Mozzarella, my first rendering

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pantich
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Joined: Thu Jul 31, 2008 5:18 am

Mozzarella, my first rendering

Post by pantich » Tue Aug 05, 2008 10:01 pm

Hi guys,
this is the first time I use Indigo, I'm trying to render a mozzarella, I've experimented with some settings and for a chance my plane became black and my mozzarella was right! :D (img 01)
Ok, I have to add some reflection.

But when I tryed to render my mozzarella with a white plane (I need a white plane) the result was a gray mozzarella (img 02).
I know is a camera exposure problem and I tryed to decrease the absorption gamma and increase the sss gamma but the result was different (img 03).

How can I obtain the result 01 with a white plane?
I tryed also to blend a self illuminating material with my sss material but I need to experiment again before to post.
Attachments
mozzaGamma.jpg
img 03 (gamma correction)
mozzaGamma.jpg (7.75 KiB) Viewed 2595 times
mozza02.jpg
img 02 (the white plane)
mozza02.jpg (7.13 KiB) Viewed 2595 times
mozza01.jpg
img 01 (I like this mozzarella)
mozza01.jpg (5.93 KiB) Viewed 2595 times

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PureSpider
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Location: Karlsruhe, BW, Germany
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Post by PureSpider » Wed Aug 06, 2008 12:41 am

Try changing your Tonemapping settings, switch from Reinhard to Linear or Camera.

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pantich
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Post by pantich » Wed Aug 06, 2008 12:58 am

PureSpider wrote:Try changing your Tonemapping settings, switch from Reinhard to Linear or Camera.
Thanks but i would obtain the result 01 only changing the material.
I would only make the material more white.

Tha material 01 code.

Code: Select all

	<medium>
		<name>mozzSSS</name>
		<precedence>10</precedence>
		<basic>
			<ior>1.1</ior>
			<cauchy_b_coeff>0</cauchy_b_coeff>
			<absorption_coefficient_spectrum>
				<rgb>
					<rgb>4.5 4.5 4.5</rgb>
					<gamma>2.2</gamma>
				</rgb>
			</absorption_coefficient_spectrum>
			<subsurface_scattering>
				<scattering_coefficient_spectrum>
					<rgb>
						<rgb>9 9 9</rgb>
						<gamma>2.2</gamma>
					</rgb>
				</scattering_coefficient_spectrum>
				<phase_function>
					<uniform/>
				</phase_function>
			</subsurface_scattering>
		</basic>
	</medium>
	<material>
		<name>mozzSSS</name>
		<glossy_transparent>
			<exponent>50</exponent>
			<internal_medium_name>mozzSSS</internal_medium_name>
		</glossy_transparent>
	</material>

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CTZn
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Location: Paris, France

Post by CTZn » Wed Aug 06, 2008 1:03 am

pantich wrote:
PureSpider wrote:Try changing your Tonemapping settings, switch from Reinhard to Linear or Camera.
Thanks but i would obtain the result 01 only changing the material.
I would only make the material more white.
Not quite, you can set the other tonemapping to the desired level for a given object (only reinhard is adaptative/dynamic); the ground plane will be burned out, likely.
obsolete asset

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pantich
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Post by pantich » Wed Aug 06, 2008 2:28 am

I'm afraid I didn't explain the situation correctly!

I would like to obtain a material that looks more white in the lighting conditions of img02.
In that image the plane is white, and the mozzarella should look just as white. Is it possible to make the mozzarella material look brighter tuning the material settings without changing the exposure or tonemapping?

Deus
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Joined: Sun Feb 04, 2007 3:47 am

Post by Deus » Wed Aug 06, 2008 5:23 am

That render is too cheezy for my taste ;)

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CTZn
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Location: Paris, France

Post by CTZn » Wed Aug 06, 2008 5:29 am

I think you could blend the material with some diffuse ? Make the plane darker (though, it may still appear white and won't dim the cheese anymore) ?
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pantich
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Post by pantich » Wed Aug 06, 2008 9:26 pm

I'm trying blendig some diffuse material and the result is more or less similar but not perfect.
Now I'm also trying changing some sss and absorption setting.
Indeed my plane now is only 80% white :wink:

Is it possible to use SSS with a diffuse material?

For example instead of this:

<material>
<name>mozzSSS</name>
<glossy_transparent>
<exponent>50</exponent>
<internal_medium_name>mozzSSS</internal_medium_name>
</glossy_transparent>
</material>


can I use something like:

<material>
<name>mozzSSS</name>
<diffuse>
<internal_medium_name>mozzSSS</internal_medium_name>
</diffuse>
</material>


or:

<material>
<name>mozzSSS</name>
<diffuse_transparent>
<internal_medium_name>mozzSSS</internal_medium_name>
</diffuse_transparent>
</material>

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CTZn
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Location: Paris, France

Post by CTZn » Thu Aug 07, 2008 1:27 am

Lol no you can't :D

Hey, what don't you get a milk material, it would be a good starting point !?
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pantich
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Post by pantich » Thu Aug 07, 2008 2:55 am

CTZn wrote:Lol no you can't :D

Hey, what don't you get a milk material, it would be a good starting point !?
I will try to start with milk, like in real life ;-)

Now I'm following two ways:
1) Diffuse + SSS without absorption
2) Diffuse + Diffuse Transparent.

I will post some rendering soon

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