Trying to make a 20mb model to a 2 mb one

[moneydeep]

I have a building model which I am trying to make into a smaller photomatch type model but I can't get it below 10mb.

I have attached two versions. the original and the lowres version which I tried to make. And a sample jpg of what the building looks like.

I'm fairly new to sketchup and am hoping somebody could guide me as to what would be the best way to reduce this to 1-2mb as the sample london cathedral i have attached.

Any help, maybe even a sample of how to go about this, would be greatly appreciated.

my model 20mb
http://www.sendspace.com/file/0nsf6t

london cathedral 1.8mb
http://www.sendspace.com/file/0zibye

model image

[CoreMaster110]

I have not downlaoded the model as it takes forever to download that 22mb from sendspace.
But as I look at the picture it looks like you have some textures on the model? Usually textures take a lot of space. I had a very low poly model that was only 200kb big but when I added textures it turned into a 110mb.

Edit: Ok after 10 minutes of downloading it I got it. You have used plenty of textures and they take ~15mb. You should delete all unnecessary textures.

[TIG]

Use as few 'simple' components as you can, for the obviously repeated elements...
Purge the model of unused components/layers/materials/styles.
Keep the Style simple etc...

[moneydeep]

So what is the optimal texture size to keep it small? Because I need the textures. Otherwise its just a plain block.

@ TIG
I use the cleanup script to clean everything.
What do you mean by keep the style simple?

[massimo]

@moneydeep said:

So what is the optimal texture size to keep it small? Because I need the textures. Otherwise its just a plain block.

You can try this plugin

[jgb]

@moneydeep said:

What do you mean by keep the style simple?

On the assumption you used multiple copies of a single component for the facade, (I am not downloading your model) and you are looking for just an exportable. JPG of it, I suggest you edit any one comp. and simplify it by reducing the segment size of the curves at the top and on the bottom grill as well. You can also make the facade panels flat with no thickness. For each hole in a thickness the line and face count goes up dramatically.

Any change to a comp inside its box will apply to all same copies in the model, Even if they are scaled differently, so you only need to do it once.

Save as a "low poly" version so you have both versions.

If they are not all the same comp. then come back here for more help.

[mac1]

If you save your materials as a collection you will then have a skm file and can quickly look at file size to home in on the major contributors.
For your case the material 2 skm is 6.544Mb and panca tattva PNG background is 2.324MB. You then have a a few 10-15, I did not count, in the range of .5MB each. So if you get the material usage file size down you maybe able to save close to 10 MB.
The rest of the reduction to get down to your 2MB target will require geometry work. That is difficult to do and I would expect maybe an additional 2mB reduction so you target will be very difficult to meet
I have not checked yet but make sure you have not used a lots of unique components. That step can add up to maybe 30% in file size increase vs two components.
You can make a quick check on what you can save in the material arena. Use one of the plugins and remove all materials.
Good Luck

[mac1]

FYI: With all materials removed model size is 7.98MB