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Code Issues 123 Wiki Activity

minor refactoring, shadows colour influenced by sun/moon positions

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tmj-fstate
2017-08-03 16:00:48 +02:00
parent c8a70e5280
commit 238ea7547d
9 changed files with 162 additions and 150 deletions
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13
sun.cpp
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@@ -251,21 +251,18 @@ void cSun::refract() {
void cSun::irradiance() {
static double degrad = 57.295779513; // converts from radians to degrees
static double raddeg = 0.0174532925; // converts from degrees to radians
m_body.dayang = ( simulation::Time.year_day() - 1 ) * 360.0 / 365.0;
double sd = sin( raddeg * m_body.dayang ); // sine of the day angle
double cd = cos( raddeg * m_body.dayang ); // cosine of the day angle or delination
double sd = std::sin( glm::radians( m_body.dayang ) ); // sine of the day angle
double cd = std::cos( glm::radians( m_body.dayang ) ); // cosine of the day angle or delination
m_body.erv = 1.000110 + 0.034221*cd + 0.001280*sd;
double d2 = 2.0 * m_body.dayang;
double c2 = cos( raddeg * d2 );
double s2 = sin( raddeg * d2 );
double c2 = std::cos( glm::radians( d2 ) );
double s2 = std::sin( glm::radians( d2 ) );
m_body.erv += 0.000719*c2 + 0.000077*s2;
double solcon = 1367.0; // Solar constant, 1367 W/sq m
m_body.coszen = cos( raddeg * m_body.zenref );
m_body.coszen = std::cos( glm::radians( m_body.zenref ) );
if( m_body.coszen > 0.0 ) {
m_body.etrn = solcon * m_body.erv;
m_body.etr = m_body.etrn * m_body.coszen;