{"id":403,"date":"2021-11-09T17:27:20","date_gmt":"2021-11-09T09:27:20","guid":{"rendered":"http:\/\/acgloby.com\/?p=403"},"modified":"2021-11-09T17:27:20","modified_gmt":"2021-11-09T09:27:20","slug":"hlsl%e5%b8%b8%e7%94%a8%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.acgloby.com\/index.php\/2021\/11\/09\/hlsl%e5%b8%b8%e7%94%a8%e5%87%bd%e6%95%b0\/","title":{"rendered":"HLSL\u5e38\u7528\u51fd\u6570"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u67e5\u770b\u51fd\u6570\u56fe\u50cf\u7f51\u7ad9\uff1a<a href=\"https:\/\/graphtoy.com\/\" target=\"_blank\" rel=\"noreferrer noopener\" rel=\"nofollow\" >https:\/\/graphtoy.com\/<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u57fa\u7840\u6570\u5b66\u8fd0\u7b97<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>max\uff08a, b\uff09   \u8fd4\u56de\u8f83\u5927\u7684\u6570<\/li><li>min\uff08a, b\uff09    \u8fd4\u56de\u8f83\u5c0f\u7684\u6570<\/li><li>mul\uff08a, b\uff09    \u4e24\u53d8\u91cf\u76f8\u4e58\uff0c\u5e38\u7528\u4e8e\u77e9\u9635\u8fd0\u7b97<\/li><li>abs\uff08a\uff09   \u8fd4\u56dea\u7684\u7edd\u5bf9\u503c<\/li><li>round (x)    \u8fd4\u56de\u4e0ex\u6700\u8fd1\u7684\u6574\u6570<\/li><li>sqrt (x)    \u8fd4\u56dex\u7684\u5e73\u65b9\u6839<\/li><li>rsqrt (x)    \u8fd4\u56dex\u7684\u5e73\u65b9\u6839\u7684\u5012\u6570<\/li><li>degrees (x)    \u5f27\u5ea6\u8f6c\u89d2\u5ea6<\/li><li>redians (x)    \u89d2\u5ea6\u8f6c\u5f27\u5ea6<\/li><li>noise (x)    \u566a\u58f0<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e42\u6307\u5bf9\u51fd\u6570<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>pow (x, y)    x\u7684y\u6b21\u5e42<\/li><li>exp (x)    \u8fd4\u56dee\u4e3a\u5e95\u7684\u6307\u6570\u51fd\u6570<\/li><li>exp2 (value x)    \u8fd4\u56de\u4ee52\u4f4d\u5e95\uff0cx\u4e3a\u6307\u6570\u5e42<\/li><li>ldexp (x, exp)    \u8fd4\u56de\u4e0e2exp\u6b21\u65b9\u7684\u4e58\u79ef<\/li><li>log (x)    \u8fd4\u56de\u6307\u5b9a\u503c\u5f97\u4ee5e\u4e3a\u5e95\u6570\u7684\u5bf9\u6570<\/li><li>log10 (x)   \u6c42\u4ee510\u4e3a\u5e95\u7684\u5bf9\u6570<\/li><li>log2 (x)    \u6c42\u4ee52\u4e3a\u5e95\u7684\u5bf9\u6570<\/li><li>frexp (x , out exp)    \u5c06\u6d6e\u70b9\u6570\u5206\u89e3\u6210\u5c3e\u6570\u548c\u6307\u6570\uff0cx\u7684\u8fd4\u56de\u503c\u662f\u5c3e\u6570,exp\u53c2\u6570\u8fd4\u56de\u7684\u503c\u662f\u6307\u6570<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u89d2\u51fd\u6570\u548c\u53cc\u66f2\u7ebf\u51fd\u6570<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>sin\uff08x\uff09\u3001cos\uff08x\uff09\u3001tan\uff08x\uff09     \u4e09\u89d2\u51fd\u6570<\/li><li>asin\uff08x\uff09\u3001acos\uff08x\uff09\u3001atan\uff08x\uff09     \u53cd\u4e09\u89d2\u51fd\u6570<\/li><li>sincos\uff08x\uff0cout s\uff0cout c\uff09     \u8fd4\u56dex\u7684\u6b63\u5f26\u548c\u4f59\u5f26<\/li><li>tan\uff08y\uff0cx\uff09     \u8fd4\u56dey\/x\u7684\u6b63\u5207<\/li><li>atan2\uff08y\uff0cx\uff09     \u8fd4\u56dey\/x\u7684\u53cd\u6b63\u5207<\/li><li>sinh\uff08x\uff09     \u8fd4\u56dex\u7684\u53cc\u66f2\u6b63\u5f26\u503c<\/li><li>cosh\uff08x\uff09     \u8fd4\u56dex\u7684\u53cc\u66f2\u4f59\u5f26\u503c<\/li><li>tanh\uff08x\uff09     \u8fd4\u56dex\u7684\u53cc\u66f2\u6b63\u5f26\u503c<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u5904\u7406\u6570\u503c\u51fd\u6570<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>ceil\uff08x\uff09     \u8fd4\u56de&gt;=x\u7684\u6700\u5c0f\u6574\u6570\uff08\u5411\u4e0b\u53d6\u6574\uff09<\/li><li>floor\uff08x\uff09     \u8fd4\u56de&lt;=x\u7684\u6700\u5927\u6574\u6570\uff08\u5411\u4e0a\u53d6\u6574\uff09<\/li><li>step\uff08x\uff0cy\uff09     x&lt;=y\u8fd4\u56de1\uff0c\u5426\u5219\u8fd4\u56de0<\/li><li>saturate\uff08x\uff09     \u8fd4\u56de\u5c06x\u94b3\u5236\u5230[0,1]\u8303\u56f4\u4e4b\u95f4\u7684\u503c<\/li><li>clamp\uff08x\uff0cmin\uff0cmax\uff09     \u5c06x\u9650\u5236\u5728[min\uff0cmax]\u8303\u56f4\u7684\u503c\uff0c\u6bd4min\u5c0f\u8fd4\u56demin\uff0c\u6bd4max\u5927\u8fd4\u56demax<\/li><li>fmord\uff08x\uff0cy\uff09     \u8fd4\u56dex\u5bf9y\u53d6\u4f59\u7684\u4f59\u6570<\/li><li>frac\uff08x\uff09     \u53d6x\u7684\u5c0f\u6570\u90e8\u5206<\/li><li>modf\uff08x\uff0cout ip\uff09     \u5c06x\u5206\u4e3a\u5c0f\u6570\u548c\u6574\u6570\u90e8\u5206\uff08\u8f93\u51fa\u7684ip\u4e3a\u6574\u6570\u90e8\u5206\uff0c\u8fd4\u56de\u503c\u4e3a\u5c0f\u6570\u90e8\u5206\uff09<\/li><li>lerp\uff08x\uff0cy\uff0cs\uff09     \u6309\u7167s\u5728x\u5230y\u4e4b\u95f4\u63d2\u503c\uff0c\u8fd4\u56de<\/li><li>smoothstep\uff08min\uff0cmax\uff0cx\uff09     \u5982\u679cx\u5728[min\uff0cmax]\u8303\u56f4\u5185\uff0c\u5c31\u8fd4\u56de\u4ecb\u4e8e[0\uff0c1]\u4e4b\u95f4\u7684\u5e73\u6ed1Hermite\u63d2\u503c\uff0c\u4f7f\u7528smoothstep\u5728\u4e24\u4e2a\u503c\u521b\u5efa\u5e73\u6ed1\u8fc7\u6e21<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u6761\u4ef6\u5224\u65ad\u51fd\u6570<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>all\uff08x\uff09     \u786e\u5b9a\u6307\u5b9a\u91cf\u7684\u6240\u6709\u5206\u91cf\u662f\u5426\u5747\u4e3a\u975e\u96f6\uff0c\u5747\u975e\u96f6\u5219\u8fd4\u56detrue\uff0c\u5426\u5219\u8fd4\u56defalse<\/li><li>clip\uff08x\uff09     \u5982\u679c\u8f93\u5165\u503c\u5c0f\u4e8e\u96f6\uff0c\u5219\u4e22\u5f03\u5f53\u524d\u50cf\u7d20 \u5e38\u7528\u4e8e\u5224\u5b9a\u8303\u56f4(\u4e0d\u4ec5\u4ec5\u9488\u5bf90,\u8fd4\u56de\u503c\u4e3avoid)&nbsp;<strong>\u5e38\u7528\u4e8eAlpha\u6d4b\u8bd5\uff0c\u5982\u679c\u6bcf\u4e2a\u5206\u91cf\u4ee3\u8868\u5230\u5e73\u9762\u7684\u8ddd\u79bb\uff0c\u8fd8\u53ef\u4ee5\u7528\u6765\u6a21\u62df\u526a\u5207\u5e73\u9762<\/strong><\/li><li>sign\uff08x\uff09     \u8fd4\u56dex\u7684\u6b63\u8d1f\u6027 \u5982\u679cx\u5c0f\u4e8e\u96f6\u8fd4\u56de-1\uff0c\u5982\u679cx\u7b49\u4e8e\u96f6\u8fd4\u56de0\uff0c\u5982\u679cx\u5927\u4e8e\u96f6\u8fd4\u56de1<\/li><li>isinf\uff08x\uff09     \u5982\u679cx\u53c2\u6570\u4e3a+ INF\u6216-INF(\u65e0\u7a77+\u65e0\u7a77\u4ecd\u65e0\u7a77\uff0c0x3f3f3f3f)\uff0c\u8fd4\u56detrue\uff0c\u5426\u5219\u8fd4\u56deFalse<\/li><li>isfinite\uff08x\uff09     \u5224\u65adx\u53c2\u6570\u662f\u6709\u9650\uff0c\u5373\u6709\u754c\u7684\uff0c\u4e0eisinf(x)\u76f8\u53cd<\/li><li>isnan\uff08x\uff09     \u5982\u679cx\u53c2\u6570\u4e3aNAN(\u975e\u6570\u5b57)\uff0c\u8fd4\u56detrue\uff0c\u5426\u5219\u8fd4\u56defalse<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u5411\u91cf\u548c\u77e9\u9635\u51fd\u6570<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>length(v)     \u8fd4\u56de\u5411\u91cf\u7684\u957f\u5ea6<\/li><li>normalize(v)     \u5411\u91cf\u5f52\u4e00\u5316<\/li><li>distance(a,b)     \u8fd4\u56de\u4e24\u4e2a\u5411\u91cf\u4e4b\u95f4\u7684\u8ddd\u79bb\uff0c\u4e0d\u5e73\u884c\u7684\u4e24\u4e2a\u5411\u91cf\u5e94\u8be5\u4e3a0\uff0c\u6b64\u5904\u8868\u793a\u4e3a\u6839\u53f7\u4e0b\u5404\u5206\u91cf\u4e4b\u5dee\u7684\u5e73\u65b9\u548c<\/li><li>dot(a,b)     \u8fd4\u56dea\u548cb\u4e24\u5411\u91cf\u7684\u70b9\u79ef<\/li><li>cross(a,b)     \u8fd4\u56dea\u548cb\u4e24\u5411\u91cf\u7684\u53c9\u79ef\uff0c\u8fd4\u56de\u503c\u662f\u5411\u91cf\uff0c\u5e76\u4e14\u4e0ea,b\u90fd\u5782\u76f4<\/li><li>determinant(m)     \u8fd4\u56de\u6307\u5b9a\u6d6e\u70b9\u77e9\u9635\u7684\u6309\u884c\u5217\u5f0f\u65b9\u5f0f\u8ba1\u7b97\u7684\u503c<\/li><li>transpose(m)     \u8fd4\u56de\u77e9\u9635m\u7684\u8f6c\u7f6e\u77e9\u9635<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u5149\u7ebf\u9884\u7b97\u51fd\u6570<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>reflect(i,n)     \u4ee5i\u4e3a\u5165\u5c04\u5411\u91cfn\u4e3a\u6cd5\u7ebf\u65b9\u5411\u7684\u53cd\u5c04\u5149<\/li><li>refract(i,n,ri)     \u4ee5i\u4e3a\u5165\u5c04\u5411\u91cfn\u4e3a\u6cd5\u7ebf\u65b9\u5411,ri\u4e3a\u6298\u5c04\u7387\u7684\u6298\u5c04\u5149<\/li><li>lit(n_dot_l,n_dot_h\uff0cm)     \u8f93\u5165\u6807\u91cf(normal,light,\u534a\u89d2\u5411\u91cfh,\u955c\u9762\u53cd\u5c04\u7cfb\u6570m) \u8fd4\u56de\u5149\u7167\u5411\u91cf(\u73af\u5883\u5149\uff0c\u6f2b\u53cd\u5c04\u5149\uff0c\u955c\u9762\u9ad8\u5149\u53cd\u5c04\uff0c1)<strong>\u8be5\u8ba1\u7b97\u4f9d\u636e\u7684\u662fBlingPhong\u5149\u7167\u6a21\u578b<\/strong><\/li><li>faceforward(n,i,ng)     \u5f97\u5230\u9762\u5411\u89c6\u56fe\u65b9\u5411\u7684\u66f2\u9762\u6cd5\u5411\u91cf\u8f93\u5165\u8f93\u51fa\u4e3a\u540c\u5143\u5411\u91cf,\u8fd4\u56de-n*sign(dot(i,ng))(normal,light,normal)<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u7eb9\u7406\u67e5\u627e\u51fd\u6570<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1D\u7eb9\u7406\u67e5\u627e\u51fd\u6570<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>tex1D(s, t)     \u666e\u901a\u4e00\u7ef4\u7eb9\u7406\u67e5\u627e \u8fd4\u56de\u7eb9\u7406\u91c7\u6837\u5668s\u5728\u6807\u91cft\u4f4d\u7f6e\u7684color4<\/li><li>tex1D(s,t,ddx,ddy)     \u4f7f\u7528\u5fae\u5206\u67e5\u8be2\u4e00\u7ef4\u7eb9\u7406\uff0c t\u548cddxy\u5747\u4e3avector<\/li><li>tex1Dlod(s, t)     \u4f7f\u7528LOD\u67e5\u627e\u7eb9\u7406s\u5728t.w\u4f4d\u7f6e\u7684color4<\/li><li>tex1Dbias(s, t)     \u5c06t.w\u51b3\u5b9a\u7684\u67d0\u4e2aMIP\u5c42\u504f\u7f6e\u540e\u7684\u4e00\u7ef4\u7eb9\u7406\u67e5\u627e<\/li><li>tex1Dgrad(s,t,ddx,ddy)     \u4f7f\u7528\u5fae\u5206\u5e76\u6307\u5b9aMIP\u5c42\u7684\u4e00\u7ef4\u7eb9\u7406\u67e5\u627e<\/li><li>tex1Dproj(s, t)     \u628a\u7eb9\u7406\u5f53\u505a\u4e00\u5f20\u5e7b\u706f\u7247\u6295\u5f71\u5230\u573a\u666f\u4e2d\uff0c\u5148\u4f7f\u7528\u6295\u5f71\u7eb9\u7406\u6280\u672f\u9700\u8981\u8ba1\u7b97\u51fa\u6295\u5f71\u7eb9\u7406\u5750\u6807t(\u5750\u6807t.w\u9664\u4ee5\u900f\u89c6\u503c)\uff0c\u7136\u540e\u4f7f\u7528\u6295\u5f71\u7eb9\u7406\u5750\u6807\u8fdb\u884c\u67e5\u8be2<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2D\u7eb9\u7406\u67e5\u627e\u51fd\u6570<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>tex2D(s, t)     \u666e\u901a\u4e8c\u7ef4\u7eb9\u7406\u67e5\u627e \u8fd4\u56de\u7eb9\u7406\u91c7\u6837\u5668s\u5728vector t\u4f4d\u7f6e\u7684\u989c\u8272<\/li><li>ex2D(s,t,ddx,ddy)     \u4f7f\u7528\u5fae\u5206\u67e5\u8be2\u4e8c\u7ef4\u7eb9\u7406\uff0ct\u548cddxy\u5747\u4e3avector<\/li><li>tex2Dlod(s, t)     \u4f7f\u7528LOD\u67e5\u627e\u7eb9\u7406s\u5728t.w\u4f4d\u7f6e\u7684color4<\/li><li>tex2Dbias(s, t)     \u5c06t.w\u51b3\u5b9a\u7684\u67d0\u4e2aMIP\u5c42\u504f\u7f6e\u540e\u7684\u4e8c\u7ef4\u7eb9\u7406\u67e5\u627e<\/li><li>tex2Dgrad(s,t,ddx,ddy)     \u4f7f\u7528\u5fae\u5206\u5e76\u6307\u5b9aMIP\u5c42\u7684\u4e8c\u7ef4\u7eb9\u7406\u67e5\u627e<\/li><li>tex2Dproj(s, t)     \u628a\u7eb9\u7406\u5f53\u505a\u4e00\u5f20\u5e7b\u706f\u7247\u6295\u5f71\u5230\u573a\u666f\u4e2d\uff0c\u5148\u4f7f\u7528\u6295\u5f71\u7eb9\u7406\u6280\u672f\u9700\u8981\u8ba1\u7b97\u51fa\u6295\u5f71\u7eb9\u7406\u5750\u6807t(\u5750\u6807t.w\u9664\u4ee5\u900f\u89c6\u503c)\uff0c\u7136\u540e\u4f7f\u7528\u6295\u5f71\u7eb9\u7406\u5750\u6807\u8fdb\u884c\u67e5\u8be2<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3D\u7eb9\u7406\u67e5\u627e\u51fd\u6570<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>tex3D(s, t)      \u666e\u901a\u4e09\u7ef4\u7eb9\u7406\u67e5\u627e \u8fd4\u56de\u7eb9\u7406\u91c7\u6837\u5668s\u5728vector t\u4f4d\u7f6e\u7684\u989c\u8272<\/li><li>ex3D(s,t,ddx,ddy)      \u4f7f\u7528\u5fae\u5206\u67e5\u8be2\u4e09\u7ef4\u7eb9\u7406\uff0ct\u548cddxy\u5747\u4e3avector<\/li><li>tex3Dlod(s, t)      \u4f7f\u7528LOD\u67e5\u627e\u7eb9\u7406s\u5728t.w\u4f4d\u7f6e\u7684color4<\/li><li>tex3Dbias(s, t)      \u5c06t.w\u51b3\u5b9a\u7684\u67d0\u4e2aMIP\u5c42\u504f\u7f6e\u540e\u7684\u4e09\u7ef4\u7eb9\u7406\u67e5\u627e<\/li><li>tex3Dgrad(s,t,ddx,ddy)      \u4f7f\u7528\u5fae\u5206\u5e76\u6307\u5b9aMIP\u5c42\u7684\u4e09\u7ef4\u7eb9\u7406\u67e5\u627e<\/li><li>tex3Dproj(s, t)      \u628a\u7eb9\u7406\u5f53\u505a\u4e00\u5f20\u5e7b\u706f\u7247\u6295\u5f71\u5230\u573a\u666f\u4e2d\uff0c\u5148\u4f7f\u7528\u6295\u5f71\u7eb9\u7406\u6280\u672f\u9700\u8981\u8ba1\u7b97\u51fa\u6295\u5f71\u7eb9\u7406\u5750\u6807t(\u5750\u6807t.w\u9664\u4ee5\u900f\u89c6\u503c)\uff0c\u7136\u540e\u4f7f\u7528\u6295\u5f71\u7eb9\u7406\u5750\u6807\u8fdb\u884c\u67e5\u8be2<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u7acb\u4f53\u7eb9\u7406\u67e5\u627e<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>texCUBE(s,t)     \u8fd4\u56de\u7eb9\u7406\u91c7\u6837\u5668s\u5728vector t\u4f4d\u7f6e\u7684\u989c\u8272<\/li><li>texCUBE(s,t,ddx,ddy)     \u4f7f\u7528\u5fae\u5206\u67e5\u8be2\u7acb\u65b9\u4f53\u7ef4\u7eb9\u7406 \uff0ct\u548cddxy\u5747\u4e3avector<\/li><li>texCUBEDload(s,t)     \u4f7f\u7528LOD\u67e5\u627e\u7eb9\u7406s\u5728t.w\u4f4d\u7f6e\u7684color4<\/li><li>texCUBEbias(s,t)     \u5c06t.w\u51b3\u5b9a\u7684\u67d0\u4e2aMIP\u5c42\u504f\u7f6e\u540e\u7684\u7acb\u65b9\u4f53\u7eb9\u7406\u67e5\u627e<\/li><li>texCUBEgrad(s,t,ddx,ddy)     \u4f7f\u7528\u5fae\u5206\u5e76\u6307\u5b9aMIP\u5c42\u7684\u7acb\u65b9\u4f53\u7eb9\u7406\u67e5\u627e<\/li><li>texCUBEproj(s,t)     \u4f7f\u7528\u6295\u5f71\u65b9\u5f0f\u7684\u7acb\u65b9\u4f53\u7eb9\u7406\u67e5\u627e<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u504f\u5bfc\u51fd\u6570ddx\u548cddy<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ddx(vector3)\u3001ddy(vector3)     ddx \u548c ddy \u7528\u4e8e\u6c42\u53d6\u76f8\u90bb\u50cf\u7d20\u95f4\u67d0\u5c5e\u6027\u7684\u5dee\u503c<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"http:\/\/acgloby.com\/wp-content\/uploads\/2021\/11\/ddx.png\" alt=\"\" class=\"wp-image-421\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Core.hlsl<\/h3>\n\n\n\n<figure class=\"wp-block-table aligncenter is-style-regular\"><table><thead><tr><th>\u540d\u79f0<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>GetVertexPositionInputs(float3 positionOS)<\/td><td>\u83b7\u53d6\u8f93\u5165\u9876\u70b9\u5750\u6807\u4fe1\u606f<\/td><\/tr><tr><td>GetVertexNormalInputs(float3 normalOS)<\/td><td>\u83b7\u53d6\u8f93\u5165\u9876\u70b9\u6cd5\u7ebf\u4fe1\u606f<\/td><\/tr><tr><td>GetVertexNormalInputs(float3 normalOS, float4 tangentOS)<\/td><td>\u83b7\u53d6\u8f93\u5165\u9876\u70b9\u6cd5\u7ebf\u4fe1\u606f\uff08\u91cd\u8f7d\uff09<\/td><\/tr><tr><td>GetScaledScreenParams()<\/td><td>\u83b7\u53d6\u5c4f\u5e55\u7f29\u653e\u53c2\u6570\u4fe1\u606f<\/td><\/tr><tr><td>NormalizeNormalPerVertex(real3 normalWS)<\/td><td>\u9010\u9876\u70b9\u6cd5\u7ebf\u6b63\u4ea4<\/td><\/tr><tr><td>NormalizeNormalPerPixel(real3 normalWS)<\/td><td>\u9010\u50cf\u7d20\u6cd5\u7ebf\u6b63\u4ea4<\/td><\/tr><tr><td>ComputeScreenPos(float4 positionCS)<\/td><td>\u8ba1\u7b97\u5c4f\u5e55\u5750\u6807\u4fe1\u606f<\/td><\/tr><tr><td>\uff08real\uff09ComputeFogFactor(float z)<\/td><td>\u8ba1\u7b97\u96fe\u53c2\u6570<\/td><\/tr><tr><td>\uff08real\uff09ComputeFogIntensity(real fogFactor)<\/td><td>\u8ba1\u7b97\u96fe\u5f3a\u5ea6<\/td><\/tr><tr><td>\uff08half3\uff09MixFogColor(real3 fragColor, real3 fogColor, real fogFactor)<\/td><td>\u6df7\u5408\u96fe\u989c\u8272<\/td><\/tr><tr><td>\uff08half3\uff09MixFog(real3 fragColor, real fogFactor)<\/td><td>\u6df7\u5408\u96fe<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Lighting.hlsl<\/h3>\n\n\n\n<figure class=\"wp-block-table aligncenter\"><table><thead><tr><th>\u540d\u79f0<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>DistanceAttenuation(float distanceSqr, half2 distanceAttenuation)<\/td><td>\u8ddd\u79bb\u8870\u51cf<\/td><\/tr><tr><td>AngleAttenuation(half3 spotDirection, half3 lightDirection, half2 spotAttenuation)<\/td><td>\u89d2\u5ea6\u8870\u51cf<\/td><\/tr><tr><td>GetMainLight()\/GetMainLight(float4 shadowCoord)<\/td><td>\u83b7\u53d6\u4e3b\u5149\u6e90<\/td><\/tr><tr><td>GetPerObjectLightIndex(int index)<\/td><td>\u83b7\u53d6\u6bcf\u4e2a\u5bf9\u8c61\u706f\u5149Index<\/td><\/tr><tr><td>GetAdditionalLightsCount()<\/td><td>\u83b7\u53d6\u989d\u5916\u706f\u5149\u6570\u91cf<\/td><\/tr><tr><td>ReflectivitySpecular(half3 specular)<\/td><td>\u9ad8\u5149\u53cd\u5c04\u7387<\/td><\/tr><tr><td>OneMinusReflectivityMetallic(half metallic)<\/td><td>OneMinus\u91d1\u5c5e\u53cd\u5c04\u7387<\/td><\/tr><tr><td>InitializeBRDFData(half3 albedo, half metallic, half3 specular, half smoothness, half alpha, out BRDFData outBRDFData)<\/td><td>\u521d\u59cb\u5316BRDF<\/td><\/tr><tr><td>EnvironmentBRDF(BRDFData brdfData, half3 indirectDiffuse, half3 indirectSpecular, half fresnelTerm)<\/td><td>\u73af\u5883BRDF<\/td><\/tr><tr><td>DirectBDRF(BRDFData brdfData, half3 normalWS, half3 lightDirectionWS, half3 viewDirectionWS)<\/td><td>BRDF<\/td><\/tr><tr><td>SampleLightmap(float2 lightmapUV, half3 normalWS)<\/td><td>\u5149\u7167\u8d34\u56fe<\/td><\/tr><tr><td>GlossyEnvironmentReflection(half3 reflectVector, half perceptualRoughness, half occlusion)<\/td><td>\u73af\u5883\u5149\u6cfd\u53cd\u5c04<\/td><\/tr><tr><td>GlobalIllumination(BRDFData brdfData, half3 bakedGI, half occlusion, half3 normalWS, half3 viewDirectionWS)<\/td><td>\u5168\u5c40\u5149\u7167<\/td><\/tr><tr><td>MixRealtimeAndBakedGI(inout Light light, half3 normalWS, inout half3 bakedGI, half4 shadowMask)<\/td><td>\u5b9e\u65f6\u70d8\u57f9\u6df7\u5408<\/td><\/tr><tr><td>LightingLambert(half3 lightColor, half3 lightDir, half3 normal)<\/td><td>\u5170\u4f2f\u7279\u6a21\u578b<\/td><\/tr><tr><td>LightingSpecular(half3 lightColor, half3 lightDir, half3 normal, half3 viewDir, half4 specular, half smoothness)<\/td><td>\u9ad8\u5149<\/td><\/tr><tr><td>LightingPhysicallyBased(BRDFData brdfData, half3 lightColor, half3 lightDirectionWS, half lightAttenuation, half3 normalWS, half3 viewDirectionWS)\/LightingPhysicallyBased(BRDFData brdfData, Light light, half3 normalWS, half3 viewDirectionWS)<\/td><td>\u57fa\u4e8e\u7269\u7406\u7684\u5149\u7167\u6a21\u578b<\/td><\/tr><tr><td>VertexLighting(float3 positionWS, half3 normalWS)<\/td><td>\u9876\u70b9\u5149\u7167\u989c\u8272<\/td><\/tr><tr><td>LightweightFragmentPBR(InputData inputData, half3 albedo, half metallic, half3 specular,half smoothness, half occlusion, half3 emission, half alpha)<\/td><td>\u8f7b\u91cf\u7ea7\u7247\u5143PBR<\/td><\/tr><tr><td>LightweightFragmentBlinnPhong(InputData inputData, half3 diffuse, half4 specularGloss, half smoothness, half3 emission, half alpha)<\/td><td>\u8f7b\u91cf\u7ea7\u7247\u5143\u5e03\u6797\u00b7\u51af<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Shadows.hlsl<\/h3>\n\n\n\n<figure class=\"wp-block-table aligncenter\"><table><thead><tr><th>\u540d\u79f0<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>GetMainLightShadowStrength()<\/td><td>\u83b7\u53d6\u4e3b\u5149\u6e90\u9634\u5f71\u5f3a\u5ea6<\/td><\/tr><tr><td>GetAdditionalLightShadowStrenth(int lightIndex)<\/td><td>\u83b7\u53d6\u989d\u5916\u5149\u6e90\u9634\u5f71\u5f3a\u5ea6<\/td><\/tr><tr><td>SampleScreenSpaceShadowmap(float4 shadowCoord)<\/td><td>\u5c4f\u5e55\u7a7a\u95f4\u9634\u5f71\u8d34\u56fe<\/td><\/tr><tr><td>SampleShadowmap(float4 shadowCoord, TEXTURE2D_SHADOW_PARAM(ShadowMap, sampler_ShadowMap), ShadowSamplingData samplingData, half shadowStrength, bool isPerspectiveProjection = true)<\/td><td>\u9634\u5f71\u8d34\u56fe<\/td><\/tr><tr><td>TransformWorldToShadowCoord(float3 positionWS)<\/td><td>\u628a\u9876\u70b9\u7684\u4e16\u754c\u5750\u6807\u8f6c\u6362\u5230\u9634\u5f71\u5750\u6807<\/td><\/tr><tr><td>MainLightRealtimeShadow(float4 shadowCoord)<\/td><td>\u4e3b\u5149\u6e90\u5b9e\u65f6\u9634\u5f71<\/td><\/tr><tr><td>AdditionalLightRealtimeShadow(int lightIndex, float3 positionWS)<\/td><td>\u989d\u5916\u5149\u6e90\u5b9e\u65f6\u9634\u5f71<\/td><\/tr><tr><td>GetShadowCoord(VertexPositionInputs vertexInput)<\/td><td>\u83b7\u53d6\u9634\u5f71\u5750\u6807\u4fe1\u606f<\/td><\/tr><tr><td>ApplyShadowBias(float3 positionWS, float3 normalWS, float3 lightDirection)<\/td><td>\u5e94\u7528\u9634\u5f71\u504f\u79fb<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">SpaceTransforms.hlsl<\/h3>\n\n\n\n<figure class=\"wp-block-table aligncenter\"><table><thead><tr><th>\u540d\u79f0<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>TransformObjectToWorld(float3 positionOS)<\/td><td>\u5f53\u524d\u6a21\u578b\u7a7a\u95f4\u8f6c\u4e16\u754c\u7a7a\u95f4\u77e9\u9635\uff0c\u901a\u5e38\u7528\u4e8e\u628a\u9876\u70b9\/\u65b9\u5411\u77e2\u91cf\u4ece\u6a21\u578b\u7a7a\u95f4\u8f6c\u5230\u4e16\u754c\u7a7a\u95f4<\/td><\/tr><tr><td>TransformWorldToObject(float3 positionWS)<\/td><td>\u5f53\u524d\u4e16\u754c\u7a7a\u95f4\u8f6c\u6a21\u578b\u7a7a\u95f4\u77e9\u9635\uff0c\u901a\u5e38\u7528\u4e8e\u628a\u9876\u70b9\/\u65b9\u5411\u77e2\u91cf\u4ece\u4e16\u754c\u7a7a\u95f4\u8f6c\u5230\u6a21\u578b\u7a7a\u95f4<\/td><\/tr><tr><td>TransformWorldToView(float3 positionWS)<\/td><td>\u5f53\u524d\u4e16\u754c\u7a7a\u95f4\u8f6c\u76f8\u673a\u7a7a\u95f4\u77e9\u9635\uff0c\u901a\u5e38\u7528\u4e8e\u628a\u9876\u70b9\/\u65b9\u5411\u77e2\u91cf\u4ece\u4e16\u754c\u7a7a\u95f4\u8f6c\u5230\u76f8\u673a\u7a7a\u95f4<\/td><\/tr><tr><td>TransformObjectToHClip(float3 positionOS)<\/td><td>\u5f53\u524d\u6a21\u578b\u7a7a\u95f4\u8f6c\u88c1\u526a\u7a7a\u95f4\u77e9\u9635\uff0c\u901a\u5e38\u7528\u4e8e\u628a\u9876\u70b9\/\u65b9\u5411\u77e2\u91cf\u4ece\u6a21\u578b\u7a7a\u95f4\u8f6c\u5230\u88c1\u526a\u7a7a\u95f4<\/td><\/tr><tr><td>TransformWorldToHClip(float3 positionWS)<\/td><td>\u5f53\u524d\u4e16\u754c\u7a7a\u95f4\u8f6c\u88c1\u526a\u7a7a\u95f4\u77e9\u9635\uff0c\u901a\u5e38\u7528\u4e8e\u628a\u9876\u70b9\/\u65b9\u5411\u77e2\u91cf\u4ece\u4e16\u754c\u7a7a\u95f4\u8f6c\u5230\u88c1\u526a\u7a7a\u95f4<\/td><\/tr><tr><td>TransformWViewToHClip(float3 positionVS)<\/td><td>\u5f53\u524d\u76f8\u673a\u7a7a\u95f4\u8f6c\u88c1\u526a\u7a7a\u95f4\u77e9\u9635\uff0c\u901a\u5e38\u7528\u4e8e\u628a\u9876\u70b9\/\u65b9\u5411\u77e2\u91cf\u4ece\u76f8\u673a\u7a7a\u95f4\u8f6c\u5230\u88c1\u526a\u7a7a\u95f4<\/td><\/tr><tr><td>TransformObjectToWorldDir(real3 dirOS)<\/td><td>\u628a\u65b9\u5411\u77e2\u91cf\u4ece\u6a21\u578b\u7a7a\u95f4\u8f6c\u6362\u5230\u4e16\u754c\u7a7a\u95f4\u4e2d<\/td><\/tr><tr><td>TransformWorldToObjectDir(real3 dirWS)<\/td><td>\u628a\u65b9\u5411\u77e2\u91cf\u4ece\u4e16\u754c\u7a7a\u95f4\u8f6c\u6362\u5230\u6a21\u578b\u7a7a\u95f4\u4e2d<\/td><\/tr><tr><td>TransformWorldToViewDir(real3 dirWS)<\/td><td>\u628a\u65b9\u5411\u77e2\u91cf\u4ece\u4e16\u754c\u7a7a\u95f4\u8f6c\u6362\u5230\u76f8\u673a\u7a7a\u95f4\u4e2d<\/td><\/tr><tr><td>TransformWorldToHClipDir(real3 directionWS)<\/td><td>\u628a\u65b9\u5411\u77e2\u91cf\u4ece\u4e16\u754c\u7a7a\u95f4\u8f6c\u6362\u5230\u88c1\u526a\u7a7a\u95f4\u4e2d<\/td><\/tr><tr><td>TransformObjectToWorldNormal(float3 normalOS)<\/td><td>\u628a\u6cd5\u7ebf\u4ece\u6a21\u578b\u7a7a\u95f4\u8f6c\u6362\u5230\u4e16\u754c\u7a7a\u95f4\u4e2d<\/td><\/tr><tr><td>CreateTangentToWorld(real3 normal, real3 tangent, real flipSign)<\/td><td>\u521b\u5efa\u4e00\u4e2a\u5207\u7ebf\u7a7a\u95f4\u8f6c\u4e3a\u4e16\u754c\u7a7a\u95f4\u76843x3\u77e9\u9635<\/td><\/tr><tr><td>TransformTangentToWorld(real3 dirTS, real3x3 tangentToWorld)<\/td><td>\u5f53\u524d\u5207\u7ebf\u7a7a\u95f4\u8f6c\u4e16\u754c\u7a7a\u95f4\u77e9\u9635\uff0c\u901a\u5e38\u7528\u4e8e\u628a\u9876\u70b9\/\u65b9\u5411\u77e2\u91cf\u4ece\u5207\u7ebf\u7a7a\u95f4\u8f6c\u5230\u4e16\u754c\u7a7a\u95f4<\/td><\/tr><tr><td>TransformWorldToTangent(real3 dirWS, real3x3 tangentToWorld)<\/td><td>\u5f53\u524d\u4e16\u754c\u7a7a\u95f4\u8f6c\u5207\u7ebf\u7a7a\u95f4\u77e9\u9635\uff0c\u901a\u5e38\u7528\u4e8e\u628a\u9876\u70b9\/\u65b9\u5411\u77e2\u91cf\u4ece\u4e16\u754c\u7a7a\u95f4\u8f6c\u5230\u5207\u7ebf\u7a7a\u95f4<\/td><\/tr><tr><td>TransformTangentToObject(real3 dirTS, real3x3 tangentToWorld)<\/td><td>\u5f53\u524d\u5207\u7ebf\u7a7a\u95f4\u8f6c\u6a21\u578b\u7a7a\u95f4\u77e9\u9635\uff0c\u901a\u5e38\u7528\u4e8e\u628a\u9876\u70b9\/\u65b9\u5411\u77e2\u91cf\u4ece\u5207\u7ebf\u7a7a\u95f4\u8f6c\u5230\u6a21\u578b\u7a7a\u95f4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u67e5\u770b\u51fd\u6570\u56fe\u50cf\u7f51\u7ad9\uff1ahttps:\/\/graphtoy.com\/ \u57fa\u7840\u6570\u5b66\u8fd0\u7b97 max\uff08a, b\uff09 \u8fd4\u56de\u8f83\u5927\u7684\u6570 min\uff08a, b\uff09  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