{"topic":{"id":7115,"title":"实验 2.2 渲染结果问题","slug":"topic","categoryId":56,"createdAt":"2023-11-08 10:09:49.707578","bumpedAt":"2023-11-09 06:48:34.619081","views":286,"postsCount":2,"highestPostNumber":2,"likeCount":0,"closed":true,"pinned":false,"pinnedGlobally":false,"pinnedAt":null,"pinnedUntil":null,"isBanner":false,"excerpt":"参照之前同学们的提问和解答，z_buffer 实现更新也是针对三角形内的每一个像素点进行着色的按照 phong 着色方法着色渲染结果如首图所示，请问可能是哪里出了问题？","deletedAt":null,"isAnonymous":false,"category":{"id":56,"name":"计算机图形学","slug":"cg","color":"92278F"},"author":{"id":1509,"username":"yesbobo","name":"yesbobo","avatarUrl":null},"tags":[]},"posts":[{"id":16576,"postNumber":1,"raw":"![截屏 2023-11-08 18.03.56|664x500, 100%](/uploads/image/6d/8d/6d8dc4e1b1810d3f5b582e4f1a1d61181dcffac73b6aa39959f10369817ed576.avif)\n\n参照之前同学们的提问和解答，z_buffer 实现更新\n![截屏 2023-11-08 18.06.26|690x186](/uploads/image/a9/3e/a93e56fa19c5d4b876e5fd05821e1de9334c3ecd90002adf4b4e260a90b78964.avif)\n\n也是针对三角形内的每一个像素点进行着色的\n![截屏 2023-11-08 18.07.07|690x228](/uploads/image/00/ca/00cac30e3b7a3b79584195cf4457f97ca806101f6cf7bf42e36f3fb8535d7f02.avif)\n\n按照 phong 着色方法着色\n![截屏 2023-11-08 18.08.11|690x323](/uploads/image/18/b4/18b403ee3eb3ca893d8f050aede6928b03a68f29823c10542d0d21b636b99620.avif)\n\n渲染结果如首图所示，请问可能是哪里出了问题？","cooked":"

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参照之前同学们的提问和解答，z_buffer 实现更新
\n $\"截屏$

也是针对三角形内的每一个像素点进行着色的
\n $\"截屏$

按照 phong 着色方法着色
\n $\"截屏$

渲染结果如首图所示，请问可能是哪里出了问题？

\n","createdAt":"2023-11-08 10:09:49.81289","updatedAt":"2023-11-08 10:09:49.81289","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":90,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":1509,"username":"yesbobo","name":"yesbobo","avatarUrl":null,"admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":16638,"postNumber":2,"raw":"首先是你确实更新了 z-buffer。那么在着色的时候，是否检查了 z-buffer 呢？另外，在计算着色时，是否考虑了光强的衰减，每一个像素点的法线是否都是重心坐标插值得到的，请仔细对照检查一下","cooked":"

首先是你确实更新了 z-buffer。那么在着色的时候，是否检查了 z-buffer 呢？另外，在计算着色时，是否考虑了光强的衰减，每一个像素点的法线是否都是重心坐标插值得到的，请仔细对照检查一下

\n","createdAt":"2023-11-09 06:48:34.619081","updatedAt":"2023-11-09 06:48:34.619081","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":80,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":1488,"username":"roland","name":"李昌洲","avatarUrl":null,"admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}}],"hasMore":false,"lastReadPostNumber":1,"hasUrlPostNumber":false}