Advanced Member phoenixart Posted August 31, 2022 Advanced Member Report Share Posted August 31, 2022 (edited) I'm testing the Clip Mask Layer function, and it works fine if I create a new layer to use it as a mask, and I paint on it. I would expect it to work when linked to the Cavity RGB layer, but in that case I see no change in the layer I'm trying to mask out. For instance, in this screenshot, the dark area is the result of the mask I painted on the layer "Mask": But then, if I link the Cavity Map instead, I don't get any variation: And if I invert the Clip Mask, the whole layer is hidden: I tried using the AO layer as a mask, but I guess the contrast in the AO is too subtle to actually create any usable value for masking. I thought I could use the Cavity map as a mask in the Clip Layer as well. Is that not the case? Edited August 31, 2022 by phoenixart Quote Link to comment Share on other sites More sharing options...
Advanced Member phoenixart Posted September 1, 2022 Author Advanced Member Report Share Posted September 1, 2022 So, I tried with a copy of the AO pass. I increased the contrast, blurred the layer, in order to get a decent degree of gray value to push the mask a little more. Here's the modified AO: And still nothing: Shouldn't this work? Not sure what I'm missing, though I seem to remember when I tried an older 3d Coat trial, this workflow worked fine. Quote Link to comment Share on other sites More sharing options...
Carlosan Posted September 2, 2022 Report Share Posted September 2, 2022 Is not working as mask, confirmed Source... Tieguaili: clip masks in coat are alpha masks, not greyscale masks [4:21 AM]phoenixart: oh! [4:22 AM]phoenixart: so, there's no way to use a simple grayscale layer, I see now [4:22 AM]phoenixart: that's quite a limitation strange, because the Cavity RGB map already works for the smart materials [4:22 AM]Tieguaili: if you want to use greyscale you're gonna have to send layers out to an external editor and change luminance to transparency [4:22 AM]phoenixart: got it [4:23 AM]Tieguaili: cavityRGB mask isn't a clip mask [4:23 AM]Tieguaili: neither are curvature masks or anything else [4:23 AM]Tieguaili: they're basically gradient maps Quote Link to comment Share on other sites More sharing options...
Advanced Member Solution phoenixart Posted September 2, 2022 Author Advanced Member Solution Report Share Posted September 2, 2022 (edited) @Carlosan I added a temporary solution to the conversation above: phoenixart — Today at 12:55 AM A couple of workarounds for what I'm trying to do. The simplest, is to change the blending mode of what I wanted to use as a clip mask, to multiply. The other method is to use Align Colors. So, now I can start from an AO pass, paint on it if I need to, and use it sort of as a curvature map without going the Smart Materials route. Edited September 2, 2022 by phoenixart 1 Quote Link to comment Share on other sites More sharing options...
Member DMG Posted September 29, 2022 Member Report Share Posted September 29, 2022 (edited) I think I'm trying to do something similar... I have a wood texture, but I want to desaturate the lighter parts of it. At first I desaturated it in 3DCoat, and adjusted the contrast and brightness to get a good 'mask' layer. However nothing I tried would apply it as a mask. I eventually remembered that clipping masks in 3DCoat work off the transparency layer, NOT greyscale images. I exported the colour layer, opened it in Krita, used the 'Colour to Alpha' tool to convert the light areas to transparent, and leave the darker areas opaque; then re-imported this into 3DCoat to use as my clipping mask. I'm not expecting 3DCoat to switch to using greyscale images as clipping masks, that appears to be a large change which has been requested before. However, I think a simple script on the layers right-click menu which basically turns greyscale images into layers with varying levels of transparency (The standard seems to be white to fully opaque, black to fully transparent, and varying levels/gradient inbetween) would be very helpful, and would mean users no longer need to jump outside of 3DCoat on such occasions. Cheers Derek Edited September 29, 2022 by DMG Quote Link to comment Share on other sites More sharing options...
Carlosan Posted October 2, 2022 Report Share Posted October 2, 2022 Layers > Copy channels is useful ? Quote Link to comment Share on other sites More sharing options...
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