void Creature::draw(const ofCamera& cam)
{
ofPushMatrix();
if (cam.getPosition().z - getPosition().z > Creature::fogEnd)
{
ofTranslate(0, 0, Creature::fogEnd * floor((cam.getPosition().z - getPosition().z) / Creature::fogEnd));
}
else if (getPosition().z > cam.getPosition().z)
{
ofTranslate(0, 0, -Creature::fogEnd * ceil((getPosition().z - cam.getPosition().z) / Creature::fogEnd));
}
ofMultMatrix(getGlobalTransformMatrix());
customDraw();
ofPopMatrix();
}
void MarineSnow::draw(const ofCamera& cam)
{
// putting this here otherwise isn't working in VSE
tex.bind();
glTexEnvi(GL_POINT_SPRITE, GL_COORD_REPLACE, GL_TRUE);
tex.unbind();
ofPushStyle();
glPushAttrib(GL_ENABLE_BIT);
glEnable(GL_VERTEX_PROGRAM_POINT_SIZE);
glEnable(GL_POINT_SPRITE);
ofEnableAlphaBlending();
shader.begin();
shader.setUniform1f("innerFogStart", innerFogStart);
shader.setUniform1f("innerFogEnd", innerFogEnd);
shader.setUniform1f("fogStart", fogStart);
shader.setUniform1f("fogEnd", fogEnd);
shader.setUniform1f("nearClip", cam.getNearClip());
shader.setUniform1f("camZ", cam.getPosition().z);
shader.setUniform1f("time", ofGetElapsedTimef());
shader.setUniform1f("yMin", yMin);
shader.setUniform1f("yRange", yMax - yMin);
shader.setUniformTexture("tex", tex, 1);
mesh.draw();
shader.end();
glPopAttrib();
ofPopStyle();
}
void ParticleSystem::depthSort(ofCamera& cam)
{
/* depth sorting */
list< pair<int, float> > depthList;
// put indexed points and z-values into the list
for(unsigned int i = 0; i < particles.size(); i++) {
depthList.push_back( make_pair(i, ofVec3f(particles[i].pos - cam.getPosition()).length() ));
}
// sort the list
depthList.sort(DepthSortPredicate);
std::list<pair<int, float> >::iterator it;
int j = 0;
for(it = depthList.begin(); it != depthList.end(); it++) {
int i = it->first;
billboards.getVertices()[j] = particles[i].pos;
billboards.getColors()[j] = particles[i].colour;
billboards.setNormal(j,ofVec3f(particles[i].scale,spriteSheetWidth,particles[i].spriteCount));
rotations[j] = particles[i].rotation;
if(particles[i].animSpeed > 0) {
if((int)particles[i].age % particles[i].animSpeed == 0) particles[i].spriteCount++;
if(particles[i].spriteCount >= totalSprites) particles[i].spriteCount = 0;
}
j++;
}
}