double-checked, and there is NOT an option in the program to export the PNG without transparency info.
Importing sample images from each sequence reveals the EXACT SAME THING ... both have transparency, but NEITHER have an alpha-channel per se.
1) why in the heck AE would interpret one's transparency, and not the other?2) Is there a way to FORCE AE to see the transparency of the one?3) IF not, is there something out there that will convert the PNG's with transparency to another format (TIF, TGA, PSD) with an alpha? I just don't want to have to re-render the sequences again.
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Jan 18, 2014
Right there in the topic, I can't figure it out. You can only choose millions of colors and trillions of colors when looking at the depth in the output module. And even if you pick 8-bits per channel in the render settings it still renders the files to 32-bit.
It's basically a (pure) white spinning star fading out gradually so there is no need to render it with that many colors.
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Apr 25, 2008
# The exact version of the Adobe Application you are running.
Adobe Photoshop cs3 version 10.0
# Your Operating System details.
Windows XP
# Amount of installed RAM.
2GB Ram
# Amount of free disk space.
~360 GB free
# Make/Model of Video Card.
nVIDia GeForce 7600 GS 256 mb
Hi,
I m working on photoshop using it to create clothing.
Usually i was working with the Dodge and Burn tool 3% after drew with white lighten brush a white effect than i usually start to work it out to create for example shiny? effects on black clothing.
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May 16, 2013
In autoCAD 2013 i have a sequence of multiple text fields e.g. (MP01, MP02, MP03, MP04..etc) i need to alter the numbers to other numbers. I used a command a few months ago but i cant remember what is was called! It selected the x/y direction and incremented the existing sequence to my chosen sequence (just incrementing the last numerical bits and leaving the text the same). Ive tried TCOUNT command and i couldn't get that to work with the text fields.
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Jun 28, 2013
I've been able to ignore the transparency in PNG images when needed by using "Layer>Layer mask>From Transparency" and then deleting the mask created.
However, importing an image sequence as a Timeline, this option is not available. What should I do instead? (Other than using After Effects to re-output my image sequence without transparency)
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Feb 16, 2004
I'm developing a tile based game, I have basic ground tiles, and above these tiles can be objects. My game engine supports objects with an alpha channel, where the alpha channel is used for transparency:
alphachannel 0 = completely invisible pixel
alphachannel 255 = opaque pixel
alphachannel between 0 and 255 means the object and the background tile below that are blended, like semi-transparency.
This is useful to give the objects soft edges, and for semi-transparant fire, ghosts, and other nice looking effects. Code:
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Mar 14, 2003
transparency and alpha channels. I'll explain what I want to do, and hopefully someone can tell me how. I'm creating an image in a 3d modeling program. I want to export an image file (Targa, 32 bit, with Alpha Channels) into photoshop, then extract the alpha channel(that being the black background in this case) so that i'm left with the actual image of the 3d model over transparency, with which I can use to layer on top of things created in photoshop. Ok, that said, i'll explain it one more way, in hopes to make it clearer. I'm doing weather graphics for a news program, and have rendered out a cloud in a 3d modelling program(3d studio max). I want to import this image of the cloud into photoshop, and layer it over graphics I created in photoshop, minus the background created in the exporting from the 3d program.
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Dec 3, 2007
I was wondering if someone could help me create a PNG that when overlayed on an image only shows when its on top of black. ie the image underneath is black and in some spots there is color. Wherever there is black I would like the overlayed png to show. Wherever there is color I would like to the overlayed png to be transparent.
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Dec 7, 2011
making a alpha channel transparency; Funny thing is. I made it work once a few days ago. I went to bed and forgot to write down how i did it (Tried everything, almost)
In the link right here [URL] n i have 4 files; Q3a_arrow_gimp_ver4.tga (TGA that works as i want it, you'll notice ALL the alpha channels have a black layer channel in the channels tab, how do i recreate that?) Q3a_arrow_methodtry.tga (tried to recreate with THIS tutorial [URL] with no success P.S. i tried loooads of tutorials but this recreation seems rather close to the working .TGA i need) Q3a_arrow.ai (sourcematerial all vector from Adobe Illustrator) Q3a_arrow.png (picture with transparency intact if needed for comparison)
So; Now... What i did to make the working picture was making a .PNG - drag it into gimp.. I recall doing some Alpha and or masking or selection thing with it, then rendered it for .TGA since Illustrator does not support the kind of .TGA i needed. Worked flawlessly in the engine where i use a function called alphafunc GE128 (blend with black as invisible layer and white as solid)
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Jun 29, 2013
Fireworks has so many horrible bugs, I am making the switch to Photoshop cs5.5 --- I have used Fireworks exclusively since 2001.Here's my question: {URL}....
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Jul 3, 2013
In PSP 8 I made a circular white clock face with black numerals on green background. I then saved it as a PNG, specifying the green as the transparent colour and specifying alpha channel.
It worked OK when viewed in my video editor, i.e. the green was transparent. But on opening it in PSP 8 I expected to see it displayed with the familiar chequer board background, yet it was a solid white.
So among many other PNGs it's impossible to tell that it does have a transparent area. Is this also the case in less ancient versions? What about other image editors - do they all have this weakness?
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Aug 14, 2005
I'm trying to do something that I could previously do with other image software. I want to 'paint' the transparency of a layer using the alpha channel. So when I paint black on the alpha channel it makes that part of the layer completely transparent, and white makes it completely opaque (and grey shades are in between). From what I understood of the help, this should be possible by just creating an alpha channel and painting in it. But when I try and then click back to display the RGB channel to look at the changes I've made, nothing actually changes. Whatever I seem to do to the alpha channel it doesn't actually affect the layer's transpancy at all.
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Aug 8, 2013
I think this is related to Xara's inability to export alpha transparency properly. I've talked about this before, somewhere. Feel free to find the old post.
The thing is, without a decent export the feature is largely useless isn't it? .Xar is almost never the destination format.
I can get round the edges issue by printing to PDF instead of exporting, but then the bounds of the original bitmaps are visible. So neither solution is any good at all. Surely this is a massive problem?
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Dec 6, 2011
png texture with alpha channel but the transparency seems to be white.
How do I let the transparency in the png texture look through to the background?(alpha blend)
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Nov 25, 2012
Basically, I am trying to use an alpha layer/channel to export a picture that is transparent except for a grass clump that is colored green over the alpha layer. So the picture looks like a solid green rectangle, but is actually a green blade of grass.
Problem is, I cannot get the alpha layer to work. I can't follow the tutorial as it is in photoshop, and random videos on-line haven't worked.
(Here is the tutorial: [URL]...... from 08:40 - 09:30)
(I have also attached my practice file as a TGA)
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Jun 17, 2006
How can I set transparency like when color is brighter it will be more transparent, eg. white is fully transparent, black is non-transparent, gray is 50% transparent, etc..
I would save png after that.
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Dec 12, 2012
I have removed the background from a photo using selection deleting to transparency via alpha channel. My dog was left. I then exported to png. When I try to upload the dog to use in a label, (Open Office), the back ground turns to white.
What am I doing wrong?
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Oct 21, 2012
Is there any way I can directly make a grayscale image into an alpha transparency channel?
I mean, NOT involving selection? Because selection by color to layer mask,is really difficult what I need to do the selection threshold.
Why is it easy to turn an alpha channel into a grayscale image but not the reverse?
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Dec 15, 2011
I already have an image file in png format..which I want to use as an application launcher icon for my android application.
The android specifies image with following properties for the launcher icon(Will need 4 different image to support different screen size in mobile devices)
Launcher icons should be 32-bit PNGs with an alpha channel for transparency. The finished launcher icon dimensions corresponding to a given generalized
Screen density are shown in the table below.
1. 36 * 36 px
2. 48 * 48 px
3. 72 * 72 px
4. 96 * 96 px
I would like to create 4 png files(with specifications mentioned above) from the already existing image file. How do I do that in GIMP.
I am completely novice to image editing(Never touched any image editing software before) and not sure how to achieve this in GIMP.
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Aug 20, 2011
For quite some time I've been trying to find the best way to remove a white background from images. I've checked out the sticky thread on this forum and as my image isn't of great quality and because it features quite a lot of white that won't apply.
Recently I found this tutorial which is supposed to work great (as seen in the comments). However, I think that because of a GIMP update that won't apply anymore somehow. I was hoping you guys might know what was causing it.
Everything works well until I get to step 7, where I have to select to Alpha. There it selects just the outlines, but my selection includes inner parts of the image, not just the background. And then after I invert and delete, the white that remains still has transparent parts that show up on the upper layer. So, am I doing something wrong with the Alpha to Selection, is that tutorial updated or is there a better way to remove the background from ie. a logo with just one background colour which isn't of great quality.
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Sep 23, 2011
Basically just want to make the middle separating line in the following image:
Identical to (same degree of horizontal fadeout into transparency):
I have spent hours on it trying to edit the original layer below the alpha transparency or adding layers, getting nowhere.
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Jan 4, 2014
I'm working on a project that requires creating an animation in After Effects that is then imported into Sprite kit using a numbered png sequence. I'm aware that using hashes [#####] allows you to add the amount of zeroes you want in the filename for numbering the frames, but is there any way to export without any zeroes?
(eg. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 rather than 01, 02, 03, 04, 05, 06, 07, 08, 09, 10)
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Aug 13, 2012
I converted all my FreeHand files. Some have transparencies. Illustrator shows the transparencies, but does not recognize them in the Transparency panel. It says they have 100% opacity even though they appear transparent. I assume this is just how they got converted. Is there any fast way to make them recognize their original opacity % as set in FreeHand?
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Mar 29, 2014
I am using After effects cs6 and when i try to choose a format there is no option to save as an image sequence. This goes for any clip I try to render. The picture below is where I am having the problem, under the format tab. There are only about 10 options under the tab and image sequence is not one of them.
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Apr 7, 2013
We all know AE can render a layered PSD image, but is there a way to output a layered PSD image sequence? Maybe a script? How about multi-layer EXRs?
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Dec 22, 2013
I have a folder of images that need to be shown show one after another, like a slideshow.
Towards the end, the images will be shown shorter and shorter, so the sequence goeds fatser and faster.
Is there a quick and simple way of doing this in AE? Or Premiere for that matter?
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Mar 8, 2011
I'm working with a JPEG image sequence, and have deleted frames frames at various points before bringing them into AE. Instead of skipping the missing frames, AE renders missing media frames in place of the ones I deleted, instead of just skipping them. Is there a way around this without having to manually rename all of the images so there are no missing numbers?
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Apr 8, 2014
When I import images as a sequence in AE CC (v.12.2.1.5), I select an image, then check the 'JPEG Sequence'. Sometimes I have folders that contain missing files, in that I case I also check 'Force Alphabetical Order'.
However, it seems that this is not working correctly now. Some part of the sequence is correct, but there are also some images that appear at random places in the sequence. Is this a bug? What should I do to avoid this?
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Apr 23, 2013
I need to generate a lightning effect and then export the frames to several PNG images.
I figured out how to do the lightning and how to export transparent PNGs, but I can't get rid of the lightning solid background (which is balck in my case).
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Mar 9, 2014
I have created a short (<3 seconds) video comprised of 2 layers. Each layer was filmed as a green screen, and I used Keylight in After Effects CC to create a transparent background. My ultimate objective is to use the clip to create a transition for use in ProShow Producer, as described in the link [URL]..... To do this, I need the main video file, and a second file containing only the alpha channel.
I have used Adobe Media Encoder to output a FLV, and told it to Encode Alpha Channel, as was suggested, but I only get the one file (the main video). How do I get the alpha file?
I am using AE CC.
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Apr 10, 2014
I have animated text where some words are black at 50% opacity and some words are white at full opacity. They are on a textured background. I need to give the other editors a version of the text married to the background and one that is just text with an alpha. When I export it and bring it into Premiere, the "married" version looks fine, but the black in the version of the text with alpha appears more transparent. I can fix this by changing the blend mode to Hard Light or Luminosity, but this alters the color of the white text slightly (and I should note that the blend mode in AE was normal). I can of course work around this by exporting my black and white text separately.
I am working on AE CC (ver12) and Premiere CC (ver7)
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