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View Full Version : Rendering Experiment - Interesting Results



Northstarr
03-28-03, 09:11 PM
I made an interesting discovery while experimenting with transparency and layers. The final picture can be very different depending on the order the layers are rendered. These 2 pictures below are the same image, done with only 2 layers.
The background layer has a texture fill and the top layer has a series of 3D objects using the "intensity reflect shader" with only the transparency changed (to 100). Full lighting on each layer.

This image was rendered with the top layer first and the background layer second.

http://www2.zbrushcentral.com/uploaded_from_zbc/200303/user_image-1048914250owk.jpg

:: :: ::

This image was rendered with the background layer first and the top layer second.

http://www2.zbrushcentral.com/uploaded_from_zbc/200303/user_image-1048914484tkq.jpg

:: :: :: ::

It is kind of interesting so I thought I would share it. But if anyone knows why this happened, I would be very curious to know.

:)

drjjwow
03-28-03, 10:13 PM
thats a really awesome effect.. me likes. :tu: :tu: :tu:

pr0jectZ
03-29-03, 01:01 AM
looks realy awesome, I guess my question is where is the transparency setting found ? I've been looking for this layer function...

cameyo
03-29-03, 01:28 AM
Pr0jectZ:
The transparency setting are:
1) the transparency slider on some material and
2) Flatten Layer OFF (on Render Palette) to activate transparency
3) Best render to see the true effect
Sorry for any error.

Northstarr:
Interesting experiment... I think this (not tried): the different rendering depend from the value of Z of layers.
I'll try something this afternoon.

cameyo

Frenchy Pilou
03-29-03, 02:16 AM
Hi NorthStarr
Sweet candy or jelly cream :)
Pilou
Ps The color and the perspective of the background recall to me this (http://www.galeria.sonic.pl/DaliGal/Gal28/1965_01.htm)
"la Gare de Perpignan" is for Salvador Dali the center of the world :)

pr0jectZ
03-29-03, 05:41 AM
cool, thanks cameyo :D

Flycatcher
03-29-03, 06:01 AM
I shall be interested to see what explanation you get for this, Donna. I made the same discovery in version 1.23B and mentioned it in passing in one of my posts a couple of years ago. I got no satisfactory explanation at the time, but it is one of the reasons I hate using layers in this software. If I remember rightly, at least in 1.23B it depended not only on the order in which the layers were arranged on the palette, but also which layer had the focus at the time the render was made.

boozy floozie
03-31-03, 04:16 AM
Great effect Northstarr :tu: Certainly looks like it's a clipping mask phenomena.
Is there any baking involved in these?

Northstarr
03-31-03, 04:24 AM
Hey Boozie, no no baking at all. Just renderings in different order.

:)