forge-environment-mapping

What problem does it solve?

Environment mapping provides a practical approach to render immersive 360-degree backgrounds and realistic reflections in 3D scenes using cube maps with SDL3 GPU. It enables the creation of a skybox and accurate reflections on metallic or glossy surfaces, enhancing player immersion.

Core Features & Use Cases

• Cube map textures: Create a 6-face cubemap suitable for skyboxes and reflections.
• Skybox rendering: Render a surrounding environment with correct depth handling (depth = 1.0) and appropriate face culling.
• Reflection mapping: Sample the cube map in fragment shaders to produce real-time reflections on materials.
• Render order & best practices: Proper render order, depth/stencil configuration, and view-matrix handling to avoid parallax.
• Use cases: Add environmental backgrounds for space, outdoor scenes, indoor environments, and glossy surfaces.

Quick Start

Create a cubemap texture with six faces, load each face image, and render a skybox around the camera with depth testing configured for depth=1.0.