Antonov Suit - Physically Based Shader - First Release

@Charkes Is it possible for someone who doesn't know anything about shaders to add this(Link to LOD Group Implementation) Doc for LOD Group to the Antonov Suit shaders?

 

@rea Well I may be wrong but transparent object are not rendered into the depth buffer, except CutOut shader. Maybe some trick with render texture and layer with second camera could work.

@EpicLilg Currently not easy as I used standard shader as a base but I'm currently rewritting my shader to use surface shaders (instead of fragment) and I've added the cross/dither fade effect and it works pretty well.

 

Ah right, i forgot about the depth pass, hmm replacement shader might help here. . .

 

Was looking into the builting shaders and found this : "Internal-DeferredReflections.shader"

Means that I can now blend cubemap with SSR .

 

Yep that one, it was made for SSR too i guess. but i don't think we have a proper reflection buffer at the moment, they said it gonna be implemented in 5.2

 

Yeah, looks like it is not used yet sadly.

 

I made a new thread for ssr : http://forum.unity3d.com/threads/free-unity-5-screen-space-reflection.339114/

So if you have questions about it or wants to post some beauty shots, this is the place to be !

 

btw 5.2 beta is out with the new deferred reflection

 

Yeah but I can't use it, I'm not using pro anymore, I guess I'll just have to wait...

 

Hey @Charkes I'm currently modifying Unity 5's internal shading system (from Blinn-Phong to GGX) and I've now gotten to the stage where I need to change the IBL and the only proper convolution for GGX I've found is from Antonov Suit, but I'm having some problems. There's some serious color banding going on and the colors themselves change quite a bit when I convolve a cubemap. I know this is because of the rgbm encoding but I'm not sure if this is normal behaviour because I didn't use it with unity 4. Also I'm feeding them to reflection probes and even though unity is suppose to decode them the banding and colors remain pretty much the same. So I'm basically asking if your method of GGX cubemap convolution still works as it should in unity 5?

 

Hi @theprotonfactor,

Just to be sure, are you in linear color space ?

It was working fine in U4 afak but in U5 things has changed a bit. The rgbm decoding is not exactly the same as mine in U5.

If I'm correct U5 expect to use an .exr format (for HDR cubemap) and not .cubemap as I did on U4. Maybe if you can save the capture cubemap in .exr it will solve your issue but I'm not sure if it is even possible.

 

Hi @Charkes I am indeed in Linear color space, but I think you may be correct with the .cubemap file format issue. I've even replaced your rgbm encoding with unity's but no luck.

I remember reading that unity simply uses RenderToCubemap with phong convolution under the hood for reflection probes. Thus, it must be possible to somehow generate hdr cubemaps without actually creating .exr files.

I'm going to try RenderToCubemap into a half float render texture with its isCubemap flag set to true and pass that to your shader. I'll report back if it works and maybe share the modifications needed if people are interested?

 

Hi, unity 5.2 are release... but how to access in refflection pass ?

 

You can call it from "_CameraReflectionsTexture" in shader.