3D Panorama- Tutorial 2 (Box Camera)

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Click inside the image and you can Pan around the room. If you double click you will experience the Panorama full screen.

If you want a step by step tutorial check the previous tutorial 3D Panorama-Tutorial 1 (Spherical Camera)

Position a Vray camera at the Center of your scene at around 100 cm. from the ground

choose Box Camera

activate Override FOV

Vray FOV 360°

Deactivate all the other settings

Pano2a

Render Settings: Output

You will need to Render the image with a ratio 3:4

Since we needed a very detailed image we used 7500 x 10000

Pano2b

This is the final Render image

Pano2c

PANO2VR SETTINGS

Open the program and first thing save the file in a folder used just for this Panorama. Load the image you just rendered by clicking on “Select Input” and then since we need to convert this kind of image to an equirectangular image click on convert input

Pano2d

Choose type equirectangular and convert

Pano2e

This is the converted image

Pano2cc

Lets change the Viewing Parameters so that we don’t get a distorted Panorama.

Pano2f

Change the FoV to 60 degrees or even less if you prefer. You can also change the Pan and tilt values if you want the panorama to start in a different position. In this case we rotate 90 degrees.

Pano2ff

Go to Output and choose HTML5 , press ADD.

Pano2g

To calculate the Cube Face Size you need to estimate the value of the equirectangular width divided by 4 or Pi. Then you take this value and divide it by 2 until you get a value that is less or equal to 512. To accomodate the preview track of 1/4 you will divide this value by 4 and round to the nearest whole number. Take this final number and multiply it times 2 until you are close to the starting estimate value.

Example with our image of 7852 x 3926 pixels

7852/4= 1963

1963/2=982

982/2=491 (level tile size)

491/4=122,8 round to 123

123 x 2 x 2 x 2 x 2= 1968 (cube face size)

Levels: 1968, 984, 492 (load at startup)

Pano2h

Now that we have seen both cases with a Spherical Camera and with a Box Camera we can discuss the Pros and Cons. The Spherical Camera gives you a Render that has already the correct image ratio (2:1) but in some cases it takes longer time to render. In our case the difference is very relevant because we usually have Chandeliers at the center of the room and as you can see from the image anything that is at the center is larger than normal in a spherical image. This does not happen with the box camera and therefore our Render time is noticeably reduced. The box camera has an extra step because you need to convert the render in a equirectangular image, but it really just takes seconds.

As a conclusion we personally prefer the box camera, but I guess it all depends on what you need to Render. Let us know if you tried Panoramas and if you experimented something different.

Leave your questions and comments below

Posted in Cinema 4d, Panorama, VrayforC4D.

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