Indigo 1.0.4

[Big Fan]

kram and psor our friendly forum spammers...

[psor]

[Kram1032]

Hard to stop

[Roger]

Guess what. I got dof .

I scaled the scene down to like two inches, selected the object I wished to have in focus, made that the focal distance, lowered the f-stop to 1,4 and rendered . Dof .

Thanks for the discussion fella's.

[Kram1032]

Great

Now, to avoid precession errors due to blender, use the world scale factor instead It works just like scaling the scene but the precession in lower decimals doesn't get affected.

If you set the scene scale factor to 0.0508, you also have a 2 inches scene, when it was metres before

[Big Fan]

ok just for general interest here is a dof series just to show it works.. and with a world scale factor
bear in mind my blendigo is slightly different from the official one and shows a bit stronger blur

the focus point is the staple bending 'anvil' of the light grey one
...and yes I didnt render these very long, sorry...
the +- numbers are the calculated dof

you can see at close up distances even high fstop like f/44 numbers dont give that much dof - this is 35mm lens

maybe that helps someone

[Roger]

I've made a bedroom with Indigo 1.0.4 using an Exit Portal. It didn't worked for a long long time so I'm real happy with the result. So much quicker! Also used a diffuse transmitter material (using a blend material) for the first time. Is it possible to get more accurate shadow results using it? Now it's a perfect shadow in stead of like rimpled semi-shadows, see what I mean?

Click image to see a breakdown.
It's a nice hour render btw.

[Kram1032]

Hum... In that case, you might need to use real SSS...
Or, you do it with a tiny, highly tiled fabric texture, which shows the holes of the fabric... you can use it as an alpha map and blend the whole thing with that

[Roger]

Thanks for the reply Kram, but I don't get that to work.

Code: Select all

	<material>
		<name>ondoorzicht</name>
		<diffuse>
			<albedo_spectrum>
				<rgb>
					<rgb>1 1 1</rgb>
					<gamma>2.2</gamma>
				</rgb></albedo_spectrum>
		</diffuse>
	</material>


	<medium>
		<name>doorzicht</name>
		<precedence>10</precedence>
		<basic>
			<ior>1</ior>
			<cauchy_b_coeff>0</cauchy_b_coeff>
			<absorption_coefficient_spectrum>
				<rgb>
					<rgb>0 0 0</rgb>
					<gamma>2.2</gamma>

				</rgb>
			</absorption_coefficient_spectrum>
		</basic>
	</medium>
	<material>
		<name>doorzicht</name>
		<specular>
			<transparent>true</transparent>
			<internal_medium_name>doorzicht</internal_medium_name>
		</specular>
	</material>


	<material>
		<name>gordijn</name>
		<blend>
			<a_name>doorzicht</a_name>
			<b_name>ondoorzicht</b_name>
			<blend_factor>0.75</blend_factor>
			<blend_map>
				<path>01.jpg</path>
				<uv_set>uv</uv_set>
				<exponent>1.000000</exponent>
				<a>0</a>
				<b>1</b>
				<c>0</c>
			</blend_map>
		</blend>
	</material>

This is what I got. Am I doing it wrong?
----EDIT----
Never mind, I read the grass tutorial and saw I needed the Null material in stead of a transparant ior1 specular material. This is what I got. Pretty neat though you can see right through now, with curtains you can't, you can just see the shadows that fall on it from the other side.

Done with the checkers image. In top with low frequency tile, in bottom pretty high freq tile.

[Kram1032]

That's not the kind of map, you'd need
You need one, that looks like overlapping fabrics
The lower one has the correct frequency, I guess, but there are too many transparent parts.

[Roger]

I feel like I'm bumping the threat, but I'm using Indigo 1.0.4 so hey!

This is what I got using:

Thanks pal, works a lot better.

[BbB]

I would use this image but inverted. i.e. the negative, with a lot more dark than white.

[Kram1032]

I think, it'd get too transparent, then, BbB...
It already is quite transparent like that.. under circumstances, you'd need even less black parts, if you want to simulate a thicker curtain...

also a way to simulate further (though, in this case, for more transparency) would be a triple blend:

• diffuse
  +
• diffuse transmitter
  ___________________
  +
• NULL - with this alphamap

The diffuse map could even use that alphamap as a bumpmap

[Wedge]

Awesome work with the curtains!

[BbB]

I meant white as in transparent. I suggested it because I thought it was way too transparent. Now it depends where the null is in the blend relative to your map...