bool cGrCelestialBody::repaint( double angle )
{
static double prev_angle = 9999.0;
if (prev_angle != angle)
{
prev_angle = angle;
double factor = 4*cos(angle);
if (factor > 1) factor = 1.0;
if (factor < -1) factor = -1.0;
factor = factor/2 + 0.5f;
sgVec4 color;
color[0] = (float)pow(factor, 0.25);
color[1] = (float)pow(factor, 0.50);
color[2] = (float)pow(factor, 4.0);
color[3] = 1.0;
grGammaCorrectRGB( color );
float *ptr;
ptr = cl->get( 0 );
sgCopyVec4( ptr, color );
}
return true;
}
bool cGrMoon::repaint( double angle )
{
if (prev_moon_angle != angle)
{
prev_moon_angle = angle;
double moon_factor = 4 * cos(angle);
if (moon_factor > 1) moon_factor = 1.0;
if (moon_factor < -1) moon_factor = -1.0;
moon_factor = (moon_factor / 2) + 0.5f;
sgVec4 color;
color[1] = sqrt(moon_factor);
color[0] = sqrt(color[1]);
color[2] = moon_factor * moon_factor;
color[2] *= color[2];
color[3] = 1.0;
//color[0] = (float)pow(moon_factor, 0.25);
//color[1] = (float)pow(moon_factor, 0.50);
//color[2] = (float)pow(moon_factor, 4.0);
//color[3] = 1.0;
grGammaCorrectRGB( color );
float *ptr;
ptr = moon_cl->get( 0 );
sgCopyVec4( ptr, color );
}
return true;
}
