Does empty space (transparent) in an image occupy some texture memory?

Solar2D General Questions/Discussion
#1

For example, a 100 x 100 image and now I add some empty space (transparent) to that image so the image is exactly the same but the width is 500x100.

When putting this 500x100 image on the screen, does it occupy more texture memory than the 100x100 image? by how much? 

#2

Hi,

read this to known how much memory consume images:

https://docs.coronalabs.com/guide/basics/optimization/index.html#texturemem

#3

Thanks for the link.

So is it safe to say the transparent space also occupies texture memory just like other in-transparent areas?

#4

Hi Joe,

Yes, transparent space also occupies texture memory, just like other in-transaparent areas. The amount of memory is basically defined by the number of pixels horizontally multiplied by the number of pixels vertically. Wether the pixels are transparent or not is irrelevant.

Now, when you start putting these images in spritesheets in some scenarios the transparent space is cropped away, saving texture memory.

#5

Hi,

read this to known how much memory consume images:

https://docs.coronalabs.com/guide/basics/optimization/index.html#texturemem

#6

Thanks for the link.

So is it safe to say the transparent space also occupies texture memory just like other in-transparent areas?

#7

Hi Joe,

Yes, transparent space also occupies texture memory, just like other in-transaparent areas. The amount of memory is basically defined by the number of pixels horizontally multiplied by the number of pixels vertically. Wether the pixels are transparent or not is irrelevant.

Now, when you start putting these images in spritesheets in some scenarios the transparent space is cropped away, saving texture memory.