Add node to extend sigmas #7901
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Personally I don't agree on the naming, it's sort of out of place. I'd suggest renaming a bunch of things:
Also, I'd like to detach the interpolation space from the actual interpolation function, and introduce ...
interpolator = {
'linear': lambda x: x
'cosine': lambda x: torch.sin(x*math.pi/2)
'sine': lambda x: 1 - torch.cos(x*math.pi/2)
}[spacing]
# linear space for our interpolation function
x = torch.linspace(0, 1, steps + 1)[1:-1]
for i in range(len(sigmas) - 1):
...
if start_at_sigma <= sigma_current <= end_at_sigma:
interpolated_steps = interpolator(x) * (sigma_next - sigma_current) + sigma_current
extended_sigmas.extend(interpolated_steps.tolist())
... |
Co-authored-by: liesen <liesen.dev@gmail.com>
liesened
reviewed
May 1, 2025
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This PR adds a node that will extend the sigma values for a given sigma range. This is exactly identical functionality to #7890 but now applicable to any sampler -- see that PR for more details.