3 ms·
> What intuition should a layperson have to suggest that obviously opacity/transmissivity is multiplicative? My intuition is that if I put on dark sunglasses I
by riversflow 5y ago
> What intuition should a layperson have to suggest that obviously opacity/transmissivity is multiplicative?
My intuition is that if I put on dark sunglasses I can still see through other dark things (like a CD or welders glass) if I look at something bright enough (like the sun). If opacity/transmissivity is modeled like it works in real life, given this example, it follows that it wouldn't be additive.
- nerdponx 5y agoThat's a great point, and it illustrates the problem with the mental models of uneducated people. It's difficult to know what information should and shouldn't be part of the model! I figured it just didn't work like real life, because RGBA numbers are clamped.