New 3d Perspective Shader

[NaitorStudios]

btw @NaitorStudios - did you actually receive the test archive with gimp files etc. from my latest shader topic?

Yes, but I've been extremely busy with 5 paid projects...
I often do a port or something that doesn't require thinking too much whenever I'm too burned out.
In all cases, from what I've seen converting LCh seems really messy, I'm not sure if that would perform well enough for it to be applied to multiple instances.
Image editing softwares have these kind of things cause they don't need to render 60 times per second or more, so realtime speed isn't really a concern for something like Gimp or Photoshop...

Found these snippets of code about the conversion:
https://www.chilliant.com/rgb2hsv.html

[MuddyMole]

Sorry NaitorStudios, you're going to hate me, but I've updated the shader...

Download: https://1drv.ms/u/s!Atq7cUIJ7uextFjh...aLfnH?e=bdH629 (version 1.1)

Changes:
+ Commented all shader code (in case anyone's interested).
+ Should now work properly with non-square textures.
+ Added adjustable ambient lighting and a single configurable directional light source.

[NaitorStudios]

Looks fantastic!
I've already got a half working DX11 port, seems like the lighting color is causing some issues there, it gets red-ish and doesn't seem to react to the rotation, I should be able to fix it tho.

[fnkycoldmadeanr]

Not sure why there are visual artifacts at the edges...

Due to the way the gpu samples pixels in blocks of 4 and texture filtering.
Changing "MinFilter/MagFilter = Linear" to "Point" removes the artifacts.
Here's a good video/channel
https://www.youtube.com/watch?v=1HTMoCaY0xw

[NaitorStudios]

But would also remove the bilinear filtering...
The texture would be "shimmering"

[NaitorStudios]

Here's the DX11 Port
Also fixed the light intensity that wasn't connected to anything...

Edit: Removed the unnecessary parameter.

[MuddyMole]

Here's the DX11 Port
Also fixed the light intensity that wasn't connected to anything...

Oh, I just forgot to remove the light intensity parameter from the xml - I was testing it with that first, before swapping to a float4 colour instead. There's no reason to have both, since a lighter colour is the same as a more intense light anyway (unless you want super intense lights, I suppose).
Cheers though

[aenever]

Just wondering like a playing card, is there a way to have two different sides to a rotating card (front and back)?

[MuddyMole]

Just wondering like a playing card, is there a way to have two different sides to a rotating card (front and back)?

I've modified the shader to add an image parameter for the reverse side of the object. Lighting still only works correctly for the front side (this is proving hard to fix), so if you're using both sides, you will need to disable it by setting the ambient light to pure white, and the directional light to pure black.

Download: https://1drv.ms/u/s!Atq7cUIJ7uextFlv...BbQ9g?e=R6uFKz (version 1.2)

[MuddyMole]

I do believe I've finally cracked the lighting problem!



Just need to fix up the code a bit (it's full of hacks and the remnants of failed attempts right now lol), and then I should be able to provide a link to the file soon...