Textures clipping on zero-width cube

[charred cedar]

Is there any way to get around textures clipping like this on a zero-width cube? In Blockbench it renders fine, but ingame it looks like this. Interestingly it's fine when placed as a block, it only breaks when rendered like this with Minecraft.getMinecraft().getItemRenderer().renderItem(player, new ItemStack(Item.getItemFromBlock(ItemSmokingArmor.HAT_INSTANCE), 1), ItemCameraTransforms.TransformType.NONE);.

Version is 1.12.2, the rendering is done in a custom LayerRenderer registered on the player's renderer.

[misty hound]

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[slim trout]

Not sure if it's because it's a hat_instance or if it's items in general in 1.12 (has been years since i touched that version).
Blocks have always only rendered their outside face, while item in some cases rendered both sides).
Armor has always rendered inside and outside faces iirc.

[charred cedar]

Hm, but the block in my second image is rendering both faces no?

[slim trout]

it's rendering the outside of a north face and the outside of a south face (or whichever directions they are)

[fleet notch]

Minecraft.getMinecraft().getItemRenderer().renderItem(player, new ItemStack(Item.getItemFromBlock(ItemSmokingArmor.HAT_INSTANCE), 1), ItemCameraTransforms.TransformType.NONE);.

[slim trout]

if it renders the north face to be visible from inside and outside and does the same for the south face at the exact same position you get z-fighting

[fleet notch]

Depending on where you render, there is no backface culling. meaning that it renders both sides, of both vertices

But yeah, items in 1.12 did not have backface culling.

Your option is to render it as a block, or just skip the item/block rendering, and render the model straight.

[charred cedar]

Ah, gotcha, thanks!

[charred cedar]

Hm, seems like it's much harder to hook into the block rendering pipeline... at least in a way that's actually functional

BufferBuilder builder = Tessellator.getInstance().getBuffer();
BlockPos pos = player.getPosition();

builder.begin(7, DefaultVertexFormats.BLOCK);
builder.setTranslation((double)(-pos.getX()), (double)(-pos.getY()), (double)(-pos.getZ()));
Minecraft.getMinecraft().getBlockRendererDispatcher().renderBlock(ItemSmokingArmor.HAT_INSTANCE.getDefaultState(), pos, player.world, builder);

Tessellator.getInstance().draw();
builder.setTranslation(0, 0, 0);
GlStateManager.popMatrix();

Tried this, but there's now no lighting and backface culling is still nonexistent