SCOL/ZooSCOL.cpp:
*****************
v4.6a2
050529: M3filter(): Multiple fixes (Full size filtering, misc. filters fixes).
050529: Surface2Bitmap(): Fixed a bug about the offset compute (32Bytes Surface 
                    data packs handling).
050626: M3filter(): Modified some filters again. Although this is not coherent 
                    regarding the language documentation, this brings the
                    proper result regarding former implementations.
                    Main problem is color implementation: bgr instead of rgb, 
                    mainly because this is how the ColorMap API handles colors
                    and that this API is used multiple times in modules, like
                    in C3D3...
050803: M3shiftTextureXY(): Removed verification of X & Y values so that they
                    no more be compared to NIL (which is defined as -1).
                    Values of -1 are thus now usable with this function.
                    Note: using nil values in the function will produce same
                    effect as -1 values.
                    Note: There's no need to modify M3shiftTextureXYF() as this
                    function uses OpenGL values (range 0.0 -> 1.0). And values
                    like -1.0 thus represent unuseful 100% shifts.
050820: _BlendBitmap2Surface():
                    As _Bitmap2Surface, but a transparency factor is applied
                    to the blitted bitmap.
                    _BlendBitmap2Surface surface xs ys bitmap xb yb wb hb transparency_color transparency_factor
050821: _CRforcedSurface():
                    As _CRsurface but without control for _CRfullscreenSurface.
050821: _CRforcedFullscreenSurface():
                    As _CRfullscreenSurface but without control for _CRsurface.
050821: _BlendSurface2Surface():
                    As _Surface2Surface but a transparency factor is applied
                    to the blitted surface.
                    _BlendSurface2Surface surfaceD xd yd surfaceS xs ys ws hs transparency_color transparency_factor
050822: M3getTextureSize():
                    Returns the current size of the texture (potentially stretched, 
                    not necessarily the original bitmap size)
                    M3getTextureSize session texture
050825: M3blitSurface2Texture():
                    Unfortunately, this function doesn't prove to bring some performance
                    improvement compared to _Surface2Bitmap & M3blitTexture16.
                    M3blitSurface2Texture session texture surface
v4.6a2
050911: M3textureGetType():
                    Modified OpenGL filter: TF_NONE, TF_LINEAR, TF_BILINEAR, TF_TRILINEAR
        M3textureSetType():
                    Modified OpenGL filter.
        M3textureSetGeneralDefaultType():
                    Modified OpenGL filter.
        M3textureGetGeneralDefaultType():
                    M3textureGetGeneralDefaultType session
050912: M3isExtensionSupported():
                    M3isExtensionSupported[S] I
                    Parameter: OpenGL extension
                    Returns: 0 or 1 if extension is available.
050913: M3filter():
                    Counter increment for "O'n'" filter. cf ZooTexture.cpp
050917: M3blitTexture16()
                    Fixed a bug about the offset compute (32Bytes Bitmap 
                    data packs handling).
050917: _BlendBitmap2Surface():
                    The function has been modified and now includes a new parameter
                    which allow you to set a transparency factor (0->255) to the
                    transparency color.
                    Note that, as with many other Scol functions, the transparency color is in BGR format.
                    _BlendBitmap2Surface surface xs ys bitmap xb yb wb hb transparency_color transparency_color_factor transparency_factor
050917: _BlendSurface2Surface():
                    The function has been modified and now includes a new parameter
                    which allow you to set a transparency factor (0->255) to the
                    transparency color.
                    Note that, as with many other Scol functions, the transparency color is in BGR format.
                    _BlendBitmap2Surface surface xs ys bitmap xb yb wb hb transparency_color transparency_color_factor transparency_factor
050924: _MX3renderEx() and all other rendering functions
                    Modified for clickable Sprites.
                    In case of clicked Sprite, returns H3d, HMat3d & Integer distance between camera and object (not z)
050924: M3setSpriteClickability()
                    Sets the clickable property of a Sprite.
                    flag = 0: Not clickable (Défault value)
                    Other flag value: Clickable
                    M3setSpriteClickability s3d h3d flag                    
050924: M3getSpriteClickability()
                    Returns the current clickable property of a Sprite: 0 if not clickable, 1 if clickable
                    M3getSpriteClickability s3d h3d

Datas/ZooTexture.cpp:
*********************
v4.6a1
050626: CreateModifiedImg(): Applying filters to textures
                    'A' filter: same modifications than M3filter
v4.6a2
050912: SetTextureFilter():
                    Modified OpenGL filter: TF_NONE, TF_LINEAR, TF_BILINEAR, TF_TRILINEAR
050913: CreateModifiedImg():
                    Added "O'n'" filter, for OpenGL filter
                    Note: This is not implemented in M3Filter(), although there is some 
                    counter increment if this code is encountered. 
050915: BLG_SetTextureFilter() & BLG_SetupTexture()
        [Modifications in Datas/ZooTexture.h too]
                    Compatibility between OpenGL filters and Scol filters.
050917: StretchImageModif()
                    Slight optimization.


Basic/ZooWorld.h:
*****************
v4.6a2
050921: BLG_GetAmbientLight() declaration
                    cf .cpp file below

Basic/ZooWorld.cpp:
*******************
v4.6a2
050921: BLG_GetAmbientLght() added (This is not a Scol function)
050921: RenderObjectPassTransp()
                    Function has been modified to handle LT material simultaneous properties.
                    This may require to fix existing T parameters to higher values.
                    This works only for ambient lights.
050924: ZBLG_ObjSpr() & ~ZBLG_ObjSpr()
                    Constructor & Destructor for ZBLG_ObjSpr class, used to allow Objects and 
                    Sprites detection (Only Objects were detected before that)
        BLG_TestSprObject()
                    As TestObject(), but dedicated to Sprites detection
        SelectionTest()
                    Function modified to allow Objects as well as Sprites detection.
        Note: For all these points, Basic/ZooWorld.h has been modified too. The ZBLG_ObjSpr 
                    class is described in this file.

Basic/ZooScene.cpp:
*******************
v4.6a2
050924: DisplayInfos()
                    Modified for clickable Sprites
050924: Getinfo()
                    Modified for clickable Sprites
                    ZooScene.h modified too
                    
Scene Graph/ZooSprite.cpp:
**************************
v4.6a2
050924: ZSprite class constructor modified to allow Sprites detection in 3D.
                    ZooSprite.h (ZSprite class) has been modified accordingly.