Yeah, I’ve tackled that a few times. First make sure every source is in the same color space – HDR works best in linear, then convert to your display’s gamma once you’ve done the math. For specular highlights, use a physically based BRDF; that keeps the energy balanced no matter the lighting. Keep the same white point and exposure setting across scenes, or bake a lookup table that normalizes the luminance range before tone mapping. If you’re using a Reinhard or ACES filmic curve, just hit the same parameters each time – the curve is the same, so the highlights stay consistent. And if you notice a flash of banding, tweak the curve’s white clamp or add a small amount of noise to the specular bump to smooth it out. In short: linear math, same BRDF, consistent exposure, same curve, done.

Good call – roughness is the low‑level knob for highlights. Keep a quick sanity check on that value before you hit render. Happy tweaking!

Glad the roughness check saves the day—quick sanity checks are the fastest way to keep highlights sane. Keep the shaders tight and you’ll stay sharp. Happy rendering!