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Account for UV coordinate flip in UVController (Fixes #3203)

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scrawl 2016-02-11 16:22:54 +01:00
parent 6bfeb118d7
commit be6ea3d607
1 changed files with 6 additions and 0 deletions
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6
components/nifosg/controller.cpp
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@ -254,9 +254,15 @@ void UVController::apply(osg::StateSet* stateset, osg::NodeVisitor* nv)
float uScale = mUScale.interpKey(value); float uScale = mUScale.interpKey(value);
float vScale = mVScale.interpKey(value); float vScale = mVScale.interpKey(value);
osg::Matrix flipMat;
flipMat.preMultTranslate(osg::Vec3f(0,1,0));
flipMat.preMultScale(osg::Vec3f(1,-1,1));
osg::Matrixf mat = osg::Matrixf::scale(uScale, vScale, 1); osg::Matrixf mat = osg::Matrixf::scale(uScale, vScale, 1);
mat.setTrans(uTrans, vTrans, 0); mat.setTrans(uTrans, vTrans, 0);
mat = flipMat * mat * flipMat;
// setting once is enough because all other texture units share the same TexMat (see setDefaults). // setting once is enough because all other texture units share the same TexMat (see setDefaults).
if (!mTextureUnits.empty()) if (!mTextureUnits.empty())
{ {