How to apply filters effects to an rectangle area of image/group.

Solar2D Advanced Graphics
#1

I have a group of images at background layer.

I want to:

  1. Make  a rectangle sub area have filters effects
  2. On top of that filtered rectangle, add a non filtered text.

The problem is currently the filters effects are only apply to whole object.

How can I do this?

#2

Hi @xpol-vanci,

For this, you would probably need to capture the area you need to work with (using “captureBounds()” perhaps) then apply filter effects to that new object.

http://docs.coronalabs.com/api/library/display/captureBounds.html

Best regards,

Brent

#3

captureBounds will capture the filtered image as well.

So if my background if moving, the filtered area will have latency to catch up with the move.

Can I just use a OpenGL shader in side Corona?

#4

Hi @xpol-vanci,

I don’t understand what you are trying to accomplish. Can you post a screenshot, or describe this in full detail?

Thanks,

Brent

#5

Hi @xpol-vanci,

For this, you would probably need to capture the area you need to work with (using “captureBounds()” perhaps) then apply filter effects to that new object.

http://docs.coronalabs.com/api/library/display/captureBounds.html

Best regards,

Brent

#6

captureBounds will capture the filtered image as well.

So if my background if moving, the filtered area will have latency to catch up with the move.

Can I just use a OpenGL shader in side Corona?

#7

Hi @xpol-vanci,

I don’t understand what you are trying to accomplish. Can you post a screenshot, or describe this in full detail?

Thanks,

Brent