Custom layer props (Hunyuan3D pipeline)

Base game has no usable leaf-pile or grass-clipping-pile prop. These two are generated, converted to GTA .ydr, streamed, and wired into Config.layers.

Props to make

model name	kind / tool	target size (m)	look
rcm_grasspile	pile / pitchfork	~0.8 W × 0.8 D × 0.5 H	loose mound of green cut-grass clippings
rcm_leafpile	leaves / blower	~0.9 W × 0.9 D × 0.4 H	flatter pile of dry brown/yellow leaves

Static decoration, walk-through → no collision needed (cheaper, simpler). LOD: one model is fine at yard view distance; skip LOD chain.

Reference image (Hunyuan input)

Hunyuan3D needs one image, single object, plain/transparent background. A raw "clippings scattered on a lawn" photo fails — it can't separate blob from grass. So either:

• A. Source + clean: grab a CC0 pile shot, then rembg / Photoshop knock the background to flat white before feeding Hunyuan.
• B. Generate the reference (more reliable for an amorphous mound) with any text-to-image model, prompt:

  a single loose mound of freshly cut green grass clippings, centered, isolated on a plain flat white background, soft even studio lighting, three-quarter top-down view, no shadow, product photo (swap "green grass clippings" → "dry brown autumn leaves" for rcm_leafpile.)

Then run Hunyuan3D-2 (image→3D) on the cleaned/generated image.

Conversion chain (after Hunyuan)

1. Blender — decimate to low poly, recenter origin to base, scale to target size above (GTA unit = 1 m), Z-up / Y-forward, bake texture to power-of-2.
2. Sollumz — export drawable → rcm_grasspile.ydr (+ .ytd texture dict).
3. CodeWalker — make a YTYP archetype so GetHashKey('rcm_grasspile') resolves.
4. Stream — drop .ydr + .ytd in stream/, register ytyp in fxmanifest.lua: data_file 'DLC_ITYP_REQUEST' 'stream/rcm_props.ytyp'.
5. Verify load — /pt rcm_grasspile. If it attaches in hand, it loads.

Wire-in (once names resolve)

config.lua → Config.layers:

leaves    = { density = 0.006, min = 2, max = 10, model = 'rcm_leafpile' },
pileModel = 'rcm_grasspile',

Restart rc_mower_addon. Highlight already off (Config.layers.highlight = false).