XRay is a gpu renderer for interior rendering. we can edit scene and material in unreal engine3/unreal engine4/unity 3d. and rendering it in xray.

there are some problem with this render:

1)how to build a bvh or kd-tree on gpu?

2)how to accelerate memory reading when  traverse bvh/kd-tree?

email:yjlh1234@sina.com

there is a video show interactive rendering.