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Post by purefoysgirl on Feb 16, 2022 17:24:11 GMT -5
I used this tutorial to make a custom shadow map. I'm a GIMP user so Photoshop tutorials are incomprehensible to me, but I did save it as BC3/DXT 5 with mipmaps. Yet when tested (on a computer with a nice, powerful graphics card), the dreaded black lines appear:   I can see the lines fall where the white on my shadow map ends, but from what I saw here if you leave the whole background completely white, it will erase other shadow maps for hair / accessories / shoes? So should I blend out the edges of the white so it isn't sharp? In studying exported shadow maps, it looks like they don't take too much care with them, so I'm a bit at sea right now. Any help would be appreciated! Thank you! (also please don't mind the specular, this was a test run to see how it looked XD) Package
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Post by tedw on Feb 16, 2022 17:57:45 GMT -5
I've only encountered those kinds of lines when I have a shadow map that doesn't have an entirely white background. I've never experienced an issue with erasing shadow maps for other CAS items to my knowledge.
The shadow map in your package has a transparent background, so I'd suggest first making it entirely white and seeing if that fixes your problem.
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Post by mauvemorn on Feb 16, 2022 18:29:38 GMT -5
Hi. A shadow map must not have an entirely white background. It must have white only in places where shadows exist in rgb. However, it - the white in the alpha channel- must not have soft borders. You can’t see well here but you can clone any maxis item and study it with this information in mind. Rgb can have soft borders/edges, alpha cannot  and because of how png are converted to dds, the shadows maps should always be made in dds |
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Post by purefoysgirl on Feb 16, 2022 19:00:43 GMT -5
mauvemorn: Thank you, I've looked at them and even used some EA shadow map parts to make part of my own, but in GIMP you can't alter the alpha layer, it's exactly the shape as whatever is in your view space. So mine is wrong somehow? I need to cut out more white? Because I did cut the white background down to just where my shadows sit, and saved it as DDS, not PNG, so I'm not certain how to correct this issue.
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Post by mauvemorn on Feb 16, 2022 20:50:37 GMT -5
 There should be something like this I don’t know if you will be able to save a png in dds correctly in gimp |
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Post by purefoysgirl on Feb 17, 2022 6:37:20 GMT -5
mauvemorn I do have an RGBA channels tab (you just can't edit them, they display what is on your canvas) and it saves fine as a DDS BC3/DXT 5 with mipmaps. I sorted it out by overlaying the shadow from the top I used onto the space as well as the shorts and trimming my shadow area to match them exactly. Considering it was a giant square, there shouldn't have been areas where the alpha was jagged. Maybe the white part extended too high onto the neck where the uv starts to curve, idk. It's a bit frustrating, but I'll figure it out. Photoshop is too expensive to get for just this XD Thank you for your help!
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Post by mauvemorn on Feb 17, 2022 7:24:52 GMT -5
You can use Photopea, an online photoshop rip off. It’s completely free and is almost identical to photoshop, so you will be able to follow photoshop tutorials.
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