Timeline for Why does the shadow pass not account for mesh lights?
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
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| Apr 15, 2015 at 7:10 | comment | added | gandalf3 | In case anyone else is reading at this point, caustics are disabled on lamps which don't have multiple importance sampling enabled. | |
| Dec 28, 2013 at 8:50 | comment | added | Gunslinger | The scene is lost in the fog of time. I'm pretty sure I didn't disable caustics, otherwise the first scene wouldn't have them. But I must have done something wrong. Don't know what or why. | |
| Dec 27, 2013 at 23:29 | comment | added | gandalf3 | I have found that lamps do have caustics, see this .blend. Perhaps this was/is a bug or you might have had caustics disabled? | |
| Dec 10, 2013 at 20:28 | vote | accept | gandalf3 | ||
| Dec 27, 2013 at 23:26 | |||||
| Dec 10, 2013 at 20:26 | history | edited | Gunslinger | CC BY-SA 3.0 |
improved answer with some facts and a bit speculation
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| Dec 10, 2013 at 8:01 | comment | added | gandalf3 | But what is different about a mesh light that makes it so you can't separate shadows? Lamps (AFAIK) behave more or less the same way as mesh lights, (there are probably internal differences I don't know about, which is what I'm getting at) shining through refractive objects etc. It seems to me that if it's possible with an area lamp, it should work with mesh lights too. I don't understand why it's not possible with mesh lights. Could you explain? | |
| Dec 10, 2013 at 7:57 | history | edited | Gunslinger | CC BY-SA 3.0 |
added explanation
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| Dec 9, 2013 at 23:14 | comment | added | gandalf3 | Thanks, I never noticed that before.. But I'm wondering why this is. What is different about how mesh lights are calculated that makes it impossible to use in the shadow pass? | |
| Dec 9, 2013 at 22:34 | history | answered | Gunslinger | CC BY-SA 3.0 |