Transparent hide the Mesh

Questions
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1

Hi all,
I assigned this material property to my mesh
{
side:THREE.FrontSide,
color:new THREE.Color(0xffffff),
map:‘shadow.png’,
envMapIntensity:1.0,
alphaMap:‘shadow-a.jpg’,
depthWrite : false,
}

but when i set transparent to true the mesh is hide
please help me

2

Please share enough for someone to reproduce the problem, there is very little here we can advise you on.