Shadow mapping via DrawModelEx doesn't work — Raylib's material system
only supports texture unit 0, shadow map sampling needs unit 1.
Additional uniforms in fragment shader also broke NVIDIA GLSL uniform
layout, causing render artifacts. Reverted shader to pre-shadow state.
Shadow pass infrastructure (RenderShadowPass, shadow shader, RT) kept
but disabled. 66/66 tests passing.
- Add ICameraController interface and FreeFlyCameraController.
- WASD moves, Q/E up/down, Shift sprint, right-mouse + mouse look.
- Toggle between Orbit and FreeFly with F key.
- OrbitCameraController now implements ICameraController.
- Update Program.cs to switch active controller on F.
- Update CORTEX_ENGINE_ARCHITECTURE.md with camera controls.
- Debug/Release/ReleaseAOT all build.
- Add get_world_state AI command that dumps ECS entities with Transform,
Camera, Material, Light, and Mesh summaries.
- Add set_material AI command to update albedo/roughness/metallic/texture.
- Expose both commands as MCP HTTP tools and stdio tools.
- Add Light component and support up to 4 directional lights via a Vulkan
uniform buffer (descriptor set 0) with std140 layout.
- Move per-frame lighting/camera data into the uniform buffer; push constants
now carry only MVP + material properties (96 bytes).
- Add Texture class for PNG loading and Vulkan image/view/sampler creation.
- Add per-entity combined image sampler descriptor set (set 1) and use it
for albedo texture sampling in the fragment shader.
- Generate a checkerboard floor texture in Program.cs.
- Add McpStdioServer for headless stdio MCP (Claude Desktop compatible).
- Add claude_desktop_config.json and scripts/start_mcp_engine.sh.
- Update CORTEX_ENGINE_ARCHITECTURE.md with runtime notes, CLI arguments,
Vulkan pipeline details, and MCP client configuration.
- All configs (Debug/Release/ReleaseAOT) build successfully.
- 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.
- Add ScreenshotCapture class to Engine.Graphics using Vulkan image readback.
- Integrate screenshot capture into MeshRenderer; request triggers readback on next frame.
- Add SixLabors.ImageSharp 3.1.11 for PNG encoding (patched for CVE-2025-54575).
- Add capture_screenshot AI command and MCP tool.
- Wire screenshot request into Program.cs with demo command.
- Expose swapchain surface format and image accessor for readback.
- Add Screenshots/ to .gitignore.
- Update CORTEX_ENGINE_ARCHITECTURE.md with MCP, Silk.NET.Vulkan, ImageSharp, and screenshot capture.
- Add Transform component and ECS world in Engine.Core.
- TriangleRenderer.RenderWorld queries entities and applies transforms.
- Animate a single triangle entity in Program.cs.
- Pin ppy.SDL3-CS to 2026.520.0 and add linux-x64 RID for bundled native SDL3.
- Add Flecs.NET.Debug/Release 4.0.4-build.546 per configuration.
- Update SDL3 API usage for the 2026.520.0 binding.
- Update architecture file to Silk.NET.Vulkan and Flecs 4.0.4.
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