Preventing lighting from being drawn on the background

[micha]

How about this solution: Draw the foreground to a canvas, draw this canvas on screen. Then draw the shades, using the foreground canvas as a mask. See the wiki about stencils, at the bottom, there is a section about "Using an Image as a mask".

[Whatthefuck]

Code: Select all

    draw_background()
    love.graphics.setStencil(draw_foreground())
    draw_foreground()
    love.graphics.setStencil()

[wiki]love.graphics.setStencil[/wiki]
setStencil says you ONLY draw to where the stencil draws. (the stencil is just a function with stuff that is drawn)

I can't draw the background manually, remember? The background is the default background that comes with love2d, color of which you can modify via love.graphics.setBackgroundColor.

Though I could make my own background.

[Zer0]

I can't draw the background manually, remember? The background is the default background that comes with love2d, color of which you can modify via love.graphics.setBackgroundColor.

Though I could make my own background.

Let me fix the code then.

Code: Select all

    do_not_draw_background()
    love.graphics.setStencil(draw_foreground())
    draw_foreground()
    love.graphics.setStencil()

stencil should not mess with backgroundcolor

[micha]

Using a plain vanilla stencil will only work in restricted cases. If the foreground is made of image with "holes" in it (=transparency) then a stencil will not work. A stencil function always considers the full rectangle of an image.
A solution is given on the wiki-page on stencils (see post above).

[Whatthefuck]

Using a plain vanilla stencil will only work in restricted cases. If the foreground is made of image with "holes" in it (=transparency) then a stencil will not work. A stencil function always considers the full rectangle of an image.
A solution is given on the wiki-page on stencils (see post above).

Interesting, I actually tried doing what you linked me to prior to making this thread, but it did not work. I guess I did something wrong.
Will try again.

[Whatthefuck]

Guys, I love you, no homo. You helped me achieve exactly what I needed.

You fucking rock.

[micha]

Could you post a screenshot of the result? I am interested.

[Whatthefuck]

Could you post a screenshot of the result? I am interested.

https://love2d.org/imgmirrur/Ct7Ijsz.png

Using [img] tags doesn't even make it fit in here, so have a link instead. :V

[Whatthefuck]

Could you post a screenshot of the result? I am interested.

Sure.

https://love2d.org/imgmirrur/Ct7Ijsz.png

Using [img] tags doesn't even make it fit in here, so have a link instead. :V

Edit: oops, double post. D:

Here, have another one that I took while it was raining in-game: https://love2d.org/imgmirrur/J6CY1rx.png

[micha]

Thanks.