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Problem with reflections


Zortea
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After a looong time here I am again...

This time I´m having a problem with this building, as you can see in this picture, the reflactins on the windows is the old windows and it is supposed to be the other side of the street.

I´ve thinking on two solutions to this, first is with a help of the photoshop, I render one in the same camera view as this one exept that instead of using the ordinary background, I´ll use the other side of the street. In this case I get the rigth reflection on the glass and after all I simply cut the windows and paste it on the old image.

the second is making all the job on the Max, but how can I do this?

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stick to photoshop...easier, faster, and better results...

Well, yes, you're not wrong ecastillor, but for a larger scene, it may be very long to "correct" all by hand and even sometimes you may forget something...

 

I could suggest a large board accross the street mapped with the picture that needs to be reflected. This will do it too!

 

If I may, the integration of you house is very accurate, but even if I think it is not the final image, and you're going to work on it, beware of the brightness of your model vs the backround, it looks like the light is not doing the same job on them.

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  • 2 weeks later...
stick to photoshop...easier, faster, and better results...

I disagree.

Your 3D app should make reflection, transparency and refraction very easy to recreate. It's one of the real beauties of working in 3D-accurate physical properties occur automatically if you set objects, materials and lights up correctly.

 

OK Photoshop is faster. I'll grant you that, but better results? I wouldn't say so.

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No, you take your photo and, as suggested above, map it onto a flat polygon behind the camera or depending upon the photograph, onto a sphere or as a reflection map in your material. You can add certain 3d elements for added effect.

 

This allows camera flexibility and if you animate, the environment is there for every frame with no additional work.

 

If you do it in post, you lose the effect of the other properties of the glass(bump, transparency etc. You effectively lose a major element of control and flexibility rather than gain it (imo).

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Few time ago, I´ve had the same problem, and I´ve tried to put the map on a polygon in front of the building, well the results we´re not the one I looked for.

Using PS, the results were exactlly those I´ve expected(of course that the pictures must be taken in one single session). in this case ware only few windows, but what about if I´ve had a glass courtain on a seven-store building?

maybe I´ve still cutting and pasting

 

the one I´ve tried with the polygon is this...

by the way, what about the waterfall?

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No, you take your photo and, as suggested above, map it onto a flat polygon behind the camera or depending upon the photograph, onto a sphere or as a reflection map in your material. You can add certain 3d elements for added effect.

 

This allows camera flexibility and if you animate, the environment is there for every frame with no additional work.

 

If you do it in post, you lose the effect of the other properties of the glass(bump, transparency etc. You effectively lose a major element of control and flexibility rather than gain it (imo).

i guess so...since i started using hdri, most of the hassle has gone...the problem is to find the right ones...

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Zortea,

I think these images lack contrast and shadow definition.

 

It gives a feeling of 2 dimensional work and the pasted in reflections add to that effect.

 

Your image that this thread was started for had much better soft shadows.

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About those peoples, well, it just happens that they are the closer I´ve had to put near the pool but you´re rigth, the main subject is the house, all the other things are there just to compose the scene...

I must learn somethig about composition to make the scene better.

I think these guys will take a little vacation

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