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Last week-end I built a watercolor simulator based on real physics (as much as possible). A lot of you asked to play with it so i improved it and it's now live. New since the prototype: - More pigments (52), based on the best research out there to predict... color mixes (Kubelka-Munk). - More luminous / glassy feel - Some fun experimental stuff like the salt and alcohol techniques to alter the texture, a backlight effect and a few more. - I also added a Code mode where the simulator prints its real function calls next to the sheet while you paint 🤓♥️ It's still largely based on the same physics model as my prototype: Curtis et al.'s "Computer-Generated Watercolor". All in the browser. Current status: building and implementing a kid-friendly version for Marble App. Plenty of awesome things to learn with watercolor painting!show more

Lionel Mora

6,326 subscribers

308,329 次观看 • 1 个月前 •via X (Twitter)

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45 条评论

Lionel Mora 的头像

Lionel Mora1 个月前

Link to try it:

Rahul Janagouda 的头像

Rahul Janagouda1 个月前

Can you make an ipad app? So good, I could handover ipad to my 2y old for the first time to play with your app.

Lionel Mora 的头像

Lionel Mora1 个月前

We’ll integrate it in the Marble beta (available on iPad)

Aaron Francis 的头像

Aaron Francis1 个月前

this is beautiful!

Hammermann 的头像

Hammermann1 个月前

This is wonderful! I wish there was an undo button (I always prefer cmd/ctrl+z). And if there was an option to uplaod an SVG and apply the same effect, it'd be pretty cool too!

Lionel Mora 的头像

Lionel Mora1 个月前

Damn, I need to build a V3. Thanks for the feedback!

Nick Schmidt 的头像

Nick Schmidt1 个月前

Hell yea

ryan laff 的头像

ryan laff1 个月前

I love this ir looks wonderful

MrBlindMouse 的头像

MrBlindMouse1 个月前

Very cool! It feels so realistic!

Ruhan 的头像

Ruhan1 个月前

I was really bad with water colors! Will give myself another try with this one haha.

Lionel Mora 的头像

Lionel Mora1 个月前

I still highly recommend IRL watercolors, but this one is satisfying too :)

Andrew Gilgen 的头像

Andrew Gilgen1 个月前

Paper texture so good

Lionel Mora 的头像

Lionel Mora1 个月前

Thank you Andrew!

Ara Ghougassian 的头像

Ara Ghougassian1 个月前

Wow, great work!

Lionel Mora 的头像

Lionel Mora1 个月前

Thank you!

Thiago Monteiro 的头像

Thiago Monteiro1 个月前

52 pigments is commitment

Lionel Mora 的头像

Lionel Mora1 个月前

😅

johnny 的头像

johnny1 个月前

love this

Lionel Mora 的头像

Lionel Mora1 个月前

🙏♥️

Michael Kleyn 的头像

Michael Kleyn1 个月前

Having this on the ipad with gravity would be beautiful

saietta 的头像

saietta1 个月前

curtis et al's model wasn't built for real-time, the original paper ran the capillary/diffusion simulation offline. getting kubelka-munk mixing to hold interactive framerates while you're actively painting is the harder part, not the pigment count.

Marble App 的头像

Marble App1 个月前

🎨👀

CodeCultureCob 的头像

CodeCultureCob1 个月前

this is so cool! reminded me me of paper chromatography tests from highschool :)

Akhil 的头像

Akhil1 个月前

Asked claude to build me a watercolor simulator, guess what it named the app...

Lionel Mora 的头像

Lionel Mora1 个月前

Haha, it should have been Sudo Aquarelle on mine when I pushed it live... Fixed now, but yeah not a great name anyway.

Lewie JPD 的头像

Lewie JPD1 个月前

Great. Thanx for sharing!

Sohneya 的头像

Sohneya1 个月前

This is so so beautiful, Lionel

Lionel Mora 的头像

Lionel Mora1 个月前

Thanks a lot Sohneya!!

John Cotterell 的头像

John Cotterell1 个月前

This is wonderful, though tricky with a mouse, I need to try it on my tablet. Code output is interesting. I once wrote a simple glsl paint app where you could edit the brush shader in the browser, though it was limited to brush radius. This makes me want to revisit that.

Aarni 的头像

Aarni1 个月前

Btw, how does your mixing compare to

Liz Olson 的头像

Liz Olson1 个月前

KidPix Wacky Brush paint tool level up. Beautiful.

Igor Marinelli 的头像

Igor Marinelli1 个月前

Wow

Mehdi Djabri 的头像

Mehdi Djabri1 个月前

Excellent work, calming

Lionel Mora 的头像

Lionel Mora1 个月前

Thank you Mehdi!

Jake 的头像

Jake1 个月前

Looks beautiful! Just imaging devs making artistic sequence and flow diagrams in this vs excalidraw haha

TheMiddleMan1980s 的头像

TheMiddleMan1980s1 个月前

This app should be getting so much traffic given the popularity of water color. It’s amazing

Ulysse Sabbagh 的头像

Ulysse Sabbagh1 个月前

Banger

AI Mastery Guide 的头像

AI Mastery Guide1 个月前

52 pigments is oddly satisfying

Rakibul 的头像

Rakibul1 个月前

that paper is so cool !

SpazeCraft 的头像

SpazeCraft1 个月前

Not gonna lie, I’m genuinely impressed, the physics of the water & pigment blending really makes me think of real watercolors, & I love me some watercoloring!!! One thing I noticed is that when you reset the pigment, your image gets tanked with that reset. undo doesn’t restore.

Sad Phở 🥲🍜 的头像

Sad Phở 🥲🍜1 个月前

very nice

Jean-Louis Gouwy 的头像

Jean-Louis Gouwy1 个月前

afaik you don't have tech background, so you create it with Claude ? What did it use to built it ? (framework, libraries i mean) That works pretty well ! So cool !

Evanpunk2077 的头像

Evanpunk20771 个月前

damn so cool！

sala de produtos 的头像

sala de produtos1 个月前

you should sell this to schools

Torsion 的头像

Torsion1 个月前

If you could turn this into a clip studio paint brush that'd be better than a standalone app

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This weekend I've been working on a watercolor simulator based (as much as possible) on real physics. It's built on Curtis et al.'s watercolor model (SIGGRAPH 1997) with a fluid layer, drifting pigment and wet paper fibers. I decided to explore this because I love watercolor painting, and when I do some, my favourite moment is when the pigments get mixed inside the water and spread chaotically. The transparency, the lack of control, the depth of the colors in that moment is what I enjoy the most. So I started to wonder how code could help fix that moment in time and started chatting with my bestie Claudy. Early WIP so don't mind the look.

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