I see, thank you. I tried void effect, but not without the arguments. Is there a way to get the pixel position? I think I can pipe in and do everything else custom.

Just realized it uses 70% of my GTX1080Ti running at 240fps. I had no idea.

I am trying to do some deferred rendering stuff and I need to write to multiple canvases at the same time. I saw that you can do love.graphics.setCanvas(canvas1, canvas2) and to test, I copied the example code from https://love2d.org/wiki/love.graphics.newShader local pixelcode = [[ void effects(vec...

Okay yeah, it is a bit ridiculous to be running approximately 512 atans and 256 inversesqrts per pixel per frame. https://i.gyazo.com/362266e984cd2628cc2ccf99d2422ff6.png Of course, it could be worse. I could be integrating over the pixel https://i.gyazo.com/4506af81e738fa9f56f2990837bbdc8a.png I'll...

So I solved a little double integral to see how much light gets to a point, assuming you have a hemisphere of infinite size where light is coming in uniformly from all directions except the circular base, and a rectangle on a plane aligned with the base of that hemisphere. The result is pretty aweso...

Thanks for the help. What I'll do is I'll continue resending the entire array 60 times per second or whatever (ugh). It's not that slow, but it's still just gross conceptually.

Love2d really needs to add some kind of support for that.

So currently, I have a deal where I edit an array in Lua, and then I need to update it in the shader. I generally only change one element of the array, yet I have to resend the entire array just to change the one index. At least this is what I think. I've tried :send("lower[127]",{x,y}) bu...

Yes, that's exactly what I did!

Okay. So I thought, "wouldn't it be fun if I wrote a Lua program to program a hardcoded binary search tree in GLSL?" So I did it, and then before I implemented stuff other than the sphere solver, I realized that you only have a small number of words for gpu instructions to be stored. So yo...