The primary purpose of opacity is to tell the game engine if it needs to draw behind the block; an opaque block completely obscures the view behind it, while a transparent block does not. Thus, transparency applies not only to solid blocks Comparison of the solid stone and liquid water blocks Solid blocks are a category of block. Contents 1 Properties 2 List of solid blocks 2.1 List of non-solid blocks 3 Height 4 Video 5 History minecraft like ice and glass, but also blocks like cacti Cactus Transparency Yes Luminance No Blast resistance 2 Tool Any tool Renewable Yes Stackable Yes (64) Flammable No Experience Smelted: 0.2 Drops Itself Data value dec: 81 hex: 51 bin: 1010001 Name cactus “ What do you reckon minecraft , stairs Stairs Transparency Partial (blocks light) Luminance No Blast resistance Wood: 15 Stone: 30 Sandstone, Quartz, Red Sandstone: 4 Tools Renewable Cobblestone, Stone Brick, Wood, Purpur: Yes All others: No Stackable Yes (64) Flammable Wood: Yes minecraft , and single slabs Slab Transparency Double slab: No Single slab: Partial (blocks light) Luminance No Blast resistance Wood: 15 Stone: 30 Tools Renewable Stone: Yes Wood: Yes (except Fake Wood) Cobblestone: Yes Stone Brick: Yes Purpur: Yes Quartz: minecraft , which are not considered full blocks.

Opacity also affects how light Light (or lighting) in Minecraft affects visibility, mob spawning, and plant growth. Contents 1 Brightness 1.1 Spread 2 Sources of light 2.1 Blocks 2.2 Other 3 Light-filtering blocks 4 Effects of light 4.1 Mobs 4.2 minecraft propagates through the world. Opaque blocks completely prevent light from traveling through them, while transparent blocks generally diminish the light by one light level per block (these value can be overridden be that as it may, and there are several exceptions). By this definition, transparency does not imply that a block is actually see-through, which is a quality of the item texture specified by the game or resource pack See the system to customize assets since 1.6.1. For the system used before 1.6.1, see Texture pack. The default textures, with a custom resource pack (DokuCraft) in the center. The resource pack minecraft .


When leaves are opaque (in "fast" graphics), they completely block rendering.
When leaves are transparent (in "fancy" graphics), the world behind them is also rendered.

Opacity (and its inverse, transparency) are properties of blocks Blocks may refer to: Block - cubes that make up the Minecraft world as a whole. Blocks music disc This disambiguation page lists articles associated with the same title. If an internal link led you with a wide range of effects on the game world.



  • In the Nether, your spawn point will always be on top of an opaque block. This is hard to observe, since you warp back to the Overworld when you die in the Nether.
  • If an opaque block is given transparent pixels in an edited texture, then instead of showing the block behind it through the transparent part, it will simply fill in the area with white.


A lot of the effects of opacity are non-obvious. Minecraft does not have a "solid" property on blocks, so opacity is tested when a test for "solidity" would normally occur.

On block light

Types of transparent blocks

Cube Solids
Non-Cube Solids
Non-Solid Mechanisms
Rendering Only



Issues relating to ⃢₀ₜOpacity⃢₀₝ are maintained on the issue tracker. Report issues there.