SketchUp textures problem

adrianbonet · Post by **adrianbonet** » Mon Dec 05, 2011 11:46 pm

Dear All,

I am new to Indigo.

I have a model on sketchup, with textures that do not seem to pass into Indigo RT. I have no clue what is the problem, plese see attached image.

You can get the original Sketchup file (for free) at: http://www.designconnected.com/catalog/ ... -Set_p3034

Could anybody point me to the problem/solution?

Thanks in advance

Adrian

snorky · Post by **snorky** » Tue Dec 06, 2011 1:13 am

it isn't a "real" problem...
renaming material solve it!
(skindigo cut off long name)

adrianbonet · Post by **adrianbonet** » Tue Dec 06, 2011 2:42 am

Thanks Snorky,

That solved the textures problem... It was a bit strange as the wood texture had also a long name but it did pass without problems...

anyway. see attached JPG to see how it looks now.

there is still two problems, one is the plate texture. which in SketchUp is just a flat color with 95% opacity.

the other problem is these infamous white pixels... that the longer the render runs the more thwy apear all over the glass... I will let the render run for longer but I don't see any of them disapearing with time.

Any help will be apreciated.

snorky · Post by **snorky** » Tue Dec 06, 2011 3:35 am

adrianbonet wrote:Thanks Snorky,

That solved the textures problem... It was a bit strange as the wood texture had also a long name but it did pass without problems...

anyway. see attached JPG to see how it looks now.

there is still two problems, one is the plate texture. which in SketchUp is just a flat color with 95% opacity.

the other problem is these infamous white pixels... that the longer the render runs the more thwy apear all over the glass... I will let the render run for longer but I don't see any of them disapearing with time.

Any help will be apreciated.

go slowly!!!!
not so strange... wood texture is only one exported and applied to all models with diffuse material
...
plate, glass and all texture/material must be correctly set!!!
please read this on Indigo manual to set material correctly.

"infamous white pixel" disappear for:
- more calculation time
- best material setting
- best light setting (here)

sorry for my bad english...

adrianbonet · Post by **adrianbonet** » Tue Dec 06, 2011 4:19 am

Thanks again Snorky,

I will read carefully tonight and redo a test tomorrow with better light, materials and settings...

Regards

Adrian

CTZn · Post by **CTZn** » Tue Dec 06, 2011 5:28 am

All valid points from snorky. I would add:

In the SkIndigo plugin menu, check the Advanced Parameters tab in the Render Settings window. There, change the tracing method to Bidirectional Path Tracing.

Single Path Tracing naturally renders shadows from glass very slowly, and your scene does not meet the requirements to enable Architectural Glass Acceleration (flat panes). Bidirectional should do a better job, the addition of MLT is to be considered in even more demanding glassery renders.

Note that the change above will not take effect before you untick the GPU Acceleration switch. In effect, as of Indigo 3.2.4 the GPU supports only Single Path Tracing wich is what you want to avoid for that scene in the first place.

adrianbonet · Post by **adrianbonet** » Tue Dec 06, 2011 10:27 pm

Thanks CTZn,

That is good to know.

although the las image was done with Bidirectional Path Tracing already.

let me put decent lights and materials and I will post back the result

adrianbonet · Post by **adrianbonet** » Wed Dec 07, 2011 4:15 am

Well having a background image makes the white dots disapear...
let me fix now materials and lighting...

Pibuz · Post by **Pibuz** » Wed Dec 07, 2011 8:15 pm

Might be because there's no direct light hitting the glass surfaces

adrianbonet · Post by **adrianbonet** » Thu Dec 08, 2011 3:43 am

So far the white dots appear only when using the standard sky and atmosphere setting from SketchUp/Skindigo

here it is the latest image. with some ceramic for the plate as well as some shyness for the apples and grey bottom.

now the problem was that the Environment map illumination is to even and soft. it makes the tray looks as if in were in shadow. with no hard shadows anywhere. what would be the best way to achieve a shinier look? and sharper shadows? but still keep the environment map?

I was thinking about putting a fake sun some meters away. in order to have some better shadows and overcome the shadowy lighting that I had before. But I am not able to get a light bright enough... is this idea possible?

Pibuz · Post by **Pibuz** » Thu Dec 08, 2011 3:51 am

I wouldn't use a lightsource to simulate the sun, personally.. Too difficult to set IMHO.
I'd rather lower the gamma of the EXR: that will result in sharpened shadows.

adrianbonet · Post by **adrianbonet** » Thu Dec 08, 2011 4:15 am

Thanks Pibuz...

but you lost me here... IMHO? gamma of the EXR?

I am a newby... I can see by your blog that you are a pro.

Pibuz · Post by **Pibuz** » Thu Dec 08, 2011 4:25 am

IMHO= In MY Humile Opinion

gamma of the exr: just open your env map (EXR) in photoshop, go to IMAGE->ADJUSTMENTS->EXPOSURE, and move the gamma cursor to the left.

..and I am not a pro: only a student like you.

There are loads of people much more professional than me, here in the forum!! BTW, thanks: I take it as a compliment

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