Suppose we want to make a 24-bit color texture (without alpha) specific color transparent in render, you can call makecolorkeytexture to create a 1-bit Alpha Channel of the texture, set materialtype to emt_transparent_alpha_channel. Please refer Code : Scene: ianimatedmesh * meshrabbit = smgr-> getmesh (".../../Media/mouse22.ms3d ");
Scene: ianimatedmeshscenenode * anoderabbit = smgr-> addanimatedmeshscenenode (meshrabbit );
If (anoderabbit)
{
Driver-> settexturecreationflag (Video: etcf_always_16_bit, true );
IRR: Video: itexture * ptexture = driver-> gettexture (".../../Media/wenli.jpg ");
Driver-> makecolorkeytexture (ptexture, core: position2d <s32> ));
Anoderabbit-> setmaterialtexture (0, ptexture );
Anoderabbit-> setmaterialtype (Video: emt_transparent_alpha_channel );
Anoderabbit-> setposition (core: vector3df (70, 20,-60 ));
Anoderabbit-> setmaterialflag (Video: emf_lighting, false );
Anoderabbit-> setrotation (core: vector3df (0, 180.0f, 0 ));
Anoderabbit-> setanimationspeed (25*30 );
} Of course, if texture itself has an alpha channel, you don't need to make makecolorkeytexture any more. There are two other modes to try: emt_transparent_add_color and emt_transparent_alpha_channel_ref.
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