- Sun Nov 06, 2011 6:43 am
#349085
OK, here some more information:
What actually happened to me: at the same time, while I was working on the final rendering of a project, Rhino 5 suggested me to update to a newer release, which I did and soon after, maxwell also informed me there was a new release available.
And - as I mentioned befoe - I was pretty happy with the news.
I downoaded both the core release and teh new plugin for Rhino, installed it, restarted the session and ... the images were darker, slower to render or, at least to clear from the noise in the initial stage, but the worst thing: the textures were all messed up.
before I'd been using, successfully, patch 2.5.1/march 2011 and Rhino plugin 2.5.13 August 2011 (x86 and 64).
previous Rhino beta was: rh50Beta_x64_en-us_20111025_2249
now the sw has been updated to Rhino 5.0 (5.1.2011, 1103, 03/11/2011). I didn't download the new release, it self-updated online.
Before this happened, I never had issues with texture mapping.
The model is complex and big as it's a complete bowling venue, but I was rendering it on separate stages, so far the one on which I'm having the problems is pretty simple.
Just a section of the venue, with simple walls and a sitting area.
the texture issue happens on simple planar surfaces.
I have no time to post images now, I will try to explain it simply.
Let have a wall with an inset, a kind of recess of approx. 15m in a 23m long wall.
All along the walls I have a decorated wall which is simply recalling the bowling lanes, running horizontally. So fr kind of teak deck if you like, a simple texture of maple wood with darker horizontal lines running from left to right.
I can hardly image anything simpler than that.
when I restarted my rendering, I found the textures all messed up. The wall is composed by 5 segments, three of them run parallel to each other (just one is recessed a few meters inside) and two other ones connect them, so far they're 90°, facing each other.
Simplest way to texture it is to select all together, apply a box texture, capped, using the bounding bow option.
Then adjust the U and V sttings and it's done.
No, the three main surfaces had the texture apparently turned 90à (lines running vertically) but unevenly spaced, while the two perpendicular surfaces kept the correct original setting.
All my attempts to fix it failed.
When I slected the texture gizmo, to see what was going on, I was shocked to see that - in place of a unique texture gizmo, planar or box, basically the shape and size of the selected wals, there were three overlapping squares, much smaller than any of the walls, laying horizontally quite far from the surfaces. Let say in a negative quadrant, maybe -15000x, -5000y, 0z. Assuming my model sits on 0,0,0.
After several tweakening, I was finally able to get a decent result by selecting alll the surfaces together, applying "surface texturing" on them and all appeared correct again.
After that now the texturing appears to work properly.
But I know I did all what I could reasonably do to correct it, without success.
I deleted the texturing and re-applied, it was always doing the same thing.
And, this never happened before to me. I'm not really a novice, and this model is definitely a basic one compared to my usual works.
----
about rendering:
All the values appear to work differently from before.
The image starts much darker and the noise takes much longer to clear.
before, the image started rendering pretty dark on the first pass, then - accordingly to my setup - it started to clear quite fast on the second and third pass, and also the noise started to clear after a few passes.
Now, the same image, with the same settings, keeps much darker, and the noise is being cleared progressively on each single pass, but much slower than before.
It looks like if before it was able to clear 60% of the noise in the first few passes and taking its time to compute the whole image, now it clears only a little % on each pass and you cannot predict the result until it's finished (yes, you can still see it on the preview image but the large final one takes longer to clear).
Pretty disappointing.
Also, the change of sliders limits and light values is really disappointing. Why are you doing this on every one or two releases ?
At least, this is what happens on my PC.
BTW, after a couple of days, reloading the file, the texturing issue seems not to happen anymore.
Don't ask me why, I didn't change anything, I just focused on something else which was more urgent than that, and left it partially unsolved. Now it works.
But it didn happen and it's not nice when it does that way. maybe it's a problem with Rhino releases, but it was crazy.
I can confirm the other issue, regarding the darker and noiser images, even on other models. I tested on a yacht I'm designing and it was the same. Much darker, slower and noisy.
And even the final image was not as good as before. It seems that i have to re-tune the lighting.
BTW, this happens on IBL and with or without emitters in the scene.
On the yacht model, I had to completely change the emitters values to get some results.
I will let you know as the tests proceed.
Paolo
Paolo Velcich
industrial designer
KORUM DESIGN
DUBAI - United Arab Emirates
http://www.korummarine.com
pavel@korumdesign.com
Thank you !
- By Andreas Hopf