DoF doesn't always work as it should?

[pgatsky]

Brilliant thank you aoktar.

[aoktar]

Take a look to this new build. DOF picking improved with a better selection.
viewtopic.php?f=85&t=74130

[pgatsky]

Hi all

Thinking that this had been resolved I was wrong. As you can see from the screen shots and attached file im still having problems with dof in octane. On one of the screen shots you'll see that ive also added a null to indicate where the focal point should be but it still doesn't work. I think this is bug in the software as its an intermittent issue, or otherwise Im hoping that someone can shed some light on this file and let me know what im doing wrong.

Thanks

PG

[frankmci]

I'm not sure what it is, but you seem to have borked your scene file somehow. Even brand new cameras with a zero aperture can't focus properly. If you copy/paste everything into a new scene, it should work properly.

[pgatsky]

Thanks frankmci.

Yeah thats how I have to get round the problem every time, its bizarre. I honestly dont know how its doing it cause its happened now a couple of times which is why i wonder if its a bug? The file can be working correctly one minute then it can just happen and not sure whats triggering it but as you say even adding a brand new camera doesn't fix it.

Maybe if any of the dev people at OTOY are seeing this message then perhaps then can delve into the file ive uploaded and see if there is a reason why this is happening? As you suggested too the only way to get round it is to copy all the parts into a new file which corrects the problem.

PG

[frankmci]

I went back to look at your scene again. The problem is that the Filter Size in your Direct Lighting Kernel is set to 5 pixels. Usually 1.2 -1.5 is plenty.

I know how frustrating it can be when you keep overlooking that one little checkbox or setting somewhere.

[aoktar]

I went back to look at your scene again. The problem is that the Filter Size in your Direct Lighting Kernel is set to 5 pixels. Usually 1.2 -1.5 is plenty.

I know how frustrating it can be when you keep overlooking that one little checkbox or setting somewhere.

Nice! I don't think there's mysterious problems for DOF selections with the latest build. It has improved pick point selection for complex cases. I'm still improving picking operation for material/copy/paste/drop operation in LV.

[pgatsky]

Thanks guys for your responses very helpful.

So the direct kernel setting can have that impact then if set too high? I'll bear that in mind in future though so thanks for highlighting.

Ive just updated to the new 2020 version as saw a vid the other day showing the improvement in the dirt node which is also something I was looking at although not related to this issue at all.

Aoktar - You recommend that I try the new 2020 version and gave me a link to the downloads. It mentions that this version shouldn't really be used for production purposes so I just wanted to check to see if the stability is still an issue? Or do you think its now at a place where it should be the main source for downloading?

[frankmci]

Thanks guys for your responses very helpful.
So the direct kernel setting can have that impact then if set too high? I'll bear that in mind in future though so thanks for highlighting.

Yes, think of the Filter Size as a blur filter with a radius of X pixels. It's really just to help eliminate some subtle aliasing artifacts, like on sharp edges with strong specular highlights, or funky moire patterns on a window screen, that sort of thing. That's why you only need it to be a little over 1 to soften those blocky edges. The default is 1.2. When in doubt, there's a "reset" option under Settings, as well as Presets, where you can save your favorite configurations.