Light2d is showing gray instead of invisible

jackhen

I want to use a light2d to make all but part of my object invisible, but when I put the "invisible" object into another scene, it is a gray square the same size as the light2d (second image)

mangis

Your Light2D "Light Mask" setting is set to layer 0. The setting is that grid of tiny buttons on the bottom right in the visibility-tab of the inspector, not to be confused with "Mode: Mask".

Your background sprite probably has the same Light Mask setting and is therefore masked along with your sprite, revealing the default grey clear color behind it.

So you could just change your sticker sprites and light2d to use another light mask layer, make sure you turn off layer 0 also.

jackhen

@mangis said: Your Light2D "Light Mask" setting is set to layer 0. The setting is that grid of tiny buttons on the bottom right in the visibility-tab of the inspector, not to be confused with "Mode: Mask".

Your background sprite probably has the same Light Mask setting and is therefore masked along with your sprite, revealing the default grey clear color behind it.

So you could just change your sticker sprites and light2d to use another light mask layer, make sure you turn off layer 0 also.

Thanks! I can only get it to work though by changing the light mask layer of the background sprite. having my background on layer 1 and light2d on layer 2 still blocks out the background. is there a certain order they have to be in? Id like to keep all things I dont want affected on the default light layer if possible.

mangis

@jackhen said: is there a certain order they have to be in? Id like to keep all things I dont want affected on the default light layer if possible.

Ah, sorry I pointed you to the incorrect setting. The Light2D layer should be set in the Item Cull Mask in Range-tab

The mode:mask functionality is still a bit unstable if I've understood correctly so this might just be a problem of Godot itself also. As soon as you have more than one Light2D with mode:mask, you may run into problems.

To have truly reliable masking like this, it might be better to: - Render your sprites in a Viewport - Use the Viewport as a ViewportTexture on a Sprite to display the result - Mask that Sprite with a shader