well this is rare

 

i create a door block whit the texture of the trap door, but you can see trougth the holes in the door just four plain black squares. i change the parental json to cube_all to get a full block but dont solve the issue

 

soo i take the texture of the yellow glass and set it to the custome door

https://www.dropbox.com/s/b3s14pudaacis4d/amarillo.png?dl=0

 

to the left a column of 3 yellow stained glass, to the rigth a column of 3 blocks of my custome block door

in the hot bar the two blocks are transparents  and in the steve hand the block is traslucent as well but wen put in the world its become opaque

 

¿it is a flag i been forgothing,  was looking in the glass.class and don't see nothing special either in

 

glass_yellow

{
    "parent": "block/cube_all",
    "textures": {
        "all": "blocks/glass_yellow"
    }
}   

 

help please

To get it to render transparent you need to include in the blocks class

@SideOnly(Side.CLIENT)
    public EnumWorldBlockLayer getBlockLayer()
    {
        return EnumWorldBlockLayer.CUTOUT;
    }

W ooo it fixes .

 

but is sigthly diferent

 

https://www.dropbox.com/s/43xf8mhqltwr98j/amarillo00.png?dl=0

 

for now is whath i need but this behaviour can be fixed?

Once again it is similar to what I posted previously but slightly different. You just need to change "CUTOUT" to "TRANSLUCENT" and that fixes it