Weird shadow on block model

[Ideki]

Hello,

I made my custom multiblock (4 blocks tall, 2 blocks wide, 1 block deep) model with custom texture.
But there is something weird happening with the shadow on the upper section.

There is a clear color change between blocks.
The following screenshot shows a difference in brown color when the texture is actually all the same brown.

Each custom block has its own override of 'getShape' that returns the correct VoxelShape as I can see the edge of the microblocks highlighted correctly.

My blocks all use the same properties:
 

    public static final BlockBehaviour.Properties BODY_BLOCK_PROPERTIES = BlockBehaviour.Properties
            .of(Material.HEAVY_METAL, MaterialColor.TERRACOTTA_BROWN)
            .strength(-1.0F, 3600000.0F)
            .noDrops()
            .noOcclusion()
            .lightLevel(s -> 2)
            .sound(SoundType.METAL);

[MFMods]

if you're lucky, you just forgot a row saying    "shade": false,         in one of the model jsons. check that first.

[Ideki]

I am using BlockBench to make my model.

Is there a way to change the shade setting for all blocks in it, or do I have to do it manually for each element in the json files?

[Ideki]

Never mind, I found it.
It it the small star on the block property that controls it.
Thanks for your help :)

Edited February 20, 2022 by Ideki

[Ideki]

Hum no, that did not change anything.
I can still see the difference in colors.

[Ideki]

Ok, I think I understand what is going on.
I seems that it gets the light from a nearby light source I placed and that triggers the shadow.

So I guess it is solved, just not in a way I would like.
But still works.