Exr - photoshop problem ..

[ranach]

Hello everyone ,

 

I finally decided to join you as I found the site very friendly and useful.

But I really need your help today .

I searched a lot about exr files when rendering something from 3ds max and choose the raw image .

 

I rendered my design and transfare it from virmg to exr and tried to open it with Photoshop CS6 that I bought yesterday and each time it gies me error in photoshop and it doesn't open ((

 

Is there a spesific plugin that i need to install in photoshop or is there something wrong when saving my rendered image .

 

My laptop is Dell Inspiron 1520

Core II duo with 2g ram

 

Please guide me to the right way to render a high resolution picturemy client is waiting and donno what to do .

[Noise]

There is alot that could be the problem so, in the absence of you providing detailed info on the process you have gone through and any screen grabs etc... I would suggest just rendering and saving out as 8bit tifs. Exclude saving as virmg files as it just adds to the complexity of the process especially when you have a deadline looming.

 

I would assume that your laptop is buckling under the load generated by the size of the exr files as they tend to be quite big - but, I cannot be sure.

 

Two questions;

 

1. Does your project absolutely have to be 32 bit and

2. Is the size of the render more than 5k pixels ?

[RyderSK]

The 2GB ram which is shared by Windows, Photoshop and 32bit hi-res file could play a role.

[Morne Erasmus]

...transfare it from virmg to exr and tried to open it with Photoshop CS6 that I bought yesterday and each time it gies me error in photoshop and it doesn't open ((

 

1) Make sure the vrimg file isnt corrupt in the 1st place.

On the Max menu under "Rendering", go to "View Image File" and open the vrimg file. It may display darker than what you expect.

If it doesnt open, chances are that the vrimg file is corrupt

 

2) How did you convert the vrimg file to exr?

Did you manually type the parameters in a command prompt or do you have a script? Did you convert each channel to it's own exr file or did you create a multichannel exr file?

 

If you don't need channels, then you can save directly to exr from the VFB. In the text box where you save the raw image file, just remove the .vrimg extension and replace it with .exr

This will create a mutlichannel exr instead of a vrimg file. Note that you can't afterwards convert the vrimg file to exr by just changing the extension.

 

If you are going to be using photoshop with various channels and exr and linear 32bit images a lot, then maybe it's a good idea to invest in ProEXR http://www.fnordware.com/ProEXR/

The plugin lets you open multichannel exr files directly without having to extract each channel sepreately.

 

This plugin is already built into after affects, so maybe that could be a solution for you also.

 

Also remember, like Juraj mentioned, your limited hardware may also be giving you issues depending on the filezise and resolution of your image.

 

You may also want to switch OFF gpu acceleration in photoshop prior to opening a large file.

Edited May 14, 2014 by Morne

[ranach]

Dear all ,

 

Thank you so mich fir your replies .

I'm going to tell you what I did .

First of ally client wants the picture in A0 size . So high resolution.

What I did is that

1-i checked Enabled built in frame buffer and

2-the resolution 2048x1500

3-And checked render to vray raw image file

 

I tried to open the virmg file with max it didn't open

I transfare it to EXR by the plugin that came with Vray

It didn't open with Photoshop

 

Honestly this is my first time trying to render in high resolution

So i don't know if i chose any multi channel !!!

 

What i did i got the size of printing from

Rendering

Print size

And get the propriate resolution for A0 poster

And render it by using region

But it took me a whole day to finish it

 

 

But i want to know if using Raw image option is better than region rendering?!??

Since my ram 2G it doesn't help that much

 

I have another project after few month and they want the poster on 3x8 meters poster they want to put it in the site

I'm so concern abiout that size and resolution any ideas ?