After packing the rest of my textures I’m left with one ambient occlusion map. I’ve converted it from RGB to Grayscale in Photoshop and reimported it in an attempt to save a little bit of texture memory. The RGB version is 4MB and the Grayscale one is 1mb on disk.
When looking at the texture in the content browser the RGB one has a resource size of 683KB and the Grayscale one is 1365KB.
Is the resource size in the texture viewer representative of the memory use in game?