simple blender tests
simple blender tests
Hey Dudes!
As u might know i'm still trying to get rid of Blender and Blendigo so i have got to test and experiment a lot! i just want to show u some results... nothing really awesome or whatever...
As u might know i'm still trying to get rid of Blender and Blendigo so i have got to test and experiment a lot! i just want to show u some results... nothing really awesome or whatever...
- Attachments
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- caustics.jpg (73.26 KiB) Viewed 4473 times
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- manuzimmer.jpg (52.02 KiB) Viewed 4473 times
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- spaltung.jpg (84.38 KiB) Viewed 4473 times
- drBouvierLeduc
- Posts: 412
- Joined: Wed Oct 11, 2006 2:32 am
- Location: france
Hi Labello,
Room design from the second one is nice.
But the caustics from the three one, really interesting!
Could you please be so kind to share the materials and light properties?
I have migrated from 3dsMax to Blender (hard process by now ) and still can't produce caustics like image three...
Thanks for your help,
J.
Room design from the second one is nice.
But the caustics from the three one, really interesting!
Could you please be so kind to share the materials and light properties?
I have migrated from 3dsMax to Blender (hard process by now ) and still can't produce caustics like image three...
Thanks for your help,
J.
@JaMon:
At first there should be mentioned that transparent materials are influenced by the global world scale very much. the bigger your models are the less transparent the become, because the light has got to make a longer way through the material =)
i also attached another test with some really crappy materials^^ 900 samples/pixel and still noisy...^^
At first there should be mentioned that transparent materials are influenced by the global world scale very much. the bigger your models are the less transparent the become, because the light has got to make a longer way through the material =)
The light is just a light emitting sphere^^<medium>
<name>Material</name>
<precedence>10</precedence>
<basic>
<ior>1.60838</ior>
<cauchy_b_coeff>0</cauchy_b_coeff>
<absorption_coefficient_spectrum>
<rgb> <rgb>0.237931 1.22445 0</rgb>
<gamma>2.2</gamma>
</rgb> </absorption_coefficient_spectrum>
</basic>
</medium>
<material>
<name>Material</name>
<specular>
<transparent>true</transparent>
<internal_medium_name>Material</internal_medium_name>
</specular>
</material>
<medium>
<name>Material.002</name>
<precedence>10</precedence>
<basic>
<ior>1.60838</ior>
<cauchy_b_coeff>0</cauchy_b_coeff>
<absorption_coefficient_spectrum>
<rgb> <rgb>0 0.0926966 1.77594</rgb>
<gamma>2.2</gamma>
</rgb> </absorption_coefficient_spectrum>
</basic>
</medium>
<material>
<name>Material.002</name>
<specular>
<transparent>true</transparent>
<internal_medium_name>Material.002</internal_medium_name>
</specular>
</material>
<medium>
<name>Material.001</name>
<precedence>10</precedence>
<basic>
<ior>1.60838</ior>
<cauchy_b_coeff>0</cauchy_b_coeff>
<absorption_coefficient_spectrum>
<rgb> <rgb>1.22681 0.909605 0</rgb>
<gamma>2.2</gamma>
</rgb> </absorption_coefficient_spectrum>
</basic>
</medium>
<material>
<name>Material.001</name>
<glossy_transparent>
<exponent>1e+06</exponent>
<internal_medium_name>Material.001</internal_medium_name>
</glossy_transparent>
</material>
i also attached another test with some really crappy materials^^ 900 samples/pixel and still noisy...^^
- Attachments
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- zahn.jpg (62.41 KiB) Viewed 4249 times
Hi Labello and BBB,
thanks a lot for share the materials and the tips about the size of the objects an light.
I think that it is my main problem with the renders; normally I'm using Blender "Sun" light or big emitter with big objets and I didn' obtain good/nice renders.
Can I ask you a couple of questions?
When you press "n" in blender to show the transform properties, if I have a Dim X / Y and Z for example of 0.005, Does this means 5 mm?
I have obtained better renders using a sphere emitter of this side...
Cheers,
JaMon
thanks a lot for share the materials and the tips about the size of the objects an light.
I think that it is my main problem with the renders; normally I'm using Blender "Sun" light or big emitter with big objets and I didn' obtain good/nice renders.
Can I ask you a couple of questions?
When you press "n" in blender to show the transform properties, if I have a Dim X / Y and Z for example of 0.005, Does this means 5 mm?
I have obtained better renders using a sphere emitter of this side...
Cheers,
JaMon
On scale, you'll have to ask one of the blender experts. I seem to remember one Blender unit by default is one meter in Indigo (which I guess would make the Blender standard plane 2x2 meters).
Regarding your emitters, I would avoid a sphere. It's always faster to make your emitters as basic as possible. A simple plane most of the times. Otherwise you'll be shooting lots of un-needed rays all over the place and that will slow you down.
sunlight caustics work fine but they're also slow to show up.
Also, check CoolColJ's test thread for good renderer settings for caustics.
Regarding your emitters, I would avoid a sphere. It's always faster to make your emitters as basic as possible. A simple plane most of the times. Otherwise you'll be shooting lots of un-needed rays all over the place and that will slow you down.
sunlight caustics work fine but they're also slow to show up.
Also, check CoolColJ's test thread for good renderer settings for caustics.
I have got a question regarding exitportals.
is recreated the scene with the room and rendered all the time without exitportals and hat 25.000 samples/second.
Then i remembered to add exitportals to improve the renderspeed. now i have got just 15.000 samples/sec but the image does really get clean much faster. even with less samples. is this normal that the samples/sec decrease when i add exit-portals?
is recreated the scene with the room and rendered all the time without exitportals and hat 25.000 samples/second.
Then i remembered to add exitportals to improve the renderspeed. now i have got just 15.000 samples/sec but the image does really get clean much faster. even with less samples. is this normal that the samples/sec decrease when i add exit-portals?
Entirely normal:
One one hand, exit portals are slower to calculate (which you can see in the sample count) but on the other hand, Indigo doesn't need to randomly scatter light over the whole Indi-world; It can clamp out unnecessary parts and concentrate on those, important for your scene. This makes your scene render a lot faster
You'll notice same effects for BiDir, in most cases
One one hand, exit portals are slower to calculate (which you can see in the sample count) but on the other hand, Indigo doesn't need to randomly scatter light over the whole Indi-world; It can clamp out unnecessary parts and concentrate on those, important for your scene. This makes your scene render a lot faster
You'll notice same effects for BiDir, in most cases
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