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add shader remap lerp

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This commit is contained in:
StarBeats 2025-09-11 11:04:02 +08:00
parent e0f03b3e7f
commit 7acb946c4e
10 changed files with 1109 additions and 456 deletions
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149
Assets/Scenes/Terminal/ShadowRemap.asset Normal file
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Assets/Scenes/Terminal/TerminalScene.unity
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Assets/Scripts/GradientTexture.cs Normal file
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using System;
using UnityEditor;
using UnityEngine;
using UnityEngine.Experimental.Rendering;
using System.Linq;
using System.Reflection;
using System.IO;
using Object = UnityEngine.Object;
using UnityEditor.Callbacks;
#if UNITY_EDITOR
using UnityEditor;
#endif
public interface IGradientTextureForEditor
{
void CreateTexture();
Texture2D GetTexture();
void LoadExisitingTexture();
}
/// <summary>
/// Main Asset, holds settings, create, hold and change Texture2D's pixels, name
/// </summary>
[CreateAssetMenu(fileName = "NewGradientName", menuName = "Texture/Gradient")]
public class GradientTexture : ScriptableObject, IEquatable<Texture2D>, ISerializationCallbackReceiver,
IGradientTextureForEditor
{
[SerializeField] Vector2Int _resolution = new Vector2Int(256, 256);
[SerializeField] bool _sRGB = true;
[SerializeField] AnimationCurve _verticalLerp = AnimationCurve.Linear(0, 0, 1, 1);
[SerializeField, GradientUsage(true)] Gradient _horizontalTop = GetDefaultGradient();
[SerializeField, GradientUsage(true)] Gradient _horizontalBottom = GetDefaultGradient();
[SerializeField, HideInInspector] Texture2D _texture = default;
public Texture2D GetTexture() => _texture;
public bool GetSRGB() => _sRGB;
public void SetSRGB(bool value)
{
_sRGB = value;
OnValidate();
}
int _width => _resolution.x;
int _height => _resolution.y;
public static implicit operator Texture2D(GradientTexture asset) => asset.GetTexture();
static Gradient GetDefaultGradient() => new Gradient
{
alphaKeys = new[] { new GradientAlphaKey(1, 1) },
colorKeys = new[]
{
new GradientColorKey(Color.black, 0),
new GradientColorKey(Color.white, 1)
}
};
public void FillColors(bool useRGB)
{
bool isLinear = QualitySettings.activeColorSpace == ColorSpace.Linear;
float tVertical = 0;
for (int y = 0; y < _height; y++)
{
tVertical = _verticalLerp.Evaluate((float)y / _height);
for (int x = 0; x < _width; x++)
{
float tHorizontal = (float)x / _width;
Color color = Color.Lerp(_horizontalBottom.Evaluate(tHorizontal),
_horizontalTop.Evaluate(tHorizontal),
tVertical);
color = useRGB && isLinear ? color.linear : color;
_texture.SetPixel(x, y, color);
}
}
_texture.Apply();
}
public bool Equals(Texture2D other)
{
return _texture.Equals(other);
}
void OnValidate() => ValidateTextureValues();
void IGradientTextureForEditor.LoadExisitingTexture()
{
#if UNITY_EDITOR
if (!_texture)
{
string assetPath = AssetDatabase.GetAssetPath(this);
_texture = AssetDatabase.LoadAssetAtPath<Texture2D>(assetPath);
}
#endif
}
void IGradientTextureForEditor.CreateTexture()
{
#if UNITY_EDITOR
//if (EditorApplication.isUpdating) return;
string assetPath = AssetDatabase.GetAssetPath(this);
if (string.IsNullOrEmpty(assetPath)) return;
if (!_texture && this != null && !EditorApplication.isUpdating)
{
AssetDatabase.ImportAsset(assetPath);
_texture = AssetDatabase.LoadAssetAtPath<Texture2D>(assetPath);
}
if (!_texture)
{
#if UNITY_2018
_texture = new Texture2D(_resolution.x, _resolution.y);
#else
_texture = new Texture2D(_resolution.x, _resolution.y, DefaultFormat.LDR, TextureCreationFlags.None);
#endif
if (_texture.name != name) _texture.name = name;
}
if (!_texture) return;
ValidateTextureValues();
if (!EditorUtility.IsPersistent(this)) return;
if (AssetDatabase.IsSubAsset(_texture)) return;
if (AssetDatabase.LoadAssetAtPath<Texture2D>(assetPath)) return;
#if UNITY_2020_1_OR_NEWER
if (AssetDatabase.IsAssetImportWorkerProcess()) return;
#endif
AssetDatabase.AddObjectToAsset(_texture, this);
AssetDatabase.SaveAssets();
AssetDatabase.Refresh();
AssetDatabase.ImportAsset(assetPath, ImportAssetOptions.ForceUpdate);
#endif
}
void ValidateTextureValues()
{
if (!_texture) return;
if (_texture.name != name)
{
_texture.name = name;
}
else
{
if (_texture.width != _resolution.x ||
_texture.height != _resolution.y)
{
#if UNITY_2022_1_OR_NEWER
_texture.Reinitialize(_resolution.x, _resolution.y);
#else
_texture.Resize(_resolution.x, _resolution.y);
#endif
}
#if UNITY_EDITOR
_texture.alphaIsTransparency = true;
#endif
FillColors(_sRGB);
SetDirtyTexture();
}
}
#region Editor
[System.Diagnostics.Conditional("UNITY_EDITOR")]
void SetDirtyTexture()
{
#if UNITY_EDITOR
if (!_texture) return;
EditorUtility.SetDirty(_texture);
#endif
}
#endregion
public void OnAfterDeserialize()
{
}
public void OnBeforeSerialize()
{
#if UNITY_EDITOR
if (!_texture || _texture.name == name) return;
_texture.name = name;
//AssetDatabase.SaveAssets();
#endif
}
}
#if UNITY_EDITOR
[CustomEditor(typeof(GradientTexture), true), CanEditMultipleObjects]
public class GradientTextureEditor : UnityEditor.Editor
{
GradientTexture _gradientTexture;
UnityEditor.Editor _editor;
public override bool HasPreviewGUI() => true;
void OnEnable()
{
_gradientTexture = target as GradientTexture;
}
public override void OnInspectorGUI()
{
if (_gradientTexture.GetTexture() == null)
{
(_gradientTexture as IGradientTextureForEditor).CreateTexture();
}
base.OnInspectorGUI();
string buttonText = "Encode to PNG" + (targets.Length > 1 ? $" ({targets.Length})" : "");
if (GUILayout.Button(buttonText))
{
foreach (Object target in targets)
{
GradientTexture targetTexture = target as GradientTexture;
string path = EditorUtility.SaveFilePanelInProject("Save file",
$"{targetTexture.name}_baked",
"png",
"Choose path to save file");
if (string.IsNullOrEmpty(path))
{
Debug.LogError("[ GradientTextureEditor ] EncodeToPNG() save path is empty! canceled",
targetTexture);
return;
}
bool wasSRGB = targetTexture.GetSRGB();
if (wasSRGB) targetTexture.SetSRGB(false);
byte[] bytes = ImageConversion.EncodeToPNG(targetTexture.GetTexture());
targetTexture.SetSRGB(wasSRGB);
int length = "Assets".Length;
string dataPath = Application.dataPath;
dataPath = dataPath.Remove(dataPath.Length - length, length);
dataPath += path;
File.WriteAllBytes(dataPath, bytes);
AssetDatabase.SaveAssets();
AssetDatabase.Refresh();
AssetDatabase.ImportAsset(path);
Texture2D image = AssetDatabase.LoadAssetAtPath<Texture2D>(path);
TextureImporter importer = (TextureImporter)AssetImporter.GetAtPath(path);
importer.sRGBTexture = targetTexture.GetSRGB();
importer.SaveAndReimport();
AssetDatabase.SaveAssets();
AssetDatabase.Refresh();
Debug.Log($"[ GradientTextureEditor ] EncodeToPNG() Success! png-gradient saved at '{path}'",
image);
EditorGUIUtility.PingObject(image);
Selection.activeObject = image;
}
}
}
public override void DrawPreview(Rect previewArea)
{
Texture2D texture = _gradientTexture.GetTexture();
bool check = !_editor || _editor.target != texture;
if (check && texture && (_editor == null || _editor.target != texture))
{
try
{
_editor = CreateEditor(targets.Select(t => (t as GradientTexture)?.GetTexture()).ToArray());
}
catch
{
_editor = null;
//Debug.LogException(e);
//throw;
}
}
if (_editor && _editor.target)
{
try
{
_editor.DrawPreview(previewArea);
}
catch
{
//Debug.LogException(e);
//throw;
}
}
}
public override void OnPreviewSettings()
{
if (_editor && _editor.target)
{
try
{
_editor.OnPreviewSettings();
}
catch
{
//Debug.LogException(e);
//throw;
}
}
}
public override void ReloadPreviewInstances()
{
if (_editor && _editor.target)
{
try
{
_editor.ReloadPreviewInstances();
}
catch
{
//Debug.LogException(e);
//throw;
}
}
}
public override void OnInteractivePreviewGUI(Rect r, GUIStyle background)
{
if (_editor && _editor.target)
{
try
{
_editor.OnInteractivePreviewGUI(r, background);
}
catch
{
//Debug.LogException(e);
//throw;
}
}
}
public override void OnPreviewGUI(Rect r, GUIStyle background)
{
if (_editor && _editor.target)
{
try
{
_editor.OnPreviewGUI(r, background);
}
catch
{
//Debug.LogException(e);
//throw;
}
}
}
public override Texture2D RenderStaticPreview(string assetPath, Object[] subAssets, int width, int height)
{
if (_gradientTexture == null) return null;
if (_gradientTexture.GetTexture() == null) return null;
Texture2D tex = new Texture2D(width, height);
EditorUtility.CopySerialized(_gradientTexture.GetTexture(), tex);
return tex;
}
void OnDisable()
{
if (_editor)
{
_editor.GetType().GetMethod("OnDisable", BindingFlags.NonPublic)?.Invoke(_editor, null);
}
}
void OnDestroy()
{
if (_editor)
{
DestroyImmediate(_editor);
}
}
}
public static class DragAndDropUtility
{
static DragAndDrop.ProjectBrowserDropHandler _handlerProject;
[InitializeOnLoadMethod]
public static void Init()
{
_handlerProject = ProjectDropHandler;
DragAndDrop.RemoveDropHandler(_handlerProject);
DragAndDrop.AddDropHandler(_handlerProject);
}
private static DragAndDropVisualMode ProjectDropHandler(int dragInstanceId, string dropUponPath, bool perform)
{
if (!perform)
{
var dragged = DragAndDrop.objectReferences;
bool found = false;
for (var i = 0; i < dragged.Length; i++)
{
if (dragged[i] is GradientTexture gradient)
{
dragged[i] = gradient.GetTexture();
found = true;
}
}
if (found)
{
DragAndDrop.objectReferences = dragged;
GUI.changed = true;
return default;
}
}
return default;
}
}
public class ProjectIconsUtility
{
[DidReloadScripts]
static ProjectIconsUtility()
{
EditorApplication.projectWindowItemOnGUI -= ItemOnGUI;
EditorApplication.projectWindowItemOnGUI += ItemOnGUI;
}
static void ItemOnGUI(string guid, Rect rect)
{
string assetPath = AssetDatabase.GUIDToAssetPath(guid);
var asset = AssetDatabase.LoadAssetAtPath<GradientTexture>(assetPath);
if (asset == null) return;
if (!asset.GetTexture()) return;
if (rect.height > 30)
{
// rect.position = new Vector2(rect.position.x + rect.height * .1f + rect.width - rect.height, rect.position.y);
// rect.height *= .87f;
// rect.width = rect.height - 5;
// rect.height *= .95f;
}
else
{
//rect.position = new Vector2(rect.position.x-2 + rect.width - rect.height, rect.position.y);
rect.width = rect.height *= .9f;
GUI.DrawTexture(rect, asset.GetTexture());
}
}
}
#endif

11
Assets/Scripts/GradientTexture.cs.meta Normal file
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70
Assets/Scripts/SceneEffect.cs Normal file
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@ -0,0 +1,70 @@
using System;
using UnityEngine;
using UnityEngine.Rendering;
using UnityEngine.Rendering.Universal;
public class SceneEffect : MonoBehaviour
{
public RenderPassEvent injectionPoint = RenderPassEvent.BeforeRendering;
[Serializable]
class Settings
{
public GradientTexture ShadowRemapTex;
}
[SerializeField]
private Settings settings;
SetupPass pass;
private void OnEnable()
{
pass = new(settings);
pass.renderPassEvent = injectionPoint;
RenderPipelineManager.beginCameraRendering += OnBeginCamera;
}
private void OnDisable()
{
RenderPipelineManager.beginCameraRendering -= OnBeginCamera;
}
private void OnBeginCamera(ScriptableRenderContext context, Camera cam)
{
if (pass == null)
{
return;
}
if (cam.cameraType != CameraType.Game && cam.cameraType != CameraType.SceneView)
{
return;
}
cam.GetUniversalAdditionalCameraData().scriptableRenderer.EnqueuePass(pass);
}
private class SetupPass : ScriptableRenderPass
{
const string ShadowRemap = "_ShadowRemapON";
private Settings settings;
public SetupPass(Settings settings)
{
this.settings = settings;
}
public override void FrameCleanup(CommandBuffer cmd)
{
cmd.DisableShaderKeyword(ShadowRemap);
}
public override void Execute(ScriptableRenderContext context, ref RenderingData renderingData)
{
var cmd = CommandBufferPool.Get("DissolveEffect");
cmd.EnableShaderKeyword(ShadowRemap);
cmd.SetGlobalTexture("_ShadowRemap", settings.ShadowRemapTex.GetTexture());
context.ExecuteCommandBuffer(cmd);
cmd.Clear();
}
}
}

11
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2
Assets/Settings/Mobile/Mobile_High_Renderer.asset
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@ -139,7 +139,7 @@ MonoBehaviour:
m_Script: {fileID: 11500000, guid: 1eadf15e5222b6546b5c84a97197f414, type: 3}
m_Name: CapsuleAO
m_EditorClassIdentifier:
m_Active: 1
m_Active: 0
settings:
RenderPassEvent: 450
AmbientIntensity: 1.44

180
Packages/com.unity.render-pipelines.universal@14.0.11/Shaders/Lit.shader vendored
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@ -112,7 +112,7 @@ Shader "Universal Render Pipeline/Lit"
// -------------------------------------
// Shader Stages
#pragma vertex LitPassVertex
#pragma fragment LitPassFragment
#pragma fragment _LitPassFragment
// -------------------------------------
// Material Keywords
@ -170,9 +170,184 @@ Shader "Universal Render Pipeline/Lit"
#include_with_pragmas "Packages/com.unity.render-pipelines.universal/ShaderLibrary/DOTS.hlsl"
#pragma multi_compile_vertex _ ENABLE_VS_SKINNING
// #pragma enable_d3d11_debug_symbols
// #pragma enable_d3d11_debug_symbols
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitForwardPass.hlsl"
sampler2D _ShadowRemap;
#pragma multi_compile_fragment _ _ShadowRemapON
half4 _UniversalFragmentPBR(InputData inputData, SurfaceData surfaceData)
{
#if defined(_SPECULARHIGHLIGHTS_OFF)
bool specularHighlightsOff = true;
#else
bool specularHighlightsOff = false;
#endif
BRDFData brdfData;
// NOTE: can modify "surfaceData"...
InitializeBRDFData(surfaceData, brdfData);
#if defined(DEBUG_DISPLAY)
half4 debugColor;
if (CanDebugOverrideOutputColor(inputData, surfaceData, brdfData, debugColor))
{
return debugColor;
}
#endif
// Clear-coat calculation...
BRDFData brdfDataClearCoat = CreateClearCoatBRDFData(surfaceData, brdfData);
half4 shadowMask = CalculateShadowMask(inputData);
AmbientOcclusionFactor aoFactor = CreateAmbientOcclusionFactor(inputData, surfaceData);
uint meshRenderingLayers = GetMeshRenderingLayer();
Light mainLight = GetMainLight(inputData, shadowMask, aoFactor);
// NOTE: We don't apply AO to the GI here because it's done in the lighting calculation below...
MixRealtimeAndBakedGI(mainLight, inputData.normalWS, inputData.bakedGI);
LightingData lightingData = CreateLightingData(inputData, surfaceData);
lightingData.giColor = GlobalIllumination(brdfData, brdfDataClearCoat, surfaceData.clearCoatMask,
inputData.bakedGI,
aoFactor.indirectAmbientOcclusion,
inputData.positionWS,
inputData.normalWS, inputData.viewDirectionWS,
inputData.normalizedScreenSpaceUV);
#ifdef _LIGHT_LAYERS
if (IsMatchingLightLayer(mainLight.layerMask, meshRenderingLayers))
#endif
{
lightingData.mainLightColor = LightingPhysicallyBased(brdfData, brdfDataClearCoat,
mainLight,
inputData.normalWS, inputData.viewDirectionWS,
surfaceData.clearCoatMask, specularHighlightsOff);
// * (step(0.01, 1 - mainLight.shadowAttenuation) /* * step( 1 - mainLight.shadowAttenuation, 0.3) */?
// lerp(0, half3(0.5, 0, 0) * (1 - mainLight.shadowAttenuation), mainLight.shadowAttenuation) * 0 : 1);
#ifdef _ShadowRemapON
half4 remapValue = tex2D(_ShadowRemap, float3(mainLight.shadowAttenuation, 0, 0));
lightingData.mainLightColor *= remapValue.rgb * remapValue.a;
#endif
}
#if defined(PLANAR_SHADOW)
lightingData.mainLightColor *= GetPlanarScreenShadowAttenuation(inputData.normalizedScreenSpaceUV);
#endif
#if defined(_ADDITIONAL_LIGHTS)
uint pixelLightCount = GetAdditionalLightsCount();
#if USE_FORWARD_PLUS
for (uint lightIndex = 0; lightIndex < min(URP_FP_DIRECTIONAL_LIGHTS_COUNT, MAX_VISIBLE_LIGHTS); lightIndex++)
{
FORWARD_PLUS_SUBTRACTIVE_LIGHT_CHECK
Light light = GetAdditionalLight(lightIndex, inputData, shadowMask, aoFactor);
#ifdef _LIGHT_LAYERS
if (IsMatchingLightLayer(light.layerMask, meshRenderingLayers))
#endif
{
lightingData.additionalLightsColor += LightingPhysicallyBased(brdfData, brdfDataClearCoat, light,
inputData.normalWS, inputData.viewDirectionWS,
surfaceData.clearCoatMask, specularHighlightsOff);
}
}
#endif
LIGHT_LOOP_BEGIN(pixelLightCount)
Light light = GetAdditionalLight(lightIndex, inputData, shadowMask, aoFactor);
#ifdef _LIGHT_LAYERS
if (IsMatchingLightLayer(light.layerMask, meshRenderingLayers))
#endif
{
lightingData.additionalLightsColor += LightingPhysicallyBased(brdfData, brdfDataClearCoat, light,
inputData.normalWS, inputData.viewDirectionWS,
surfaceData.clearCoatMask, specularHighlightsOff);
}
LIGHT_LOOP_END
#endif
#if defined(_ADDITIONAL_LIGHTS_VERTEX)
lightingData.vertexLightingColor += inputData.vertexLighting * brdfData.diffuse;
#endif
// #if defined(_SCREEN_SPACE_SHADOW_LOW_RESOLUTION_PCF)
// half realtimeShadow = half(SAMPLE_TEXTURE2D(_ScreenSpaceShadowmapTexture, sampler_PointClamp, inputData.normalizedScreenSpaceUV.xy).x);
// UNITY_BRANCH
// if(abs(realtimeShadow - 0.5) < 0.499)
// {
// return float4(1, 0, 0, 1);
// }
// #endif
// #if defined(_SOFTSHADOW_MASK)
// half realtimeShadow = half(SAMPLE_TEXTURE2D(_SoftShadowMaskTexture, sampler_PointClamp, inputData.normalizedScreenSpaceUV.xy).x);
// UNITY_BRANCH
// if(abs(realtimeShadow - 0.5) < 0.499)
// {
// return float4(1, 0, 0, 1);
// }
// #endif
#if REAL_IS_HALF
// Clamp any half.inf+ to HALF_MAX
return min(CalculateFinalColor(lightingData, surfaceData.alpha), HALF_MAX);
#else
return CalculateFinalColor(lightingData, surfaceData.alpha);
#endif
}
void _LitPassFragment(
Varyings input
, out half4 outColor : SV_Target0
#ifdef _WRITE_RENDERING_LAYERS
, out float4 outRenderingLayers : SV_Target1
#endif
)
{
UNITY_SETUP_INSTANCE_ID(input);
UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input);
#if defined(_PARALLAXMAP)
#if defined(REQUIRES_TANGENT_SPACE_VIEW_DIR_INTERPOLATOR)
half3 viewDirTS = input.viewDirTS;
#else
half3 viewDirWS = GetWorldSpaceNormalizeViewDir(input.positionWS);
half3 viewDirTS = GetViewDirectionTangentSpace(input.tangentWS, input.normalWS, viewDirWS);
#endif
ApplyPerPixelDisplacement(viewDirTS, input.uv);
#endif
SurfaceData surfaceData;
InitializeStandardLitSurfaceData(input.uv, surfaceData);
#ifdef LOD_FADE_CROSSFADE
LODFadeCrossFade(input.positionCS);
#endif
InputData inputData;
InitializeInputData(input, surfaceData.normalTS, inputData);
SETUP_DEBUG_TEXTURE_DATA(inputData, input.uv, _BaseMap);
#ifdef _DBUFFER
ApplyDecalToSurfaceData(input.positionCS, surfaceData, inputData);
#endif
half4 color = _UniversalFragmentPBR(inputData, surfaceData);
color.rgb = MixFog(color.rgb, inputData.fogCoord);
color.a = OutputAlpha(color.a, IsSurfaceTypeTransparent(_Surface));
outColor = color;
#ifdef _WRITE_RENDERING_LAYERS
uint renderingLayers = GetMeshRenderingLayer();
outRenderingLayers = float4(EncodeMeshRenderingLayer(renderingLayers), 0, 0, 0);
#endif
}
ENDHLSL
}
@ -441,7 +616,6 @@ Shader "Universal Render Pipeline/Lit"
// Includes
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitMetaPass.hlsl"
ENDHLSL
}