HTrace World Space Global Illumination (HDRP) v1.3.4 is a powerful global illumination solution designed for Unity's High Definition Render Pipeline (HDRP). This resource pack eliminates the need for baking or asset pre-processing, offering seamless integration into the rendering pipeline with no manual setup or package customization. It automatically injects resources and overrides native indirect lighting components, ensuring full compatibility with other rendering effects.
Key features include:
- Full integration into the rendering pipeline with automatic resource injection and native indirect lighting override.
- Dynamic lighting and object support, enabling real-time changes to objects, materials, and lighting. All moving objects—including skinned meshes—participate in global illumination, casting and receiving indirect lighting and shadows.
- Hybrid software ray tracing using a two-stage algorithm that combines screen-space and world-space data to deliver per-pixel lighting and accurate indirect shadows, without requiring dedicated hardware.
- Advanced denoising powered by ReSTIR GI with temporal and spatial passes, effectively reducing noise in complex lighting scenarios while preserving high-frequency details such as contact shadows and surface normals.
- Real-time scene voxelization using a GPU-driven system that builds a world-space tracing acceleration structure on the fly, featuring time-sliced voxelization, adaptive culling, and mesh LOD control.
- Irradiance cache that enables infinite light bounces in world space through automatic spatial hashing of lighting data.
- Full support for emissive lights, which function as real light sources, casting indirect shadows and contributing to global illumination with no upper limit on the number of emissive surfaces.
- Dynamic sky lighting and occlusion, where the sky acts as a real-time light source, delivering physically accurate lighting and occlusion.
- Automatic support for Unity's Adaptive Probe Volumes (APV) as a ray-miss fallback, ensuring smooth transitions between HTrace lighting and APV data, and accelerating multi-bounce light calculations.
- GPU instancing support via RenderX and native instancing for Terrain Trees and Terrain Details, enabling efficient voxelization of dense environments and rich vegetation, with provided examples and documentation for custom instancing shaders.
- Experimental support for Single Pass VR.
For more information, visit: https://assetstore.unity.com/packages/tools/level-design/htrace-world-space-global-illumination-300382
2025-10-27 00:00:00-update version:HTrace World Space Global Illumination(HDRP) v1.3.4
