Make a sprite transparent only when occluding another sprite

harpyeagle

Hi, I have an object in a scene that has a sprite. Other objects may walk on top of it, however when they do so I want them to become semi-transparent so they do not occlude the underlying object. Is it possible to achieve this with CanvasItemMaterials and layering sprites on different z_index values?

...if I do have to resort to shaders, could someone give me a pointer on how to approach this? My knowledge of shaders is limited to the very basics.

flame-cube

Not 100% sure, but I think there may be an alpha variable in the sprite? If so you could use that

fire7side

The modulate.a property of the sprite will make it transparent or semi-transparent. I put a modulate.a =.5 in the ready function to test it. Don't know how you would do it if it could be any object behind any other object, but if it was just the player, you could run a raycast from the camera to the player and change the property of anything that collided. Oh, I was thinking 3d, anyway, you should be able to come up with something if there is an overlap.

cybereality

In 2D you could use area overlap or overlapping bodies and check the z index to see if they are in front.