It would be the same game, but with smaller blocks, right? But that would be the same as making your avatar bigger relatively to the blocks and doubling the number of layers to get the same mountains.
Maybe tweak the 'landscape-formula', the field of view somewhat, the render distance and you'r there... But I mentioned this before...
Second possibility is that an eighth-block is only possible to acquire in crafting, like the half-blocks (slabs)? To 'fill up the corners' so to say? I am very positive about this idea. Would be great for detail.
But to keep notice of on what spot on the surface of a block you must hit it to acquire an eighth block or the entire block wouldn't be my thing. I guess it must be a 'special' block, not like that any block can be broken in 8 new blocks, which would be the same as the first thing I mentioned...
All in all a good idea. But now I'm in need of some :Bacon:. sssssssSSSSSSSSSSSSSS
Now this is only half of what it would be. For the full version, you would have twice as many blocks, therefore the number of combinations is squared, which comes out to be 256. One combination (empty in all 8 blocks) would be redundant, so that would be removed, making 255. No sane person will make 256 block IDs for this, so that makes 255 data values for each type of block that can be split to eighths. This will be handled in the same way that half blocks and stairs are handled, only this time its a bit more intricate. Either way, it won't break the grid into eighths. The grid for placing blocks, however, should be changed while a 8th block is equipped to make placing easier.
I agree that this mod would be very convenient, especially for making statues that are detailed without being too large.
The problem with the half block concept is that it would only work if u were building out of one material. wht if u were a pixel artist? then it wouldnt work in most areas of the drawing. and as for the 1/8 1/2 thing people keep being bipolar about, the original post said "8 equally sized cubes" as in it would be cut up into a 2x2x2 grid, not an 8x8x8 grid as some have mentioned.
this would be really cool, especially for making detailed art, tile etc. great idea.
Maybe it would be faster to have a custom texture block so you could lay down patterns much faster. Uses such as laying down pillars for ancient greek style temples. lay down some eighth blocks on top to make it look more triangle-like and then theme the interior as you would like: magma pools, fountains, skeletons guarding your loot dungeon.
Reposting the tech stuff so it can be better understood.
Quote from yoshi9048 »
Breaking a block gives 8 equal sized microcubes. Take a block, slice it in half. Slice each half in half, get 4 quarters. Finally, slice each quarter in half. Congratulations, you've got eight microcubes.
Microcubes can be placed in the world as they are; they behave as half-blocks. To create other combinations, the microcubes have to be crafted together using the player's 2x2 crafting grid.
All microcubes will share the type and parameters of the parent type it was made from. For example, if the microcube was made from cactus, the placed block would deal damage and have the cactus texture. If made from glass, it would be transparent and fragile as a normal glass block.
Placing a microcube in the world will generate a unique id for each combination as a half-block. There are 15 8th-combinations that can be made with a half-block.
 :cobblestone:, placeable in 4 directions. 4 combinations, 1 ID
:cobblestone:, placeable in 4 directions. 4 combinations, 1 ID
:cobblestone:, placeable in 4 directions. 4 combinations, 1 ID.
:cobblestone:, creates a half-block of the material used. 1 ID.
That's a total of 15 combinations, with only 5 IDs taken up.
Since the microcubes can be crafted into half-blocks and stairs, stairs and half-blocks as separate items become obsolete and can be safely removed. There are 2 current stair types, 3 current half-block types. Ideally, with their removal, that frees up 5 IDs which could then be used for the above instead of creating new IDs. So in the end, the net change involved is 0.
And since microcubes would enable you to build half-blocks and stairs out of whatever material suits you, instead of the current limited varieties, this concept offers a far greater functionality while basically changing nothing.