testApp.cpp

#include "testApp.h"

//--------------------------------------------------------------
void testApp::setup(){
    
    
    dim = 128;
    
    tex.allocate( dim, dim, GL_RGB32F );
    
    int arraySize = dim*dim*3;
    pixels = new float[arraySize];
    for ( int i=0; i<arraySize; i++ ) {
        pixels[i] = ofRandom( 1.0 );
    }
    
    tex.loadData( pixels, dim, dim, GL_RGB32F );
}

//--------------------------------------------------------------
void testApp::update(){
    int arraySize = dim*dim*3;
    for ( int i=0; i<arraySize; i++ ) {
        pixels[i] = ofRandom( 1.0 );
    }
    tex.loadData( pixels, dim, dim, GL_RGB32F );
}

//--------------------------------------------------------------
void testApp::draw(){
    tex.draw( 0, 0 );
}

//--------------------------------------------------------------
void testApp::keyPressed(int key){

}

//--------------------------------------------------------------
void testApp::keyReleased(int key){

}

//--------------------------------------------------------------
void testApp::mouseMoved(int x, int y ){

}

//--------------------------------------------------------------
void testApp::mouseDragged(int x, int y, int button){

}

//--------------------------------------------------------------
void testApp::mousePressed(int x, int y, int button){

}

//--------------------------------------------------------------
void testApp::mouseReleased(int x, int y, int button){

}

//--------------------------------------------------------------
void testApp::windowResized(int w, int h){

}

//--------------------------------------------------------------
void testApp::gotMessage(ofMessage msg){

}

//--------------------------------------------------------------
void testApp::dragEvent(ofDragInfo dragInfo){ 

}

testApp.h

#pragma once

#include "ofMain.h"

class testApp : public ofBaseApp{

  public:
    
        ofTexture tex;
        float * pixels;
        int dim;
    
		void setup();
		void update();
		void draw();

		void keyPressed(int key);
		void keyReleased(int key);
		void mouseMoved(int x, int y );
		void mouseDragged(int x, int y, int button);
		void mousePressed(int x, int y, int button);
		void mouseReleased(int x, int y, int button);
		void windowResized(int w, int h);
		void dragEvent(ofDragInfo dragInfo);
		void gotMessage(ofMessage msg);
		
};