How to control wetness/dryness of reverb without repopulating entirely?

[codingisnuanced]

The only explicit means of changing the reverb wetness/dryness is by repopulating the reverb structure with the same parameters but with different wet/dry values. This seems cumbersome for the computer. What am I missing?

[velipso]

If you look at the reverb.c code here:

		outL += er.L * rv->erefwet + input[i].L * rv->dry;
		outR += er.R * rv->erefwet + input[i].R * rv->dry;
		output[i] = (sf_sample_st){ outL, outR };

You can see that erefwet and dry are used at the very end.

So one way to change the wet/dry mix is to set those directly.

rv->erefwet = 0.5;
rv->dry = 0.5;

If you want to measure in dB instead of linear, then you can look at what sf_advancereverb is doing with erefwet and dry:

	rv->erefwet = db2lin(erefwet);
	rv->dry = db2lin(dry);

where db2lin is:

static inline float db2lin(float db){ // dB to linear
	return powf(10.0f, 0.05f * db);
}

The purpose of this library is to make the code easy to read. Don't be afraid of looking through reverb.c and following the variables. You might not understand all the magic math (I don't), but it should be accessible.