init(atlasTextures:perEntityData:)

Initializes the resource with the given atlases and entity descriptors. The resources within atlasTextures must be 2D texture arrays. Textures containing data for ambient occlusion should be single-channel textures. Textures containing data for beauty bakes should contain RGBA color. Textures for diffuse irradiance should contain RGBA data. There should be 3 slices per atlas page. Assuming a = sqrt(2), b = sqrt(3), c = sqrt(6), and N0 = (1/c, 1/a, 1/b), N1=(-1/c, -1/a, 1/b), N2 = (a/b, 0, 1/b), the first, second and third slices should contain lighting as if the surface normal was respectively N0, N1 and N2 in tangent space.

convenience init(atlasTextures: [TextureResource], perEntityData: [LightmapResource.EntityLightmapDescriptor]) throws