高效的双筒染体密度场与相结合的自适应立方体地图射线行进为虚拟现实
IEEE transactions on visualization and computer graphics
|October 6, 2023
概括
本研究引入了一种用于实时染复杂虚拟现实 (VR) 场景的新方法,该场景具有多个体积密度场和全局照明 (GI). 该技术提高了双眼VR显示器的视觉质量和性能.
科学领域:
- 计算机图形 计算机图形
- 虚拟现实 虚拟现实 虚拟现实
- 科学可视化科学可视化
背景情况:
- 在虚拟现实 (VR) 中染多个体积密度场对实时性能和视觉质量提出了重大挑战.
- 复杂的环境经常将体积数据与几何模型和物理模拟混合在一起,要求高效的染解决方案.
研究的目的:
- 开发一种高效的实时染方案,用于高分辨率双眼VR显示器上具有全球照明 (GI) 效应的不同半透明体积密度场.
- 解决复杂VR环境的染质量和性能方面的挑战.
主要方法:
- 一种使用多分辨率立方体地图与交联自适应采样来处理双筒工作负载的合射线标记技术.
- 一种动态环境GI近似方法利用球体波 (SH) 转换信息来减少射线采样.
- 一个双相光线跟踪算法,带有式k缓冲区,用于快速处理多个体积实例的顺序独立透明度 (OIT).
主要成果:
- 在开发人员限制的预算内实现了高质量和高性能实时动态体积染.
- 在混合环境中,将体积和几何数据结合起来,在高分辨率的双眼VR染中证明了其实用性.
- 拟议的方案有效地解决了双眼射线行进,GI近似和多体积透明度.
结论:
- 新的染方案使VR中复杂的体积数据的高效和高保真可视化成为可能.
- 该方法支持混合网状体积染,证明了它对高级VR应用的实用实用性.
- 这项工作推进了对苛刻的虚拟现实可视化需求的实时染能力.
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