Robert Osfield
b6f05114dc
Fixed image allocation operations.
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git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/branches/OpenSceneGraph-3.2@14713 16af8721-9629-0410-8352-f15c8da7e697
2015-02-23 20:28:37 +00:00
Robert Osfield
a79a8d30f9
Convesion of osg::notify to OSG_INFO etc.
2010-05-28 15:47:52 +00:00
Robert Osfield
64acd4df54
From Hatwig Wiesmann, "osg::TransferFunction1D::assignToImage may assign NaN values to the image in case an underflow inside the method occurs. This underflow can be reproduced by the following call sequence:
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osg::TransferFunction1D* tf(new osg::TransferFunction1D());
tf->allocate(18);
tf->setColor(-10000,osg::Vec4( 1.0, 1.0, 1.0,1.0));
tf->setColor(-1e-6,osg::Vec4( 1.0, 1.0, 1.0,1.0));
tf->setColor( 0,osg::Vec4( 0.0, 0.0, 1.0,1.0));
Remark: The value -1e-6 may be added (falsely) because of a rounding error.
The attached fix prevents assigning NaN values to the image.
"
2010-04-23 09:29:50 +00:00
Robert Osfield
e53876bae9
Fixed bug in interpolation of colour values
2009-09-11 13:08:49 +00:00
Robert Osfield
2d55740b3e
Refactored osg::TransferFunction1D to use an std::map internally which is kept in sync with the actual osg::Image that is passed to the GPU.
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Added .osg support for osg::TransferFunction1D.
Updated wrappers
2009-02-02 14:43:27 +00:00
Robert Osfield
d6b0cd64f1
Ground work for full .osg support for osg::TransferFunction*
2009-02-01 12:38:55 +00:00
Robert Osfield
5c7a6a25a0
From Paul Melis, "I think TransferFunction needs to call _image->dirty() in two places in response to an assign() of new transfer map values.
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Here's an updated file, which seems to work here.
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2009-01-30 15:04:07 +00:00
Robert Osfield
995ead176a
Introduced TransferFunction1D::assign(ValueMap&).
2008-09-13 09:09:51 +00:00
Robert Osfield
67f1503c7d
Refactored osgTerrain so that the interface for setting up layer is more straight forward, and added support into GeometryTechnique for handling multiple layers
2008-02-22 11:52:23 +00:00
Robert Osfield
6516bf4910
Added TextureUnit entry to osg::TransferFunction and osgTerrain::Layer
2008-02-20 12:34:13 +00:00
Robert Osfield
43c24da12d
Added setValue method and osg::Image setup to osg::TransferFunction1D, and setup
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of TransferFunction1D into osgterrain example.
2007-04-02 13:06:59 +00:00
Robert Osfield
bff1b51361
Added preliminary work on osg::TransferFunction
2007-03-10 11:53:31 +00:00
