I noticed today that when lowering opacity on DAZ 4.3.1.16203 it lowers very little between each step between 1.0 and 0.5, then between 0.5 and 0.49 there is a huge change, and then again little change between 0.4 and 0.0.
Anybody else has this issue?
Opacity misbehaviour on DAZ 4.3.1.16203
- Marcel2586
- Posts: 442
- Joined: Sat Mar 05, 2016 7:42 am
Re: Opacity misbehaviour on DAZ 4.3.1.16203
I noticed this also, i think it has something to do with the grayscale.
this would be funny if it weren't happening to me 

Re: Opacity misbehaviour on DAZ 4.3.1.16203
Yes, I guess what we can do is to make a gray texture instead using the opacity button.
Re: Opacity misbehaviour on DAZ 4.3.1.16203
I tried using textures at 10%, 20% etc instead of the built in ones, but unfortunately the result is exactly the same. It is dark from 100% opacity to 50%, then suddenly turns very transparent at 40% and barely changes until 10%
There are a few more options using a texture and then changing the opacity option, but to define grades is a problem, have to try and see.
There are a few more options using a texture and then changing the opacity option, but to define grades is a problem, have to try and see.
Re: Opacity misbehaviour on DAZ 4.3.1.16203
No... saddly there arent other options. If you use a 60% map and then lower 1 point it will be the same as using just 50% on the opacity button; lowering 2 points it will be 40% and turns very transparent. So it changes anything.
Re: Opacity misbehaviour on DAZ 4.3.1.16203
Hmm, which render mode are we talking here, non-accelerated or accelerated?
/Sigstan
Re: Opacity misbehaviour on DAZ 4.3.1.16203
I just did a comparison render in CPU-No acceleration and CPU accelerated. There is a difference as can be seen here (Left bottom 0.1 - Right top 1.0):
Accelerated:
Non-accelerated:
Both ran for about 20 minutes using Bidirectional and Metropolis with same lighting.
In terms of gradual transition I think non-accelerated is the winner, although I agree with your observations.
But let's think about this in another way. Transparency is implemented by Reality as a "Mix" material that mixes the base texture with a null texture. The transparency number or the alpha map decides the blend. Since we are using the "Mix" material we can blend any kind of material, so if you tell me what kind of transparent material are you trying to emulate, then I might be able to give you a suggestion.
Accelerated:
Non-accelerated:
Both ran for about 20 minutes using Bidirectional and Metropolis with same lighting.
In terms of gradual transition I think non-accelerated is the winner, although I agree with your observations.
But let's think about this in another way. Transparency is implemented by Reality as a "Mix" material that mixes the base texture with a null texture. The transparency number or the alpha map decides the blend. Since we are using the "Mix" material we can blend any kind of material, so if you tell me what kind of transparent material are you trying to emulate, then I might be able to give you a suggestion.
/Sigstan
- Marcel2586
- Posts: 442
- Joined: Sat Mar 05, 2016 7:42 am
Re: Opacity misbehaviour on DAZ 4.3.1.16203
If i use no texture and only the percentage slider. and it makes no difference if it is accelerated or not.
this would be funny if it weren't happening to me 

- Marcel2586
- Posts: 442
- Joined: Sat Mar 05, 2016 7:42 am
Re: Opacity misbehaviour on DAZ 4.3.1.16203
When i did my tutorial on glasses with stains and the wooden table top. i used alpha maps on the geometry shells, and there it was sometimes difficult set the transparency in the right amount. Resulting in flipping back to Adobe photoshop to adjust the brightness and contrast. So i thought, it could be my screen that is to bright. But without textures it is also difficult to set it. This absolutely no fault of Reality in my opinion.
this would be funny if it weren't happening to me 

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