{"id":267,"date":"2014-08-10T23:27:00","date_gmt":"2014-08-10T15:27:00","guid":{"rendered":"http:\/\/www.animator.idv.tw\/?p=267"},"modified":"2015-01-31T16:52:30","modified_gmt":"2015-01-31T08:52:30","slug":"%e5%a4%a2%e5%b7%a5%e5%bb%a0%e5%8b%95%e7%95%ab%e5%9c%a8openexr-2-2%e8%b2%a2%e7%8d%bblossy-compression-%e5%a3%93%e7%b8%ae%e6%a8%99%e6%ba%96-2","status":"publish","type":"post","link":"https:\/\/www.animator.idv.tw\/?p=267","title":{"rendered":"\u5922\u5de5\u5ee0\u52d5\u756b\u5728OpenEXR 2.2\u8ca2\u737bLossy Compression \u58d3\u7e2e\u6a19\u6e96"},"content":{"rendered":"<p><a href=\"https:\/\/www.animator.idv.tw\/wp-content\/uploads\/2014\/08\/dreamworks-animation-contributes-lossy-compression-openexr-2.2.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.animator.idv.tw\/wp-content\/uploads\/2014\/08\/dreamworks-animation-contributes-lossy-compression-openexr-2.2-1024x435.jpg\" alt=\"dreamworks-animation-contributes-lossy-compression-openexr-2.2\" width=\"800\" height=\"339\" class=\"aligncenter size-large wp-image-265\" srcset=\"https:\/\/www.animator.idv.tw\/wp-content\/uploads\/2014\/08\/dreamworks-animation-contributes-lossy-compression-openexr-2.2-1024x435.jpg 1024w, https:\/\/www.animator.idv.tw\/wp-content\/uploads\/2014\/08\/dreamworks-animation-contributes-lossy-compression-openexr-2.2-300x127.jpg 300w, https:\/\/www.animator.idv.tw\/wp-content\/uploads\/2014\/08\/dreamworks-animation-contributes-lossy-compression-openexr-2.2-150x63.jpg 150w, https:\/\/www.animator.idv.tw\/wp-content\/uploads\/2014\/08\/dreamworks-animation-contributes-lossy-compression-openexr-2.2.jpg 1280w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><br \/>\n\u5922\u5de5\u5ee0\u52d5\u756b(Dreamworks Animation)\u8ca2\u737b\u81ea\u5df1\u7684\u5c08\u5229\u6280\u8853\uff0c\u5c07\u9ad8\u88fd\u4f5c\u54c1\u8cea\u7684\u58d3\u7e2e\u683c\u5f0fLossy Compression Codec\u52a0\u5165\u81f3OpenEXR\u7684\u6a19\u6e96\u4e2d\uff0cDreamWorks Lossy Compression\u7b56\u7565\u4e0a\u79fb\u9664\u4e86\u5728\u7279\u6548\u8207\u52d5\u756b\u88fd\u4f5c\u6d41\u7a0b\u4e2d\u5e38\u7528\u7684floating-point(\u6d6e\u9ede)High Dynamic Range(HDR)\u683c\u5f0f\u7684\u8cc7\u8a0a\uff0c\u8a72\u6280\u8853\u662f\u7531(PDI Dreamworks)\u9996\u5e2d\u5de5\u7a0b\u5e2bKarl Rasche\u6240\u767c\u660e\uff0c\u4fdd\u7559\u8996\u89ba\u4e0a\u7684\u54c1\u8cea\u6c92\u6709\u58d3\u7e2e\u5931\u771f\uff0c\u64c1\u6709\u826f\u597d\u7684\u89e3\u58d3\u7e2e\u6548\u7387\uff0c\u8207\u4f7f\u7528\u56fa\u5b9a\u7bc4\u570d\u5716\u50cf\u7684\u8fd1\u4f3c\u5927\u5c0f\u6e1b\u5c11\u4e86HDR\u6d6e\u9ede\u5716\u6a94\u7684\u5927\u5c0f\uff0c\u58d3\u7e2e\u54c1\u8cea\u5df2\u7d93\u900f\u904e\u5922\u5de5\u5ee0\u52d5\u756b\u7684\u7279\u6548\u88fd\u4f5c\u9a57\u8b49\u4e86\u3002<\/p>\n<p>OpenEXR\u7684\u958b\u767c\u8005\uff0cIndustrial Light &#038; Magic(ILM)\u5df2\u7d93\u78ba\u8a8d\u5922\u5de5\u5ee0\u7684Lossy Compression\u6703\u57282014\/8\/10\u65e5\u5728OpenEXR 2.2\u4e2d\u767c\u5e03\uff0cAPI\u8207\u73fe\u6709\u7684\u7248\u672c\u76f8\u5bb9\u3002\u4e0d\u540c\u65bc\u73fe\u6709\u7684lossy OpenEXR compression\u683c\u5f0f\uff0c\u5922\u5de5\u5ee0\u7684Lossy Compression\u5141\u8a31\u53ef\u8b8a\u7684lossiness\u4f86\u5e73\u8861\u8996\u89ba\u54c1\u8cea\u7684\u5e73\u8861\u8207\u57fa\u790e\u7d50\u69cb\u8cc7\u6e90\u3002\u6b64\u5916\uff0c\u6b64\u6b21\u8ca2\u737b\u5305\u62ecPIZ\u7684\u58d3\u7e2e\u986f\u8457\u7684\u52a0\u901f\u3002<\/p>\n<p>&#8220;\u5728\u9810\u8a2d\u58d3\u7e2e\u683c\u5f0f\u6c92\u6709\u660e\u986f\u7684\u58d3\u7e2e\u5931\u771f\u4ee4\u4eba\u5370\u8c61\u6df1\u523b\uff0c\u53cd\u8986\u7684\u5728\u61c9\u7528\u7a0b\u5f0f\u4f7f\u7528\u540c\u4e00\u500b\u5716\u50cf\u5728\u7b2c\u4e00\u6b21\u58d3\u7e2e\u5f8c\u6c92\u6709\u66f4\u9032\u4e00\u6b65\u7684\u640d\u5931\uff0c\u76f8\u8f03\u65bc\u5176\u4ed6\u7684\u6a19\u6e96\u7684lossy\u65b9\u6cd5\uff0c\u9019\u500b\u65b0\u6280\u8853\u5728\u985e\u4f3c\u7684\u58d3\u7e2e\u6bd4\u4e2d\u88fd\u4f5c\u51fa\u66f4\u9ad8\u54c1\u8cea\u7684\u5716\u50cf\uff0c\u800c\u4e14\u89e3\u58d3\u7e2e\u5716\u50cf\u975e\u5e38\u5feb&#8221;\uff0cEd Hanway(ILM R&#038;D Supervisor)\u8aaa\uff0c&#8221;\u6211\u5011\u6b61\u8fce\u589e\u52a0\u6280\u8853\u5230OpenEXR&#8221;<\/p>\n<p>Dave Walvoord, How To Train Your Dragon 2\u3000VFX supervisor\u6307\u51fa\uff1a&#8221;\u4f7f\u7528\u5922\u5de5\u5ee0\u7684Lossy Compression\u7684\u5716\u50cf\u6709\u4ee4\u4eba\u9a5a\u5606\u7684\u9ad8\u54c1\u8cea\u8207\u7121\u7455\u75b5\uff0c\u4e0d\u7528\u50cf\u5176\u4ed6\u7684\u58d3\u7e2e\u6280\u8853\u8655\u7406\u5716\u50cf\u96dc\u8a0a\uff0c\u5728\u6211\u5011\u7dca\u5bc6\u7684\u88fd\u4f5c\u6d41\u7a0b\u4e2d\u7bc0\u7701\u5bf6\u8cb4\u7684\u6642\u9593\u3002&#8221;<\/p>\n<p>\u5922\u5de5\u5ee0\u7684Lossy Compression\u662f\u8a72\u5de5\u4f5c\u5ba4\u8d70\u5411open source\u8edf\u9ad4\u4f86\u4f7f\u5716\u50cf\u6280\u8853\u9032\u6b65\u7684\u53e6\u4e00\u500b\u4f8b\u5b50\u3002<\/p>\n<p>\u53c3\u8003\u8cc7\u6599<br \/>\n<a href=\"http:\/\/www.cgw.com\/Press-Center\/Siggraph\/2014\/DreamWorks-contributes-Lossy-Compression-to-Open.aspx\">DreamWorks-contributes-Lossy-Compression-to-OpenEXR 2.2<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5922\u5de5\u5ee0\u52d5\u756b(Dreamworks Animation)\u8ca2\u737b\u81ea\u5df1\u7684\u5c08\u5229\u6280\u8853\uff0c\u5c07\u9ad8\u88fd\u4f5c\u54c1\u8cea\u7684\u58d3\u7e2e\u683c\u5f0fLossy Compression Codec\u52a0\u5165\u81f3OpenEXR\u7684\u6a19\u6e96\u4e2d\uff0cDreamWorks Los\u2026<\/p>\n<p class=\"continue-reading-button\"> <a class=\"continue-reading-link\" href=\"https:\/\/www.animator.idv.tw\/?p=267\">\u7e7c\u7e8c\u95b1\u8b80<i class=\"crycon-right-dir\"><\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":265,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[14,78,12],"_links":{"self":[{"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=\/wp\/v2\/posts\/267"}],"collection":[{"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=267"}],"version-history":[{"count":3,"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=\/wp\/v2\/posts\/267\/revisions"}],"predecessor-version":[{"id":270,"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=\/wp\/v2\/posts\/267\/revisions\/270"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=\/wp\/v2\/media\/265"}],"wp:attachment":[{"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=267"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.animator.idv.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}