Reorganize assets folder and tweak shaders

Moved rim shading and underwater fog to the common cginc

.gitignore

@@ -1,10 +1,8 @@
 # Unity Project Directories
 Assets/*
-!Assets/Shaders/
+!Assets/ConformalDecals
-!Assets/Textures/
+Assets/ConformalDecals/Fonts
-!Assets/Scripts/
+Assets/ConformalDecals/Parts
-!Assets/UI/
-!Assets/ConformalDecals/
 KSP/
 Library/
 Logs/
@@ -12,6 +10,9 @@ Packages/
 ProjectSettings/
 Temp/
 
+# Autogenerated shaders
+Assets/ConformalDecals/Shaders/Generated/*.shader
+
 # Unity Assetbundle Manifest Files
 GameData/ConformalDecals/Resources/Resources
 GameData/ConformalDecals/Resources/*.manifest
@@ -41,9 +42,6 @@ ExportedObj/
 *.opendb
 *.VC.db
 
-# Autogenerated shaders
-Assets/Shaders/Generated/*.shader
-
 # Binaries and support files
 Source/ConformalDecals/dlls
 Source/ConformalDecals/bin
@@ -58,3 +56,4 @@ Source/ConformalDecals/bin
 obj
 *.swp
 @thumbs
+

Assets/ConformalDecals/Shaders/DecalsCommon.cginc

@@ -1,6 +1,4 @@
 #ifndef DECALS_COMMON_INCLUDED
-// Upgrade NOTE: excluded shader from DX11; has structs without semantics (struct v2f members screenUV)
-#pragma exclude_renderers d3d11
 #define DECALS_COMMON_INCLUDED
 
 #include "AutoLight.cginc"
@@ -117,10 +115,6 @@ struct v2f
     #ifdef UNITY_PASS_FORWARDADD
         UNITY_LIGHTING_COORDS(5,6)
     #endif //UNITY_PASS_FORWARDADD
-
-    #ifdef UNITY_PASS_DEFERRED
-        float3 screenUV : TEXCOORD5;
-    #endif
 };
 
 
@@ -138,6 +132,8 @@ inline float CalcMipLevel(float2 texture_coord) {
     return 0.5 * log2(delta_max_sqr);
 }
 
+// Decal bounds distance function
+// takes in a world position, world normal, and projector normal and outputs a unitless signed distance from the
 inline float BoundsDist(float3 p, float3 normal, float3 projNormal) {
     float3 q = abs(p - 0.5) - 0.5; // 1x1 square/cube centered at (0.5,0.5)
     //float dist = length(max(q,0)) + min(max(q.x,max(q.y,q.z)),0.0); // true SDF
@@ -212,14 +208,6 @@ v2f vert(appdata_decal v)
 
     // pass shadow and, possibly, light cookie coordinates to pixel shader
     UNITY_TRANSFER_LIGHTING(o, 0.0);
-
-    #ifdef UNITY_PASS_DEFERRED
-        o.screenUV = o.pos.xyw;
-
-        // Correct flip when rendering with a flipped projection matrix.
-        // (I've observed this differing between the Unity scene & game views)
-        o.screenUV.y *= _ProjectionParams.x;
-    #endif
     return o;
 }
 
@@ -279,14 +267,21 @@ SurfaceOutput frag_common(v2f IN, out float3 viewDir, out UnityGI gi) {
     // initialize surface output
     o.Albedo = 0.0;
     o.Emission = 0.0;
-    o.Specular = 0.0;
+    o.Specular = 0.4;
-    o.Alpha = 0.0;
+    o.Alpha = _DecalOpacity;
     o.Gloss = 0.0;
     o.Normal = fixed3(0,0,1);
 
     // call surface function
     surf(i, o);
 
+    // apply KSP fog. In the deferred pass this is a no-op
+    o.Albedo = UnderwaterFog(i.worldPosition, o.Albedo).rgb;
+
+    // apply KSP rim lighting
+    half rim = 1.0 - saturate(dot(normalize(i.viewDir), o.Normal));
+    o.Emission += o.Emission = (_RimColor.rgb * pow(rim, _RimFalloff)) * _RimColor.a;
+
     // compute world normal
     float3 worldN;
     worldN.x = dot(_unity_tbn_0, o.Normal);

Assets/ConformalDecals/Shaders/Generated/StandardDecal.cginc

@@ -3,15 +3,13 @@
 
 void surf(DecalSurfaceInput IN, inout SurfaceOutput o) {
     float4 color = tex2D(_Decal, IN.uv_decal);
+    o.Albedo = color.rgb;
     o.Specular = 0.4;
     o.Gloss = _Shininess;
-    o.Albedo = UnderwaterFog(IN.worldPosition, color).rgb;
-    o.Alpha =  _DecalOpacity;
 
     #ifdef DECAL_BASE_NORMAL
         float3 normal = IN.normal;
         float wearFactor = 1 - normal.z;
-        float wearFactorAlpha = saturate(_EdgeWearStrength * wearFactor);
         o.Alpha *= saturate(1 + _EdgeWearOffset - saturate(_EdgeWearStrength * wearFactor));
     #endif
 
@@ -24,10 +22,6 @@ void surf(DecalSurfaceInput IN, inout SurfaceOutput o) {
         o.Specular = specular;
     #endif
 
-
-    half rim = 1.0 - saturate(dot(normalize(IN.viewDir), o.Normal));
-    o.Emission = (_RimColor.rgb * pow(rim, _RimFalloff)) * _RimColor.a;
-
     #ifdef DECAL_EMISSIVE
         o.Emission += tex2D(_Emissive, IN.uv_emissive).rgb * _Emissive_Color.rgb * _Emissive_Color.a;
     #endif

Assets/ConformalDecals/Shaders/Generated/StandardDecal.shader.template

@@ -136,6 +136,10 @@
             #pragma multi_compile_local __ DECAL_BASE_NORMAL
             //{{ self.pragmas() }}
 
+            //{% block prepass_skip_variants %}
+            #pragma skip_variants DECAL_SPECMAP DECAL_EMISSIVE
+            //{% endblock %}
+
             #define DECAL_PREPASS
 
             //{{ self.body() }}

Assets/Scripts/DecalProjectorTest.cs

@@ -1,46 +0,0 @@
-using System;
-using UnityEngine;
-
-[ExecuteInEditMode]
-public class DecalProjectorTest : MonoBehaviour
-{
-    public GameObject target = null;
-    public Material targetMaterial = null;
-    public MeshRenderer targetRenderer;
-
-
-    public float aspectRatio = 1.0f;
-    public float size = 1.0f;
-    public float factor = 1.0f;
-
-    private Matrix4x4 _projectionMatrix;
-    private Matrix4x4 _OrthoMatrix;
-
-    private int _matrixID;
-    private int _normalID;
-    public int _tangentID;
-    
-    // Start is called before the first frame update
-    void Awake()
-    {
-        _projectionMatrix = Matrix4x4.identity;
-        targetRenderer = target.GetComponent<MeshRenderer>();
-    }
-
-    // Update is called once per frame
-    void Update()
-    {
-        Vector3 pos =new Vector3( 0.5f ,0.5f, 0);
-        Vector3 scale = new Vector3(1 / size, 1 / (aspectRatio * size), 1);
-        _OrthoMatrix.SetTRS(pos, Quaternion.identity, scale);
-        //Debug.Log(_OrthoMatrix);
-        var targetToProjector = transform.worldToLocalMatrix * targetRenderer.localToWorldMatrix;
-        var projectorToTarget = targetRenderer.worldToLocalMatrix * transform.localToWorldMatrix;
-        _projectionMatrix = _OrthoMatrix * targetToProjector;
-        
-        targetMaterial.SetMatrix("_ProjectionMatrix", _projectionMatrix);
-        targetMaterial.SetVector("_DecalNormal", projectorToTarget.MultiplyVector(Vector3.back).normalized);
-        targetMaterial.SetVector("_DecalTangent", projectorToTarget.MultiplyVector(Vector3.right).normalized);
-    }
-
-}

Assets/Scripts/TextRenderTest.cs

@@ -1,119 +0,0 @@
-using System.Collections;
-using System.Collections.Generic;
-using TMPro;
-using UnityEngine;
-using UnityEngine.Rendering;
-
-public class TextRenderTest : MonoBehaviour {
-    //[InspectorButton("go")] public bool button;
-
-    public Camera _camera;
-
-    public GameObject _cameraObject;
-
-    public TextMeshPro _tmp;
-
-    public Material _blitMaterial;
-
-    public Material _targetMaterial;
-
-    public                  RenderTexture renderTex;
-    private                 float         pixelDensity   = 8;
-    private                 int           MaxTextureSize = 4096;
-    private static readonly int           Decal          = Shader.PropertyToID("_Decal");
-
-    public const TextureFormat       TextTextureFormat       = TextureFormat.RG16;
-    public const RenderTextureFormat TextRenderTextureFormat = RenderTextureFormat.R8;
-
-    // Start is called before the first frame update
-    void Start() {
-        Debug.Log("starting...");
-
-        StartCoroutine(OnRender());
-        var thing = new GameObject();
-        thing.AddComponent<TextMeshPro>();
-    }
-
-    // Update is called once per frame
-    void Update() { }
-
-    private IEnumerator OnRender() {
-        Debug.Log("starting...2");
-
-        // calculate camera and texture size
-        _tmp.ForceMeshUpdate();
-        var mesh = _tmp.mesh;
-        mesh.RecalculateBounds();
-        var bounds = mesh.bounds;
-        Debug.Log(bounds.size);
-
-        var width = bounds.size.x * pixelDensity;
-        var height = bounds.size.y * pixelDensity;
-
-        var widthPoT = Mathf.NextPowerOfTwo((int) width);
-        var heightPoT = Mathf.NextPowerOfTwo((int) height);
-
-        if (widthPoT > MaxTextureSize) {
-            widthPoT /= widthPoT / MaxTextureSize;
-            heightPoT /= widthPoT / MaxTextureSize;
-        }
-
-        if (heightPoT > MaxTextureSize) {
-            widthPoT /= heightPoT / MaxTextureSize;
-            heightPoT /= heightPoT / MaxTextureSize;
-        }
-
-        widthPoT = Mathf.Min(widthPoT, MaxTextureSize);
-        heightPoT = Mathf.Min(heightPoT, MaxTextureSize);
-
-        var widthRatio = widthPoT / width;
-        var heightRatio = heightPoT / height;
-
-        var sizeRatio = Mathf.Min(widthRatio, heightRatio);
-
-        Debug.Log(sizeRatio);
-
-        int scaledHeight = (int) (sizeRatio * height);
-        int scaledWidth = (int) (sizeRatio * width);
-
-        Debug.Log($"width = {scaledWidth}");
-        Debug.Log($"height = {scaledHeight}");
-
-        _camera.orthographicSize = scaledHeight / pixelDensity / 2;
-        _camera.aspect = (float) widthPoT / heightPoT;
-
-        _cameraObject.transform.localPosition = new Vector3(bounds.center.x, bounds.center.y, -1);
-
-        var halfHeight = heightPoT / pixelDensity / 2 / sizeRatio;
-        var halfWidth = widthPoT / pixelDensity / 2 / sizeRatio;
-        var matrix = Matrix4x4.Ortho(bounds.center.x - halfWidth, bounds.center.x + halfWidth,
-            bounds.center.y - halfHeight, bounds.center.y + halfHeight, -1, 1);
-
-        // setup texture
-        var texture = new Texture2D(widthPoT, heightPoT, TextTextureFormat, true);
-        _targetMaterial.SetTexture(Decal, texture);
-
-
-        // setup render texture
-        renderTex = RenderTexture.GetTemporary(widthPoT, heightPoT, 0, TextRenderTextureFormat, RenderTextureReadWrite.Linear, 1);
-        renderTex.autoGenerateMips = false;
-
-        RenderTexture.active = renderTex;
-        GL.PushMatrix();
-        GL.LoadProjectionMatrix(matrix);
-        _blitMaterial.SetPass(0);
-        Graphics.DrawMeshNow(mesh, Matrix4x4.identity);
-        GL.PopMatrix();
-
-        // setup material
-        _blitMaterial.mainTexture = _tmp.font.atlas;
-
-        yield return null;
-
-        RenderTexture.active = renderTex;
-        texture.ReadPixels(new Rect(0, 0, widthPoT, heightPoT), 0, 0, true);
-        texture.Apply(false, true);
-
-        RenderTexture.ReleaseTemporary(renderTex);
-    }
-}