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[Ryuza]

Ryuza

Need a bit of help

So I'm trying to work something out in GM8 and need a bit of help. Basically I want to have a full black screen with a circle around the player that is subtracted from the background, kind of like a light in a dark room, but what I want to do differently is have the circle permanently reveal anything its passed over. I should be able to use draw_set_blend_mode(bm_subtract) to do the subtracting but I'm not sure if theres a way to permanently subtract with it.

Anyone have any idea how I might achieve this?

<- Koholint Island - MC Style  <- Link's Awakening Photo Recolors  <- Wind Waker 3D Resources <- Super Mario Bros Crossover

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[Sahittam]

Sahittam

Re: Need a bit of help

Try the gmk I attached. It's in GM7, but it should work in GM8. If not, then you can at least try out the exe and read the code (fully commented; maybe a bit too much). I've done it with surfaces and blend mode bm_subtract.

I hope this is what you wanted.

[Nubcake]

Nubcake

Re: Need a bit of help

An easier way i think would be to create a surface , draw it black then NOT keep drawing it every step.

Create

Code: [Select]

r = 50
s = surface_create(room_width,room_height)
surface_set_target(s)
draw_clear(c_black)
surface_reset_target()

Step

Code: [Select]

surface_set_target(s)
draw_set_blend_mode(bm_subtract)
draw_circle(mouse_x,mouse_y,r,0)
draw_set_blend_mode(bm_normal)
surface_reset_target()

Draw

Code: [Select]

draw_surface(s,0,0)


Nubcake now uses Purebasic!

[Ryuza]

Ryuza

Re: Need a bit of help

I think I got it figured out, thanks.

<- Koholint Island - MC Style  <- Link's Awakening Photo Recolors  <- Wind Waker 3D Resources <- Super Mario Bros Crossover

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