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Question by Sehnsucht · May 14, 2014 at 12:00 AM · spritebackground2d camera

shown background size doesn't match scene size

This is my first Unity project, in 2D. I have a background image that has size 1024x768, and scene is set to 1024x768 as well, as it's intended for iPad. I would expect it to take fill up entire scene, but it doesn't, unless I set camera size to 3.84. What could go wrong?

Here are the settings that may be relevant:

Camera:

  • projection - orthographic

  • viewport - 0,0; 1x1

  • size - 1

  • position - 0,0,-10

  • scale - 1,1,1

Background:

  • texture type - sprite

  • pixels to units - 100

  • size - 1024x768

  • max size - 1024 everywhere

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Answer by robertbu · May 14, 2014 at 12:03 AM

You have an orthographic camera. The orthographic size is 1/2 the screen height in world units. Your sprite has 100 pixels to a unit. So a image with a height of (1024x768) will be 10.24 x 7.68 world units in size. So with a vertical size of 7.68, the orthagraphic size to have that image vertically fill the scene is 7.68 / 2.0 = 3.84.

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