@Christoph-Hart It's unrelated to smoothing, the parameter input is static and if I turn off the smoothing it's still the same.
here's a snippet
HiseSnippet 2098.3oc6Z0zSibjFtaaJy.yjumIatrq5CajHRiPXxjuTNfGv.wZiAKLgjbhTzcY6VzcUs5tLCNQ6881lqbIJ+Bh1q6M9Mr43dY+Ivufc22pptcWs61FiGCYPJLRCTu0WOue+VcUsBY1jnHVng4RGNHfXX9HT6ATdus5gcoFMpaX95nl3HNIzRQZyAA3nHhigoY4cEDLWZAC4OWswlXOL0ljRxv3HlqM4Kc8c4oTaU6u354sC1gbnqu1neVsF1L5VLOVe.OkQqYDfsOE2krGVLrRHCyJa63xYgs4XNIxvbgMYNCZ2i8BpZ7G4F4dhGQznpQaXgTj2g44HPrfpwV8b8bZkv2QFFlnVoRgxJoviQMccbGROUZ7lxNrRmgt7vrTV3UNC7ppCu0zfWAPxTCRKnfzagZaG5FvS6QfmGhZPAkSGLH10ghZrFlWh1hACfxW0GeJYmPnwvIrxGu1ZO0B9uO3y6zmZycYTKFcOFmrOckOX4eX4kV9utr0nc0oSg8I1lPlmGIrvtEZ5vIMwUn88OgD9Tqyvd8ICGHv9YkonwKS0U41JtVafLZCpKe+.BcbFBFwhJ3u9pF0wbrPQDSCFW.Ij6JffYcxYfUsRsrDpNI5TNK.rqyoy.qElSeOLOqIjvuItCPFjQuITNzHW9.c+p4lc0zBw2B0xka2qXLVp.LBRpaCLF6M9Zns6zgXySA3Bnc9laIWux4kQKG65A6oXyeTbSqc9lpE5z82PoF3Agj.bH4PVKO7fUhv9AdjC.L9TqS7X1m1186I48JBTPXSwHVwtGlRIdQyhySkoVpTcxJkCX84tztMw7P2yAuv8562FBSaS1JFc.MyRBeHU60DsE1EsITGYi+G7SbmUEsMi6rZRmZte6Q3ufEdpLRX7eaXtnR1GIExG247pFO2yi8hsX9AtwVofNPRqEyaPPOF00VPRMhDj9beVeXShg6WfiND65ILqa2OBBN3rOsMLXYZLyxGQBijK7hn0VE9GXluGyA5pxNXaPvNnEl2S3uHh2.FmjvUsGZjlAq51IhkHIMmRJAPzWv5hjbB8SKbHjyChSKB2TRZSlD9QkbPzB7+Jo1mFQGI50F6YbjvBPLICwtnjfRDiTCsi64e5wRSOiLrv6pwBZiY5g8r.xxCAYIMPtLxm4nDiYf3i0f3vQb6BvToXEM.9GQQ9LFuGw43fDE0w8oQvLAfjAyuuDyfK5pSZJyMlnhHZNIA9uF5KAgENz5.HrigQZ37CwgcIbobGb5nDak2iTIzvQrL1fOiwPqPAsGgNrWHIpWOnXJYpx7SCgvNNYm0hHEVLzrnELQRKXDMcow3MMaRS74iP6pMZyIAhvk5iq8ojWnj25iTHIR13bK8y6yY9P3PYpLCMfTYDf7yWbw+bib.o1eu1H.QNtwCj2.0Vp4gnmxxc0VtZULL9rZSBC2.gwUS.CKg1lhOQXokagLzrqU5uL1ufuH76UEzuAFokzMRyp5MekQ0mkwOIpXFGnO+Y7J2wLtNuVAEPviD7+gf+dHYUYG2.tcgLb6zGd40Qtzf97i4rtcgpOxDv3AJdn5XBw7mlTn2piI1in..Ox4IkzW2MJ.JFay9PQkJUSFJhPoTGx4I0krMTZkCb9Q4zSpUQW0pKcuF78pTtg8XCCLMmUdqOFkWETWQJ6LSoh7zP+d9ghxOH94aeEJ+vHp9BpeTXLmYLyp0aQFji2F4VRrrHpgfWJPnb6aeNLN3zafd6hj0mZjLRHwEQETKe9SLcWUHeoL4Bk04lAYuAxY.E66ZGspry4Y9va6LQlnIaN7sWl2b.T8SS7pK69OdRMk3U6b.ydzyhMNqwltnme2y9w+crw4y4bLbP0QV6F0tC17kPGP7H3HxMd2uJehCiZS2t+y+5+8eEGc5.g0Ul89mt3hmLKILLpcyhL9PTaWGhxw8Zp1raNe+3pM6dC85mPs0yP8B0uVos3ahoXgcKjMeYM0mxBE9t2o9ulHyGVuVdY9j2+4ii+AjHBebGwHS3+w1H6wfTrkJdhHbx7G35S0+hKd+KkeQ+3RSih+.+4qTcxegmhOkwlL1o9X4Ws7k99Cd6jO7b83bQw2bf7lzHgV6GZU2kLxkwwIIUwoIpDjSEvizQbrSMmaA0jfZZ0fJxaEJwVAaQZmEtQocqhWosaocMJR9yZaYA3IVNjCLWsQbOEhj39xy0wcjaizQQS7oj9AErb46vr78oO6tlY2CFdGvth5T1M8NfUDrDTpNt6.15W1c0KqSfxWzEFesqiHneptqfaItA8Lv4nEyCGN50JMuDkxhylt69RvRVuL2O2BS2kOM4qkdZuqt2FIE42m.rzj39CfeSnp5WELHtiCF7DkH4gnuFeFQ9nPjRimHa2gE5asKAN9lPVUcd7rPBl5mEx91b.BGFhoQArH3LxZq7H8stde0I79zrCWQJynDr2N.6oMtGTKg355DAyhLKFzNyJ0TnlRZ9e1PkspMA3Fm8irAlEORo0s56EQjdGU0mXJ400I+E3PGPuXOo3kKLcwKulWHSkaqWHycre7uYO7hLOnmkRvnJo51PxOOn5vgQy6f66wSnl00pIixRtX6Tk9ADHhP2tjrGSqHFZzRedbsBp4QcogxOV7rIKpdiebSEpudu3y1aIhGb+IcwDe7LkmpGOybGuy9Co4N1CEBYd+QS+GPPX70sjpaqe6022E0GbWrG9X6P1wwWmfHfwCjT.9lJeHnKgZJZaU03rQ+v.9PpmissytT4l35y5D+vYchOaVm3GMqS7im0I9Iy5D+zqehhJCh+rYB+DnBoVaq9X1lCOJuYYi+O9pxrwB
While making this, I wanted to add an input toggle so you can toggle between the two to compare more easily without having to drag cables, but then the weirdest thing: input toggle had both at the same value.
I also tried plugging peak into an add node, and it's, again, reporting the same correct value.
It's only plugging the peak directly into the gain node that causes issues. Plugging it into any other node first that can then send that to a modulation target results in the correct value in the gain node.
So the peak -> gain interaction is weird.
It's not just display, the 400db gain in the screenshots above is FUCKING REAL. I have the limiter in the snippet, too.
EDIT: I updated the snippet to have the smoother and correct value plugged into gain. DO NOT disable the limiter on the master FX if you don't have one on your system.
The peak node interacts with the min and max and skew properties of the gain knob in the gain node, instead acting as a factor, where first converting it the actual value using smoothed_parameter_unscaled or any other such node which can send a modulation signal to target results in a correct raw value being sent to the gain knob instead.
So peak -> gain scales the gain knob based on its min, max, scale properties. Peak -> others is correct (i haven't tested all).