Xara :: How To Export Alpha Transparency Properly
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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Jul 4, 2013
Reading the Help document it says that transparency in a document is rendered as a bitmap when printing because PostScript can't handle it. This is also the case when exporting to certain file formats.
Isn't there a better solution to this? There are some truly magnificent tools in Xara and I'm sure this means that the technology is there to render documents in a suitable form when printing and exporting.
I've just tried to get a simple logo using some flat transparency from Xara into a Microsoft product and the transparent parts have given me big headaches as I want a true vector solution. The only way I found to work was going via Adobe Illustrator. If Illustrator can do it then why can't Xara? Isn't there some way that Xara can analyse the parts with transparency and create new vector objects where possible?
How does everyone else handle this - do you all simply ignore the transparency tool and work without it?
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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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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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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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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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May 22, 2011
Any tricks to be learned for getting these smaller in file size?I have a 450px by 543px that I want to use as the main log of my website but the file size is...get this...you ready 200k+
I really need it to be the size that it is in pixels, I also need the transparency.URL...
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Oct 27, 2011
I'm exporting a design for the print shop, and have the following problem:
I have converted all colors to CMYK, and that's fine so far... however, I have imported a few PNGs with alpha channel into the design, and in the PDF output, these create a 'box' around them that seemingly has a flattened RGB version of whatever was behind it + the PNG image.
Same happens with any objects that have drop shadows.
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Mar 30, 2012
transparency bug.jpg.....transparency is not applying properly for the inverse white to black gradient, check the attachment.
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Jan 17, 2013
I've created a .png logo but when it displays on the website, it doesn't look clear. Do i need to change settings when exporting it? The site is [URL] and il upload the logo.
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Apr 23, 2008
I'm having the hardest time trying to get an flv with transparency.
I have a series of numbered photoshop files. Each file contains one partially transparent layer (no mask), and when I open the files as an image sequence, the transparency looks good. However, when I export to FLV with Alpha enabled, my FLV doesn't seem to have an alpha channel.
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Mar 17, 2011
I have no problem with transparency in Xtreme. I cannot seem to get it to translate to the internet. When I convert to PNG or Gif I get no transparency just a black rectangle.
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Oct 23, 2013
Is there a way to export an alpha channel to apply it to new file?
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Jun 8, 2012
I am using X4 and am familiar with chroma keying and setting backgrounds but I am trying to export the video with the alpha channel so I can create a flash file with transparency to use for walk on video (where the person appears in the foreground of the site with wmode set to transparent).
I have Corel Motion 3D and some of the kbase was suggesting I needed to use that to export with the alpha channel but it would be a lot simpler to be able to push it out from X4. Even if I can do it as non-flash file I can take it to something like Ijoysoft and convert to flash.
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Jun 28, 2013
I have an image that I need to export as a PNG with a transparent background.
In PGD 2013 it works fine - PNG is saved with a transparent background.
However, in PGD 9, it saves with a white (non-transparent) background.
There was a warning dialog about transparency pop up the first time I used PGD 9 to export the PNG, but I can't remember exactly what it said - something about transparency not supported for this type of file I think. I chose to ignore always and I can't find anywhere I can re-enable that option to see if it fixes things.
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Sep 24, 2013
Been doing this for years... from After effects CC Composition, Save frame as, File, Photoshop, RGB+Alpha etc - and its worked fine exported with transparency like you'd expect.
Updated Photoshop CC this morning and suddenly alpha channel not being recognised...Bug...or have I gone mad in the last 24 hours??
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Apr 9, 2008
how i can export o photo that contains alpha chanels to a program that reqires the GIF format. Am using CS3.
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Feb 1, 2011
Import a photo image which is, for example, 100px high by 500px long. Now apply a simple fade transparency from the left edge to 100% transparent 100px in from the left edge (i.e. 400px of the image's length is now 'invisible').
Export this as a png and then import this png. It will still be 100 x 500 - can you tell Xara export the image truncated down just the 'visible' portion (i.e. 100 x 100)?
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Sep 10, 2013
How to make a Contour object transparent? In below example is set a 1 step contour on the star, setting transparency the yellow is transparent but the grey not.
Contour_Transp.xar
I am aware that the star could be turned to editable shape, after clone and subtract so the transparency could be controlled on both shapes, but is there maybe some other way?
Also could be a way of course to set outline for the star and not contour, but I do not like as in that case the line half inside and half outside of the shape.
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