LÖVE

giann wrote:If your character cast a shadow and your light is exactly on top of it, it will block out the light.
You need to position your light just at the edge of your character image.
When you change your light direction, you also need to move the light to the opposite edge of your character image in that direction.

soulaymenc wrote:Uhh, something wierd just happened, when I remove all light sources, when I move a sprite, it keeps redrawing and leave traces (just like when windows xp windows stops responding, and you move it with your mouse).

It only happens when I remove all lightsources. (It kinda happens with lightsources on, but the traces slowly fades away). Any idea how to fix it?

joedono wrote:I'm having a really weird issue. My top-down exploration game includes a character with a flashlight. When I start the flashlight with this code, it doesn't show up until I change the direction of the light. Then, if I try to swing the flashlight back to that direction, it vanishes again.

Code: Select all

self.flashLight:setDirection(math.pi * 3/4);
self.flashLight:setAngle(math.pi * 1/2);

However, changing the angle of the flashlight to math.pi * 3/8 seems to solve the problem, but I'd like a 45degree light if I can manage it.

I'll attach the project I have so far. Use WASD to move, the arrow keys to swing the flashlight around, and space to turn the flashlight on and off. If you try to shine the flashlight to the lower-left, it disappears when it gets there.

giann wrote:Do you think there's room for improvements in terms of performances ?
My FPS drops really quickly the more I add bodies and lights.

Edit: Another weird issue is that FPS seems to drops relative to the screen size regardless of the number of lights/bodies.

800x450: 50fps
1280x720: 20fps
with the same number of lights/bodies

drunken_thor wrote:The main problem is that there is no background to your world. The problem is that the shadows need to be drawn to something so there needs to be a background of some sort. That is why in most of the examples it draws a rectangle to the background. if you simply draw a background rectangle it will all go away

drunken_thor wrote:

giann wrote:Do you think there's room for improvements in terms of performances ?
My FPS drops really quickly the more I add bodies and lights.

Edit: Another weird issue is that FPS seems to drops relative to the screen size regardless of the number of lights/bodies.

800x450: 50fps
1280x720: 20fps
with the same number of lights/bodies

Please try the most recent version of the code. Through testing I realized that stenciling narrows the amount of area that shaders are applied, so by stenciling the area of each light I was able to get significant speed boosts. HOWEVER I have found that you still need to be wise how you use your lights and use of objects. Things turn out nice with a few lights and large shadow bodies (walls.)

giann wrote: Shadows are not blurred anymore.
Also bloom is not working even though drawBloom is called.