//-----------------------------------------------------------------------------
// Name: getRandomVector()
// Desc: Generates a random vector where X,Y, and Z components are between
// -1.0 and 1.0
//-----------------------------------------------------------------------------
D3DXVECTOR3 getRandomVector( void )
{
D3DXVECTOR3 vVector;
// Pick a random Z between -1.0f and 1.0f.
vVector.z = getRandomMinMax( -1.0f, 1.0f );
// Get radius of this circle
float radius = (float)sqrt(1 - vVector.z * vVector.z);
// Pick a random point on a circle.
float t = getRandomMinMax( -D3DX_PI, D3DX_PI );
// Compute matching X and Y for our Z.
vVector.x = (float)cosf(t) * radius;
vVector.y = (float)sinf(t) * radius;
return vVector;
}
void GLWidget::createScene()
{
QFile democles(":Democles.dae");
m_World= GLC_Factory::instance()->createWorldFromFile(democles);
m_ShuttleBoundingBox= m_World.boundingBox();
GLC_StructOccurence* pRoot= m_World.rootOccurence();
QImage texture(QString(":particle.png"));
GLC_3DRep pointSprite;
const float min= -20000.0f;
const float max= 20000.0f;
for (int i= 0; i < 300; ++i)
{
QColor currentColor;
currentColor.setRedF(getRandomMinMax(0.4, 1.0));
currentColor.setGreenF(getRandomMinMax(0.4, 0.7));
currentColor.setBlueF(getRandomMinMax(0.4, 1.0));
GLC_Material* pMaterial= GLC_Factory::instance()->createMaterial(texture);
pMaterial->setDiffuseColor(currentColor);
pointSprite= GLC_Factory::instance()->createPointSprite(getRandomMinMax(5.0f, 10.0f), pMaterial);
GLC_StructReference* pStructReference= new GLC_StructReference(new GLC_3DRep(pointSprite));
GLC_StructInstance* pStructInstance= new GLC_StructInstance(pStructReference);
GLC_Point3d position(getRandomMinMax(min, max), getRandomMinMax(min, max), getRandomMinMax(min, max));
const double norm= position.length();
if ((norm > max) || (norm < (max / 2))) position.setLength(max);
pStructInstance->translate(position);
pRoot->addChild(pStructInstance);
}
}
