AccuRender nXt

advanced rendering for AutoCAD

Gentlemen,

I have several problems with my RPC-details...

1. tree (left) just PNG file, transparent Alpha. How to get rid of white pixels, it means how to make them semi-transparent? Now, using sensivity parameter, one see either transparent or not, no steps between...

2. tree (middle) - JPG file, color (white) transparent, but no "holes" in the tree-shape. Just white outskirts. How to make them transparent?

3. tree (right B&W) - RPC mask, (grayscale, background black) How to apply the tree-coloures to the white figure, keeping the nice transparency scale?

4. Shadow - should I use Monte-Carlo reflections?

Any help appreciated...

Views: 167

Reply to This

Replies to This Discussion

Are these archvision RPC's?

Nope, I havn't used ArchiVision... Yet.

So what are these, decals? materials?   RPCs are specific products, trademarks of Archvision.  The answers to your problems are very different if these are RPCs.


ok, my mistake. These are just nXt decals. I called them "RPC", didn't realize that's the specific product name. 

However, is it possible to solve this issue using just nXt and AutoCAD tools?

Alpha masking is almost always the right approach.  The decal will need to be tagged as double-sided for the shadows to work properly.  You'll need to do some editing of the decal in photoshop or eq. to get a better result in terms of the halo.  The color of the alpha masked area, at least in the vicinity of the tree boundary, should probably be changed to a green which is similar to the tree itself.  A blending tool may need to be used between the masked pixel and the tree edge to create more pixels with intermediate alpha.

If you can't figure it out, zip up the drawing and decals and either attach them to a forum message or upload them via the Support menu above.  I'll take a look.

Roy,

I tried to figure it out, it seems to work more or less... The only point to clarify is how to achieve intermediate alpha channel?

The alpha mask is just a gray scale image like the other (color) channels.  It can be edited in your bitmap editor just like the other channels.  You may need to search a little bit toil figure out how to do it. It probably contains intermediate values already at the edges, but may require further blurring to look better.

RSS

Search

Translate

Latest Activity

Maciej posted a discussion

nXt + AutoCAD 2025

Gentlemen,The last file I used to load, was ArAcad_24_64.arx, and, unfortunately, it doesn't work with Acad 2025.Any idea how to get the proper nXt-App which suits Acad 2025?Any help appreciated...Regards, Maciej MarkowskiSee More
23 hours ago
OYEBANJI EMMANUEL replied to OYEBANJI EMMANUEL's discussion CAN WE GET PETER MILNER TO TRAIN SOME OF US FOR A TOKEN ?
"I meant Chris Fox, not David."
Thursday
OYEBANJI EMMANUEL posted a discussion

CAN WE GET PETER MILNER TO TRAIN SOME OF US FOR A TOKEN ?

Good day, forum members,I was thinking that we could each, if interested, contribute a significant token to give Peter Milner and David to train us virtually in nxt render for Autocad. Am not sure he still uses it but the experience he has spanning over 20 years cannot be underestimated. I wish the forum co-ordinators could look into this. So that more of us will produce realistic renders with the paid version of nxt render and we will be able to encourage other users of other more advanced…See More
Feb 12
OYEBANJI EMMANUEL commented on OYEBANJI EMMANUEL's photo
Thumbnail

V3x copy

"Thanks"
Feb 11
Maciej commented on OYEBANJI EMMANUEL's photo
Thumbnail

V3x copy

"Soft & nice light scheme.  :)"
Feb 11
OYEBANJI EMMANUEL posted photos
Feb 7
OYEBANJI EMMANUEL posted a discussion

LIGHT STREAKS IN ACCURENDER STUDIO

Good day everyone.Does anyone here know how to create light streaks in ACCURENDER studio or in nxt render ? Please share your knowledge with me. Light streaks for interior ceilings in the p.o.p works and under, a t.v console. See More
Feb 2
OYEBANJI EMMANUEL posted a photo

3D_Replication final

I created this replication of one of Peter Milner's renders, not with AI but with sketchup (with the matchnewphoto tool), autocad and nxtrender.Critics and comments are welcome.
Dec 31, 2024

© 2025   Header image courtesy Peter Milner   Powered by

Badges  |  Report an Issue  |  Terms of Service