Talk:Opacity

Soul sand?
Isn't soul sand transparent? It has 9/10 height of usual blocks, much like farmland. Xeoxer 14:00, 28 February 2012 (UTC)
 * Soul sand is not transparent. Sort of the same way a fence positions things higher than it appears, soul sand positions them lower, but the block of soul sand occupies its entire cube visually and thus there is no need for Minecraft to consider it a transparent block, because it would never have to render anything through its block. --Munin295 04:00, 7 November 2012 (UTC)

TNT?
"TNT is transparent." Following to the wikipage about TNT, TNT is not transparant. I tested this and the light level reduces in a building made of TNT. TNT is not transparant –Preceding unsigned comment was added by 119.4.250.97 (Talk) 07:53, 11 July 2012‎ (UTC). Please sign your posts with
 * Confirmed (v1.4.2): TNT is not a transparent block. I'll change it. --Munin295 05:01, 6 November 2012 (UTC)
 * Actually, it may be more complicated than that. Looking at Orthotope's code decompilation summary, TNT, the block, has an opacity of 255 (like stone, etc.) and thus stops the propagation of light. But tnt, the material, has isTranslucent set to YES and isOpaque set to NO (incidentally, glowstone has all the same values). So there's actually three different values which define a block's "opacity". This is probably worth exploring/explaining in the Opacity article sometime, but I think elsewhere the term "opacity" should just be used to describe the propagation of light level (because that's what most players care about), so TNT should still be considered an opaque block. --Munin295 17:28, 7 November 2012 (UTC)

Comparators and Tripwire Hooks
It looks like this page hasn't been updated in a while, as comparators and tripwire hooks aren't on the chart of types of transparent blocks even though they are transparent. 50.47.89.63 05:52, 1 May 2013 (UTC)

About Redstone Block and TNT
"At first sorry for my bad english (I'm BR)

Theses blocks are transparent, but its partial. We need to create a new category in Types of Transparent Blocks, I think."

-Gerottinho 00:41, 27 July 2013 (UTC)
 * For the moment, I've just added them under "solid blocks". Contra Munin above, transparency is not just about blocking light, and there are other blocks which block light but otherwise act like Minecraft transparent blocks.  We probably do need a better discussion of the components of transparency:  Munin above cites isTranslucent, isOpaque, and the "opacity" of light transmission, and the texture itself is a fourth. --Mental Mouse 13:01, 27 July 2013 (UTC)