{"id":1519,"date":"2021-11-30T18:14:06","date_gmt":"2021-11-30T10:14:06","guid":{"rendered":"http:\/\/blog.fengyu-poi.cn:57650\/?p=1519"},"modified":"2021-12-03T10:43:39","modified_gmt":"2021-12-03T02:43:39","slug":"waveform%e7%94%9f%e6%88%90%e7%ae%97%e6%b3%95","status":"publish","type":"post","link":"http:\/\/www.fengyu-poi.cn\/?p=1519","title":{"rendered":"\u89c6\u9891\u793a\u6ce2\u5668 WaveForm\u751f\u6210\u7b97\u6cd5"},"content":{"rendered":"<h2 class=\"wp-block-heading\">\u8f93\u5165\u91cf<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>int p_Width, \/\/\u56fe\u50cf\u7684\u5bbd\u5ea6\nint p_Height, \/\/\u56fe\u50cf\u7684\u9ad8\u5ea6\nint p_X, \/\/\u5f53\u524d\u50cf\u7d20\u7684X\u5750\u6807\nint p_Y, \/\/\u5f53\u524d\u50cf\u7d20\u7684Y\u5750\u6807\n\/\/\u5f53\u524d\u8f93\u5165\u5c42\u7684\u4e09\u901a\u9053\u503c\n__TEXTURE__ p_TexR,\n__TEXTURE__ p_TexG,\n__TEXTURE__ p_TexB<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u521d\u59cb\u5316<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>\tfloat colR = 0.0f;\n\tfloat colG = 0.0f;\n\tfloat colB = 0.0f;\n\tfloat lumR = 0.0f;\n\tfloat lumG = 0.0f;\n\tfloat lumB = 0.0f;<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">STEP1 - \u8ba1\u7b97\u5f53\u524d\u8f93\u51fa\u5bf9\u5e94\u5750\u6807\u6240\u5bf9\u5e94\u7684\u4eae\u5ea6<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>float y = p_Y \/ (p_Height - 1.0f);<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">STEP2 -  \u6c42\u8be5\u5782\u76f4\u626b\u63cf\u7ebf\u4e0a\u7b26\u5408\u6761\u4ef6\u7684\u50cf\u7d20\u6570\u91cf<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>lumR &gt; 0.005f &amp;&amp; lumR  (1.0f - y) * 1.005f &amp;&amp; lumR + 0.005f &gt; (1.0f - y) * 1.005f ? colR += 0.02f : 0.0f; \/\/\u5bb9\u5dee0.005f<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">STEP3 - \u5b8c\u6574\u626b\u63cf\u7ebf\u6c42\u89e3<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>for (int i = 0; i  p_Height; i+=1){\n\n\t\tlumR = _tex2D(p_TexR, p_X, i);\u53d6\u5f97\u5355\u5782\u76f4\u626b\u63cf\u7ebf\u4e0a\u6bcf\u4e00\u4e2a\u50cf\u7d20\u7684\u503c\n\n\t\tlumR &gt; 0.005f &amp;&amp; lumR  (1.0f - y) * 1.005f &amp;&amp; lumR + 0.005f &gt; (1.0f - y) * 1.005f ? colR += 0.02f : 0.0f;\n\t}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">STEP4 - \u6c42\u89e3\u5176\u4f59\u901a\u9053<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>for (int i = 0; i  p_Height; i+=1){\n\n\t\tlumG = _tex2D(p_TexG, p_X, i);\n\n\t\tlumG &gt; 0.005f &amp;&amp; lumG  (1.0f - y) * 1.005f &amp;&amp; lumG + 0.005f &gt; (1.0f - y) * 1.005f ? colG += 0.02f : 0.0f;\n\t}\n\n\tfor (int i = 0; i  p_Height; i+=1){\n\n\t\tlumB = _tex2D(p_TexB, p_X, i);\n\n\t\tlumB &gt; 0.005f &amp;&amp; lumB  (1.0f - y) * 1.005f &amp;&amp; lumB + 0.005f &gt; (1.0f - y) * 1.005f ? colB += 0.02f : 0.0f;\n\t}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">STEP5 - \u8fd4\u56de\u8be5\u70b9\u7684\u8f93\u51fa\u50cf\u7d20\u7684\u503c<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>float r = colR;\nfloat g = colG;\nfloat b = colB;\n\nreturn make_float3(r, g, b);<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u6548\u679c\u56fe<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><noscript><img decoding=\"async\" width=\"1024\" height=\"536\" src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/waveform_i-1024x536.png\" alt class=\"wp-image-1525\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_i-1024x536.png 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_i-300x157.png 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_i-768x402.png 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_i-1536x804.png 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_i-400x209.png 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_i-940x492.png 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_i.png 2006w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/noscript><img decoding=\"async\" width=\"1024\" height=\"536\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20536%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-1525 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20536%22%3E%3C%2Fsvg%3E 1024w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_i-1024x536.png 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_i-300x157.png 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_i-768x402.png 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_i-1536x804.png 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_i-400x209.png 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_i-940x492.png 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_i.png 2006w\" data-src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/waveform_i-1024x536.png\"><figcaption>INPUT<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><noscript><img decoding=\"async\" width=\"1024\" height=\"540\" src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/waveform_o-1024x540.png\" alt class=\"wp-image-1526\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_o-1024x540.png 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_o-300x158.png 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_o-768x405.png 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_o-1536x810.png 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_o-400x211.png 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_o-940x496.png 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_o.png 1990w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/noscript><img decoding=\"async\" width=\"1024\" height=\"540\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20540%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-1526 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20540%22%3E%3C%2Fsvg%3E 1024w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_o-1024x540.png 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_o-300x158.png 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_o-768x405.png 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_o-1536x810.png 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_o-400x211.png 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_o-940x496.png 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/waveform_o.png 1990w\" data-src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/waveform_o-1024x540.png\"><figcaption>OUTPUT<\/figcaption><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8f93\u5165\u91cf \u521d\u59cb\u5316 STEP1 &#8211; \u8ba1\u7b97\u5f53\u524d\u8f93\u51fa\u5bf9\u5e94\u5750\u6807\u6240\u5bf9\u5e94\u7684\u4eae\u5ea6 STEP2 &#8211; \u6c42\u8be5\u5782\u76f4\u626b\u63cf\u7ebf\u4e0a\u7b26\u5408\u6761\u4ef6\u7684\u50cf&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":1526,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_s2mail":"yes","footnotes":""},"categories":[14,15],"tags":[],"class_list":["post-1519","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dimg","category-program"],"_links":{"self":[{"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/posts\/1519","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1519"}],"version-history":[{"count":7,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/posts\/1519\/revisions"}],"predecessor-version":[{"id":1528,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/posts\/1519\/revisions\/1528"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/media\/1526"}],"wp:attachment":[{"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1519"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1519"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}