{"id":4511,"date":"2018-09-01T17:53:12","date_gmt":"2018-09-01T09:53:12","guid":{"rendered":"http:\/\/www.bookcard.net\/wordpress\/?p=4511"},"modified":"2018-09-01T17:53:12","modified_gmt":"2018-09-01T09:53:12","slug":"android_game_camera_lookat","status":"publish","type":"post","link":"https:\/\/www.bookcard.net\/wordpress\/android_game_camera_lookat\/","title":{"rendered":"Android\u904a\u6232\u4e4b\u8ddf\u96a8\u76f8\u6a5f"},"content":{"rendered":"<figure id=\"attachment_4512\" aria-describedby=\"caption-attachment-4512\" style=\"width: 1200px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2018\/09\/Android_Game_Camera_LookAt.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-4512\" src=\"https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2018\/09\/Android_Game_Camera_LookAt.jpg\" alt=\"\" width=\"1200\" height=\"800\" srcset=\"https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2018\/09\/Android_Game_Camera_LookAt.jpg 1200w, https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2018\/09\/Android_Game_Camera_LookAt-300x200.jpg 300w, https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2018\/09\/Android_Game_Camera_LookAt-768x512.jpg 768w, https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2018\/09\/Android_Game_Camera_LookAt-1024x683.jpg 1024w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/a><figcaption id=\"caption-attachment-4512\" class=\"wp-caption-text\">Android\u904a\u6232\u4e4b\u8ddf\u96a8\u76f8\u6a5f<\/figcaption><\/figure>\n<p>\u300e\u8ddf\u96a8\u76f8\u6a5f\u300f\u8207\u300e\u6b50\u62c9\u76f8\u6a5f\u300f\u5582\u4e00\u5340\u5225\u5728\u65bc\u5c6c\u6027\u8a2d\u7f6e\u4e0d\u540c.\u8ddf\u96a8\u76f8\u6a5f\u5e38\u5c07\u5b83\u56fa\u5b9a\u5728\u79fb\u52d5\u7269\u9ad4\u4e0a.\u5b83\u9700\u8981\u4ee5\u4e0b\u5c6c\u6027:<\/p>\n<p>3D\u7a7a\u9593\u4f4d\u7f6eposition<\/p>\n<p>\u5411\u4e0a\u5411\u91cf.\u76f8\u7576\u65bc\u5728\u76f8\u6a5f\u4e0a\u8cbc\u4e0a\u4e00\u500b\u5411\u4e0a\u7bad\u982dup<\/p>\n<p>\u8996\u9ede\u5411\u91cf\u5373\u76f8\u6a5f\u8996\u53e3\u671d\u5411\u76ee\u6a19lookAt<\/p>\n<p>\u9060\u88c1\u526a\u9762far<\/p>\n<p>\u8fd1\u88c1\u526a\u9762near<\/p>\n<p>\u300e\u8996\u5834\u300f\u5373\u8996\u53e3\u89d2\u5ea6fieldOfView<\/p>\n<p>\u8996\u53e3\u7e31\u6a6b\u6bd4aspectRatio<\/p>\n<p>\u518d\u79fb\u52d5\u76f8\u6a5f\u6642\u4f60\u9700\u8981\u5206\u88ab\u76f8\u6a5f\u300e\u4f4d\u7f6e\u300f\u8207\u300e\u8996\u9ede\u300f.\u300e\u8ddf\u96a8\u76f8\u6a5f\u300f\u751f\u6210\u4ee3\u78bc:<\/p>\n<p>\u8a2d\u5b9a\u76f8\u6a5f\u8996\u53e3,\u5bec\u8207\u9ad8\u70ba\u5c4f\u5e55\u5206\u8fa8\u7387<\/p>\n<p>gl.glViewport(0,0,width,height);<\/p>\n<p>\u8a2d\u7f6e\u76f8\u6a5f\u77e9\u9663,\u5c07\u7576\u524d\u5806\u68e7\u8a2d\u70ba\u6295\u5f71\u77e9\u9663<\/p>\n<p>gl.glMatrixMode(GL10.GL_PROJECTION);<\/p>\n<p>\u68e7\u9802\u8f09\u5165\u55ae\u4f4d\u77e9\u9663<\/p>\n<p>gl.glLoadIdentity();<\/p>\n<p>\u8a2d\u7f6e\u900f\u8996\u6295\u5f71\u77e9\u9663.\u5b9a\u7fa9\u8996\u9310\u9ad4\u53c3\u6578.\u300e\u8996\u53e3\u89d2\u5ea6\u300f\u300e\u8996\u53e3\u7e31\u6a6b\u6bd4\u300f\u300e\u9060\u8fd1\u88c1\u526a\u9762\u300f<\/p>\n<p>GLU.gluPerspective(gl, fieldOfView, aspectRation, near, far);<\/p>\n<p>\u5c07\u7576\u524d\u5806\u68e7\u8a2d\u70ba\u6a21\u578b\u8996\u5716\u77e9\u9663<\/p>\n<p>gl.glMatrixMode(GL10.GL_MODELVIEW);<\/p>\n<p>\u68e7\u9802\u8f09\u5165\u55ae\u4f4d\u77e9\u9663<\/p>\n<p>gl.glLoadIdentity();<\/p>\n<p>\u751f\u6210\u65b9\u4f4d\u77e9\u9663,\u597d\u8655\u5728\u65bc\u80fd\u9632\u6b62\u51fa\u73fe\u5f04\u53cd\u4f4d\u7f6e\u6216\u89d2\u5ea6<\/p>\n<p>GLU.gluLookAt(gl, position.x,position.y,position.z,<\/p>\n<p>lookAt.x, lookAt.y, lookAt.z,<\/p>\n<p>up.x, up.y, up.z);<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u300e\u8ddf\u96a8\u76f8\u6a5f\u300f\u8207\u300e\u6b50\u62c9\u76f8\u6a5f\u300f\u5582\u4e00\u5340\u5225\u5728\u65bc\u5c6c\u6027\u8a2d\u7f6e\u4e0d\u540c.\u8ddf\u96a8\u76f8\u6a5f\u5e38\u5c07\u5b83\u56fa\u5b9a\u5728\u79fb\u52d5\u7269\u9ad4\u4e0a.\u5b83\u9700\u8981\u4ee5\u4e0b\u5c6c\u6027: 3D\u7a7a\u9593 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.bookcard.net\/wordpress\/android_game_camera_lookat\/\" class=\"more-link\">\u7e7c\u7e8c\u95b1\u8b80 <span class=\"screen-reader-text\">Android\u904a\u6232\u4e4b\u8ddf\u96a8\u76f8\u6a5f<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[2,50],"class_list":["post-4511","post","type-post","status-publish","format-standard","hentry","category-android","tag-android","tag-opengl","entry"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/4511","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/comments?post=4511"}],"version-history":[{"count":1,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/4511\/revisions"}],"predecessor-version":[{"id":4513,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/4511\/revisions\/4513"}],"wp:attachment":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/media?parent=4511"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/categories?post=4511"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/tags?post=4511"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}