One of the more breathtaking scenes in Thor occurs when a representation of Ygdrassil, the Tree of Life, is revealed as a shimmering, crystalline ash tree, within whose branches the nine realms are realized. Rendered as pulsating galactic bodies integrated among the foliage, the tree and leaves were created using an l-system in Speedtree, and the spiral galaxies of the nine realms were produced using particle simulations in Maya and FumeFX fluids for the glowing nebulae. Using advanced depth cueing techniques Luma was able to bring it all together within a proper 3D volume, with the realms commingled within the leaves of the tree.