corten_pavillon_22mm_1
"Thanks for your kind words.
Yes, all plants are generated with nxt plant-editor.
I have used leaves from Marc Chaumier's plant library.
(Download/ Content + Entourage)"
advanced rendering for AutoCAD
Fractal Trees vs Images for trees
"I'm usually rendering fairly detailed AutoCAD architectural models on 3D
modeled sites with lots of AccuRender trees and shrubs. I was wondering
what AccuRender 4 (using Acad2004) and AccuRender nXt (using Acad2011)
actually "sees" when you select a view to render. Do they "see" and have to
"consider" the 50 trees behind the building (adding a lot of calculating
time to a rendering), or do these programs "hide" and never consider the
stuff that's hidden in a view by other entities?"
Everything in the models takes time to render, so we recommend you use images for background trees, and only use fractal trees for tree for which the additional detail will make a difference.
The 3D Fractal Plants show more and more detail, the more you zoom in on them.
But for plants which are in the background, the 2D images work well and save considerable rendering time.
Here is a rendering of two plants - zoomed in - the one on the left is rendered as a 2D image, the one on the right is rendered as a 3D, Fractal plant. If you look closely you can see the better detail in the 3D, Fractal plant.
However, when these two plants a zoomed out a bit the difference is almost not noticeable.
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Replies to This Discussion
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Permalink Reply by Steve Wojtynek on
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Sounds like good method... something I need to look into as I've never used tree images.
Assuming I want to continue working the old way using only fractal trees... Does AutoCAD and AccuRender take time to calculate trees hidden by buildings etc? I can see from the on-screen messages that go by, that the first step AccuRender does is to change all the AutoCAD render-able objects to faces. I assume it converts all the objects in the model (including the hidden stuff). Does it then use the "front row" of faces to hide the "back row" of faces? If that's the case, I can see that turning off the trees that are hidden would save a lot of time. (But then again... I charge by the hour! Just kidding... I don't like wasting time.)
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Permalink Reply by Roy Hirshkowitz on
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nXt doesn't really work like that-- all of the objects need to be taken. An object which is hidden from view may show up in a reflection, a shadow, refracted through glass, contribute to diffuse reflection of light in the scene, etc..
OTOH turning off objects which don't participate does not usually save a lot of time unless you are in a low-memory situation.
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corten_pavillon_22mm_1
"Very nice piece. Brilliant work.
Are all these plants nxt render plants ?
They look very good. Ground cover is so thoughtful."
"Thank you so much."
"Sorry, do not exactly how to do it right.
If i sent you one or sets, could you "compose" one material as an example?
Maybe this is interesting for others too.."
"Thanks Rich,
exacvtly what i found out.
Only did't know what to dfo with the AO map.."
"nXtRender doesn't use the AO texture image settings for anything, so don't bother trying to use that.
I would start use the Diffuse textures at 100% and experiment with the levels of the Specular Reflection.
You might need to toggle the…"
"Hi,i imported some old Dosch 3D plants in nxtRender for testing, fully textured without an issue.
Also used some free sketchup tree models (*.skp) from sketchuptextureclub and opened them in sketchup, exportet them to *.obj and used them in…"
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