Post Processing Effects

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Thread for questions, opinions, suggestions and support.​

 

Do you need Post Processing Ultimate for this package to work? It should probably be mentioned it is needed on the asset store if this is the intended use.

Code (CSharp):

1. Shader error in 'NTEC/Screen/Invert': failed to open source file: '../../Post Processing Ultimate/Functions/Invert.hlsl' at line 15 (on d3d11)
2.  
3. Shader error in 'NTEC/Screen/Blur': failed to open source file: '../../Post Processing Ultimate/Functions/Append2.hlsl' at line 15 (on d3d11)
4.  

 

Hello, no You absolutely don't need it. I just somehow managed to forgot changing the path names and including the function folder. I'm deeply sorry about it, it will be fixed in the next update, please contact me via support mail and I will send You necessary files.

 

Hi. Does Post Processing Ultimate work with HDRP?

 

It's just a creator, so it works with HDRP as much as Post Processing Stack works. From my experience - there are some specific things that doesn't work. But overall it should be compatible. Please firstly check if standard Stack effects work on Your platform.

 

Hello,

I just bought this pack to check it out. It seems to be working great when using them for the main camera. However, when I use them for a camera that renders onto a Render Texture, they just output white. Have tried with several of them with same result.

When I use the post processing filters from Unity in Post Processing Stack V2, they work fine when using a Render Texture. So the Render Texture itself is not the problem.

Any chance you could get this fixed?

 

Maybe You need to try to edit effect .cs file to directly render to RenderTexture? It should work. I've never been testing them out of the main camera. Probably stack is not supporting custom effects for other outputs.

 

When I look at the docs for writing post processing effects, then your .cs files looks fine. However the shaders themselves seem to not fully follow the recommended setup:

https://docs.unity3d.com/Packages/com.unity.postprocessing@2.1/manual/Writing-Custom-Effects.html

I was able to get one of your shaders working with RenderTextures by doing the following:

1) Update the shader to follow the recommended format from the above Unity docs.

2) Declare the CameraOutput variable like this:

float4 CameraOutput = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, i.texcoord);


Would be great if you could update your shader pack to do this as well.

Thanks.

 

Hi again,

I also noticed that your shaders aren't utilizing the "blend" parameter, which they should according to the Unity docs. This is used for blending between post process volumes.

 

That's very interesting, I definitely need to check docs again. Could You tell me more about that format recommendations that my effects should follow? What exactly seems wrong for You?

 

I took the sample shader from the Unity Docs, and replaced their fragment part with your. The "Pixelize" shader looks like this, and works on Render Textures as well as Main Camera:

Code (CSharp):

1. Shader "Custom/PostProcess/Pixelize"
2. {
3.     HLSLINCLUDE
4.  
5.         #include "Packages/com.unity.postprocessing/PostProcessing/Shaders/StdLib.hlsl"
6.  
7.         TEXTURE2D_SAMPLER2D(_MainTex, sampler_MainTex);
8.         float _Blend;
9.         uniform half _Horizontal;
10.         uniform half _Vertical;
11.  
12.         float4 Frag(VaryingsDefault i) : SV_Target
13.         {
14.             float4 CameraOutput = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, i.texcoord);
15.             CameraOutput.rgb = ((_Horizontal && _Vertical) ? SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, half2((floor((i.texcoordStereo.x * _Horizontal)) / _Horizontal),(floor((i.texcoordStereo.y * _Vertical)) / _Vertical))).rgb : SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, i.texcoordStereo).rgb);
16.             return CameraOutput;
17.         }
18.  
19.     ENDHLSL
20.  
21.     SubShader
22.     {
23.         Cull Off ZWrite Off ZTest Always
24.  
25.         Pass
26.         {
27.             HLSLPROGRAM
28.  
29.                 #pragma vertex VertDefault
30.                 #pragma fragment Frag
31.  
32.             ENDHLSL
33.         }
34.     }
35. }
36.  

I haven't yet integrated the blend variable, as they also recommend.

 

I will definitely work on that. Unfortunately I'm quite busy in January and February, but I will try to do by best and as fast as I can.

 

Hey, it's the end of February, so as I have promised over a month ago I've stared working on it. That's why I need more information about the RenderTexture You're using. I've tried rendering pixelize effect to the RT and it worked fine. So I need more information in order to reconstruct Your exact situation, so I would be able to test what exactly should be changed in my shaders in order to work with Render Textures configured as in Your case.

I'm really sorry that it took so long.