forge-basic-lighting

What problem does it solve?

This skill teaches how to add Blinn-Phong lighting to a rendered 3D scene, enabling realistic shading with ambient, diffuse, and specular components.

Core Features & Use Cases

• Ambient, Diffuse, and Specular Lighting: implement comprehensive Blinn-Phong shading for meshes.
• World-space Lighting Calculations: transform normals using adjugate-transpose for correct shading under non-uniform scale.
• Shader Uniforms & Pipeline Integration: push MVP and model matrices, lighting parameters, and camera position to the GPU via SDL3 GPU APIs.
• Real-time Rendering in SDL3 GPU: integrate with SDL_CreateGPUGraphicsPipeline and draw calls to render lit geometry.

Quick Start

Integrate the provided Blinn-Phong lighting shaders into your SDL3 GPU project and render a lit mesh.