{"id":1418,"date":"2015-10-29T14:30:06","date_gmt":"2015-10-29T06:30:06","guid":{"rendered":"http:\/\/www.clonefactor.com\/wordpress\/?p=1418"},"modified":"2015-10-29T14:30:06","modified_gmt":"2015-10-29T06:30:06","slug":"lightmap-%e8%a3%bd%e4%bd%9c%e7%b6%93%e9%a9%97-2","status":"publish","type":"post","link":"https:\/\/www.clonefactor.com\/wordpress\/program\/unity3d\/1418\/","title":{"rendered":"Lightmap \u88fd\u4f5c\u7d93\u9a57 #2"},"content":{"rendered":"

\u88fd\u4f5c Lightmap \u5728\u624b\u904a\u6216\u8cc7\u6e90\u7dca\u5f35\u7684\u9805\u76ee\u4e2d
\n\u5728\u8f38\u51fa Lightmap \u6642\u6700\u9700\u8981\u63a7\u5236\u7684\u9664\u4e86\u6548\u679c\u4e4b\u5916\u6700\u7dca\u8981\u7684\u5c31\u662f Draw call \u53ca lightmap \u7684\u7e3d\u7d20\u6750\u91cf.<\/p>\n

Draw call<\/h2>\n

Draw call \u5373\u662f Unity 5+ \u88e1\u7684 Total batching
\n\u5176\u6578\u5b57\u4ee3\u8868\u7684\u662f GPU \u7e3d\u7e6a\u5716\u6b21\u6578. \u6578\u503c\u8d8a\u5927\u4ee3\u8868\u7e6a\u756b\u6b21\u6578\u589e\u591a(\u6162).
\n\u4e00\u822c\u4f86\u8aaa Lightmap \u7684\u6578\u91cf\u8d8a\u591a, draw call \u6703\u96a8\u8457\u7269\u4ef6 Material \u8cbc\u5716\u53ca\u7269\u4ef6\u672c\u8eab\u80fd\u5426 lightmap static \u800c\u589e\u52a0.
\n\u6240\u4ee5\u76e1\u91cf\u63a7\u5236\u6bcf\u500b\u7269\u4ef6\u4e00\u500b Material \u6703\u6bd4\u8f03\u5bb9\u6613\u7b97 Draw call , \u53ef\u662f\u9019\u9ebc\u4e00\u4f86\u5c31\u5f88\u96e3\u63a7\u5236, texture atlas \u53ca Static mesh \u4e86. (\u6240\u4ee5\u9019\u65b9\u9762\u8981\u81ea\u5df1\u5e73\u8861\u4e00\u4e0b,\u6df7\u8457\u7528\u7f77)<\/p>\n

\u8a3b: \u5982\u679c\u540c\u4e00\u500b Mesh \u7269\u4ef6\u9644\u8457 2 \u500b\u6216\u66f4\u591a\u7684 Material \u4e5f\u6703\u5f71\u97ff Draw call \u6578, \u5927\u65bc\u7b49\u65bc 2 \u5c64\u7684 Material \u4ee4\u5176\u4e0d\u80fd\u8207\u5176\u4ed6\u90e8\u5206\u76f8\u540c\u7684 Material \u540c\u6642\u9032\u884c\u7e6a\u756b, \u9019\u90e8\u4efd\u6703\u56e0\u70ba Lightmap \u7684\u52a0\u5165\u4ee4 Draw call \u6578\u500d\u589e, \u4f46\u9019\u554f\u984c\u4e26\u4e0d\u80fd\u7531 Lightmap \u89e3\u6c7a. (\u5728 Mesh \u53ca Texture atlas \u4e0a\u8457\u624b\u7f77)<\/p>\n

Lightmap atlas<\/h2>\n

\u8f38\u51fa\u7684\u5716\u7247\u6578\u7406\u6240\u7576\u7136\u7684\u662f\u7d20\u6750\u672c\u8eab\u4f54\u7684\u6a94\u6848\u5927\u5c0f.
\n\u8a02\u660e\u9670\u5f71\u89e3\u50cf\u5ea6.
\nLighting > Scene > Baked GI > Baked Resolution
\n\u9700\u7559\u610f\u7684\u662f\u5728\u540c\u4e00\u9801\u7684 Atlas \u5927\u5c0f
\n\u5728 Lighting > Scene > General GI > Atlas Size \u80fd\u4ecb\u5b9a\u6bcf\u500b Atlas \u7684\u89e3\u50cf\u5ea6.
\n\u4e00\u500b Atlas \u88e1\u80fd\u653e\u591a\u5c11\u5f35\u4e0d\u540c\u7684 Lightmap \u8981\u7531 Developer \u81ea\u884c\u5224\u65b7.<\/p>\n

\"lightmap_atlas\"<\/a><\/p>\n

Scale In Lightmap<\/h2>\n

\u6bcf\u500b Mesh \u7269\u4ef6\u4e5f\u53ef\u4ee5\u81ea\u884c\u8abf\u7bc0 lightmap \u7d0b\u7406\u7684\u8cbc\u5716\u5927\u5c0f.
\n\u5982\u679c\u6709\u4e9b\u4e0d\u592a\u91cd\u8981\u7684\u7269\u54c1(\u81ea\u884c\u5224\u65b7)\u5728 lightmap \u4e2d\u4f54\u7684\u5730\u65b9\u592a\u5927\u5c0e\u81f4 atlas \u6578\u91cf\u589e\u591a\u6216\u8005\u53ea\u5dee\u4e00\u9ede\u9ede\u5c31\u80fd\u628a\u6240\u6709 lightmap \u653e\u5230\u540c\u4e00\u5f35\u4e0a\u7684\u8a71,\u8abf\u9019\u500b\u80fd\u5e6b\u5f97\u4e0a\u5fd9.<\/p>\n

\"lightmap_scale\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u88fd\u4f5c Lightmap \u5728\u624b\u904a\u6216\u8cc7\u6e90\u7dca\u5f35\u7684\u9805\u76ee\u4e2d \u5728\u8f38\u51fa Lightmap \u6642\u6700\u9700\u8981\u63a7\u5236\u7684\u9664\u4e86\u6548\u679c\u4e4b …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-1418","post","type-post","status-publish","format-standard","hentry","category-unity3d"],"_links":{"self":[{"href":"https:\/\/www.clonefactor.com\/wordpress\/wp-json\/wp\/v2\/posts\/1418","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.clonefactor.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.clonefactor.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.clonefactor.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.clonefactor.com\/wordpress\/wp-json\/wp\/v2\/comments?post=1418"}],"version-history":[{"count":0,"href":"https:\/\/www.clonefactor.com\/wordpress\/wp-json\/wp\/v2\/posts\/1418\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.clonefactor.com\/wordpress\/wp-json\/wp\/v2\/media?parent=1418"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.clonefactor.com\/wordpress\/wp-json\/wp\/v2\/categories?post=1418"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.clonefactor.com\/wordpress\/wp-json\/wp\/v2\/tags?post=1418"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}