diff --git a/Component-Hologram.md b/Component-Hologram.md
index afc822d..d3d2945 100644
--- a/Component-Hologram.md
+++ b/Component-Hologram.md
@@ -1,5 +1,5 @@
-This component is provided by the Hologram Emitter.
-These can be used to create holographic projections in a maximum area of 48x32x48.
+This component is provided by the Hologram Projector.  
+These can be used to create holographic projections in a resolution of 48x32x48, over a maximum area of 9x6x9 blocks. Holograms are defined via 48x48 32-bit bit masks, where each bit defines whether the voxel at that height should be on or off.
 
 Component name: `hologram`.  
 Callbacks:
@@ -10,15 +10,39 @@ Callbacks:
 - `set(x:number, z:number, value:number)`  
   Set the bit mask for the specified column.
 - `fill(x:number, z:number, height:number)`  
-  Fills a column to the specified height.
+  Fills a column to the specified height. All voxels below and including the specified height will be set, all voxels above will be unset.
 - `getScale():number`  
-  Returns the render scale of the hologram.
+  Returns the current render scale of the hologram.
 - `setScale(value:number)`  
-  Set the render scale. A larger scale consumes more energy.
+  Set the render scale. A larger scale consumes more energy. The minimum scale is 0.33, where the hologram will fit in a single block space, the maximum scale is 3, where the hologram will take up a 9x6x9 block space.
 
-Example usage(programs below created by Sangar):  
-[Holo Flow](https://github.com/OpenPrograms/Sangar-Programs/blob/master/holo-flow.lua) --Generates a heightmap and 'moves' across it over time, creating the effect of a flowing terrain.
+Simple example program that allows setting individual voxels:
+```lua
+local component = require("component")
+local hologram = component.hologram
 
-[Holo Text](https://github.com/OpenPrograms/Sangar-Programs/blob/master/holo-text.lua) --Generates a random heightmap and displays scrolling text above it.
+function setVoxel(x, y, z, value)
+  local current = hologram.get(x, z)
+  local positiveMask = bit32.lshift(1, y - 1)
+  if value then
+    hologram.set(x, z, bit32.bor(current, positiveMask))
+  else
+    local negativeMask = bit32.bnot(positiveMask)
+    hologram.set(x, z, bit32.band(current, negativeMask))
+  end
+end
+
+local args = {...}
+setVoxel(tonumber(args[1]), tonumber(args[2]), tonumber(args[3]), args[4] == "true" or args[4] == "on")
+```
+
+Example use (assuming it's saved as `holo-set.lua`):  
+`# holo-set 16 8 20 true`
+
+Further examples:
+- [Holo Flow](https://github.com/OpenPrograms/Sangar-Programs/blob/master/holo-flow.lua)  
+  This program generates a heightmap and 'moves' across it over time, creating the effect of a flowing terrain.
+- [Holo Text](https://github.com/OpenPrograms/Sangar-Programs/blob/master/holo-text.lua)  
+  This program generates a random heightmap and displays scrolling text above it.
 
 Note, the second example is quite a bit more advanced then the first.
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