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openFrameworks - open file system dialog // get texture from video
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https://forum.openframeworks.cc/t/how-do-i-mix-the-alpha-channel-of-one-video-with-another/18771 | |
ofApp.h file | |
#pragma once | |
#include "ofMain.h" | |
class ofApp : public ofBaseApp{ | |
public: | |
void setup(); | |
void update(); | |
void draw(); | |
ofVideoPlayer video, maskVideo; | |
bool bVideosLoaded = false; | |
}; | |
ofApp.cpp file: | |
#include "ofApp.h" | |
//-------------------------------------------------------------- | |
void ofApp::setup(){ | |
auto r = ofSystemLoadDialog("Select video file"); // use the load dialog to find the video on your | |
//computer. if you already know the path and/or dont want to have the load dialog popping up just | |
//manually specify the file path to the video file. | |
if(r.bSuccess){ | |
bVideosLoaded = video.load(r.getPath()); | |
cout << r.getPath() << endl; // just print the video path. | |
} | |
if(bVideosLoaded){ | |
r = ofSystemLoadDialog("Select masking video file"); | |
if(r.bSuccess){ | |
bVideosLoaded = maskVideo.load(r.getPath()); | |
cout << r.getPath() << endl; | |
} | |
} | |
if(bVideosLoaded){ //Checking that both videos loaded properly | |
video.play(); | |
maskVideo.play(); | |
} | |
} | |
//-------------------------------------------------------------- | |
void ofApp::update(){ | |
if(bVideosLoaded){ | |
video.update(); | |
maskVideo.update(); | |
if(video.isFrameNew() || maskVideo.isFrameNew()){ | |
video.getTexture().setAlphaMask(maskVideo.getTexture()); // THIS IS THE MAGIC LINE! | |
} | |
} | |
} | |
//-------------------------------------------------------------- | |
void ofApp::draw(){ | |
if(bVideosLoaded){ | |
video.draw(0,0); | |
maskVideo.draw(video.getWidth(), 0); | |
} | |
} |
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