Adaptive anti aliasing, halton sequence with random first point, minimum 8 samples, maximum 64, adding 1 sample each time with 95% confidence level and delta max 0.01

Adaptive anti aliasing, halton sequence with random first point, minimum 4 samples, maximum 64, doubling each time with 95% confidence level and delta max 0.01

Number of samples per pixel with adaptive anti aliasing, minimum 4 samples, maximum 64, doubling each time with 95% confidence level and delta max 0.01

Halton sequence, random first sample, 16 samples per pixel, 2 seconds 24 threads

Halton sequence centered first sample 16 samples per pixel 2 seconds 24 threads

Monte Carlo, 16 samples per pixel, 2 seconds 24 threads

Fixed the transparent issue. Turns out you need to use a different hit info for each ray. Regular anti-aliasing with 16 samples per pixel, took 2 seconds 24 threads

transparent