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Found 9 results

  1. 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.
  2. 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.
  3. 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)
  4. 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)?
  5. 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?
  6. 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?
  7. 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
  8. 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
  9. 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!
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