SuperPaint
a fluid simulation painting app
Details
- External ID
- 47564025
- Source
- HN
- Company
- —
- Product
- SuperPaint
- Website domain
- github.io
- Launched
- March 29, 2026
- Cohort
- —
- Upvotes
- 10
- Upvotes percentile
- 0.5781057810578106
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Description
I built this using Compose Multiplatform, with a C++ backend for the fluid simulation and rendering. Any feedback is welcome!
Enrichment
- Theme
- 3D graphics and physics simulation tools
- Vertical
- Horizontal
- Function
- Content generation
- Audience
- B2C
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- fluid simulation painting application
- Manually corrected
- False
Could you build this?
No Building real-time fluid simulation and custom rendering pipelines in C++ for WebGL requires deep expertise in computational fluid dynamics and graphics programming.
What it would actually take: Requires solving Navier-Stokes equations in real time using techniques like Eulerian grid-based fluids, Jacobi iterations, or SPH algorithms implemented in C++/OpenGL/WebGL shaders. The stack combines C++ compiled via Emscripten for numerical simulation with Compose Multiplatform for UI. Doing this performantly across mobile and web requires specialized knowledge of computer graphics and numerical methods that LLM prompting cannot reliably produce.
Discussion
4 comments analyzed.
Concerns raised: Pressure sensitivity not working in iOS Safari/WebKit, Touch events not responding on desktop and tablets
Feature requests: Use pointer events API for cross-platform compatibility
Competitors
Other products that read as similar to this one — 273 launches clear the similarity bar, closest 8 shown.
Attention rank: #131 of 274 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 149 days after the earliest competitor.
- GrobPaint: Somewhere Between MS Paint and Paint.net · hn · 2026-03-14 · 54 upvotes · similarity 0.47
- HeatSpectra: Realtime 3D Surface Heat Simulation · hn · 2026-05-08 · 6 upvotes · similarity 0.46
- MaterialXTeapotLion · github · 2026-09-14 · 9 upvotes · similarity 0.46
- threejs-particle-fluids · github · 2026-09-25 · 175 upvotes · similarity 0.44
- inklet · github · 2026-09-13 · 13 upvotes · similarity 0.43
- VulkanaImageEditor · github · 2026-09-27 · 9 upvotes · similarity 0.43
- An ASCII 3D Rendering Engine · hn · 2026-06-20 · 211 upvotes · similarity 0.42
- Fio: 3D World editor/game engine · hn · 2026-03-26 · 96 upvotes · similarity 0.42
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a content generation tool for Government yet.