emil28092005
751e403c0c
- Add Material component with Albedo, Roughness, Metallic. - MeshRenderer reads Material and tints vertex color; falls back to default. - Add Blinn-Phong specular using camera position pushed via push constants. - Add floor plane and grid mesh in Program.cs. - Add OrbitCameraController with right-mouse orbit and mouse-wheel zoom. - Forward SDL events to InputMapping from Sdl3Window.PumpEvents. - Update main loop to update camera and aspect ratio on resize. - Recompile SPIR-V shaders. - Update CORTEX_ENGINE_ARCHITECTURE.md with Material, lighting, and orbit camera.