Hello everyone,

Very junior mod maker here. I'm making a floating plank that sits over water. There's this heavy shadow on it when there's a block over it for some reason.

As you can see in the picture, the lily pad that has a block over it is just a little darker from the shadow. however my custom plank is almost dark.

I have no idea what might cause this.
If it is how I generate the block model, here's the code I'm using:
 

 getBuilder(block.getId().getPath())
                .ao(false)
                .texture("particle", new ResourceLocation(xxxxx.MODID, "block/" + block.getId().getPath()))
                .texture("texture", new ResourceLocation(xxxxx.MODID, "block/" + block.getId().getPath()))
                .element()
                .from(0.01f, -2f, 0.01f)
                .to(15.99f, 0.01f, 15.99f)
                .face(Direction.DOWN).uvs(0f, 0f, 16f,  16f).texture("#texture").cullface(Direction.DOWN).tintindex(0).end()
                .face(Direction.UP).uvs(0f, 0f, 16f, 16f).texture("#texture").cullface(Direction.UP).tintindex(0).end()
                .face(Direction.NORTH).uvs(0f, 0f, 16f, 2.01f).texture("#texture").cullface(Direction.NORTH).tintindex(0).end()
                .face(Direction.SOUTH).uvs(0f, 0f, 16f, 2.01f).texture("#texture").cullface(Direction.SOUTH).tintindex(0).end()
                .face(Direction.EAST).uvs(0f, 0f, 2.01f, 16f).texture("#texture").rotation(ModelBuilder.FaceRotation.CLOCKWISE_90).cullface(Direction.EAST).tintindex(0).end()
                .face(Direction.WEST).uvs(0f, 0f, 2.01f, 16f).texture("#texture").rotation(ModelBuilder.FaceRotation.CLOCKWISE_90).cullface(Direction.WEST).tintindex(0).end()
                .end();

 

Found the problem. The cullfaces were reversed. You need to set the cullface to UP on the DOWN face and vice-versa to all other faces. So that heavy shadow isn't a shadow, it's actually inside the block because the up face isn't rendered. And inside the block is almost dark because there's no light in there.

Here's the final code with a few more tweaks if anyone is interested:
 

getBuilder(block.getId().getPath())
    .ao(false)
    .texture("particle", new ResourceLocation(xxxxx.MODID, "block/" + block.getId().getPath()))
    .texture("texture", new ResourceLocation(xxxxx.MODID, "block/" + block.getId().getPath()))
    .element()
    .from(0f, -2f, 0f)
    .to(16f, 0.01f, 16f)
    .face(Direction.DOWN).uvs(0f, 0f, 16f,  16f).texture("#texture").cullface(Direction.UP).end()
    .face(Direction.UP).uvs(0f, 0f, 16f, 16f).texture("#texture").cullface(Direction.DOWN).end()
    .face(Direction.NORTH).uvs(0f, 0f, 16f, 2.01f).texture("#texture").rotation(ModelBuilder.FaceRotation.UPSIDE_DOWN).cullface(Direction.SOUTH).end()
    .face(Direction.SOUTH).uvs(0f, 0f, 16f, 2.01f).texture("#texture").cullface(Direction.NORTH).end()
    .face(Direction.EAST).uvs(0f, 0f, 2.01f, 16f).texture("#texture").rotation(ModelBuilder.FaceRotation.CLOCKWISE_90).cullface(Direction.WEST).end()
    .face(Direction.WEST).uvs(0f, 0f, 2.01f, 16f).texture("#texture").rotation(ModelBuilder.FaceRotation.COUNTERCLOCKWISE_90).cullface(Direction.EAST).end()
    .end();

 

Edited February 4, 20251 yr by DnDev