Hi, I’m beginner.
I wrote some source to draw wave things.
I made it with perlinNoise and vertices… and ofBeginshapes.
but I’m not satisfied with the result.
when I tried to draw a third wave, I got some kind of lagged or bug.
below image shows problem which I’m suffering from.
following source is my source code.
vector<glm::vec2> v, v2, v3;
double fv=777, fv2=132, fv3=0;
void ofApp::setup() {
ofSetFrameRate(60);
ofSetWindowTitle("openFrameworks");
//font.loadFont("BMHANNAPro.ttf", 90);
//sound.load("Track28.mp3");
ofBackground(239);
sound.setSpeed(2.0);
sound.setMultiPlay(true);
}
void ofApp::update() {
ofSeedRandom(39);
v.clear();
v.push_back({ 0, ofGetHeight() });
for (int i = 1; i < ofGetWidth()-1; i+=3)
{
v.push_back(glm::vec2(i, ofMap(ofNoise(i * 0.001, ofGetFrameNum()*0.00001,fv+=0.000001), 0, 1, 0, ofGetHeight())));
}
v.push_back({ ofGetWidth() - 1, ofGetHeight() });
v2.clear();
v2.push_back({ 0, ofGetHeight() });
for (int i = 1; i < ofGetWidth()-1; i+=3)
{
v2.push_back(glm::vec2(i, ofMap(ofNoise(i * 0.001, ofGetFrameNum()*0.00001, fv2+=0.000001), 0, 1, 0, ofGetHeight())));
}
v2.push_back({ ofGetWidth() - 1, ofGetHeight()});
v3.push_back({ 0, ofGetHeight() });
for (int i = 1; i < ofGetWidth()-1; i+=3)
{
v3.push_back(glm::vec2(i, ofMap(ofNoise(i * 0.001, ofGetFrameNum()*0.00001, fv3+=0.000001), 0, 1, 0, ofGetHeight())));
}
v3.push_back({ ofGetWidth() - 1, ofGetHeight() });
}
//--------------------------------------------------------------
void ofApp::draw() {
ofSetColor(0, 39, 255, 50);
ofBeginShape();
ofVertices(v);
ofEndShape();
ofSetColor(233, 233, 39,39);
ofBeginShape();
ofVertices(v2);
ofEndShape();
ofSetColor(0, 111, 100);
ofBeginShape();
//ofVertices(v3); // <--- problems
ofEndShape();
}
//--------------------------------------------------------------
int main() {
ofSetupOpenGL(1420, 960, OF_WINDOW);
ofRunApp(new ofApp());
}
I think the source what I wrote, does not have serious time complexity. ![:cry:]( ":cry:")
…
how can I get more performance?
sorry for lack of English. thanks for reading.
…