support Spherical Harmonics

[drumath2237]

[javagl]

Does this refer to the line at

spz-loader/packages/core/lib/spz-wasm/gaussianCloud.ts

Line 48 in b878dad

// FIXME: incorrect SH logic

?

The values seem to be read and forwarded from the result of reading the data with the SPZ library. Maybe there's a level of confusion from the fact that the loader apparently refers to the GaussianCloud class from the SPZ library as RawGaussianCloud. But the point is: Will the "fix" or "support" here imply that the order of the SH coefficients will be changed?