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Code Issues Releases Wiki Activity

Correct moon texture with respect to trajectory

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This commit is contained in:
slothlife 2015-08-01 07:57:05 -05:00
parent 67a63cc662
commit 0244a9b329
1 changed files with 11 additions and 5 deletions
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16
apps/openmw/mwrender/sky.cpp
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@ -398,13 +398,19 @@ public:
void setState(const MoonState& state)
{
float radsX = ((state.mRotationFromHorizon) * M_PI) / 180.0f;
float radsY = 0;
float radsZ = ((state.mRotationFromNorth) * M_PI) / 180.0f;
osg::Quat rotation(radsX, osg::Vec3f(1.0f, 0.0f, 0.0f),
radsY, osg::Vec3f(0.0f, 1.0f, 0.0f),
radsZ, osg::Vec3f(0.0f, 0.0f, 1.0f));
setDirection(rotation * osg::Vec3f(0.0f, 1.0f, 0.0f));
osg::Quat rotX(radsX, osg::Vec3f(1.0f, 0.0f, 0.0f));
osg::Quat rotZ(radsZ, osg::Vec3f(0.0f, 0.0f, 1.0f));
osg::Vec3f direction = rotX * rotZ * osg::Vec3f(0.0f, 1.0f, 0.0f);
mTransform->setPosition(direction * 1000.0f);
// The moon quad is initially oriented facing down, so we need to offset its X-axis
// rotation to rotate it to face the camera when sitting at the horizon.
osg::Quat attX((-M_PI / 2.0f) + radsX, osg::Vec3f(1,0,0));
mTransform->setAttitude(attX * rotZ);
setPhase(state.mPhase);
setTransparency(state.mMoonAlpha);
setShadowBlend(state.mShadowBlend);