strange happenings

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Tyro

Storyteller
Registered:1175870339
Posts: 884

Posted 1177443993	Reply with quote #1

Hello guys, I stumbled over some strange texture-behaviors on this early-stage project. I have to say, that I'm not too familiar with podium yet and there might be already an answer on this subject in this forum. So forgive me, if it is, but I didn't know, what words to look for. The first picture shows those crippled textures on almost every right-faced wall (from where the light comes). The second picture is an extracted model with clean surfaces. As light-source I used merely a huge LEM hanging over the area (in both cases). Any clues, anybody? tyro (Oh, and please no general discussion on the architecture. It's NOT my design!!! Well, and in Germany some houses do look like that ... it's a pity but it's not my fault.) __________________ "... and they rendered happily ever after."

bigstick

Moderator
Registered:1165246934
Posts: 10,565

Posted 1177447534	Reply with quote #2

Looks like moire patterning to me. If so, it means that your texture scale is too small. I'll check out the file and confirm. __________________ That which does not kill us makes us stronger -Friedrich Nietzsche

Tyro

Storyteller
Registered:1175870339
Posts: 884

Posted 1177480197	Reply with quote #3

Thank you bigstick. I had the moiree-thing in mind too, but even changing the texture-props didn't help. I just scaled the whole scene down to 1/10th of size and it seems to work. The bad thing about it is, that measuring is quite annoying in any other scale than the original ... any better solution is very welcome. Thank you in advance, tyro __________________ "... and they rendered happily ever after."

bigstick

Moderator
Registered:1165246934
Posts: 10,565

Posted 1177483924	Reply with quote #4

I downloaded your scene and tried rendering, but all the textures turned black! They weren't reversed, but when I tried to replace them with different textures, they rendered fine. I'll have to investigate this a bit more because I haven't experienced this before. __________________ That which does not kill us makes us stronger -Friedrich Nietzsche

Tyro

Storyteller
Registered:1175870339
Posts: 884

Posted 1177488496	Reply with quote #5

I think i found the bad boy. There was a bird-view-image in another layer (though not activated) which seems to have coursed the effect. After deleting the complete layer it renders just fine ... looks like podium doesn't like images around which are no textures ... thanks tyro __________________ "... and they rendered happily ever after."

BrianPLM

Registered:1176469268
Posts: 26

Posted 1177488740	Reply with quote #6

i tried the model and it rendered black as well... i'm sorry i'm not to sure why this happened... it occured once before for me to and i reset materials and copy and pasted into a new SU file. it seemed to work for me.. a quick question on your window settings... i love the windows there very like really windows.. if you actually look in real life windows are for the most part black... what settings did you apply to these... P.S. I find rendering houses the most difficult to look reallygood, due to the lack of materials on them.. its much easier to take a hotel or apartment block and render due to its material changes and complexity..... does you have any recommendations Regards Brian __________________ the christmas jingle rings, the lights of grafton st. shine.... and where am i... away from young mothers with heel clipping prams, the occasional drunk OAP.. this corporate hoiliday makes me nervous............

Tyro

Storyteller
Registered:1175870339
Posts: 884

Posted 1177502908	Reply with quote #7

Hello Brian, my window-settings aren't exciting at all. Simply the grey-transparency texture from SU (a bit darker) opacity at 50 and podium-reflection at 75%(since I have no interior modeled i didn't want to look through the windows). You're right with the blackness of windows in photographs, as long as they don't reflect anything annoying it's OK. So it's helpful when you can oppose something to reflect to the windows (i.e. trees, skies, etc.). In my case it's simply the blue sky, what gives the windows a more natural look. I added an image in which i opened one window a bit at the top (don't know the english word for that, in german it's called 'auf kipp' [google says: 'on tilt'??]) so that it points more to the sky. Especially in summertime-photographs it is unlikely to see only closed windows - so it may add some point of realism to it also... Since I'm a newbie on podium (and rendering in general) I'd rather give no recommendations in many subjects, I guess here are lots of wonderful artists around who are definitely more gifted ... so thanks again and render on, tyro __________________ "... and they rendered happily ever after."

BrianPLM

Registered:1176469268
Posts: 26

Posted 1177509704	Reply with quote #8

thanks for the info much appricated...... keep at it and hope to see more of your work shortly.... kind regards, brian __________________ the christmas jingle rings, the lights of grafton st. shine.... and where am i... away from young mothers with heel clipping prams, the occasional drunk OAP.. this corporate hoiliday makes me nervous............

bigstick

Moderator
Registered:1165246934
Posts: 10,565

Posted 1177526662	Reply with quote #9

I'm sure it was the textures, I cut and pasted the data into a new file, and that didn't fix it. __________________ That which does not kill us makes us stronger -Friedrich Nietzsche

Tyro

Storyteller
Registered:1175870339
Posts: 884

Posted 1177566583	Reply with quote #10

Bigstick, you're probably right. For some reason my last few efforts (even after deleting the bird-view) came up with this crap again... and still when downscaling the model to a 10th it seems to be alright. Could there be any limitations of the size of a LEM? Maybe a question at TBD at this point? With mere sunlight it renders OK. thanks, again. tyro __________________ "... and they rendered happily ever after."

bigstick

Moderator
Registered:1165246934
Posts: 10,565

Posted 1177608702	Reply with quote #11

There are some issues with LEMs, textures and exterior renders I believe. I think only solo or sepo have managed to render exteriors with LEMs, but from memory I don't think the results have been successful. __________________ That which does not kill us makes us stronger -Friedrich Nietzsche

solo75080

Texture King
Registered:1164783614
Posts: 2,487

Posted 1177630022	Reply with quote #12

Actually LEM's are great for exterior, the only issue is that the intesity is very low and in order to get the effect you want you need to create many huge ones which kill the render time like nothing else. __________________ http://www.solosplace.com

biebel

Render Wizard
Registered:1162903203
Posts: 1,130

Posted 1177630910	Reply with quote #13

Quote: Originally Posted by solo75080 Actually LEM's are great for exterior, the only issue is that the intesity is very low and in order to get the effect you want you need to create many huge ones which kill the render time like nothing else. A wider 'range' of the light slider should be on the wishlist for the new Podium update...

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