Anyone know how to do a decent fog effect in GM?, Fixed.

For a platformer, it's foggy, and there's a circle around the player that becomes opaque the further away from him it is.

Unfortunately I don't know how to achieve this.

Any suggestions?

This post has been edited by Thingy on Oct 31 2009, 01:36 PM

Can you show a pic of what you want? I'll try to make it.

sprite_set_alpha_from_sprite(sprite,mask)

sprite is the sprite to use
mask is a grayscale mask to use (white is fully transparent, black is no transparency)

Take the mask and make a gradient circle (going from white in the middle to black on the outside) and use that on a whatever color box for a sprite and then draw that centered over the character. Then, use draw_rectangle to draw a solid color all around it. Alternatively, you can just make a sprite the size of the view, although I wouldn't recommend it.

Can you elaborate on this please?

I tried the doing a sprite the size of the view first (since I originally had just a placeholder circle following the player around) but that didn't work (I had it draw the sprite, then use the alpha, is that right?) so I tried the rectangle thing, but I don't know what to do for colors 1, 2 and 3.


EDIT: also, while I have a topic, what's wrong with this code?

This post has been edited by Thingy on Oct 31 2009, 03:37 AM

if x < view_wview and x > view_xview and y < view_hview and y > view_yview then {
var = distance_to_object(object0)
sound_play(Step)
sound_volume(Step,100-var)
}

Whoops, sorry, I fixed it ages ago.