[Flash] GPGPU Liquid DemoE

Links

Abstract:

el-ement's tutorial on fluid simulations uses Stage3D shaders in order to simulate Stable Fluids (Jos Stam, 1999) for real time fluids. I wanted to adapt this to my own engine in order to get a concrete pipeline down in order to use the GPU for crunching math and simulations that I can use for later.

Controls:

• 1 Shows default
• 2 Shows velocity texture (where the liquid is moving)
• 3 Shows distortion (the movement of the liquid)

• R Reset
• C Toggles between checkboard layout (same as el-ements blog posting) vs the red and black pattern
• D Toggles dithering
• G Toggles glow when the liquid is moving

• [ and ] will increase or decrease the viscosity of the liquid
• - and + will increase or decrease the stir strength

• O Toggles obstacles
• E Toggles a smoke stack going from bottom to top
• W Toggles top half to move right and bottom half to move left
• S Toggles 3 dots on the left that will give off liquid

Credits:

Rigged wooden puppet hand by Liam Van de Wouwer on Sketchfab

Audio synthwake [[NGAEC]] by JTopDawg14

Art style and main inspiration I got this from was from Instagram

Source code: https://github.com/FlashBacks1998/Flash-GPGPU-Liquid-Demo

Used Claude for understanding the Navier Stroke equation in simple terms (the original blog post was in Japanese) and optimization passes to see if I missed anything. I dont care i just wanna make flash demos with cool shit