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发表于 2020-5-28 00:16 · 北京
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本帖最后由 MOMOHMOMO 于 2020-5-28 00:26 编辑
zctang305 发表于 2020-5-24 21:44
这个问题在另外一个帖子里已经讨论过了,麻烦你搞明白了再转文章。还有,你觉得怎么样就怎么样吧,其实和 ...
你们讨论有毛用,EPIC自己说用了,你们难不成觉得比人家TD更懂呗
Daniel Wright, 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. |
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