That link seems to be broken.
I put together a short document based on one of my favorite video tutorials on how to create Shaded Relief easily in Photoshop or Gimp. I did this mostly for myself, since I find it difficult to reference video tutorials, but wanted to share in case others find it useful. The original video tutorial is also amazing and can be found here.
Edit, for some strange reason it will not let me upload any file except PNG files at the moment, so here's a link to the PDF:[URL="https://drive.google.com/file/d/1O150pv__xsyV5NDGL3BxVI1KjGyusKZW/view?usp=sharing[/URL]
Last edited by Turambar; 02-18-2024 at 12:53 PM.
DeviantArt: https://www.deviantart.com/turambar91
That link seems to be broken.
DeviantArt: https://www.deviantart.com/turambar91
Because I'm too lazy to actually try this, how does this technique compare with using a single multiply blend mode for the grayscale modifier on the color?
Using a single Multiply ends up darkening the overall colors too much. This method allows you to preserve the base colors while just darkening the shadows and lightening the highlights. If you watch the video, it shows both methods. Multiply works for a fast and dirty shaded relief, but this method allows for a lot more control.
DeviantArt: https://www.deviantart.com/turambar91
Shouldn't having a separate overlay and multiply solve the the color change?
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This approach ensures that the highlight layer only lightens the bright areas and the shadow layer only darkens the shadows, thus leaving the base colors in other areas unaffected. It allows for a cleaner look, though it takes a couple extra steps.
Would love to see what you come up with. Though it is not really my approach, as I just wrote down the steps form the video. It is the approach used by Tom Patterson and other professional cartographers at the US National Park Service and USGS.
DeviantArt: https://www.deviantart.com/turambar91