Indigo 1.0.6

psor · Post by **psor** » Thu Jan 24, 2008 9:55 am

@dougal2

I already had a talk about this with Nik yesterday. It's the Mitchell-Netravali
filter, so change it to Gaussian! ;o))

Change ...

Code: Select all

"splat_filter" "mn_cubic"

... to:

Code: Select all

"splat_filter" "gaussian"

I asked Nik to expose the parameter for the Mitchell-Netravali filter, so we
have full control over the ringing ... he's thinking about it.

edit: It gets obvious if you see directly into the sun.

take care
psor

dougal2 · Post by **dougal2** » Thu Jan 24, 2008 10:04 am

ok, i though it was, btu wanted to make sure.
/me switches back to gaussian

Kram1032 · Post by **Kram1032** » Thu Jan 24, 2008 10:08 am

psor wrote:It gets obvious if you see directly into the sun.
psor

Does it?
Though, I think, the eye has more something like a sine-filter:

Bit ok, as MN is a simple single-waved sine with smaller amplitude, it might be close

psor · Post by **psor** » Thu Jan 24, 2008 10:19 am

*sigh*

@Kram

Don't try to be a smart ass dude! Do some tests and proof what you're
talking about ...

example 1 (mn_cubic):

example 1 (gaussian):

And now, come on mate, ... guess what happens here?! Hint, ... gaussian filter used.

example 2:

example 3:

take care
psor

Kram1032 · Post by **Kram1032** » Thu Jan 24, 2008 10:25 am

hum... actually the sun already showed problems with gausian...
If you pointed the camera straight at it without a scene around, you where able to see a black frame...

But ok, I know what you mean...
Interesting how the sampling type affects the aperture diffraction.... box seems to be pretty useless with glare... gaussian looks nice and MN *might* look nice when converged to less noise...
Interestingly, the noise looks very blurry with gaussian... or is it due to the heavy jpg compression?

psor · Post by **psor** » Thu Jan 24, 2008 10:31 am

I would say the blur comes because of the gaussian filter. And I added
an example to show that there is no problem with the sun and gaussian.

And not the sampling type is affecting the diffraction, but something else.
I'll give you some more time, ... maybe you could try it yourself, hehe!

Take it as a quiz ... lets see how long it takes.

take care
psor

Kram1032 · Post by **Kram1032** » Thu Jan 24, 2008 10:39 am

so you simply changed the aperture. Ok. I already wondered...
Btw: When Ono added those filter types, he wrote, that MN might be a little bit BLURRIER than Gaussian...
Strange as it actually should have more contrast, but when you look at the single pixels (as long as you only can see randomly spread noise), it seems indeed that the MN-filter is blurrier...
On the final image, that might be the other way round...

psor · Post by **psor** » Thu Jan 24, 2008 10:43 am

Kram? Mate? Don't do your usual guesswork ... fire up blender and Indigo
and find out what is going on under the hood!

*husch*husch* ... noch immer da? ;o))

p.s. Du weisst doch --> Grau, teurer Freund, ist alle Theorie.

take care
psor

filippo · Post by **filippo** » Fri Jan 25, 2008 1:51 am

wonderfull work.....
filippo

Kram1032 · Post by **Kram1032** » Fri Jan 25, 2008 4:37 am

Oh, I like guess work

Though, yesterday I was really tired...

blendergat · Post by **blendergat** » Sat Jan 26, 2008 5:20 am

what were your settings for this? to get the sun like that? plz

example 2:

CTZn · Post by **CTZn** » Mon Jan 28, 2008 9:37 am

Salutations Ono, thank you !

psor · Post by **psor** » Mon Jan 28, 2008 9:47 am

@blendergat

Sorry I missed your post. I used an aperture map which was looking like this ...

... or this ...

You can also use the generated aperture by Indigo, just play with it!

nb: Have a look in the Indigo v1.0.4 announcement to understand how to use it.

take care
psor

blendergat · Post by **blendergat** » Tue Jan 29, 2008 8:37 am

thnaks!

Zom-B · Post by **Zom-B** » Tue Jan 29, 2008 9:08 am

Hey Ono...

It seems there is a interesting Issue using Render Alpha with meshes having a Textures Color, Bump Map and exponent Map!

The attached Image is rendered with color+bump+exponent Map...
Is this a feature or a Bug ?

Something you can fix, or have the exporter writers disable texture export for Alpha render?!

**EDIT**
It seems this issue is also related to Mesh geometry, because even if I have no Textures on the mesh, there are still geometry boarders visible!

BTW: The Model is the HL2 EP2 Hunter

Indigo 1.0.6

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