I have this issue with blocks with transparency like glass or leaaves:

I have this issue with blocks with transparency like glass or leaaves:
There its my code:

createGame = require('voxel-engine')
voxelGlass = require('voxel-glass')
voxel = require("voxel")

rnd1=()=>{
  return Math.random()
}
noise2d=(i,k)=>{
  return noise.simplex2(i,k)
}
noise3d=(i,j,k)=>{
  return noise.simplex3(i,j,k)
}
getSurfaceAt=(i,k)=>{
  return Math.floor(noise2d(i/10000,k/10000)*625+noise.simplex2(i/1000,k/1000)*125+noise.simplex2(i/100,k/100)*25)
}
getBiomeAt=(i,k)=>{
  noise1=noise2d(i/10**4,k/10**4)*100
  if( 33 <noise1&&noise1<=100){return "forest"}
  if(-33 <noise1&&noise1<= 33){return "meadows"}
  if(-100<noise1&&noise1<=-33){return "desert"}
}

initx=Math.random()*10**5
initz=Math.random()*10**5

var game = createGame({
  texturePath: 'textures/',
  generate: function(i, j, k) {
    let biome=getBiomeAt(i,k);
    let surface=getSurfaceAt(i,k)
    let target2d=noise2d(i/10,     k/10)
    let target3d=noise3d(i/10,j/10,k/10)
    if(biome=="forest"){
      //Forest.
      if(     j<surface-10&&                                                         target3d< 0.00)   {return 3}//Stone.
      else if(surface-10<j&&j<surface&&                                              target3d< 0.50)   {return 2}//Dirt.
      else if(surface===j&&                                                          target3d< 0.50)   {return 1}//Grass.
      else if(j===surface+1&&rnd1()<0.1&&                                            target3d< 0.00)   {return 5}//Bushes.
      else if(j>surface-100&&j<surface+15&&i%4<1&&k%4<1&&                            target2d<-0.50)   {return 4}//Trunks.
      else if(j>surface+10&&j<surface+15                                                           )   {return 5}//Leaves.
    }else if(biome=="meadows"){
      //Meadows.
      if(     j<surface-10&&                                                         target3d< 0.00)   {return 3}//Stone.
      else if(surface-10<j&&j<surface&&                                              target3d< 0.50)   {return 2}//Dirt.
      else if(surface===j&&                                                          target3d< 0.50)   {return 1}//Grass.
      else if(j===surface+1&&i%3!=1&&k%3!=1&&noise3d((i+1000)/10,j/10,k/10)<0&&      target3d< 0.00)   {return 5}//Bushes.
    }else if(biome=="desert"){
      //Desert.
      if(     j<surface-10&&                                                         target3d< 0.25)  {return 11}//Sandstone.
      else if(surface-10<j&&j<surface&&                                              target3d< 0.25)  {return 8}//Sand.
      else if(j<surface+4&&i%2<1&&k%2<1&&                                            target2d<-0.50)  {return 9}//Cactus body.
      else if(j===surface+4&&i%2<1&&k%2<1&&                                          target2d<-0.50)  {return 10}//Cactus head.
    }
  },
  plugins:[voxelGlass],
  materials: [
    ['grass', 'dirt', 'grass_dirt'],
     'dirt',
     'stone',
     ['trunk_top', 'trunk_top', 'trunk_side'],
     'leaves',
     'planks',
     'bricks',
     'sand',
     ['cactus_bottom', 'cactus_bottom', 'cactus_side'],
     ['cactus_top', 'cactus_bottom', 'cactus_side'],
     ['sandstone'],
     ['stone_pickaxe'],
     ['stone_axe'],
     ['stone_shovel'],
     ['stone_hoe'],
     ['glass']
  ],
  meshers:[
    voxel.meshers.greedy,
    voxel.meshers.transgreedy,
  ],
  lightsDisabled: false,
  fogDisabled: true,
  chunkDistance: 2,
  chunkSize: 16
});
game.materials.doubleSided = true
container=document.body
game.appendTo(container)
createPlayer=require('voxel-player')(game)
fawful=createPlayer('fawful.png')
fawful.possess()
fawful.yaw.position.set(initx,getSurfaceAt(initx,initz)+10,initz)
totalBlocks1Sum=0
currentBlock=12
blocks1={}
for(i=1;i<=11;i++){//A bunch of blocks.
  blocks1[i]={c:0,dur:0,space:1}
}
for(i=12;i<=15;i++){//Tools.
  blocks1[i]={c:1,dur:100,space:32}
}
for(i=16;i<=16;i++){//Glass.
  blocks1[i]={c:0,dur:0,space:1}
}
crafting=false
health={current:100,max:100}
food={current:100,max:100}
energy={current:100,max:100}
currentCraft=1
document.addEventListener("keydown",(e)=>{
  if(e.key=='g'){

  }
  if(e.key=='q'&&currentBlock>1){
    currentBlock--
    while(blocks1[currentBlock].c==0&&currentBlock>1){
      currentBlock--
    }
  }else if(e.key=='q'&&currentBlock==1){
    currentBlock=16
    while(blocks1[currentBlock].c==0&&currentBlock>1){
      currentBlock--
    }
  }
  if(e.key=='e'&&currentBlock<16){
    currentBlock++
    while(blocks1[currentBlock].c==0&&currentBlock<16){
      currentBlock++
    }
  }else if(e.key=='e'&&currentBlock==16){
    currentBlock=1
    while(blocks1[currentBlock].c==0&&currentBlock<16){
      currentBlock++
    }
  }
  if(e.key=='z'){
    if(currentCraft>0){
      currentCraft--
    }
  }
  if(e.key=='x'){
    //1 wood + 1 stone => stone pickaxe.
    if(currentCraft==1&&totalBlocks1Sum<512-32&&blocks1[3].c>=1&&blocks1[4].c>=1){
        crafting=true
        setTimeout(()=>{
            crafting=false
            blocks1[12].c++;blocks1[3].c--;blocks1[4].c--
        },3000)
    }
    //1 wood + 1 stone => stone axe.
    if(currentCraft==2&&totalBlocks1Sum<512-32&&blocks1[3].c>=1&&blocks1[4].c>=1){
        crafting=true
        setTimeout(()=>{
            crafting=false
            blocks1[13].c++;blocks1[3].c--;blocks1[4].c--
        },3000)
    }
    //1 wood + 1 stone => stone shovel.
    if(currentCraft==3&&totalBlocks1Sum<512-32&&blocks1[3].c>=1&&blocks1[4].c>=1){
        crafting=true
        setTimeout(()=>{
            crafting=false
            blocks1[14].c++;blocks1[3].c--;blocks1[4].c--
        },3000)
    }
    //1 wood + 1 stone => stone höe.
    if(currentCraft==4&&totalBlocks1Sum<512-32&&blocks1[3].c>=1&&blocks1[4].c>=1){
        crafting=true
        setTimeout(()=>{
            crafting=false
            blocks1[15].c++;blocks1[3].c--;blocks1[4].c--
        },3000)
    }
    //1 fuel + 1 sand => glass.
    if(currentCraft==5&&totalBlocks1Sum<512-1&&blocks1[8].c>0&&(blocks1[9].c>0||blocks1[10].c>0||blocks1[5].c>0||blocks1[4].c>0)){
      crafting=true
      setTimeout(()=>{
        blocks1[8].c--
        if(blocks1[9].c>0){
          blocks1[9].c--
        }else if(blocks1[10].c>0){
          blocks1[10].c--
        }else if(blocks1[5].c>0){
          blocks1[5].c--
        }else if(blocks1[4].c>0){
          blocks1[4].c--
        }
        blocks1[16].c++
        crafting=false
      },10000)
    }
  }
  if(e.key=='c'){
    if(currentCraft<5){
      currentCraft++
    }
  }
})
document.addEventListener("mousedown",(e)=>{
  if(e.button==0){
    //Destroy.
    raycastResults=game.raycastVoxels()
    if(totalBlocks1Sum<512){
      if(
        blocks1[currentBlock].dur>0
        &&
        energy.current>50
        &&
        (
          (game.getBlock(raycastResults.voxel)==1&&currentBlock==14)//Grass.
          ||
          (game.getBlock(raycastResults.voxel)==2&&currentBlock==14)//Dirt.
          ||
          (game.getBlock(raycastResults.voxel)==3&&currentBlock==12)//Stone.
          ||
          (game.getBlock(raycastResults.voxel)==4&&currentBlock==13)//Trunk.
          ||
          (game.getBlock(raycastResults.voxel)==5&&currentBlock==15)//Leaves.
          ||
          (game.getBlock(raycastResults.voxel)==6&&currentBlock==13)//Planks.
          ||
          (game.getBlock(raycastResults.voxel)==7&&currentBlock==12)//Bricks.
          ||
          (game.getBlock(raycastResults.voxel)==8&&currentBlock==14)//Sand.
          ||
          (game.getBlock(raycastResults.voxel)==9&&currentBlock==13)//Cactus bottom.
          ||
          (game.getBlock(raycastResults.voxel)==10&&currentBlock==13)//Cactus top.
          ||
          (game.getBlock(raycastResults.voxel)==11&&currentBlock==12)//Sandstone.

          ||//11 to 15 Bother Inclusive are tools.
          
          (game.getBlock(raycastResults.voxel)==16&&currentBlock==12)//Glass.
        )
      ){
        energy.current-=5
        blocks1[game.getBlock(raycastResults.voxel)].c++
        blocks1[currentBlock].dur--
        game.setBlock(raycastResults.voxel,0)
        console.log("Destroying block.")
      }else if(
        blocks1[currentBlock].c>0
        &&
        energy.current>50
        &&
        (
          (game.getBlock(raycastResults.voxel)==1&&currentBlock==14)//Grass.
          ||
          (game.getBlock(raycastResults.voxel)==2&&currentBlock==14)//Dirt.
          ||
          (game.getBlock(raycastResults.voxel)==3&&currentBlock==12)//Stone.
          ||
          (game.getBlock(raycastResults.voxel)==4&&currentBlock==13)//Trunk.
          ||
          (game.getBlock(raycastResults.voxel)==5&&currentBlock==15)//Leaves.
          ||
          (game.getBlock(raycastResults.voxel)==6&&currentBlock==13)//Planks.
          ||
          (game.getBlock(raycastResults.voxel)==7&&currentBlock==12)//Bricks.
          ||
          (game.getBlock(raycastResults.voxel)==8&&currentBlock==14)//Sand.
          ||
          (game.getBlock(raycastResults.voxel)==9&&currentBlock==13)//Cactus bottom.
          ||
          (game.getBlock(raycastResults.voxel)==10&&currentBlock==13)//Cactus top.
          ||
          (game.getBlock(raycastResults.voxel)==11&&currentBlock==12)//Sandstone.

          ||//11 to 15 Bother Inclusive are tools.

          (game.getBlock(raycastResults.voxel)==16&&currentBlock==12)//Glass.
        )
      ){
      	blocks1[currentBlock].c--
        blocks1[currentBlock].dur=100
      }
    }
  }else{
    //Place.
    raycastResults=game.raycastVoxels()
    if(
      energy.current>50
      &&blocks1[currentBlock].c>0
      &&game.getBlock(raycastResults.adjacent)==0
      &&currentBlock!==12
  	  &&currentBlock!==13
  	  &&currentBlock!==14
  	  &&currentBlock!==15
    ){
      game.setBlock(raycastResults.adjacent,currentBlock)
      energy.current-=5
      blocks1[currentBlock].c--
      console.log("Placing block.")
    }
  }
})

fawful.yaw.cameraInside.position.set(0,5,0)
render=()=>{
  if(crafting==true){
    countCraftDIV.innerHTML="Crafting."
    countCraftDIV.color="rgb(0,255,0)"
  }else if(currentCraft==1&&blocks1[3].c>0&&blocks1[4].c>0){
    countCraftDIV.innerHTML="1 wood + 1 stone => 1 stone pickaxe."
    countCraftDIV.color="rgb(255,255,255)"
  }else if(currentCraft==2&&blocks1[3].c>0&&blocks1[4].c>0){
    countCraftDIV.innerHTML="1 wood + 1 stone => 1 stone axe."
    countCraftDIV.color="rgb(255,255,255)"
  }else if(currentCraft==3&&blocks1[3].c>0&&blocks1[4].c>0){
    countCraftDIV.innerHTML="1 wood + 1 stone => 1 stone shovel."
    countCraftDIV.color="rgb(255,255,255)"
  }else if(currentCraft==4&&blocks1[3].c>0&&blocks1[4].c>0){
    countCraftDIV.innerHTML="1 wood + 1 stone => 1 stone hoe."
    countCraftDIV.color="rgb(255,255,255)"
  }else if(currentCraft==5&&blocks1[8].c>0&&(blocks1[9].c>0||blocks1[10].c>0||blocks1[5].c>0||blocks1[4].c>0)){
    countCraftDIV.innerHTML="1 sand + 1 fuel => 1 glass."
    countCraftDIV.color="rgb(255,255,255)"
  }else{
    countCraftDIV.innerHTML="Nothing for craft."
    currentCraft=Math.floor(Math.random()*6+1)
  }
  food.current-=0.0001
  //Muerte de hambre.
  if(food.current<25&&health.current>0){
    health.current--
  }
  //Cualquier muerte.
  if(Math.floor(health.current)==0){
    location.reload()
  }
  //Descansar.
  if(energy.current<100){
    energy.current+=0.08
  }
  //Esforzarse.
  if(10<food.current&&energy.current<50){
    food.current-=0.0025
  }
  countHealthDIV.innerHTML="Health: "+Math.floor(health.current)+"%"
  countFoodDIV.innerHTML="Food: "+Math.floor(food.current)+"%"
  if(energy.current<50){
    countEnergyDIV.innerHTML="Energy: "+Math.floor(energy.current)+"%!!!"
    countEnergyDIV.style.color="red"
  }else{
    countEnergyDIV.innerHTML="Energy: "+Math.floor(energy.current)+"%"
    countEnergyDIV.style.color="white"
  }
  cactus_collide=false
  for(x=-1;x<1;x++){
    for(y=-1;y<1;y++){
      for(z=-1;z<1;z++){
        if(game.getBlock(
          Math.floor(fawful.yaw.position.x)+x,
          Math.floor(fawful.yaw.position.y)+y,
          Math.floor(fawful.yaw.position.z)+z
        )==9
        ||game.getBlock(
          Math.floor(fawful.yaw.position.x)+x,
          Math.floor(fawful.yaw.position.y)+y,
          Math.floor(fawful.yaw.position.z)+z
        )==10
        ){
          cactus_collide=true
        }
      }
    }
  }
  if(cactus_collide==true){
    countHealthDIV.style.color="rgb(255,0,0)"
    health.current-=0.05
  }else if((blocks1[9].c>0||blocks1[10].c>0)&&health.current>0){
    health.current-=0.05
    countHealthDIV.style.color="rgb(255,0,0)"
  }else{
    countHealthDIV.style.color="rgb(255,255,255)"
  }
  requestAnimationFrame(render)
  totalBlocks1Sum=0
  for(i=1;i<=16;i++){
    totalBlocks1Sum+=blocks1[i].c*blocks1[i].space
  }
  if(currentBlock!==12
   &&currentBlock!==13
   &&currentBlock!==14
   &&currentBlock!==15
  ){
    countBlockDIV.innerHTML=blocks1[currentBlock].c+" => "+totalBlocks1Sum+"/512"
  }else{
    countBlockDIV.innerHTML=blocks1[currentBlock].c+" => "+totalBlocks1Sum+"/512 "+blocks1[currentBlock].dur+"%"
  }
  if(blocks1[currentBlock].c!=0){
    if(currentBlock==1){
      IMGPlaceBlock.src="textures/grass_dirt.png"
    }else if(currentBlock==2){
      IMGPlaceBlock.src="textures/dirt.png"
    }else if(currentBlock==3){
      IMGPlaceBlock.src="textures/stone.png"
    }else if(currentBlock==4){
      IMGPlaceBlock.src="textures/trunk_side.png"
    }else if(currentBlock==5){
      IMGPlaceBlock.src="textures/leaves.png"
    }else if(currentBlock==6){
      IMGPlaceBlock.src="textures/planks.png"
    }else if(currentBlock==7){
      IMGPlaceBlock.src="textures/bricks.png"
    }else if(currentBlock==8){
      IMGPlaceBlock.src="textures/sand.png"
    }else if(currentBlock==9){
      IMGPlaceBlock.src="textures/cactus_side.png"
    }else if(currentBlock==10){
      IMGPlaceBlock.src="textures/cactus_top.png"
    }else if(currentBlock==11){
      IMGPlaceBlock.src="textures/sandstone.png"
    }else if(currentBlock==12){
      IMGPlaceBlock.src="textures/stone_pickaxe.png"
    }else if(currentBlock==13){
      IMGPlaceBlock.src="textures/stone_axe.png"
    }else if(currentBlock==14){
      IMGPlaceBlock.src="textures/stone_shovel.png"
    }else if(currentBlock==15){
      IMGPlaceBlock.src="textures/stone_hoe.png"
    }else if(currentBlock==16){
      IMGPlaceBlock.src="textures/glass.png"
    }else{
      IMGPlaceBlock.src="textures/question_block.png"
      countBlockDIV.innerHTML="Empty."
    }
  }else{
    IMGPlaceBlock.src="textures/question_block.png"
    countBlockDIV.innerHTML="Empty."
  }
}
render()

And the result is this:

Reproduce the transparency problem using the inline example, focusing first on the voxel-glass plugin, the glass and leaves materials, and the greedy and transgreedy meshers. The issue names no repository files or tests, so identify the relevant rendering entry point and define done as transparent blocks displaying correctly without the reported glass or leaves artifact.