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db4tech
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Re: Simulate sun position and lights/shadows

I've still not managed to get a slightly shiny floor yet.

Here is how the same scene renders with the 3 different shaders.

For reference. Normal Advanced photo render version 1.2 (Shiny shader)


Phong shader


Uber shader


Uber shader seems to be badly affected by the room ceiling light, the problem disappears if the ceiling light is turned off (Emmanuel is this with Importance sampling turned on?) Phong shader is slightly affected by the ceiling light.

Here are my findings so far (apart from the floor) with Phong and Uber shaders all items that should be reflective are even more reflective, notice the knobs on the unit and strangely the curtains?

Apart from the obvious ceiling light issues, both Phong and Uber shaders render all lights used in a scene with a brighter intensity than Shiny shader, Phong slightly brighter and Uber very brightly, notice the window frame and chair reflecting brightly the lights illuminating the scene placed behind the virtual visitor.

Render speeds:
Shiny shader is the fastest
Phong and Uber about the same, sometimes Phong was faster, other times Uber was, it was too close to call without carrying out some accurately timed renders.

More tests to follow.
db4tech
[May 22, 2010, 2:23:36 AM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
hansmex
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Re: Simulate sun position and lights/shadows

db4tech:

Could you make your file available? I would like to do some tests on exactly the same file as you are using.

Hans
----------------------------------------
Hans

new website - under constuction
hansdirkse.info
[May 22, 2010, 8:42:13 PM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
db4tech
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Re: Simulate sun position and lights/shadows

Hi Hans,

Yes of course, it isn't a fully designed house or room, just a quick purposely built model for this test.

db4tech
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Attachment Reflection test room.sh3d (729940 bytes) (Download count: 2197)

[May 23, 2010, 4:31:19 AM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
hansmex
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Re: Simulate sun position and lights/shadows

Gentlemen:

It works. I get exactly the same results.

Hans


----------------------------------------
Hans

new website - under constuction
hansdirkse.info
[May 23, 2010, 9:50:24 AM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
fhoofman
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confused Re: Simulate sun position and lights/shadows

To db4tech and other interested testers,
Here are two temporary plug-ins that will let you test SunFlow's Uber and Phong Shader:
http://www.sweethome3d.com/plugins/AdvancedRendering-PhongShader-1.3.sh3p
http://www.sweethome3d.com/plugins/AdvancedRendering-UberShader-1.3.sh3p
These plug-ins create two new menu items in Tools menu, so you can distinguish them from each other.

To change the shininess of an object, you'll have to play with the shininess value and the specular color stored in the Ns et Ks parameters of its MTL file. If you're patient enough, try to render different existing homes in the galeries, and give us your opinion.

Please don't link these files in an other document, because I'll probably delete them once we decide which track to follow.



mr Puybaret, i tried your http://www.sweethome3d.com/plugins/AdvancedRendering-PhongShader-1.3.sh3p
http://www.sweethome3d.com/plugins/AdvancedRendering-UberShader-1.3.sh3p

and then my render become weird. unlike normal as the picture you mention above. and the i choose "tools => create advance photo".
the render still weird.
can you help me?
[May 23, 2010, 10:58:11 AM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
hansmex
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Re: Simulate sun position and lights/shadows

fhoofman:

Can you show us the pictures of your renders?

Hans
----------------------------------------
Hans

new website - under constuction
hansdirkse.info
[May 23, 2010, 11:02:22 AM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
fhoofman
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Re: Simulate sun position and lights/shadows

you can see at
http://images.fhoofman.multiply.com/image/1/p...Rik8fA&nmid=338466826

it should be normal rendering when I choose "tools => create advance photo"

by the way mr puybaret, search box at right corner at website, does it work? because I don't see how it work.
I'm using firefox 3.6
thax so much
[May 23, 2010, 11:31:17 AM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
Puybaret
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Re: Simulate sun position and lights/shadows

I don't see any problem with your equirectangular/spherical image. I viewed it with Panini with no problem, except its low resolution doesn't give wonderful results.

Thank you for reporting the problem in the search box. Last update of the search engine seems to have failed. I updated it again and it works correctly now.
----------------------------------------
Emmanuel Puybaret, Sweet Home 3D creator
[May 23, 2010, 4:20:17 PM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
fhoofman
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Re: Simulate sun position and lights/shadows

I don't see any problem with your equirectangular/spherical image. I viewed it with Panini with no problem, except its low resolution doesn't give wonderful results.

Thank you for reporting the problem in the search box. Last update of the search engine seems to have failed. I updated it again and it works correctly now.


that's what I mean. the result equirectangular/spherical image should work when I choose "tools->create advanced photo phong shader"

but when I choose "tools => create advance photo" (the regular one), it stills show equirectangular/spherical.

I want the regular one.
[May 23, 2010, 4:30:42 PM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
fhoofman
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Re: Simulate sun position and lights/shadows

I keep embarrassed my self. I should choose the right "lens"
I'm so sorry. everything is so new with me
[May 23, 2010, 4:34:28 PM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
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