//----------------------------------------------------------
void ofGLRenderer::draw(ofPath & shape){
ofColor prevColor;
if(shape.getUseShapeColor()){
prevColor = ofGetStyle().color;
}
if(shape.isFilled()){
ofMesh & mesh = shape.getTessellation();
if(shape.getUseShapeColor()){
setColor( shape.getFillColor() * ofGetStyle().color,shape.getFillColor().a/255. * ofGetStyle().color.a);
}
draw(mesh);
}
if(shape.hasOutline()){
float lineWidth = ofGetStyle().lineWidth;
if(shape.getUseShapeColor()){
setColor( shape.getStrokeColor() * ofGetStyle().color, shape.getStrokeColor().a/255. * ofGetStyle().color.a);
}
setLineWidth( shape.getStrokeWidth() );
vector<ofPolyline> & outlines = shape.getOutline();
for(int i=0; i<(int)outlines.size(); i++)
draw(outlines[i]);
setLineWidth(lineWidth);
}
if(shape.getUseShapeColor()){
setColor(prevColor);
}
}
//----------------------------------------------------------
void ofGLRenderer::draw(const ofPath & shape) const{
ofColor prevColor;
if(shape.getUseShapeColor()){
prevColor = ofGetStyle().color;
}
ofGLRenderer * mut_this = const_cast<ofGLRenderer*>(this);
if(shape.isFilled()){
const ofMesh & mesh = shape.getTessellation();
if(shape.getUseShapeColor()){
mut_this->setColor( shape.getFillColor(),shape.getFillColor().a);
}
draw(mesh,OF_MESH_FILL);
}
if(shape.hasOutline()){
float lineWidth = ofGetStyle().lineWidth;
if(shape.getUseShapeColor()){
mut_this->setColor( shape.getStrokeColor(), shape.getStrokeColor().a);
}
mut_this->setLineWidth( shape.getStrokeWidth() );
const vector<ofPolyline> & outlines = shape.getOutline();
for(int i=0; i<(int)outlines.size(); i++)
draw(outlines[i]);
mut_this->setLineWidth(lineWidth);
}
if(shape.getUseShapeColor()){
mut_this->setColor(prevColor);
}
}
//--------------------------------------------------------------
ofMesh ofApp::createMeshFromPath(ofPath path, float thickness){
ofMesh mesh;
// get outline of original path (for sides)
vector <ofPolyline> outline = path.getOutline();
// add front to mesh
mesh.append(path.getTessellation());
// get number of vertices in original path
int numVerts = mesh.getNumVertices();
// define offset based on thickness
ofVec3f offset = ofVec3f(0, 0, -thickness);
// translate path
path.translate(offset);
// add back to mesh
mesh.append(path.getTessellation());
// add sides to mesh (via indices)
for(int j = 0; j < outline.size(); j++){
int outlineSize = outline[j].getVertices().size();
vector <int> outlineIndices;
for(int i = 1; i < outlineSize; i++){
ofVec3f & v = outline[j].getVertices()[i];
int originalIndex = -1;
for(int k = 0; k < numVerts; k++){
if(v.match(mesh.getVertices()[k])){
originalIndex = k;
break;
}
}
outlineIndices.push_back(originalIndex);
}
for(int i = 0; i < outlineIndices.size(); i++){
const int a = outlineIndices[i];
const int b = outlineIndices[(i + 1) % outlineIndices.size()];
const int c = outlineIndices[i] + numVerts;
const int d = outlineIndices[(i + 1) % outlineIndices.size()] + numVerts;
mesh.addTriangle(a, b, c);
mesh.addTriangle(c, b, d);
}
}
return mesh;
}
// -----------------------------------
void Letter::setup(ofPath letter, float depth)
{
// Tessellation is subdividing a concave polygon into convex polygons.
front = letter.getTessellation();
back = front;
// Loop through all of the vertices in the "back" mesh
// and move them back in on the "z" axis
vector<ofPoint>& f = front.getVertices();
vector<ofPoint>& b = back.getVertices();
for(int j=0; j< f.size(); j++)
{
f[j].z += depth/2.0;
b[j].z -= depth/2.0;
}
}
//--------------------------------------------------------------
void testApp::draw(){
//curve eq
if (drawEQ) {
ofPushMatrix();
ofTranslate(600, ofGetHeight() - 50);
ofMesh eq_mesh = eq_path.getTessellation();
eq_mesh.drawVertices();
ofPopMatrix();
}
/* see what the fbo has in it */
if (drawFBO) {
ofPushMatrix();
ofTranslate(50, 50);
ofDrawBitmapString("FBO", 0, 0);
ofPopMatrix();
ofPushMatrix();
ofTranslate(50, 70);
posbuf.src->getTextureReference().bind();
glBegin(GL_QUADS);
glTexCoord2f(0, 0); glVertex3f(0, 0, 0);
glTexCoord2f(fbo_res, 0); glVertex3f(fbo_res, 0, 0);
glTexCoord2f(fbo_res, fbo_res); glVertex3f(fbo_res, fbo_res, 0);
glTexCoord2f(0, fbo_res); glVertex3f(0, fbo_res, 0);
glEnd();
posbuf.src->getTextureReference().unbind();
ofPopMatrix();
}
//actual sphere
ofPushMatrix();
ofTranslate(ofGetWidth()/2, ofGetHeight()/2);
cam.begin();
if (autoRotate) {
ofRotateY(-30);
ofRotateX(ang += angincr);
ofRotateZ(ofGetFrameNum() * 0.005);
} else {
ofRotateX(0.0);
ofRotateY(0.0);
ofRotateZ(0.0);
}
glEnable(GL_POINT_SMOOTH);
glHint(GL_POINT_SMOOTH_HINT, GL_NICEST);
shader.begin();
shader.setUniformTexture("u_OffMap", posbuf.src->getTextureReference(), 0);
shader.setUniform1f("u_fboRes", (float)fbo_res);
vm.drawVertices();
shader.end();
glDisable(GL_POINT_SMOOTH);
cam.end();
ofPopMatrix();
}
//--------------------------------------------------------------
void testApp::update(){
/* get the spectral data */
float * val = ofSoundGetSpectrum(nBandsToGet);
for (int i = 0; i < nBandsToGet; i++){
// let the smoothed calue sink to zero:
fftSmoothed[i] *= 0.96f;
// take the max, either the smoothed or the incoming:
if (fftSmoothed[i] < val[i])
fftSmoothed[i] = val[i];
if (fftSmoothed[i] > fftmax) {
fftmax = fftSmoothed[i];
}
}
/* update our bark map'd frequency bins */
memset(bins, 0x00, sizeof(bins));
for (int i = 0; i < SPECTRAL_BANDS; i++) {
int idx = barkmap[i];
bins[idx] += fftSmoothed[i] * 20;
}
/* put the eq vals into a path to turn them into a curve */
int line_len = fbo_res;
float ppseg = line_len /(float)(BARK_MAX+1);
eq_path.clear();
eq_path.curveTo(0, -bins[0]);
for (int i = 0; i < BARK_MAX; i++) {
// bins[i] = max(5.0f, bins[i]); //set a lower bound on the bin val
eq_path.curveTo(i * ppseg, -bins[i]);
}
// eq_path.curveTo(BARK_MAX * ppseg, -bins[0]);
// eq_path.curveTo(BARK_MAX * ppseg, -bins[0]);
//smooth this out a little at the end so the eq texture wraps, 25 = BARK_MAX
eq_path.curveTo(25 * ppseg, -(bins[0] + bins[24] + bins[23] + bins[22])/4.0f);
eq_path.curveTo(26 * ppseg, -bins[0]);
eq_path.curveTo(26 * ppseg, -bins[0]);
ofMesh eq_m = eq_path.getTessellation();
//load up the eq curve into a texture
eq_tex.loadData((float *)eq_m.getVerticesPointer(), fbo_res, 1, GL_RGB);
//update where on the axis we will apply the latest eq data
axis_loc--;
if (axis_loc < 0)
axis_loc = fbo_res;
//use fbo to work out displacement coeffcients
posbuf.dst->begin();
ofClear(0);
pos_shader.begin();
pos_shader.setUniformTexture("u_prevDisp", posbuf.src->getTextureReference(), 0);
pos_shader.setUniformTexture("u_newDisp", eq_tex, 1); //pass the new displacement data
pos_shader.setUniform1f("u_axisloc", axis_loc);
pos_shader.setUniform1f("u_decayRate", posdecayrate);
ofSetColor(255, 255, 255, 255);
glBegin(GL_QUADS);
glTexCoord2f(0, 0); glVertex3f(0, 0, 0);
glTexCoord2f(fbo_res, 0); glVertex3f(fbo_res, 0, 0);
glTexCoord2f(fbo_res, fbo_res); glVertex3f(fbo_res, fbo_res, 0);
glTexCoord2f(0, fbo_res); glVertex3f(0, fbo_res, 0);
glEnd();
pos_shader.end();
posbuf.dst->end();
posbuf.swap();
}