Love2D | Shader Tutorial 2 | Simple lighting

[@eliaswenner7847]

Waiting for tutorial 3 ...

[@eboatwright_]

still waiting...

[@the_joshi26]

Still waiting

[@eliaswenner7847]

I know the day will come ... I just feel it ...

[@theix9393]

Still waiting too, since i saw it in 2022 😂

[@DolioFoilio]

Waiting .... :(

[@calvinj7492]

at 16:57 instead of multiplying bby light.power, I found that: float distance = length(norm_pos - norm_screen) * screen.x / light.power; made the power value the pixel radius of the light. Multiplying just by power would mean a value of 1 lights up the whole screen.

[@stanosipenko7305]

For anyone wondering why there's max_num_lights and num_lights, the array size of lights has to be defined in advance, i.e. cannot change over time, so we pick an upper value (max_num_lights). The reason we also have num_lights is that we don't want to cycle through all of the array, if not all of the array is being used (e.g. we have 12 lights out of a maximum 16), because trying to get a light (lights[i]) that doesn't exist could either A. cause an error, or B. be slow.

[@eduardomezencio4057]

Great! But at the end, I would say the reason why the red light looks darker is that the underlying image is mostly green, having very little of the red component. In a mostly red image, the green light would look darker.

[@Xenthera]

Hey this is really helpful, can you do the third tutorial?

[@lonochka9634]

Up!

[@flamendless]

You could do this to automatically send stuffs to the shader! local n = 0 function addLight(t) --t = { --position = {x,y}, --diffuse = {1,1,1}, --power = 128, --} n = n + 1 for key, value in pairs(t) do shader:send(("lights[%i].%s"):format(n, key), value) end end

[@SkyVaultGames]

I really like that solution, ill be doing something very similar in the next episode, thanks!

[@thomaszito3019]

when i copied this there was an invisible character that broke the code. you're also sending a shader into lights[1] before lights[0]. Some changes to your function, and in love.draw, and the shader. In the glsl use vec2 screen = vec2(love_ScreenSize), so you don't need to send tthat in draw anymore // glsl change vec2 screen = vec2(love_ScreenSize); n = 0 function addLight(t) local shader = t.shader t.shader=nil for key, value in pairs(t) do shader:send(("lights[%i].%s"):format(n, key), value) end n = n + 1 end

[@dill__pickles]

Was really looking forward to this! Thanks!

[@dontrobthemachina3774]

Love the video, really looking forward to part 3!

[@ccgb92]

i'm learning love2d (from godot), your tutorials are awesome man! appreciate it so much

[@shekhawat5917]

Part 3 ???

[@flamendless]

This would be cooler if it's possible to use different shapes like cone from texture instead of just circular one

[@thomaszito3019]

Neat. Part 3?

[@speakki]

I could be mistaken, but I believe the power here works in inverse? The power you add, the darker it gets in the scene. I'm not sure how to fix it.

[@leeroynewman]

Pretty good video, thanks for making it.

[@DjSapsan]

What ELO in AoE do you have?

[@yimoawanardo]

Nice KDE desktop icon there ^^

[@johnpayne791]

Thank you for the tutorial, it helps a lot. Also what operating system are you using, it looks amazing.

[@SkyVaultGames]

John Payne glad it helped! Im on manjaro Linux using kde plasma :)

[@eliaswenner7847]

Linuxpower !!!

[@d33talion]

Thanks! Very helpful video

[@flamendless]

Just send the love screen size at load, because it doesnt change it value

[@SkyVaultGames]

brbl thats a good idea! If you do that you also want to send it each time the screen size changes.

[@miguelcarmona5273]

Great video!

[@SkyVaultGames]

Thank you!

[@_modiX]

I'm waiting for a good vertex shader tutorial

[@АлексейЮрченко-т5л]

Thanks!

[@jeremyskeleton6749]

thanks !