Article(id=1153756968217989248, tenantId=1146029695717560320, journalId=1152916057816748034, issueId=1153756963994329869, articleNumber=null, orderNo=null, doi=10.3969/j.issn.2095‒1469.2025.02.12, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1730736000000, receivedDateStr=2024-11-05, revisedDate=1732377600000, revisedDateStr=2024-11-24, acceptedDate=null, acceptedDateStr=null, onlineDate=1753006696991, onlineDateStr=2025-07-20, pubDate=1742400000000, pubDateStr=2025-03-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753006696991, onlineIssueDateStr=2025-07-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753006696991, creator=13701087609, updateTime=1753006696991, updator=13701087609, issue=Issue{id=1153756963994329869, tenantId=1146029695717560320, journalId=1152916057816748034, year='2025', volume='15', issue='2', pageStart='125', pageEnd='262', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1753006695984, creator=13701087609, updateTime=1757654146268, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1173249783352410923, tenantId=1146029695717560320, journalId=1152916057816748034, issueId=1153756963994329869, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1173249783352410924, tenantId=1146029695717560320, journalId=1152916057816748034, issueId=1153756963994329869, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=245, endPage=252, ext={EN=ArticleExt(id=1153756968624836738, articleId=1153756968217989248, tenantId=1146029695717560320, journalId=1152916057816748034, language=EN, title=Development and Application of a Vehicle Virtual Simulation System Based on Real-Time Ray Tracing, columnId=1153756966938731297, journalTitle=Chinese Journal of Automotive Engineering, columnName=Other Technologies, runingTitle=null, highlight=null, articleAbstract=
This paper discusses the challenges of applying virtual reality (VR) in visual simulation and real-time rendering for automotive research and development. Focusing on the application scenarios and practical needs of automotive virtual development, a high-performance VR computing system based on real-time ray tracing and parallel rendering has been established for the first time among domestic automotive companies. By using the Bounding Volume Hierarchy (BVH) acceleration structure while optimizing algorithm parameters and network configuration, high-precision real-time visualization of large-scale vehicle models has been achieved. The offline rendering process, which previously took several hours, has been optimized to real-time rendering in just 1~2 seconds. The system effectively simulates ambient light refraction and reflection on parts, light uniformity and leakage, and physical occlusion between parts. Compared with traditional rasterization rendering, this approach has made a significant breakthrough, achieving over 90% physical realism. Through full-process implementation in several vehicle projects, it has replaced many physical models and reduced sample costs in the R&D process.
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阐述了汽车研发中虚拟现实技术在可视化仿真与实时显示上所面临的挑战,围绕汽车虚拟开发的应用场景和实际需求,在国内车企首次建立了一种基于实时光线追踪及并行渲染的虚拟现实高性能运算系统,并通过层级包围体(BVH)加速结构,算法参数调优和网络配置优化,实现了大体量整车模型高精度实时快速可视化仿真,将原本数小时的离线渲染优化为1~2 s实时渲染,并能有效模拟环境光对零件的折射反射、灯光均匀性及漏光、零件间的物理遮挡等,较传统光栅化渲染有本质上的提升,物理真实度达到90%以上。通过在几个整车项目中的全流程实践,已替代研发流程中大量物理模型和样件费用。
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, authorsList=董贇瑜)}, authors=[Author(id=1175545984785462004, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=dongyunyu@csvw.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1175545984856765174, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, authorId=1175545984785462004, language=EN, stringName=Yunyu DONG, firstName=Yunyu, middleName=null, lastName=DONG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=SAIC Volkswagen Automotive Co.,Ltd.,Shanghai 201805,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1175545984928068343, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, authorId=1175545984785462004, language=CN, stringName=董贇瑜, firstName=贇瑜, middleName=null, lastName=董, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=上汽大众汽车有限公司, 上海 201805, bio={"img":"23RlobwoEj7iBnRZssQt8Q==","content":"
董贇瑜(1984-),女,上海市人,硕士,高级工程师,主要研究方向为虚拟增强现实技术、并行计算、整车质量感知和整车能效管理。 E-mail:dongyunyu@csvw.com
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董贇瑜(1984-),女,上海市人,硕士,高级工程师,主要研究方向为虚拟增强现实技术、并行计算、整车质量感知和整车能效管理。 E-mail:dongyunyu@csvw.com
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Computer Applications and Software,
2017,
34(10):113-117.(in Chinese), articleTitle=A Network-Based Parallel Rendering and Cross Platform Synchronous Display System, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1175545984714158832, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, xref=null, ext=[AuthorCompanyExt(id=1175545984722547441, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, companyId=1175545984714158832, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=SAIC Volkswagen Automotive Co.,Ltd.,Shanghai 201805,China), AuthorCompanyExt(id=1175545984726741746, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, companyId=1175545984714158832, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=上汽大众汽车有限公司, 上海 201805)])], figs=[ArticleFig(id=1175545985892758274, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=EN, label=null, caption=null, figureFileSmall=PV+HdEbiJxwQjWZ7CqYn3w==, figureFileBig=mdjS9NxfEkIJ3/JLQKDdbg==, tableContent=null), ArticleFig(id=1175545985964061443, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=CN, label=图1, caption=
光线追踪原理, figureFileSmall=PV+HdEbiJxwQjWZ7CqYn3w==, figureFileBig=mdjS9NxfEkIJ3/JLQKDdbg==, tableContent=null), ArticleFig(id=1175545986022781700, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=EN, label=null, caption=null, figureFileSmall=gAPzTgJN84QlKSiLuQL+hg==, figureFileBig=+O7CLft9F+z9bQQ09At5TQ==, tableContent=null), ArticleFig(id=1175545986098279173, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=CN, label=图2, caption=
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基于CPU实时光线追踪的计算衰减测试, figureFileSmall=g6FooNau8J62+kIqSehVWw==, figureFileBig=yiXiisKOsYIYp2CpNvO9zg==, tableContent=null), ArticleFig(id=1175545986324771592, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=EN, label=null, caption=null, figureFileSmall=O8Jld93f1dPbHf3Lr4Bmeg==, figureFileBig=5Q0b/uLAU8N0arMM5+RUig==, tableContent=null), ArticleFig(id=1175545986383491849, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=CN, label=图4, caption=
基于实时光线追踪及并行渲染结构的高精度数字模型仿真架构设计, figureFileSmall=O8Jld93f1dPbHf3Lr4Bmeg==, figureFileBig=5Q0b/uLAU8N0arMM5+RUig==, tableContent=null), ArticleFig(id=1175545986442212106, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=EN, label=null, caption=null, figureFileSmall=pDn/6QxuUe5z7vO0g0r0zg==, figureFileBig=efzT59J+Sdg7WyzTGWg4hw==, tableContent=null), ArticleFig(id=1175545986500932363, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=CN, label=图5, caption=
集群系统硬件架构, figureFileSmall=pDn/6QxuUe5z7vO0g0r0zg==, figureFileBig=efzT59J+Sdg7WyzTGWg4hw==, tableContent=null), ArticleFig(id=1175545986572235532, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=EN, label=null, caption=null, figureFileSmall=yBdAj1Qj3xFtshIKQ3qJUQ==, figureFileBig=LbJ/7SZaNDAGO7Os9XRGrA==, tableContent=null), ArticleFig(id=1175545986630955789, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=CN, label=图6, caption=
算力管理单元, figureFileSmall=yBdAj1Qj3xFtshIKQ3qJUQ==, figureFileBig=LbJ/7SZaNDAGO7Os9XRGrA==, tableContent=null), ArticleFig(id=1175545986685481742, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=EN, label=null, caption=null, figureFileSmall=OQen/zdX5rPwqv5QJrldvg==, figureFileBig=aP2+jRkM69QjhhoPhSUTUQ==, tableContent=null), ArticleFig(id=1175545986748396303, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=CN, label=图7, caption=
万兆网络模块, figureFileSmall=OQen/zdX5rPwqv5QJrldvg==, figureFileBig=aP2+jRkM69QjhhoPhSUTUQ==, tableContent=null), ArticleFig(id=1175545986802922256, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=EN, label=null, caption=null, figureFileSmall=IFbgtyPC2kS+gDP+AsLzlg==, figureFileBig=DyuKtDSQBCXCBPhSTewkEA==, tableContent=null), ArticleFig(id=1175545986878419729, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=CN, label=图8, caption=
光栅化渲染情况下内后视镜中反射, figureFileSmall=IFbgtyPC2kS+gDP+AsLzlg==, figureFileBig=DyuKtDSQBCXCBPhSTewkEA==, tableContent=null), ArticleFig(id=1175545986932945682, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=EN, label=null, caption=null, figureFileSmall=QoSHTuxPNZ639iMEseo8MA==, figureFileBig=BZUwL5bTLYdonx11P0lFpw==, tableContent=null), ArticleFig(id=1175545987008443155, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=CN, label=图9, caption=
实时光线追踪情况下内后视镜中反射, figureFileSmall=QoSHTuxPNZ639iMEseo8MA==, figureFileBig=BZUwL5bTLYdonx11P0lFpw==, tableContent=null), ArticleFig(id=1175545987067163412, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=EN, label=null, caption=null, figureFileSmall=tfDCkL7DVsl6R2ocAjlXLw==, figureFileBig=zNU0yKXuPx+WCHtjMOf0Cg==, tableContent=null), ArticleFig(id=1175545987125883669, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=CN, label=图10, caption=
光栅化渲染下前盖和格栅大灯的遮挡关系, figureFileSmall=tfDCkL7DVsl6R2ocAjlXLw==, figureFileBig=zNU0yKXuPx+WCHtjMOf0Cg==, tableContent=null), ArticleFig(id=1175545987205575446, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=EN, label=null, caption=null, figureFileSmall=r7pgJ4lck15Pjeg+VXTEOg==, figureFileBig=JXL+KGdpdawOsxVFj+3k6g==, tableContent=null), ArticleFig(id=1175545987272684311, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=CN, label=图11, caption=
实时光线追踪情况下前盖和格栅大灯的遮挡关系, figureFileSmall=r7pgJ4lck15Pjeg+VXTEOg==, figureFileBig=JXL+KGdpdawOsxVFj+3k6g==, tableContent=null), ArticleFig(id=1175545987348181784, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=EN, label=null, caption=null, figureFileSmall=Tu2jUzej3qCQfFMNkYV4jQ==, figureFileBig=X84nls8Rkala7PFacTOw1g==, tableContent=null), ArticleFig(id=1175545987406902041, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=CN, label=图12, caption=
光栅化渲染下黑色塑料件在镀铬件上无遮挡阴影, figureFileSmall=Tu2jUzej3qCQfFMNkYV4jQ==, figureFileBig=X84nls8Rkala7PFacTOw1g==, tableContent=null), ArticleFig(id=1175545987478205210, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=EN, label=null, caption=null, figureFileSmall=Fe6d13vuG22DM2h7KOiWYw==, figureFileBig=iF8QvDrYQswcEJA/VqRLxA==, tableContent=null), ArticleFig(id=1175545987536925467, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=CN, label=图13, caption=
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实拍和基于实时光线追踪的反射效果对比, figureFileSmall=K/BO7mB6qr7VKHXve19FvA==, figureFileBig=U1nzlOdlbss4WLZd4/Mqzw==, tableContent=null), ArticleFig(id=1175545987738252062, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=EN, label=null, caption=null, figureFileSmall=k+X0HAWMed5yjNx139rVKA==, figureFileBig=aHgLaOVmAmqp9ezQPQ3OGA==, tableContent=null), ArticleFig(id=1175545987796972319, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=CN, label=图15, caption=
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实时光线追踪下的内部灯光模拟, figureFileSmall=rA2Al55H8nJT4vhZaFLt9Q==, figureFileBig=2xOURpTq55nGPON4b1BdfA==, tableContent=null), ArticleFig(id=1175545987968938786, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153756968217989248, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| IBL采样 质量 | 反射折射采样质量 | 追踪深度 | 外形(FPS) | 内饰(FPS) |
| 1 | 1 | 8 | 35 | 27 |
| 2 | 2 | 8 | 22 | 17 |
| 4 | 4 | 8 | 12 | 7 |
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实时光线追踪参数优化测试
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| IBL采样 质量 | 反射折射采样质量 | 追踪深度 | 外形(FPS) | 内饰(FPS) |
| 1 | 1 | 8 | 35 | 27 |
| 2 | 2 | 8 | 22 | 17 |
| 4 | 4 | 8 | 12 | 7 |
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| 区域 | 实拍最大 宽度/mm | 实拍照明度/(lm/m2) | 模拟最大 宽度/mm | 模拟照明度/(lm/m2) |
| 1 | 32.0 | 960.15 | 32.0 | 1 001.23 |
| 2 | 10.4 | 396.26 | 10.5 | 412.45 |
| 3 | 8.5 | 439.82 | 8.6 | 452.67 |
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实拍和基于实时光线追踪的反射区域范围和照明度对比
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| 区域 | 实拍最大 宽度/mm | 实拍照明度/(lm/m2) | 模拟最大 宽度/mm | 模拟照明度/(lm/m2) |
| 1 | 32.0 | 960.15 | 32.0 | 1 001.23 |
| 2 | 10.4 | 396.26 | 10.5 | 412.45 |
| 3 | 8.5 | 439.82 | 8.6 | 452.67 |
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