barcelona chair

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Janusz Biela
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barcelona chair

Postby Janusz Biela » Sat Sep 17, 2016 6:44 pm

How to start VPR in QMC mode:

1. Open scene and run K3VPR by pressing Kray3CmdPvRaytracing
2. You should get this image (this is not Global Illumination - scene shows us direct light only but still this is QMC sampling):
VPR_start.png


3. Press Kray3CmdBuildGI - K3 will start shooting photons in PhotonMap system, it means everywhere.
4. After calculating photon map, Kray will automatically start render in QMC system.
5. You can move/rotate camera everywhere without shooting photons again. You can change resolution or camera multiplier.

K3 temporary script menu:
kraymenu.7z
(244 Bytes) Downloaded 89 times


Scene:
barcelona.7z
(13.61 MiB) Downloaded 88 times

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Janusz Biela
Posts: 4005
Joined: Mon Mar 13, 2006 10:39 am
Location: Finland
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Re: barcelona chair

Postby Janusz Biela » Sat Sep 17, 2016 6:52 pm

If you want see technical parameters of photon map in scene:

1. Press ctrl+q in Layout and choose: Kray3AdvancedQuality:
ScreenShot198.png


after that change Final gathered to decided selection, for example: Precomputed
You can check other systems (Diffuse Model) for example Ambient Occlusion or even switch VPR to pure Path Tracing.

User avatar
Janusz Biela
Posts: 4005
Joined: Mon Mar 13, 2006 10:39 am
Location: Finland
Contact:

Re: barcelona chair

Postby Janusz Biela » Sat Sep 17, 2016 7:06 pm

If you want render in full mode.

1. Load scene
2. Press ctrl+q and choose Kray3Override
ScreenShot199.png
ScreenShot199.png (13.74 KiB) Viewed 1184 times

and simply disable plugin.
3.Kray3VPR still has no photons so for calculate them press: Kray3CmdBuildGI

There will be no so big changes because scene is very basic, this is even not interior, render is very close to raytracing system.
Calculation photons can take 2 min because I setup very extreme amount of photons.
That simple scene better render in Path Tracing because there is almost nothing to calculate.
Here .lws with fast shooting phase photon (higher resolution of GI and less photons):
barcelona_High_GI_resolution.7z
(6.68 KiB) Downloaded 85 times


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