Hello there!

 

Background: I've been working on code for intergrading custom models into minecraft described in JSON format. Before that I've been writing models using ModelRenderers.

 

Before I could using custom models described in JSON, I used to write every box in ModelRenderer format, and then I had to check if the texture mapping is correct and is coordinates are fine too by running minecraft again and again. The problem was in the coordinate system.

 

Why the hell is ModelBase's coordinate system is so f*ck*d up?! Well, X and Z axes are kinda fine, but the Y axis is messed up completely! Why Y=0.0 isn't the bottom of the model, and instead it's something like 16 pixels (as I understand 16 pixels = 1 block (0.0625F))? That's not cool.

 

Why did Mojang/Notch choose that kind of origin for models?

 

P.S.: Is that the right forum for discussions?

Y axis is fine, take an example from the cube.json file:

 

{

    "parent": "block/block",

    "elements": [

        {  "from": [ 0, 0, 0 ],

            "to": [ 16, 16, 16 ],

            "faces": {

                "down":  { "texture": "#down", "cullface": "down" },

                "up":    { "texture": "#up", "cullface": "up" },

                "north": { "texture": "#north", "cullface": "north" },

                "south": { "texture": "#south", "cullface": "south" },

                "west":  { "texture": "#west", "cullface": "west" },

                "east":  { "texture": "#east", "cullface": "east" }

            }

        }

    ]

}

 

On the Y axis (in green) we can see that the block is going from y=0 to y=16

So I conclude that 0 is the bottom and 16 is the top of a typical minecraft block.

Y axis is fine, take an example from the cube.json file:

 

{

    "parent": "block/block",

    "elements": [

        {  "from": [ 0, 0, 0 ],

            "to": [ 16, 16, 16 ],

            "faces": {

                "down":  { "texture": "#down", "cullface": "down" },

                "up":    { "texture": "#up", "cullface": "up" },

                "north": { "texture": "#north", "cullface": "north" },

                "south": { "texture": "#south", "cullface": "south" },

                "west":  { "texture": "#west", "cullface": "west" },

                "east":  { "texture": "#east", "cullface": "east" }

            }

        }

    ]

}

 

On the Y axis (in green) we can see that the block is going from y=0 to y=16

So I conclude that 0 is the bottom and 16 is the top of a typical minecraft block.

 

I'm talking about ModelBase coordinate system, i.e. the one that Render<?> and entities use.