Ogre实现物体透明

Ogre::MaterialPtr meterialPtr=Ogre::MaterialManager::getSingleton().getByName(meterialName);
    Ogre::Pass *pass=meterialPtr->getTechnique(0)->getPass(0);
    if (pass)
    {
        pass->setSceneBlending(Ogre::SBT_TRANSPARENT_ALPHA);
        pass->setDepthWriteEnabled(false);
        /*pass->setDepthCheckEnabled(false);*/
        pass->setDiffuse(1.0,1.0,1.0,(float)nAlpha/255);
        //pass->getTextureUnitState(0)->setAlphaOperation(Ogre::LBX_MODULATE, Ogre::LBS_TEXTURE, Ogre::LBS_MANUAL,1.0, (float)nAlpha/255);
    }

或者直接在材质文件里面配置

material 123

{

technique

{

pass

{

ambient 0.588 0.588 0.588 1

diffuse 1.0 1.0 1.0 0.15//修改alpha就可

specular 0.045 0.045 0.045 1 10

scene_blend alpha_blend

depth_write off

texture_unit

{

texture 123.bmp

}

}

}

}