Merged from 1.5 branch to trunk, all changes from 2042 to 2071. cursor setVisible fix, OSX FPS cam fix, ALPHA_CHANNEL_REF fix, new method draw2dRectOutline, setOverrideFont fixes, getCollisisonPoint distance bug fix.

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Add example 20 to C::B and VC7/VC9 projects.  Fix some build issues with the light manager and example.

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Adding an optional light manager that allows hardware lights to be turned on and off before each scene node is rendered. This can be used to produce "zoned" lighting.

If a light manager is not registered, the existing behaviour (activate the closest lights to the camera) will be retained unchanged.  New example project added to demonstrate the usage, and regression tests and existing samples run.  No regression test for the light manager yet, since I am more interested in not regressing the default behaviour.

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Have all public ISceneCollisionManager.h methods take 'const type &' rather than 'type' where appropriate.

Conversely, have CSceneManager::getPickedNodeBB() take a non-const 'core::line3df& ray', so that child nodes can truncate the master ray when they get a collision.

This is an API change, so goes to the trunk only.

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Last fix to CSceneCollisionManager::getPickedNodeBB(). ;)  Efficiency improvements to reduce the number of checks, since we can only hit one face of each box, and we needn't consider boxes that are further away than the closest hit.

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Another fix to CSceneCollisionManager::getPickedNodeBB(). Ensure that the collision point with the plane of a box is actually on the box surface rather than outside it.  Retested with regression test and example 07.

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Change ray/bounding box selection so that the nearest node is determined by the actual collision point with the bounding box (or the distance to the box centre if the ray starts inside the box).  Since this is a functional change from the old behaviour, I'm only committing to the trunk.  This will be slightly slower than the old method, but should return the correct node; I consider accuracy to take priority over efficiency for collision.

tests/sceneCollisionManager.cpp has been updated, as has examples/07.Collision/main.cpp.

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Merged from 1.5 branch to trunk, all changes from 2018 to 2041. OSX keyboard fix, OpenGL version fix, some tests fixed. Example 9 text position fixed.

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Update trunk tests: add textureRenderStates.cpp to tests_vc8.proj and tests.cbp; fix reversed logic in irrCoreEqual.cpp (the test wasn't being run); re-base the trunk tests/main.cpp on 1.5 tests/main.cpp, with the addition of those tests only available on the trunk.

Tested on Windows with MSVC 2005 and Code::Blocks, with a local trunk re-application of the terrainSceneNode.cpp change in SVN 2039 (which will get merged down separately).  I'll re-test on Linux as soon as I've committed this.

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Made the Anisotropic Filter degree configurable via the SMaterialLayer member which had been a bool formerly. Using the setFlag in SMaterial should still give MaxAnisotropy level as before.

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Hmm, didn't save the last files before committing. So this is the actual test cases which runs through.

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Added orthogonality check in matrix class, based on a patch by Halifax. Also added some (rather trivial) testcases, corner cases have to be identified...

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Merged revisions 1972:2004 from 1.5 branch, except for some revisions which seemed to be merged already. MD2 loader updated, terrain node fixed, opengl texture handling fixed.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@2005 dfc29bdd-3216-0410-991c-e03cc46cb475

Merge fix for CTerrainSceneNode::preRenderLODCalculations() to trunk; take the camera's up vector into account when determining whether terrain scene node visibility needs to be rechecked.  New test added; thanks to Travis for another great test case.

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Add missing irrCoreEquals.cpp test file.  Update changes.txt to note that position2d is now a synonym for vector2d.  Add proper doxygen \deprecated tags for position2d.

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Make position2d a typedef of vector2d.  Very tentatively deprecate position2d.  Add the position2d methods that operate on a dimension2d to vector2d.  Add vector2d constructor and equality methods to dimension2d.  Add a new test case that verifies that vector2d and position2d are interchangeable, and that vector2d and dimension2d can operate on and implicitly convert each other.  Remove the now duplicate position2d methods from CAttributeImpl.  Tested with unit/regression tests and building all the examples.  This should be a transparent change for users.

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Make the integral versions of irr::core::equals() do a direct == comparison when no explicit tolerance is specified, rather than using an implicit tolerance of 0.  The floating point versions are unchanged. New unit test added.

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http://irrlicht.sourceforge.net/phpBB2/viewtopic.php?p=181419

Partial fix for CSceneCollisionManager::getPickedNodeBB(), but we should push on and do a proper test for the actual intersection point with each hit cube.

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Fixing some benign but annoying build warnings about unhandled values in switch statements and order of pre-constructor instantiation.

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Fix bug in dimension2d::operator+=.  Add operator-= and have operator == use core::equals() while I'm in there.

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