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ill

Colored Stochastic Shadowmaps?

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I don't think it looks that good to be honest because it is not close enough to how real caustics behave. I would probably prefer ordinary shadow maps instead.

 

Edit: I'm referring to the video. Some of the examples in the paper look a bit more convincing.

Edited by Chris_F
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I just noticed at about :15 seconds in the shadows inside the little tube things didn't look too good.  I think the purple shadows from the purple pipes and blueish shadow from the fence look really nice, although I'm really confused how that red shadow in the beginning is cast by that purple tank.

Edited by ill
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I remember seeing this a few years ago and dismissing it as being too expensive (2-4x memory use, and larger filters required)... but my current project has a lot of layers of translucency, and GPUs can now deal with the bandwidth requirements for this... so I might give it a go and see how it looks cool.png

 


I don't think it looks that good to be honest because it is not close enough to how real caustics behave.
It doesn't model caustics at all, so anything that looks like caustics is just an artefact of the filtering ohmy.png

Ordinary shadow maps are an apples-and-oranges comparison, because they don't support translucency at all.

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I remember seeing this a few years ago and dismissing it as being too expensive (2-4x memory use, and larger filters required)... but my current project has a lot of layers of translucency, and GPUs can now deal with the bandwidth requirements for this... so I might give it a go and see how it looks cool.png

 

 

 


I don't think it looks that good to be honest because it is not close enough to how real caustics behave.
It doesn't model caustics at all, so anything that looks like caustics is just an artefact of the filtering ohmy.png

Ordinary shadow maps are an apples-and-oranges comparison, because they don't support translucency at all.

 

Well, it is caustics (light passing through a transparent substance) without taking refraction into account. For paper thin objects it would be a close approximation, but for those giant colored tubes it fails completely and is IMO more distracting than an ordinary shadow.

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