tree Translucency

[Alex Abarca]

Impressive Maru' thank you for showing, I have to try this. Can you show me your slate view?

[maru]

Here. And don't look at reflectivity map. It's probably close to useless. Good diffuse and translucency maps and values are the key here.
You can download the model with textures from here:
http://www.viz-people.com/free-stuff

[Ludvik Koutny]

I know this is completely unrelated, but why don't you instance that bitmap node instead of having it there 4 times? :D

[maru]

Hah, there is no real reason, that's because I was doing it very quickly and dirty. :)

[Alex Abarca]

Its look Awsome Maru, just like in the movies http://img2.tvtome.com/i/u/4590d3ec9f3442bbc2886089f36c2dc7.jpg

 I am going to try this can you show me your slate view, please.

Thanks!

[Ondra]

Hah, there is no real reason, that's because I was doing it very quickly and dirty. :)

You can save a LOT of time by instancing maps as much as possible in shadertrees and different slots of a single material.

[Alex Abarca]

Hah, there is no real reason, that's because I was doing it very quickly and dirty. :)

You can save a LOT of time by instancing maps as much as possible in shadertrees and different slots of a single material.

That's Ok, I totally get it. The params are the magic.

[Alex Abarca]

Here what I got so far. What do you guys think?

I'm going to go download the free trees and test maru's material worlflow now.

I am missing some parameters, guess I need the dailybuilds.

[romullus]

You're doing this mistake again. Tree leaves doesn't need refraction. By puting map in this slot, you hurting both, material believability and render time. Don't do this.

Edit: btw, if that map structure for translucency slot, you borrowed from my scene, you may want to replace it by something else. I did it in hurry and i don't think it's suitable in this situation. I feel guilty for this :]

[Alex Abarca]

You're doing this mistake again. Tree leaves doesn't need refraction. By puting map in this slot, you hurting both, material believability and render time. Don't do this.

Edit: btw, if that map structure for translucency slot, you borrowed from my scene, you may want to replace it by something else. I did it in hurry and i don't think it's suitable in this situation. I feel guilty for this :]

You are right bro! Thanks for catching that. It reduced the render time, and it looks good. Ok, I'll replace the map in the translucency.

[racoonart]

You can save a LOT of time by instancing maps as much as possible in shadertrees and different slots of a single material.

How is that technically? What are the drawbacks of non-instanced but identical bitmap maps? I never really thought about it since I try to instance as much as possible but is each non-instanced bitmap loaded separately into RAM (I can hardly imagine that) or is it just the internal overhead that is produced by multiple bitmap loaders?

[Ondra]

You can save a LOT of time by instancing maps as much as possible in shadertrees and different slots of a single material.

How is that technically? What are the drawbacks of non-instanced but identical bitmap maps? I never really thought about it since I try to instance as much as possible but is each non-instanced bitmap loaded separately into RAM (I can hardly imagine that) or is it just the internal overhead that is produced by multiple bitmap loaders?

Each map is not loaded into RAM separately, but each map is sampled separately if they are not instanced. 3dsmax actually has a caching mechanism implemented that allows reusing the first instance result for all subsequent ones. So instancing single map 4 times can make your shader evaluation 4 times faster.

[Alex Abarca]

How does this look now? I change the translucency map.

[Alex Abarca]

You can save a LOT of time by instancing maps as much as possible in shadertrees and different slots of a single material.

How is that technically? What are the drawbacks of non-instanced but identical bitmap maps? I never really thought about it since I try to instance as much as possible but is each non-instanced bitmap loaded separately into RAM (I can hardly imagine that) or is it just the internal overhead that is produced by multiple bitmap loaders?

Each map is not loaded into RAM separately, but each map is sampled separately if they are not instanced. 3dsmax actually has a caching mechanism implemented that allows reusing the first instance result for all subsequent ones. So instancing single map 4 times can make your shader evaluation 4 times faster.

yep, yep.

[romullus]

I think it's time to introduce front/back map to you. Right now, sun facing sides of your leaves, have way to much translucency, while back faces looks ok.