FGFS-4.1/OpenSceneGraph
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osgText: perform pixel size computation in double-precision to prevent coordinate jitter

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This commit is contained in:
gwaldron 2018-05-21 13:26:04 -04:00
parent 2c7d97266d
commit a2447c8dc0
1 changed files with 3 additions and 3 deletions
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src/osgText/TextBase.cpp
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@ -514,9 +514,9 @@ bool TextBase::computeMatrix(osg::Matrix& matrix, osg::State* state) const
osg::Matrix mvpw = rotate_matrix * modelview * projection * osg::Matrix::scale(width/2.0, height/2.0, 1.0);
osg::Vec3 origin = osg::Vec3(0.0, 0.0, 0.0) * mvpw;
osg::Vec3 left = osg::Vec3(1.0, 0.0, 0.0) * mvpw - origin;
osg::Vec3 up = osg::Vec3(0.0, 1.0, 0.0) * mvpw - origin;
osg::Vec3d origin = osg::Vec3d(0.0, 0.0, 0.0) * mvpw;
osg::Vec3d left = osg::Vec3d(1.0, 0.0, 0.0) * mvpw - origin;
osg::Vec3d up = osg::Vec3d(0.0, 1.0, 0.0) * mvpw - origin;
// compute the pixel size vector.
value_type length_x = left.length();