Thin plastic chair - Ghost = How?

[cecofuli]

Thanks: patoaltaco. But, again, soft, SOLID, shadows  =(
They make the rendering so unrealistic...

[cecofuli]

And, how can we fake a transparent shadows!!  XD Impossible!

hard fake: image with ground and 2sided shadows + image with chairs only (with alpha) in photoshop ... like this ;)

Ehh.. ok, this is a very easy scene. But... try to think with a complex interior... Brr... :/

[Polymax]

I think a solution would be, well, later. While for these tasks using a another renderer(vray, mental ect) (.

[cecofuli]

=(

[Polymax]

Or ask Ondra to make a option for choice type of shadow(thin mode shadow) for solid glass ;), but this is fake, so us need to very ask :)

[cecofuli]

Mmm.. not bad idea )))

[Chakib]

here is my test :

[Polymax]

Other caustic from bottle, 2 CoronaLight + HDRI. In interiors this is working in most cases.

[cecofuli]

How is the model? With thickness?  And the shader? Try with only one little rectangular light, without and HDRI or environment GI and see what happen.

[Ondra]

The shadows get more opaque the more sharp the lighting is. This is done automatically to reduce fireflies, you can increase the max sample intensity parameter to get more opaque shadows (although with more fireflies). Or you can use bidir, or fake it ;)

[cecofuli]

 Keymaster, as Polymax wrote, can you make a option for choice type of shadow(thin mode shadow) for solid glass?
Or do you have some idea for the next update in progressive or Bidif method?
I don't want to switch to VRay for this project...

[Polymax]

Try with only one little rectangular light, without and HDRI or environment GI and see what happen.

I try(MSI=200):

[cecofuli]

Not bad, but in my chair scene, with 200 MSI, I have again solid shadows...  =(

[Polymax]

With Corona Sun this is not working ((

[cecofuli]

I saw. Anyway, in your test, the shadows are too solid, dark and unrealistic for a glass objects =(