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#include "viewpoint.h"
#define DEBUG 0
void viewpoint::setup(float w, float h, float x, float y) {
window=ofRectangle(w,h,x,y);
distortFactor=0.0;
renderFBO.allocate(window.width,window.height,GL_RGB);
//todo: load/save from xml
fov=17.25;
aspect=1.79;
near=1;
far=20;
vars=new keyVar[8];
vars[0].set('w','s',17.25,0.5,1.0,3.0);
vars[1].set('g','d',0.0,10,1.0,3.0);
vars[2].set('r','v',112,10,1.0,3.0);
vars[3].set('t','c',0.0,10,1.0,3.0);
vars[4].set('u','n',0.0,10,1.0,3.0);
vars[5].set('j','h',0.0,10,1.0,3.0);
vars[6].set('o','l',1000.0,10,1.0,3.0);
vars[7].set('q','a',0,1,1.0,3.0);
light.enable();
light.setDirectional();
}
//--------------------------------------------------------------
void viewpoint::setLight(){
target.setPosition(vars[1].getVal(),vars[2].getVal(),vars[3].getVal());
camera.orbit(vars[5].getVal(), vars[4].getVal(), vars[6].getVal(), target);
camera.lookAt(target,ofVec3f(0,1,0));
light.setPosition(camera.getGlobalPosition());
}
//--------------------------------------------------------------
void viewpoint::begin(){
renderFBO.begin();
ofClear(0,0,0);
camera.begin();
camera.setFov(vars[0].getVal());
}
//--------------------------------------------------------------
void viewpoint::end(){
camera.end();
renderFBO.end();
ofPushMatrix();
bindTexture(renderFBO);
ofNoFill();
ofSetLineWidth(1.0);
//ofSetColor(I_fade1,I_fade1,I_fade1);
int gridX=50;
int gridY=50;
int xStep=ofGetWidth()/2;
int yStep=ofGetHeight()/2;
ofTranslate(ofGetWidth()/2,ofGetHeight()/2);
//todo: distort texcoords instead of vertex coords
for (float i = -1; i < 1.001; i+=(2.0f/gridY)){
glBegin(GL_QUAD_STRIP);
ofPoint p0;
ofPoint p1;
for (float j = -1; j < 1.001; j+=(2.0f/gridX)){
p0=distort(ofPoint(j,i-(2.0f/gridY)),vars[7].getVal());
p1=distort(ofPoint(j,i),vars[7].getVal());
glTexCoord2f((j+1)*0.5,((i-(2.0f/gridY))+1)*0.5);
glVertex3f(p0.x*xStep,p0.y*yStep,-0.1);
glTexCoord2f((j+1)*0.5,(i+1)*0.5);
glVertex3f(p1.x*xStep,p1.y*yStep,-0.1);
}
glEnd();
}
ofFill();
unbindTexture(renderFBO);
ofPopMatrix();
ofSetHexColor(0xFFFFFF);
ofDrawBitmapString("camera: "+ofToString(camera.getX(), 2)+","+ofToString(camera.getY(), 2)+","+ofToString(camera.getZ(), 2), 10, ofGetHeight()-30);
ofDrawBitmapString("light: "+ofToString(light.getX(), 2)+","+ofToString(light.getY(), 2)+","+ofToString(light.getZ(), 2), 10, ofGetHeight()-18);
}
//--------------------------------------------------------------
void viewpoint::keyPressed(int key){
for (int i=0;i<8;i++) vars[i].keyPressed(key);
if (DEBUG) printf("fov: %f distort: %f\n",vars[0].getVal(),vars[7].getVal());
}
//--------------------------------------------------------------
void viewpoint::keyReleased(int key){
for (int i=0;i<8;i++) vars[i].keyReleased(key);
}
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