Posts by rjmoerland@mastodon.art
(DIR) Post #AwYJG37YsEgjduWHzM by rjmoerland@mastodon.art
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2/2I'd love to see a conductive thin film as well. I went through the math in the paper the implementation is based on (hal.science/hal-01518344/document), and it seems like it's not too much work to add. It requires calculating the reflectance between two conducting media, adds a variable phase change upon reflection from the top layer, and an additional damping factor that is the result of a now complex Optical Path Difference. It gives nice worn looks and see-through metal films.#b3d
(DIR) Post #AwcU11CTboYxTCh4cq by rjmoerland@mastodon.art
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The nice thing about open source and open development: I reported my findings in a comment on the Pull Request for this feature, and it got fixed 🤩. Fading still happens, as the model is inexact for zero film thickness, but now only below 1 nm. That should be fine for almost all but the most exotic cases.#b3d #blender3d
(DIR) Post #Ax4QHe9pqVbyAPdAwq by rjmoerland@mastodon.art
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Quite pleased: I added native #ThinFilmInterference in an absorbing layer on top of a conductor to #blender3d. I went through the math of https://hal.science/hal-01518344/document, and added terms dealing with absorption in the film. Slightly trickier than I thought, but it works. The 5.0 alpha branch dealing with dielectrics was great as a starting point!The render shows the result with nodes on the left and the native implementation on the right. If you look carefully there's a slight color shift.1/3#b3d
(DIR) Post #Ax4RXqfLCzPTY1en7w by rjmoerland@mastodon.art
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The method in the paper yields #iridescence that resolves to a plain reflection for thicker films, like in daily life. My nodes suffer from spectral aliasing, which means the colors keep cycling no matter the film thickness. Now, we can have absorbing films while keeping the look and behavior of thick films. The render shows the nodes on the left and the native behavior on the right. The native behavior more accurately reflects the real-world experience.2/3#blender3d #ThinFilmInterference
(DIR) Post #Ax4T3FBSCXPiWJDC2C by rjmoerland@mastodon.art
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A fair question is, does it matter? It depends. For some looks you're better off with a dielectric film (it renders faster). But when it does matter, there's no denying the absorption is required for the right look. Example: copper with a layer of CuO, where the layer doesn't have absorption. Compare with the image in the first post of this thread (repeated here), where realistic absorption is added.Now I need a real Dev to fix my baby C++ code😅 3/3#blender3d #b3d #ThinFilmInterference
(DIR) Post #AxDhb01QE5Tx7i9HzU by rjmoerland@mastodon.art
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@skribe Pandora's Star by Peter F. Hamilton.
(DIR) Post #AxEOQRNwRiv6pftTw8 by rjmoerland@mastodon.art
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Well the code is up: https://projects.blender.org/RobertMoerland/blender. By no means ready for production, but should serve as a proof of concept. I mentioned it on the current #blender3d 5.0 alpha #ThinFilmInterference pull request (see https://projects.blender.org/blender/blender/pulls/141131) for awareness and now am hoping for a positive response from the devs 🤞
(DIR) Post #AxyFQrfOlp2U1kLKjo by rjmoerland@mastodon.art
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Mountains near Lake Lugu, #Yunnan, China#SilentSunday #MastoArt #photography
(DIR) Post #Ay0R7oRa7GMUIOTwLg by rjmoerland@mastodon.art
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@apq We have a dedicated Slack channel for this at work. Sharing helps 😉
(DIR) Post #AyCzzBopfRJKTiV4Hg by rjmoerland@mastodon.art
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#SilentSunday #woodshole
(DIR) Post #AzEIxJRHYtm6MbdrYO by rjmoerland@mastodon.art
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NY, Feb. 2010#SilentSunday #photography
(DIR) Post #B0Y0L0FaaeNddNTArQ by rjmoerland@mastodon.art
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#SilentSunday #Benasque #photography #MastoArt #landscape
(DIR) Post #B1ArZywuOAqlWGEjfE by rjmoerland@mastodon.art
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@dougmccluer @mateodelarioja For me it was trying multiple FOSS solutions to find the best replacements that fit my workflow, and accepting that the tools just aren't the same. In my case, "Another Raw Therapee (ART)" replaced Bridge+Camera Raw, and @Krita was the best replacement for PS (FWIW: it has a selective color mask). So I would recommend to test as many FOSS solutions as you can stomach, and stick to the ones that fit best. HTH!
(DIR) Post #B1DD05p7wH37isoCY4 by rjmoerland@mastodon.art
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@dougmccluer I missed being able to run my Photoshop plugins on a layer, so I created a (FOSS) @Krita plugin that does just that:https://codeberg.org/rjmoerland/krita-edit-layerIt's nothing fancy, as it doesn't implement the PS plugin API, but it will let you run any external program on a single layer, and it will automatically import the changes back into your #Krita file after you're done. So if you have #Photoshop plugins that can be run as a standalone app, it might help you with the transition.
(DIR) Post #B1FLLWh8PqHN5oimzQ by rjmoerland@mastodon.art
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Tokyo, October 2024Model: lucfenyo (IG)#mastoart #photography #fineart
(DIR) Post #B1hvEHOCVl44i06Qsq by rjmoerland@mastodon.art
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#SilentSunday
(DIR) Post #B296K2AmLMh816gnS4 by rjmoerland@mastodon.art
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@alchemistsstudio in 2017 I used the set of Duolingo, Memrise and Wlingua for Spanish. None of them was perfect but as a set it worked pretty well. Duolingo for words, Memrise for everyday sentences and Wlingua for grammar. Of course, all apps have changed since then and Duolingo is off your menu, but perhaps Memrise is worth checking out.
(DIR) Post #B2ApdMwU2OhV1tYYzo by rjmoerland@mastodon.art
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#Venice #photoshoot #MastoArt
(DIR) Post #B2D2drweSROeu37jM0 by rjmoerland@mastodon.art
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From a photoshoot in London, 2019.#MonochromeMonday #fineartphotography #MastoArt #bnw
(DIR) Post #B2QJBQ4YiYTQcqJzCy by rjmoerland@mastodon.art
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Decided to cheat on this one, depending on what time zone you're in. #SilentSunday / #MonochromeMonday Great Falls, VA, USA, 2019#MastoArt #photography #landscape #bnw