LIGHTUP Help

[iichiversii]

Im new to lightup and have being searching for a fix for this problem, its proberly something simple but i just cant figure out whats going on here, maybe someone could help me understand this and how to fix it.

Here is an image export from sketchup of a very simple lowpoly tree with the texture used to the left.

And once rendered in lightup this is what i get

I have tried searching the lightup forums for this issue but couldnt find anything so i said id try here instead

[pilou]

Maybe your PNG must have background "transparent" ?

[iichiversii]

Believe it or not but i taught it was just that png but it happened here too, no transparency on the png

[iichiversii]

everything in red is on the same texture, the cars are on a separate texture, this is really starting to bug me, i had high hopes for lightup, it never occured when i was using the trial version a couple of months back

[beginner]

Hi iichiversii,
Can you post your model.
We have LU and maybe I could help.

[AdamB]

@iichiversii said:

Believe it or not but i taught it was just that png but it happened here too, no transparency on the png

[attachment=0:2seo0zfj]<!-- ia0 -->HOUSE_WIP_LP_lightup(no scene)_2012-11-07_2313.jpg<!-- ia0 -->[/attachment:2seo0zfj]

Hi,

If LightUp cannot read a texture for any reason, it creates a red texture with the pathname of the file it was unable to read written "into" the texture.

LightUp reads most texture formats, but does not support "JPEG Progressive" which is a not widely used variant of the regular JPEG image format. I can see the file has a .png extension, but are you certain its not actually a jpeg?

The solution is to convert it to a supported file format. PNG is well supported by LightUp, as are TGA, BMP,HDR,VTF formats.

Adam

[Gaieus]

What's the colour channel of the images? I really do not know if it is relevant but when trouble shooting weird things,one tends to think of everything that comes into his mind. I have seen issues with images that are not RGB channel in SU (although I have no idea if it can cause problems in LU)

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Edit: Adam beat me but since he's here, at least he can confirm if CMK colours can properly be read.

[iichiversii]

This I did not know, thanks Adam, ill check it this evening to be sure but normally I only use png format images in sketchup, ill post to see if that is or not the issue

Ill check that also Gaieus just to be sure

[iichiversii]

@beginner said:

Hi iichiversii,
Can you post your model.
We have LU and maybe I could help.

Thanks for the offer, ill try out what Adam suggests and if it isn't the issue ill post

[iichiversii]

Ok the texture was a png and it never worked, to double check i exported the image and converted to png to be sure and had the same issue, but i then converted to a TGA image and it works just fine, still cant understand why the PNG image didnt work

[Chris Fullmer]

What software are you using to convert and make your images? Photoshop? GiMP?

[iichiversii]

Hi Chris, i use GIMP

[Chris Fullmer]

Hmm, I'm not as familiar with that one. I know in photoshop for saving png it gives an option for Interlace - either none or interlaced. Typically none is what I always use. and probably make it an 8bit rgb mode png. That's all I've got. And I don't have lightup experience, just general png usage experience, so its just a guess.

[Rich O Brien]

Share the texture to remove the mystery

[iichiversii]

[Rich O Brien]

try this

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[iichiversii]

Ok that worked Rich, so what was wrong with my PNG ? and what should i have done to make it work?

[Rich O Brien]

I want to know how you went about saving....

[AdamB]

@iichiversii said:

Ok that worked Rich, so what was wrong with my PNG ? and what should i have done to make it work?

Perhaps what you've done is export the texture and done "save as" a PNG. Which converts it to a PNG file.

But the embedded Material texture you had before that went red (named "TREE(1).PNG") was actually a jpeg with a misleading extension.

but glad you've resolve it!
Adam