Heres my json:
 

{
  "parent": "minecraft:block/cube_all",
  "textures": {
    "all": "testmod_examplemod:block/example_block"
  },
  "render_type": "minecraft:cutout"
}

with that it DOES make it transparent, but it also makes every block its touching (that face_ transparent!

im just coping the properties from the glass block whit no occlusion and the  "render_type": "translucent",

	            public static final RegistryObject<Block> GLASS_PANEL = registerBlock(
            "glass_panel",
            () -> new panel_pglass(BlockBehaviour.Properties.ofFullCopy(Blocks.GLASS_PANE).noOcclusion(),
                    """
                    {
                    "name":"glass_panel",
                    "en_us_lang" : "Glass Panel",
                    "es_es_lang" : "Panel De Vidrio",
                    "north": "minecraft:block/glass",
                    "crafthing_input_c0": "minecraft:glass",
                    "cutthing_input_c0": "minecraft:glass",
                    "no_drop" : "true"
                    }
                    """, crear_archivos_glass
            ) );
	

 

	        {
            "credit": "Made with Blockbench",
                "ambientocclusion": "true",
                "render_type": "translucent",
	            "elements": [
                {
                    "name": "panel",
                    "from": [0, 0, 0],
                    "to": [16, 16, 4],
                    "faces": {
                        "north": {"uv": [0, 0, 16, 16], "texture": "#north"},
                        "east": {"uv": [12, 0, 16, 16], "texture": "#east"},
                        "south": {"uv": [16, 0, 0, 16], "texture": "#south"},
                        "west": {"uv": [0, 0, 4, 16], "texture": "#west"},
                        "up": {"uv": [16, 16, 0, 12], "texture": "#up"},
                        "down": {"uv": [16, 4, 0, 0], "texture": "#down"}
                    }
                }
            ],
	

 

the thing whit this that rain and snow cannot be see trough the block