Rendering furniture inside archhitectural model

[cjjat puresilica]

Hi everybody.

 

Last week josuph14 kindly helped me resolve problems with the water reflection in my very first render. I managed to sort out that problem and now need to be able to place my furniture models inside the building without crashing my computer. I wondered if I could set them up with shadow mattes or something similar but don't know how to resolve the perspective etc.

 

The render is of a self elevating building I have designed and can be seen at:

 

 

http://www.puresilica.com/press%20release/secure%20press%20release/PDF%20Documents/Six%20Sided%20Pyramid%204000x3000pixels.pdf

 

 

Any suggestions please?

 

Thank you.

 

Christopher

[hughie]

Hi Christopher

Rather then go to all the trouble of setting up alpha channels, you could create a new file without the water (which I would imagine is taking up a good chunk of your memory ) place your furniture into the new model, render and photoshop the two images together.

[cjjat puresilica]

Hi Hughie,

 

I actually added the water in Photoshop in the end, as I couldn't get the results I wanted with my limited knowledge of Vray, despite josuph14's kind help.

 

I have tried to merge the furniture and the image in Photoshop but the glass on top is not transparent i.e it is in effect an image of the background with reflections. I have wondered if I could save the Vray Reflections channel of the front glass and put that on top of the furniture in PhotoShop but it is just a little out of my skills base at the moment.

 

The individual pieces of furniture on their own can take all the might of my computer without putting multiples of them in the building and rendering as a whole.

 

Incidentally, I have not found an issue with Vray regarding memory accept the 1GB virtual memory limit which I find a bit of a hindrance.

 

I realise that when funds permit I should go over to 64Bit and upgrade my computer but I need to make do at the moment.

 

Any further further thoughts please.

 

Thank you,

 

Christopher

[jophus14]

Cjjat puresilica: I sent you an email prior to reading this post. To solve the glass issue. You can render a pass without glass, then re-render just the glass with a mirror finish to get the reflections and composite the two in Photoshop. By rendering the glass seperately with full reflection, you are able to change the opacity to whatever you want in order to get the desired amount of transparency/reflection into the space. This is just one possible solution.

[cjjat puresilica]

Thank you once again josuph14,

 

That sounds good.

 

Do you mean to add just the saved Vray reflection channel in PhotoShop or the complete rendered image.

 

I hope you were not offended by my opting out of trying to add the water and reflection as per your advice, I was working so late and just had to cut corners. I hope you do not feel that the end result suffered too much as a consequence.

 

Any thoughts about the furniture models in a similar vein to your suggestion for the glass. Many years ago I dabbled briefly with an early version of 3dsmax and remembered rendering a scene complete with lighting and then somehow merging multiples of that scene, seen from different angles into the main render. That way I would only need to set the model up once and then re-use it over and over again with different camera angles.

 

Would something along those lines work?

 

 

Many thanks once again.

 

Christopher

[jophus14]

I was saying that you would have to render two seperate images; 1. The entire scene with no glass in it. 2. Just the glass with full reflection and whatever backgorund you are reflecting (assuming that the background is what is being reflected). Use the "entire scene render" as your base layer in Photoshop and then the "glass render" as your second layer. You can then adjust the opacity of the glass layer to get the desired look of reflection and transparency for your image.