feat(mesh): multi-material OBJ rendering

README.md

@@ -54,7 +54,7 @@ Graphics
 - Built-in effects such as tinting, masking and 2D lighting (with optional per-pixel normal-map shading on sprites for 3D-looking dynamic lights)
 - Standard spritesheet, single and multiple Packed Textures support
 - Compressed texture support (DDS, KTX, KTX2, PVR, PKM) with automatic format detection and fallback
-- 3D mesh rendering with OBJ/MTL model loading, perspective projection and hardware depth testing
+- 3D mesh rendering with OBJ/MTL model loading, multi-material support, perspective projection and hardware depth testing
 - Built-in shader effects (Flash, Outline, Glow, Dissolve, CRT, Hologram, etc.) with multi-pass chaining via `postEffects`, plus custom shader support via `ShaderEffect` for per-sprite fragment effects (WebGL)
 - Trail renderable for fading, tapering ribbons behind moving objects (speed lines, sword slashes, magic trails)
 - System & Bitmap Text with built-in typewriter effect

packages/examples/LICENSE.md

@@ -37,3 +37,14 @@ published by Casino RPG on OpenGameArt.org:
 These assets are released under **CC0 1.0 Universal (Public Domain
 Dedication)** — no attribution legally required, but provided here as a
 courtesy to the original creator.
+
+### `multiMaterialMesh` example
+
+Spacecraft 3D models (`craft_speederA`, `craft_speederB`, `craft_racer`,
+`craft_miner`) in `public/assets/multiMaterialMesh/` are taken from
+**"Space Kit (2.0)"** published by Kenney:
+
+<https://www.kenney.nl/assets/space-kit>
+
+Released under **CC0 1.0 Universal (Public Domain Dedication)** — no
+attribution legally required, credited here as a courtesy.

packages/examples/public/assets/multiMaterialMesh/craft_miner.mtl

@@ -0,0 +1,14 @@
+# Created by Kenney (www.kenney.nl)
+
+newmtl dark
+Kd 0.2745098 0.2980392 0.3411765
+
+newmtl metalDark
+Kd 0.6750623 0.7100219 0.7735849
+
+newmtl metal
+Kd 0.8431373 0.8705882 0.9098039
+
+newmtl metalRed
+Kd 1 0.6285242 0.2028302
+