{"id":912,"date":"2022-10-21T20:56:14","date_gmt":"2022-10-21T12:56:14","guid":{"rendered":"https:\/\/courtship.top\/?p=912"},"modified":"2022-10-21T20:56:14","modified_gmt":"2022-10-21T12:56:14","slug":"lecture13-ray-tracing-1","status":"publish","type":"post","link":"https:\/\/courtship.top\/index.php\/2022\/10\/21\/lecture13-ray-tracing-1\/","title":{"rendered":"Lecture13 Ray Tracing 1"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-147-1024x740.png\" alt=\"\" class=\"wp-image-915\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>\u5149\u6805\u5316\u4e0d\u5bb9\u6613\u505a\u5168\u5c40\u5149\u5f71\uff08\u8f6f\u9634\u5f71\uff09<\/li><li>Glossy\u7684\u53cd\u5c04\uff08\u8fd9\u79cd\u6750\u8d28\uff0c\u6709\u53cd\u5c04\u4f46\u53c8\u7c97\u7cd9\uff09\u4e0d\u5bb9\u6613\u505a<\/li><li>\u95f4\u63a5\u5149\u7167<\/li><li>\u5f39\u5c04\u5f88\u591a\u6b21\u7684\u5f88\u96be\uff0c\u8fd9\u662f\u5149\u6805\u5316\u7684\u5c40\u9650<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-148-1024x603.png\" alt=\"\" class=\"wp-image-924\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>\u5149\u7ea4\u8ffd\u8e2a\u7cbe\u786e\uff0c\u4f46<strong>\u975e\u5e38\u6162<\/strong><\/li><li>\u5b83\u901a\u5e38\u7528\u4f5c\u79bb\u7ebf\u7684\u5e94\u7528<\/li><li>\u4e00\u5e27\u5c31\u9700\u8981\u82b110kcpu\u5c0f\u65f6<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-149-1024x648.png\" alt=\"\" class=\"wp-image-926\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>\u5149\u7ebf\u662f\u5ef6\u76f4\u7ebf\u4f20\u64ad\u7684\uff08\u5176\u5b9e\u662f\u6ce2\u52a8\u7684\uff09<\/li><li>\u5149\u7ebf\u548c\u5149\u7ebf\u4e0d\u4f1a\u53d1\u751f\u78b0\u649e<\/li><li>\u5149\u7ebf\u80af\u5b9a\u662f\u4ece\u5149\u6e90\u51fa\u53d1\u6700\u540e\u5230\u8fbe\u773c\u775b\uff08reversal - reciprocity\uff09<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-150-1024x713.png\" alt=\"\" class=\"wp-image-927\"\/><figcaption>\u8fc7\u53bb\u7684\u8c2c\u8bba<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-151-1024x727.png\" alt=\"\" class=\"wp-image-929\"\/><figcaption>eye ray<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-152-1024x665.png\" alt=\"\" class=\"wp-image-931\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>Whitted-Style Ray Tracing<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-153-1024x601.png\" alt=\"\" class=\"wp-image-934\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>\u9012\u5f52\u7684\u53cd\u5c04<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Ray-Surface Intersection \u6c42\u5149\u7ebf\u4e0e\u7269\u4f53\u7684\u4ea4\u70b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5149\u7ebf\u5b9a\u4e49<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-154-1024x734.png\" alt=\"\" class=\"wp-image-936\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>\u5c04\u7ebf\u7531\u5176\u539f\u70b9\u548c\u65b9\u5411\u5411\u91cf\u5b9a\u4e49<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u5149\u7ebf\u548c\u6c42\u7684\u4ea4\u70b9<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-155-1024x665.png\" alt=\"\" class=\"wp-image-939\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-156-1024x388.png\" alt=\"\" class=\"wp-image-942\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-157-1024x711.png\" alt=\"\" class=\"wp-image-943\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>\u5149\u7ebf\u548c\u4e09\u89d2\u5f62\u6c42\u4ea4<\/li><li>\u6e32\u67d3\u4e0a\u53ef\u4ee5\uff1a\u53ef\u89c1\uff0c\u9634\u5f71\uff0c\u5149\u7167<\/li><li>\u56fe\u5f62\u4e0a\u53ef\u4ee5\uff1a\u5224\u65ad\u5728\u4e09\u89d2\u5f62\u5185\u6216\u5916<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-158-1024x588.png\" alt=\"\" class=\"wp-image-946\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e73\u9762\u7684\u5b9a\u4e49<br \/><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-159-1024x734.png\" alt=\"\" class=\"wp-image-947\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>\u5e73\u9762\u7531\u6cd5\u5411\u91cf\u548c\u5e73\u9762\u4e0a\u7684\u70b9\u5b9a\u4e49<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-160-1024x734.png\" alt=\"\" class=\"wp-image-949\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-161-1024x706.png\" alt=\"\" class=\"wp-image-951\"\/><figcaption>\u5149\u7ebf\u548c\u4e09\u89d2\u5f62\u7684\u4ea4\u70b9\u7b97\u6cd5\uff1aMT\u7b97\u6cd5<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u5149\u7ebf\u548c\u7269\u4f53\u6c42<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u5305\u56f4\u76d2 Bounding Volumes<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-162-1024x708.png\" alt=\"\" class=\"wp-image-956\"\/><\/figure>\n\n\n\n<ul 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alt=\"\" class=\"wp-image-964\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>\u4ece\u4e09\u7ef4\u7684\u60c5\u51b5\u4e0b\u662f\u4e09\u4e2a\u5bf9\u9762\uff0c\u53ea\u6709\u5f53\u5149\u7ebf\u90fd\u6ee1\u8db3\u5149\u7ebf\u8fdb\u53bb\u4e86\uff0c\u624d\u80fd\u8bc1\u660e\u5149\u7ebf\u8fdb\u53bb\u4e86<\/li><li>\u53cd\u4e4b\u53ea\u8981\u6709\u4e00\u5bf9\u9762\u6ca1\u6709\u5149\u7ebf\uff0c\u5149\u7ebf\u79bb\u5f00\u4e86\u76d2\u5b50<\/li><li>\u5bf9\u6bcf\u5bf9\u9762\u8ba1\u7b97\u6700\u5927\u65f6\u95f4\u548c\u6700\u5c0f\u65f6\u95f4\uff0c\u6c42\u51fa\u4e09\u7ec4\u7684\u8fdb\u5165\u6700\u5927\u503c\u548c\u79bb\u5f00\u6700\u5c0f\u503c\uff0c\u5206\u522b\u4e3a\u8fdb\u5165\u548c\u79bb\u5f00\u7684\u65f6\u95f4<\/li><li>\u5982\u679c\u8fdb\u5165\u7684\u65f6\u95f4\u5c0f\u4e8e\u79bb\u5f00\u7684\u65f6\u95f4\uff0c\u8bf4\u660e\u8fd9\u6bb5\u65f6\u95f4\u5149\u7ebf\u5728\u76d2\u5b50\u91cc<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/10\/\u56fe\u7247-166-1024x704.png\" alt=\"\" class=\"wp-image-967\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>\u5149\u7ebf\u4e0d\u662f\u4e00\u4e2a\u76f4\u7ebf\uff0c\u662f\u5c04\u7ebf\u3002<\/li><li>\u5982\u679c\u79bb\u5f00\u7684\u65f6\u95f4\u662f\u5c0f\u4e8e0\uff0c\u8bf4\u660e\u76d2\u5b50\u5728\u5149\u7ebf\u7684\u80cc\u540e\uff0c\u662f\u4e0d\u53ef\u80fd\u6709\u4ea4\u70b9\u7684<\/li><li>\u5982\u679c\u79bb\u5f00\u5927\u4e8e0\uff0c\u8fdb\u5165\u5c0f\u4e8e0\uff0c\u53ea\u6709\u5149\u7ebf\u7684\u8d77\u70b9\u5c31\u5728\u8fd9\u4e2a\u76d2\u5b50\u91cc\u8fd9\u4e00\u79cd\u60c5\u51b5<\/li><li>\u603b\u7ed3 \u5149\u7ebf\u548cAABB\u6709\u4ea4\u70b9\u5f53\u4e14\u4ec5\u5f53\u8fdb\u5165\u65f6\u95f4\u5c0f\u4e8e\u79bb\u5f00\u65f6\u95f4\uff0c\u4e14\u79bb\u5f00\u65f6\u95f4\u5927\u4e8e\u7b49\u4e8e0<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" 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