Cursor Agentand西风逍遥游
66b069d1f9
Face the Quaternius Superhero Female toward a fixed front 3/4 camera during the auto capture pass, note the free-pack bald base mesh, and check in the updated Lavapipe PNG sequence. Co-authored-by: 西风逍遥游 <sunxfancy@gmail.com>
Venom Transform Demo
Interactive approximation of the Bilibili / Unity "毒液变装" look (BV12H4y1D7qf): glossy black symbiote coverage crawling up a textured character with an emissive frontier, tendril ribbons, and splash droplets.
What this proves
EVEngine can assemble that effect from existing pieces:
| Layer | Implementation here |
|---|---|
| Body coverage | Custom mesh fragment shader (shaders/venom.frag) — height + fbm noise mask |
| Black goo look | Dark albedo + high gloss specular + cool fresnel |
| Frontier glow | Magenta/purple emissive band along the coverage edge |
| Tendrils | Animated thin cylinders around the active frontier |
| Droplets | Small spheres emitted near the front |
| Host mesh | Quaternius Superhero Female (CC0) via model3d + custom material shader |
This is intentionally a shader + props demo, not a volumetric metaball solver. That matches the Unity reference technique more closely than a full fluid simulation would.
Character asset
assets/quaternius/ vendors the CC0 Quaternius Universal Base Characters
female FullBody glTF (same pack as examples/character-motion-lab). See
assets/quaternius/LICENSE-CHARACTERS.txt and
quaternius.com.
Run
# from repo root, after build/linux-debug is ready
make run/linux-debug GAME=examples/venom-transform
Headless / CI-style capture (Lavapipe + Xvfb):
export VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/lvp_icd.json
export XDG_RUNTIME_DIR=/tmp/xdg-runtime
mkdir -p "$XDG_RUNTIME_DIR" && chmod 700 "$XDG_RUNTIME_DIR"
export ALSOFT_DRIVERS=null
xvfb-run -a make run/linux-debug GAME=examples/venom-transform
On launch the demo auto-plays coverage 0 → 1, writes PNGs under
captures/, then closes the window.
Controls
| Key | Action |
|---|---|
| Space | Play / pause coverage |
| Left / Right | Scrub coverage ±0.05 |
| R | Reset to 0 and play |
| P | Save captures/venom-manual-*.png |
Files
main.nut— scene, character load, tendrils, auto-captureshaders/venom.frag— coverage / goo / edge shader (samples albedo)config.nut— window + modules (model3d)assets/quaternius/— CC0 character glTF + texturescaptures/— PNG outputs from the auto demo
Captures
Auto-demo frames (Lavapipe + Xvfb):
| coverage | file |
|---|---|
| 0% | captures/venom-00-c0.png |
| 28% | captures/venom-01-c28.png |
| 55% | captures/venom-02-c55.png |
| 82% | captures/venom-03-c82.png |
| 100% | captures/venom-04-c100.png |