Method ScatterSky

Engine/source/environment/scatterSky.cpp:86–186

const F32 ScatterSky::smViewerHeight = 1.0f;

ScatterSky::ScatterSky()
{
   mPrimCount = 0;
   mVertCount = 0;


   // Rayleigh scattering constant.
   mRayleighScattering = 0.0035f;
   mRayleighScattering4PI = mRayleighScattering * 4.0f * M_PI_F;

   // Mie scattering constant.
   mMieScattering = 0.0045f;
   mMieScattering4PI = mMieScattering * 4.0f * M_PI_F;

   // Overall scatter scalar.
   mSkyBrightness = 25.0f;

   // The Mie phase asymmetry factor.
   mMiePhaseAssymetry = -0.75f;

   mSphereInnerRadius = 1.0f;
   mSphereOuterRadius = 1.0f * 1.025f;
   mScale = 1.0f / (mSphereOuterRadius - mSphereInnerRadius);

   // 650 nm for red
   // 570 nm for green
   // 475 nm for blue
   mWavelength.set( 0.650f, 0.570f, 0.475f, 0 );

   mWavelength4[0] = mPow(mWavelength[0], 4.0f);
   mWavelength4[1] = mPow(mWavelength[1], 4.0f);
   mWavelength4[2] = mPow(mWavelength[2], 4.0f);

   mRayleighScaleDepth = 0.25f;
   mMieScaleDepth = 0.1f;

   mAmbientColor.set( 0, 0, 0, 1.0f );
   mAmbientScale.set( 1.0f, 1.0f, 1.0f, 1.0f );

   mSunColor.set( 0, 0, 0, 1.0f );
   mSunScale = LinearColorF::WHITE;

   mFogColor.set( 0, 0, 0, 1.0f );
   mFogScale = LinearColorF::WHITE;

   mExposure = 1.0f;
   mNightInterpolant = 0;
   mZOffset = 0.0f;

   mShader = NULL;

   mTimeOfDay = 0;

   mSunAzimuth = 0.0f;
   mSunElevation = 35.0f;

   mMoonAzimuth = 0.0f;
   mMoonElevation = 45.0f;