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About built-in and 3rd party, classic and real-time rendering solutions, settings, workflows, etc.

onyxTREE vs xFrog

Anonymous
Not applicable
Maybe this is a bit off topic but I am ready to invest in some 3D tree&bush software. After some research I found onyxTREE and xFrog my favourite, as long as there is no onyxTREE demo to try I'm struggling with final decision. If there is somebody using this package and can give some insights regarding workflow, polygon handle, overal usefulness with ArchiCAD than I would be very grateful. If there is any other software you're using and can recommend, please do.

Thanks in advance.
13 REPLIES 13
Anonymous
Not applicable
Onyx Tree
User for 4 years ... it works

even with poly reduction there is a rendering pain threshold.

attached is adding a Onyx palm top to the library palm to keep rendering time reasonable.

also an ONYX tree where shadow and reflection comes into play.
d copy.jpg
Anonymous
Not applicable
palm top
d copy2.jpg
Anonymous
Not applicable
shadow - reflection
Anonymous
Not applicable
reflection quality
Dwight
Newcomer
As for operation:

I've been recommending Onyx for a long time, but it is only since Archicad has the LightWorks engine that we can do a city block of 3D Onyx trees.

Starting with an existing botanically accurate model from the Onyx library of conifers, broadleaf, palm, bamboo or flowers, any parameter can be adjusted to make a model unique.

When exporting the model to 3Ds, filters permit polygon reduction by eliminating smaller elements like stems (Got no stems, got no seeds, Acapulco Gold, that's tree) and flattening leaves. See attached image for export dialog.

We all know that too many polygons can kill a rendering and trees have lots of them. In fact, if mediocre World War 1 poet Joyce Kilmer was alive today, his poem "Trees" would read:

"I think that I shall never see
as many polygons as in a tree."

My Onyx tricks are:

flat leaves.
larger, but fewer leaves
only export the leaves, larger branches and trunk with only five sides.

Unless you make a special translucent, speckled and perforated material to soften edges, leaves CAN look like the shattered emerald we are accustomed to in Archicad trees. Softness counts.

Onyx uses the standard xyz orientatiion and Archicad does not, so you need to tweak your 3DS import or the trees come in laying down.

I also recommend exporting the foliage separately from the branches and trunk so that you can rotate them against each other to give the impression of variety in a street tree line. It is also easier to change materials in archicad if you do this.






export.jpg
Dwight Atkinson
Dwight
Newcomer
Here's an example from my book of a street of onyx trees - the same foliage and trunk in each.
This was to be a cross between a photorealistic rendering and a sketch.
onyx test.jpg
Dwight Atkinson
Dwight
Newcomer
There's an economical way to get reasonable 3D foliage that is character-based, not botanically accurate:

Hoshino Residential Library, wherever it is available, has a great shrub, and some trees, that can give good foliage character with controllable polygon numbers.
Some of these are in the planters of the last image. Using translucent perforated plant material softens the shattered glass look.
Dwight Atkinson
Anonymous
Not applicable
Thanks guys for respond. Looks like onyx is unbeatable.
Couple more things - what is average file size for a single, medium detailed tree when using onyx? What about bunch of trees for background (15-20m distance), is it still better to use 2D planes?

Dwight,
What is the status of the libraries like Hoshino or 20th Anniversary collection, are they free to use in commercial projects for any registered AC users, or only for those who got them as bundle/bonus? I cannot find a clear answer for that anywhere. Thanks again.
Rafal SLEK
Advocate
Try ArchiTerra3 (new version) with Treegenerator function. Trees are generated by algorithm with some random variations. First attempts with LW engine are very satisfactory - objects are fast for computing and looks good (also in 2d symbol).
These are only "architectural trees" objects - no equivalent in reality like in OnyxTree.
Best
Rafał
//Archicad since 4.1 version
//MacBook Pro Retina 2019/2.4 GHz/Intel Core i9/32GB RAM/Radeon Pro 5500M 4GB/macOS 13.6
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//ArchiCAD 28/Twinmotion 2024

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