Jump to content

Search the Community

Showing results for tags 'alpha channel'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • Affinity Support
    • News and Information
    • Affinity Support & Questions
    • Feature Requests & Suggestions
  • Learn and Share
    • Tutorials (Serif and Customer Created Tutorials)
    • Share your work
    • Resources
  • Bug Reporting
    • Report a Bug in Affinity Designer
    • Report a Bug in Affinity Photo
    • Report a Bug in Affinity Publisher
    • (Pre 1.7) Affinity Range Bugs Forums
  • Beta Software Forums
    • Affinity Designer Beta Forums
    • Affinity Photo Beta Forums
    • Affinity Publisher Beta Forums

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


AIM


MSN


Website URL


ICQ


Yahoo


Jabber


Skype


Location


Interests

Found 13 results

  1. Hi, I'm using Affinity Photo to edit hand painted textures for game use. I'm trying to separate out the painted stuff and generate a clean, solid alpha channel for game use, that is, no grays except for antialiasing at the very edges. In PS, I'd grab the red or blue channel, up the contrast, clean any dust or blips and use that as the alpha. In Affinity, when I try the Filter>Erase White Paper I get a subtle transparency in the stuff that should be opaque, and a subtle haze/translucency in the stuff that should be invisible in the game. Any suggestions for a quick workflow that would clear out something like this? I would think it would be easy, but I'm pretty new and can't figure out the steps. Thanks in advance!
  2. Hi, Few days back I read a tweet from troy_s (Troy James Sobotka), about "How to check any image editing software that treats the alpha channel from an EXR file correctly?" I checked the file with affinity photo and got different results. Here is the tweet link. Click here You can see how Krita and Fusion treating the alpha channel from the same exr file. And, I have opened the exr and enabled (associate openexr alpha channels - in preference > color). Please check the result in screenshot 2 And i have opened the image after disabling ("associate openexr alpha channels - in preference > color") I can't see the candle light with the background layer. I could see only the black background, instead of alpha enabled candle light and color background. - screenshot 1 And, I checked the file in krita and BMD Fustion. Those software's showed the candle light with alpha. Please check the screenshots - 3,4 I have attached that exr file here. I'm not sure whether its a bug. And, I'm sorry if my English is not good. candle.exr
  3. In my job I work with PS retouching old book covers. In many case I work with channels and calculations (to mix channels I created). I wanna to make the same things with AP but I can't: In PS I do: 1) I copy a channel (example: red and rename it to "red copy"). 2) I select the recently created channel, double click and can work on it in grayscale (it appears on the viewport) and I just leave a black and white version. 3) When I finish I copy another channel (example blue channel and rename it to "blue copy"). 4) The same process. 5) After finishing the blue copy modifications I open the calculations dialog box. 6) I mix the "red copy" and "blue copy" and I get a new alpha channel 7) I use it to mask a zone in the original image. How can i do the same thing with AP? I bought the three Affinity apps and I very happy with them. I'm using the 1.7.1 version.
  4. Hey all, I'm struggling to create and export an Alpha Channel from Affinity Photo (v1.7.1.404) to a CMYK .TIFF image. The image has been masked out and I'm trying to make a named Alpha Channel to be used as a Spot Colour for digital print in an Onyx RIP (To be names 'Spot 1' which refers to a Spot White Ink). Please see the attached screenshot for the masked out area which I'm talking about. I've followed several other posts and YouTube/Vimeo video's and it's just not clicking for me. The image will export as a .TIFF but it won't export an Alpha Channel no matter what I try. Methods I have tried: 1. Mask out areas, on the 'Selection raster Alpha' channel, right click, and 'Create Spare Channel' and name it 'Spot 1' 2. In the layers under Adjustments, create and Channel Mixer and pull up the Alpha slider. What am I doing wrong? Thanks for your help!
  5. Hi, I'm using a 3d software package that can only generate texture depths by using the pixels from a PNG alpha channel. In Photoshop this is a straight forward process. You would simply create a new alpha channel in the channels palate, copy the texture map and paste it into the newly created alpha channel. Then save the file as a PNG with the alpha channel option checked. How do you achieve this in Affinity Photo? I have attached two JPG files. What I'm looking to do is make the ROUGH file an alpha channel of the COLOR file. Any advice would be appreciated. Many thanks.
  6. Having a curves adjustment with the RGB / Alpha Channel selected and modified has no effect on alpha values on a Pixel layer. As comparison it has an effect when applied to a Mask layer. In the example below, my pixel layer has plenty of partially transparent areas, but no effect with the Curve adjustment.
  7. Semi-automatic masking / masking guide tool for Affinity Photo Here is best example i can find (youtube link) - Zephyr's Masquerade tool is semi-automatic masking tool, user paint guide lines which help algorithm to solve alpha channel. Its very fast, i don't know for sure how it works, but i would guess that those guide lines descrip to the algorithm textures and colors which are wanted (or/and unwanted) for mask. This come to my mind when i saw Adobe's new automatic subject selection demo, where user don't have any control, just some kind of lucky button, so i thought serif could make better, and i think this kind of tool would be much better with better flexibility and control. And it should be non-destructive, it could be based on editable splines/vector paths (like freehand pen tool, or affinity design's Pencil tool) for example? Maybe Affinity Photo should have "Mask persona" (all masking tools in same place, with lasso selection, mask bursh, guide brush, some procedural masking tools? vector tools, refine tools etc. with easy to use possibility control and edit multiple mask channels for same layer, if layer has multiple mask/alpha channels then mask persona would be great way to control the complexity, at least it would be nice to have way to control multiple alpha layers like separated hair mask, head mask, etc. for detailed and flexible workflow)
  8. When exporting EXRs from Affinity Photo, the Alpha channel is being exported as unassociated. Opening in other apps I have to convert it to pre-multiplied. Is there an option on Affinity to export EXRs with Associated alpha (premultiplied)?
  9. Look at the layer and channel panels on the attached image for details, but basically when I export this image it always exports a combined alpha of all layers and I want the alpha of Sylvester only to be exported, how do I do it in Affinity?
  10. Look at the layer and channel panels on the attached image for details, but basically when I export this image it always exports a combined alpha of all layers and I want the alpha of Sylvester only to be exported, how do I do it in Affinity?
  11. Hello, need some assistance. - Exporting a masked object always the whole "page" with white background is visible. I tried as tiff and png-24. Enclosed is the file, only the blue rectangle should be visible. Opening the file in photoshop as tiff the channel isn't there. - Is it possible to add a blank layer, means that the background is clear not white, coverage remains 100% Thanks in advance Test.afphoto
  12. Hello, here is a connoisseur / expert, how to work with alpha channels in Photoshop, in order - in this case - to free branches or tree crowns. But I do not know how to proceed with Affinity Photo. The point channel calculations as in PS is not available in AP, but under "Channels" the point "background" for red, green and blue. Also one can create in AP a reserve channel - am I right in assuming that this is analogous to the copy of a mask channel, as it was made in the video? Regards, Martin
  13. I 3D rendered an image with a shadow channel, I am trying to remove the background of the rendering with the shadow channel. The screenshot outlines what im trying to achieve using photoshop. Is this possible with Affinity? If so a direction on how to do so would be great!
×

Important Information

These are the Terms of Use you will be asked to agree to if you join the forum. | Privacy Policy | Guidelines | We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.