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Old 07-10-2019, 10:29 AM   #1
RCJacH
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Default Quick Question: What's the formula for the envelope curve (with tension) in REAPER?

This might be really basic. I'm trying to look for tension formula for tension of a linear line curve for envelopes in jsfx.

The common linear curve is distance/range, and I used (distance/range)^power to add tension.

However, the linear curve in REAPER looks a bit different:
Reaper Linear:


Max tension:


Min tension:



While with the linear ^ power:
Max tension:


Min tension (which looks weird):



Thus my question is, what would be the formula to create a curve with tension which is used for envelopes in REAPER?
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Old 07-19-2019, 02:20 PM   #2
juliansader
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REAPER uses a Bézier curve, not a power curve, but I don't know how neighboring points affect the curve: Formula for Bézier curves (question for the devs).
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Old 07-20-2019, 02:43 AM   #3
Vagelis
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Default

Quote:
Originally Posted by juliansader View Post
REAPER uses a Bézier curve, not a power curve, but I don't know how neighboring points affect the curve: Formula for Bézier curves (question for the devs).
Oh, so is this the reason why this is happening ?

https://forum.cockos.com/showthread.php?t=221391

If so, too bad because it's not a desired behaviour.
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