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Fixed the d3d9 mipmapping for new formats. Still not a nice solution, though. Also enabled hardware mipmap update for d3d9 with an extra check for format support.

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Enhanced the meshbuffer interface. moved the recalculateBoundingBox from MeshManipulator to IMeshBuffer by exposing the already existing methods. Some initial append methods added.

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Added Win32 fullscreen enhancement, now trying to get a better refresh rate. Some minor changes, mainly to comments and indentation.

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Made geometry creation use IMesh instead of IAnimatedMesh. Moved Sphere meshbuffer into geometry creator and changed sphere scene node accordingly.

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Fixed a couple of spelling mistakes.

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Mem leak fixed in d3d RTT code identified by vitek. Some redundant code removed and OpenGL shader materials fixed for changing number of textures.

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disabled windows hires timer on multi-cpu systems when the process is running on more than one cpu. bug reported by _Alex`86_ and Halan.

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Temporarily disabled the non-alpha textures for d3d due to lack of mipmap support. Have to fix that first.

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Added a new texture creation flag for specifying the desired texture format. The new flag chooses a non-alpha channel texture format. This will save some texture memory (one fourth for 32bit textures).
Fixed another COpenGL render state bug.
Fixed several color conversion methods.

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fixed bugs with listbox automatic visibility of scrollbars, and clicking on listbox scrollbars when in a combo box.
items in a listbox are now selected as you type their text.

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fixed a bug where opengl scissor tests were not disabled after drawing 2d images with an invalid clipping rectangle.

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stole lightfeather's quaternion::toEuler function by mm765 (with permission) as it deals with singularities. added a constant for pi/2.

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