{"topic":{"id":7355,"title":"2.4 cast_ray 函数对于漫反射材质颜色计算问题","slug":"topic","categoryId":56,"createdAt":"2023-11-18 11:50:26.81395","bumpedAt":"2023-11-18 12:04:17.172776","views":231,"postsCount":2,"highestPostNumber":2,"likeCount":0,"closed":true,"pinned":false,"pinnedGlobally":false,"pinnedAt":null,"pinnedUntil":null,"isBanner":false,"excerpt":"单独一个 cow 文件采取 2.2 参数时渲染结果如上图，看起来是只有高光的部分计算成功（不知道看起来是否正确）而 diffuse 没有正确计算颜色计算过程如上","deletedAt":null,"isAnonymous":false,"category":{"id":56,"name":"计算机图形学","slug":"cg","color":"92278F"},"author":{"id":283,"username":"R1ac","name":null,"avatarUrl":null},"tags":[]},"posts":[{"id":17448,"postNumber":1,"raw":"![2a22395402c1a80bcf59806cee85371|595x500](/uploads/image/e1/72/e172f957c629742e149dfba0d13f72b998b9bb374c885252aa03ad33f2b8a21d.avif)\n单独一个 cow 文件采取 2.2 参数时渲染结果如上图，看起来是只有高光的部分计算成功（不知道看起来是否正确）而 diffuse 没有正确计算\n![image|659x400](/uploads/image/e3/dd/e3dd1a37bced9db379ebb681d1505bbfd0c29133b13c39da43d637861cb1bfcd.avif)\n颜色计算过程如上","cooked":"

$\"2a22395402c1a80bcf59806cee85371\"$
\n单独一个 cow 文件采取 2.2 参数时渲染结果如上图，看起来是只有高光的部分计算成功（不知道看起来是否正确）而 diffuse 没有正确计算
\n $\"image\"$
\n颜色计算过程如上

\n","createdAt":"2023-11-18 11:50:26.937345","updatedAt":"2023-11-18 11:50:26.937345","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":66,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":283,"username":"R1ac","name":null,"avatarUrl":null,"admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":17450,"postNumber":2,"raw":"![image|642x500](/uploads/image/d4/07/d407ab677c15df2c1d3f7b2da68f2ab8775b2aaa7a2972fcecb109829214c75e.avif)\n输出原 diffuse 是计算结果全 0，于是尝试了一下将 diffuse 计算中的-LD 换成了 LD 出现了上述结果 :cry:","cooked":"

$\"image\"$
\n输出原 diffuse 是计算结果全 0，于是尝试了一下将 diffuse 计算中的-LD 换成了 LD 出现了上述结果 😢

\n","createdAt":"2023-11-18 12:04:17.172776","updatedAt":"2023-11-18 12:04:17.172776","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":38,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":283,"username":"R1ac","name":null,"avatarUrl":null,"admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}}],"hasMore":false,"lastReadPostNumber":1,"hasUrlPostNumber":false}