This respository is RTXGI-DDGI implementation in Unity 2022.3.17f1c1 with URP14.0.9

It use Microsoft DirectX Raytracing to trace ray from each probe to scene geometry, grab irradiance and evaluate into texture

This renderer feature need DXR capable GPU, and you need to enable DirectX12 Graphics API on Windows in unity

This is more like a demostration, we have some limitations here.

• Only DirectX12 API is supported on Windows

• Only one probe volume supported, and you can`t rotate it

• Probe Classification is not supported

• We use FindObjectsOfType to grab scene lights in each frame, it may be expensive

• Transparent object is not tested at this version

• LWGUI
• Unity Sponza

• NVIDIA-RTXGI-DDGI
• Arida-DX12