{"id":2410,"date":"2016-03-16T03:27:59","date_gmt":"2016-03-15T18:27:59","guid":{"rendered":"http:\/\/mirror.boy.jp\/?p=2410"},"modified":"2016-03-16T03:30:46","modified_gmt":"2016-03-15T18:30:46","slug":"ofimage%e7%94%bb%e5%83%8f%e3%82%92ofpath%e6%8f%8f%e7%94%bb%e3%81%a7%e3%83%9e%e3%82%b9%e3%82%af%e3%81%99%e3%82%8b-openframeworks","status":"publish","type":"post","link":"https:\/\/mirror.boy.jp\/?p=2410","title":{"rendered":"ofImage\u753b\u50cf\u3092ofPath\u63cf\u753b\u3067\u30de\u30b9\u30af\u3059\u308b #openFrameworks"},"content":{"rendered":"

ofImage\u3078\u306e\u30de\u30b9\u30af\u51e6\u7406<\/h1>\n

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

0.9.0~ \u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3068\u3044\u3046ofImage\u3078\u306e\u30de\u30b9\u30af\u51e6\u7406 setAlphaMask \uff08\u53c2\u8003\uff1a\u753b\u50cf\u3092\u5f62\u3092\u6307\u5b9a\u3057\u3066\u30de\u30b9\u30af\u3059\u308b<\/a>\uff09\u3092\u8a66\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n

\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9<\/h1>\n
\n[cpp]<\/p>\n
ofPath path;
\nofImage img;
\nofFbo fbo;<\/p>\n
void ofApp::setup(){<\/p>\n
ofHideCursor();<\/p>\n
\/\/set path
\nfor(auto i = 0 ; i < 100 ; i++){
\nofSetColor(255);
\nconst auto pos = ofPoint(ofRandom(float(ofGetWidth())),float(ofRandom(ofGetHeight())));
\npath.lineTo(pos);
\n}<\/p>\n
\/\/set fbo
\nfbo.allocate(ofGetWidth(),ofGetHeight(),GL_RGBA \/*GL_LUMINANCE*\/);
\nfbo.begin();
\npath.draw();
\nfbo.end();<\/p>\n
\/\/set img
\n\/\/data\u30d5\u30a9\u30eb\u30c0\u306b\u597d\u304d\u306a\u753b\u50cf\u3092\u5165\u308c\u3066\u304f\u3060\u3055\u3044\u3002
\nif(!img.load("mirrorboy.jpg")){
\nofLog() << "image is not loaded." ;
\n};<\/p>\n
img.setAnchorPercent(0.5,0.5);
\nimg.getTexture().setAlphaMask(fbo.getTexture());
\n}<\/p>\n
void ofApp::draw(){<\/p>\n
 ofBackgroundGradient(ofColor::yellow,ofColor::gray);<\/p>\n
 ofSetColor(255);
\n img.draw(ofGetWidth()\/2,ofGetHeight()\/2);<\/p>\n
}
\n[\/cpp]<\/p>\n","protected":false},"excerpt":{"rendered":"
ofImage\u3078\u306e\u30de\u30b9\u30af\u51e6\u7406 0.9.0~ \u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3068\u3044\u3046ofImage\u3078\u306e\u30de\u30b9\u30af\u51e6\u7406 setAlphaMask \uff08\u53c2\u8003\uff1a\u753b\u50cf\u3092\u5f62\u3092\u6307\u5b9a\u3057\u3066\u30de\u30b9\u30af\u3059\u308b\uff09\u3092\u8a66\u3057\u3066\u307f\u307e\u3057\u305f\u3002 \u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9 [cpp] ofPat … \u7d9a\u304d\u3092\u8aad\u3080 ofImage\u753b\u50cf\u3092ofPath\u63cf\u753b\u3067\u30de\u30b9\u30af\u3059\u308b #openFrameworks<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,112,111,104],"tags":[],"_links":{"self":[{"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=\/wp\/v2\/posts\/2410"}],"collection":[{"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2410"}],"version-history":[{"count":5,"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=\/wp\/v2\/posts\/2410\/revisions"}],"predecessor-version":[{"id":2416,"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=\/wp\/v2\/posts\/2410\/revisions\/2416"}],"wp:attachment":[{"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2410"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2410"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mirror.boy.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}