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No Caustics while using SphereLamps for soft shadows...

Sat, 30/05/2009 - 21:40 — dafassi
Project:YafaRay
Component:Blender Exporter
Category:bug report
Priority:minor
Assigned:Unassigned
Status:needs work
Description

Hi!

I was rendereing a glass-flower and wondered that i have caustics using the point light and NO caustics using the sphere light (for soft-shadows).

Seems, that caustics will be automaticly disabled by switching to spherelight.
Could you check this out please?

Greets,

Dennis F.

AttachmentSize
Flower.blend48.77 KB

Comments

Sun, 31/05/2009 - 09:29 — Samo

#1

In path tracing, area light types (area, sphere, mesh) need 'Make light visible' button enabled to shoot caustics photons.

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Sun, 31/05/2009 - 13:19 — dafassi

#2

But the caustics made by the point light are (very) more beautyful than the ones from spherelight.

An idea would be to have back that PHOTON-Lamp, that only send photons for caustics and have no shadows. So we could combine it with iE a spherelight.

So this should become a feature request.

Thanks!

 

I added one more attachement: a picture rendered with PhotonMapping. the only bad thing: Materials can´t send photons, so i had to use MESHLIGHT.

And this brought a bad shadow- where do this come from?

AttachmentSize
Softshadow.png 113.8 KB
NiceCaustics.png 107.68 KB
Sun, 31/05/2009 - 13:21 — dafassi

#3

AttachmentSize
Photonmapping_MeshLight.png 262.71 KB
Flower.blend 50.43 KB
Fri, 17/07/2009 - 05:05 — DarkTide

#4

Component:Code» Blender Exporter
Priority:normal» minor
Status:active» needs work

Ok i can confirm that seting pathtracing caustic method to "path+photon" does not throw caustics correctly you can use simply photon to get good caustics

i leave here an example

 

AttachmentSize
flower.png 83.23 KB
Flower.blend 220.37 KB
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