How to animate the opacity per Bongo?

[Micha]

Hi,

I would like to blend in and out objects during a Bongo animation. I use Rhino 6 and VfR4. If I set the Rhino material transparency, than the reflections stay visible. The transparency sliders acts as refraction slider. It looks like the only way is use a Rhino material without reflection, than the transparency slider works like expected. Is there a way to soft blend in and out rendered objects? Maybe there are new ways per Rhino7|VfR5?

-Micha

[slavcho.brusev]

Hello,

I don’t think this is possible with Bongo and V-Ray. However you can create fade animation in V-Ray and Grasshopper. Use the Current Fraction output(from the V-Ray Timeline component) and attach it to the Opacity input(V-Ray Simple Material). Everything else is like a regular animation in GH. I have attached an example gh file. FadeAnimation.zip

[Micha]

Oh, never I used Grasshopper and I setup a quite complex Bongo animation over the last days. Learning a new tool and skipping Bongo is no option. Looks like I need to look for another way for this animation.

Could be nice to get a solution for Bongo for the future. Sounds like a basic task - animated transparency.

(Another way for a workaround could be to get animated mapping widgets and animate a transparency gradient, so that the object fade in/out. But at the moment mapping can't be animated.)

[nikolay.bakalov]

Hi,

bongo only animates Rhino stuff, in this case you animate a Rhino material's transparency. Currently it is not possible to span the Bongo animation to the plugin stuff.

this is easily eachievable with GH, though. I think Bongo 3 API will allow more flexibility and it will be at least possible to do it.