Bit of cleanup and moving stuff around

Assets/Resources/Shaders/FSRTest.shader

@@ -1,40 +0,0 @@
-Shader "FSR2/FSRTest" 
-{
-	Properties 
-	{
-		_MainTex ("Texture", 2D) = "" {} 
-	}
-	SubShader {
-		
-		Pass {
- 			ZTest Always Cull Off ZWrite Off
-
-			HLSLPROGRAM
-			// include the unityCG.cginc
-			#include "UnityCG.cginc"
-
-			// The default vert setup used in all the shaders
-			struct v2f {
-				float4 vertex : SV_POSITION;
-				float2 texCoord : TEXCOORD0;
-			};
-
-			#pragma vertex vert_img
-			#pragma fragment frag
-
-			sampler2D _MainTex;
-			sampler2D _CameraDepthTexture;
-			sampler2D_half _CameraMotionVectorsTexture;
-
-			fixed4 frag(v2f i) : COLOR
-			{
-				return tex2D(_MainTex, i.texCoord).rgba;
-				return fixed4(((tex2D(_CameraMotionVectorsTexture, i.texCoord) + 0.5f) / 2.0f).xyz, 1.0f);
-				//return tex2D(_CameraDepthTexture, i.texCoord).rrra;
-			}
-			ENDHLSL
-
-		}
-	}
-	Fallback Off 
-}

Assets/Resources/Shaders/FSRTest.shader.meta

@@ -1,10 +0,0 @@
-fileFormatVersion: 2
-guid: ad642f5802989914585b30523ba86017
-ShaderImporter:
-  externalObjects: {}
-  defaultTextures: []
-  nonModifiableTextures: []
-  preprocessorOverride: 0
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/Fsr2.cs

@@ -59,6 +59,11 @@ namespace FidelityFX
             renderHeight = (uint)(displayHeight / ratio);
         }
         
+        public static float GetMipmapBiasOffset(float renderScale)
+        {
+            return Mathf.Log(renderScale, 2.0f) - 1.0f;
+        }
+
         public static int GetJitterPhaseCount(int renderWidth, int displayWidth)
         {
             const float basePhaseCount = 8.0f;

Assets/Scripts/Fsr2Controller.cs

@@ -47,7 +47,7 @@ public class Fsr2Controller : MonoBehaviour
         {
             if (_copyDepthMat == null)
             {
-                var copyDepthShader = Fsr2.GlobalCallbacks.LoadShader("Shaders/FSR2CopyDepth");
+                var copyDepthShader = Fsr2.GlobalCallbacks.LoadShader("Shaders/FSR2_CopyDepth");
                 _copyDepthMat = new Material(copyDepthShader);
             }
 
@@ -62,7 +62,7 @@ public class Fsr2Controller : MonoBehaviour
         {
             if (_copyMotionMat == null)
             {
-                var copyMotionShader = Fsr2.GlobalCallbacks.LoadShader("Shaders/FSR2CopyMotionVectors");
+                var copyMotionShader = Fsr2.GlobalCallbacks.LoadShader("Shaders/FSR2_CopyMotionVectors");
                 _copyMotionMat = new Material(copyMotionShader);
             }
 
@@ -88,6 +88,7 @@ public class Fsr2Controller : MonoBehaviour
         // TODO: enable motion vector jitter cancellation or not?
         _context = Fsr2.CreateContext(DisplaySize, RenderSize);
 
+        // TODO: do we need a depth buffer for the output? We will need depth & motion vectors for subsequent post-FX. How should FSR2 output these?
         _outputRT = new RenderTexture(DisplaySize.x, DisplaySize.y, 24, RenderTextureFormat.ARGBHalf) { enableRandomWrite = true };
         _outputRT.Create();
 
@@ -122,11 +123,11 @@ public class Fsr2Controller : MonoBehaviour
     public void UpdateInputResources(RenderTexture src)
     {
         // I hate having to allocate extra RTs just to duplicate already existing Unity render buffers, but AFAIK there is no way to directly address these buffers individually from code 
-        var renderSize = RenderSize;
-        _colorRT = RenderTexture.GetTemporary(renderSize.x, renderSize.y, 0, RenderTextureFormat.ARGBHalf);
-        _depthRT = RenderTexture.GetTemporary(renderSize.x, renderSize.y, 0, RenderTextureFormat.RFloat);
-        _motionVectorsRT = RenderTexture.GetTemporary(renderSize.x, renderSize.y, 0, RenderTextureFormat.RGHalf);
+        _colorRT = RenderTexture.GetTemporary(src.width, src.height, 0, RenderTextureFormat.ARGBHalf);
+        _depthRT = RenderTexture.GetTemporary(src.width, src.height, 0, RenderTextureFormat.RFloat);
+        _motionVectorsRT = RenderTexture.GetTemporary(src.width, src.height, 0, RenderTextureFormat.RGHalf);
         
+        // TODO: might be able to combine color + depth into a single RT and separate them out using RenderTextureSubElement
         Graphics.Blit(src, _colorRT);
         Graphics.Blit(src, _depthRT, CopyDepthMaterial);
         Graphics.Blit(src, _motionVectorsRT, CopyMotionVectorsMaterial);

Assets/Scripts/SubsampleTest.cs

@@ -61,13 +61,13 @@ public class SubsampleTest : MonoBehaviour
         
         // Adjust texture mipmap LOD bias by log2(renderResolution/displayResolution) - 1.0;
         // May need to leave this to the game dev, as we don't know which textures do and don't belong to the 3D scene
-        float biasOffset = GetMipmapBiasOffset();
+        float biasOffset = Fsr2.GetMipmapBiasOffset(renderScale);
         Fsr2.GlobalCallbacks.ApplyMipmapBias(biasOffset);
     }
 
     private void OnDisable()
     {
-        float biasOffset = GetMipmapBiasOffset();
+        float biasOffset = Fsr2.GetMipmapBiasOffset(renderScale);
         Fsr2.GlobalCallbacks.ApplyMipmapBias(-biasOffset);
         
         gameCamera.targetTexture.Release();
@@ -77,11 +77,6 @@ public class SubsampleTest : MonoBehaviour
         outputCamera.enabled = false;
     }
 
-    public float GetMipmapBiasOffset()
-    {
-        return Mathf.Log(renderScale) - 1.0f;
-    }
-
     private void Update()
     {
         outputCamera.enabled = gameCamera.enabled;