how to avoid distortion with vraycam?

[max.m]

hi, i face the problem that my image looses the right proportions on the right and left end of the image. espacially in the foreground on the left side the windows of the ground floor seem to be for midgets.

i use a vraycam and always face this problem, in the image you see my vraycams settings and the postion of the cam.

is it the problem that the cam is too near to the house?

[Shaun Hamm]

The image you've attached doesn't show the problem you are having but I'm guessing you just need to use the "guess vert" button. This keeps all the vertical lines vertical.

 

You will need to use this every time you adjust the location of the camera.

[Nic H]

its called barrel distortion and happens on wide lenses

your camera is too wide, try 28 mm

[max.m]

thanks for your replies,

@ nicnic: i reduced the focal lenght to 24mm and it`s fine for me.

[runelore]

Hi, my apologies for this post as it is very little help with regards to your issue.

 

I was just wondering what your method is for creating the grasss that you have used in your scene. I have many methods of my own but I do like the effect you have got.

 

Obviously I apologise for not actually helping with your plight.

 

Many thanks...

 

- Mo'Town

[mienq.blom]

Its definitely your focal length. You should never go lower than 25 (i normally do 30), because this is what the human eye sees. Anything below this will distort your image and vertical lenghts will shrink (such as your floor slabs), because its trying to squish objects that would normally be in your blindspot, into your visual.

Use 30 and apply the vertical shift as needed. If you need more visual on the surrounding objects, physically move your camera further away rather than adjusting the focal length.

[Jimy]

If you want it to look "realistic" you would always have barrel distortion on a real camera at this focal length. I must admit I'm always a believer in adding in a little barrel distortion on the vray camera; it looks great. Be subtle though.

 

The only time you might get this exact verticals and horizontals in reality is if you used a shift lens, but people aren't so used to this look and sometimes it looks a bit unnatural.