Indigo Renderer Forum

Hi everyone!

I've just uploaded a fern leaf material. So now you can make, with a bit of organisation, beautifull green pictures like these:
Hope you like..

These are renders???

Etienne

Yes they are! I knew you'd like it.
Notice the second one is a bit noisy and has some fireflys. Sorry for the noob question but how can I upload a bigger image for you to click on it and watch it full size.

This is stunning, fenerolina!

Yes it is, thanks for sharing!
Your preview-pictures look photo-real, I wish I could see those in the matDb. Benn?

Very nice material.
My only suggestion would be to add <step_blend>true</step_blend> to your blend materials. This will get rid of the fireflies.

... but "step blend" kills gradients in blend maps, doesn't it?
Well, if provided.

It will kill gradients, but that shouldn't matter on a material like this - so long as the blend map is high enough res

zeitmeister wrote:... but "step blend" kills gradients in blend maps, doesn't it?
Well, if provided.

Correct, it makes the material either completely transparent or completely opaque, depending on the value of the blend map. Which can be good, because it gets rid of fireflies due to partial transparency

Also step_blend has the advantage to borrow (filter) pixels at the B/W interface, wich is a nice and sometimes usefull (ie: fonts) effect.

Bravo fenerolina !

Thanks for the info!

I'm very glad you like it!
I'm afraid I don't understand when Ono says "add <step_blend>true</step_blend> to your blend materials" I know I have a lot of lacks in texturing, but could somebody explain it for me in more details?
Thank you.

Step blend is: "Everything below 50% white in the texture becomes 0% white (black) while everything above 50% white becomes 100% white"
That way gradients are killed but the rendering is more "efficent".

Thank you Purespider!
but my noobish question is where do I have to input this value in the texture?

In that case, I think fenerolina wanted to achieve a semi-transluescent material, by blending a diffuser and a diffuse transmitter. I do not think you can do the same with step blend

Etienne