A Cinema 4d Bug ! Or A Stupid User ?

[lllab]

well, it is a limitation.

the problem is that cinema handles alpha the same as transparency, which leads to big problems with alpha clipped geometry.

it also happens to my with clipped tree textures all the time.
also it does not seperate transpareny and reflection, another big problem for me.
when things should reflect but should not be seen behind glas or trees.

i sent this more than once to maxon already, but until now no change.

i really hope maxon sometime realises that this is a big problem for some users(it really depends on what you are doing.

cheers
lllab

[basilisk]

This is probably my biggest problem with Cinema at the moment - limitations of alpha channels in textures. This also affects depth renders. If I make a scene with alpha mapped trees, the depth render ignores the alpha channels making it useless for depth of field blurring or fogging.

[wuensch]

biggest annoyance with alphas i have is that they dont render properly as masks in Multi Layer, thats why I use 100% transparecy instead of alpha when it is important (and add additional transparency in a layer shader if needed.

---but also be aware that c4ds handling of Alphas has advantages:
they cast soft shadows (something that is absolutely not waht every renderer does, try it with Max to see--)

Olli

[neosushi]

The only thing i heard from Maxon was :

This is no Error, that's the way the feature works.


non more non less. Kind of weak information. I expected a workaround for this thread :(
So working with 100% transparency will do fine with some models, but i guess not with trees in an architecual viz. :(

I hope they fix that soon, and hopefully they fix the DOF-Channel in Multipass to (I mean the depthmap :)) So you can get into post work with After FX or something.

Cheers
::neosushi::

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