Luminance calibration of virtual reality displays in Unity.

Luminance calibration of virtual reality displays in Unity.
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DOI:
10.1167/jov.22.13.1
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发表时间:
2022-12-01
期刊:
影响因子:
1.8
通讯作者:
--
中科院分区:
医学4区
文献类型:
--
作者:

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虚拟现实(VR)显示器是一种越来越受欢迎的媒介,用于视觉感知实验。这就提出了一个挑战,即在主要不是为研究而设计的设备上显示精确控制的刺激。在这里,我们描述了使用内置渲染管道在Unity中创建的VR实验中控制刺激亮度的方法。我们将讨论Gamma/Linear设置,在VR头显中测量亮度,并在Unity的后处理堆栈中使用颜色分级使刺激亮度与非彩色RGB值成比例。我们提供MATLAB代码,使用来自VR头显的亮度测量值生成Unity线性化亮度所需的查找表。我们强调,在这种复杂的环境中创建实验时,重要的是要对渲染过程进行实验,以确认刺激按预期显示。我们展示了几个这样的测试的结果,并为希望运行与自己的研究相关的进一步测试的读者提供了代码作为起点。
Virtual reality (VR) displays are an increasingly popular medium for experiments on visual perception. This presents the challenge of showing precisely controlled stimuli on devices that were not primarily designed for research. Here we describe methods for controlling stimulus luminance in VR experiments created in Unity using the Built-in Render Pipeline. We discuss the Gamma/Linear setting, measuring luminance in a VR headset, and using color grading in Unity’s Post-Processing Stack to make stimulus luminance proportional to achromatic RGB value. We provide MATLAB code that uses luminance measurements from a VR headset to generate the lookup table that Unity requires for linearizing luminance. We emphasize that when creating experiments in this complex environment, it is important to experiment with the rendering process to confirm that stimuli are displayed as expected. We show results of several such tests and provide code as a starting point for readers who wish to run further tests related to their own research.
DOI: 10.1007/s42979-021-00855-7
发表时间: 2022
期刊: SN computer science
影响因子: --
作者:
Gil Rodríguez R;Bayer F;Toscani M;Guarnera D;Guarnera GC;Gegenfurtner KR
通讯作者: Gegenfurtner KR
DOI: 10.3390/electronics10222852
发表时间: 2021-11-01
期刊: ELECTRONICS
影响因子: 2.9
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通讯作者: Pardo, Pedro J.
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发表时间: 1997-01-01
期刊: SPATIAL VISION
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