Lunatic_Gamer
Gold Member
The Unreal Engine 5 demo that was recently shown off running on the PS5 started a slew of discussions across different forums and media. This includes the resolution and frame rates of the demo, the technologies used, and how it compares against contemporary PC hardware.
Today we are going to look at another such facet of the PS5 demo, namely the lighting. Epic has been touting it Lumen GI as a next-generation global illumination technology, and now we have a better idea of how it actually works. In an interview, Daniel Wright, the Technical Director of Graphics at Epic, said:
Lumen uses ray tracing to solve indirect lighting, but not triangle ray tracing. Lumen traces rays against a scene representation consisting of signed distance fields, voxels, and height fields. As a result, it requires no special ray tracing hardware.
Lumen uses a combination of different techniques to efficiently trace rays. Screen-space traces handle tiny details, mesh signed distance field traces handle medium-scale light transfer and voxel traces handle large scale light transfer.
Today we are going to look at another such facet of the PS5 demo, namely the lighting. Epic has been touting it Lumen GI as a next-generation global illumination technology, and now we have a better idea of how it actually works. In an interview, Daniel Wright, the Technical Director of Graphics at Epic, said:
Lumen uses ray tracing to solve indirect lighting, but not triangle ray tracing. Lumen traces rays against a scene representation consisting of signed distance fields, voxels, and height fields. As a result, it requires no special ray tracing hardware.
Lumen uses a combination of different techniques to efficiently trace rays. Screen-space traces handle tiny details, mesh signed distance field traces handle medium-scale light transfer and voxel traces handle large scale light transfer.
The Unreal 5 Demo on the PS5 Used Software Ray-Tracing Similar to ReShade's Ray-Tracing Shader (Ray Traced GI) | Hardware Times
The Unreal Engine 5 demo that was recently shown off running on the PS5 started a slew of discussions across different forums and media. This includes the resolution and frame rates of the demo, the technologies used, and how it compares against contemporary PC hardware: The PS5 Demo (Running @...
www.hardwaretimes.com
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