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- using System;
- namespace UnityEngine.PostProcessing
- {
- public sealed class DepthOfFieldComponent : PostProcessingComponentRenderTexture<DepthOfFieldModel>
- {
- public override bool active
- {
- get
- {
- return base.model.enabled && !this.context.interrupted;
- }
- }
- public override DepthTextureMode GetCameraFlags()
- {
- return DepthTextureMode.Depth;
- }
- private float CalculateFocalLength()
- {
- DepthOfFieldModel.Settings settings = base.model.settings;
- if (!settings.useCameraFov)
- {
- return settings.focalLength / 1000f;
- }
- float num = this.context.camera.fieldOfView * 0.0174532924f;
- return 0.012f / Mathf.Tan(0.5f * num);
- }
- private float CalculateMaxCoCRadius(int screenHeight)
- {
- float num = (float)base.model.settings.kernelSize * 4f + 6f;
- return Mathf.Min(0.05f, num / (float)screenHeight);
- }
- private bool CheckHistory(int width, int height)
- {
- return this.m_CoCHistory != null && this.m_CoCHistory.IsCreated() && this.m_CoCHistory.width == width && this.m_CoCHistory.height == height;
- }
- private RenderTextureFormat SelectFormat(RenderTextureFormat primary, RenderTextureFormat secondary)
- {
- if (SystemInfo.SupportsRenderTextureFormat(primary))
- {
- return primary;
- }
- if (SystemInfo.SupportsRenderTextureFormat(secondary))
- {
- return secondary;
- }
- return RenderTextureFormat.Default;
- }
- public void Prepare(RenderTexture source, Material uberMaterial, bool antialiasCoC, Vector2 taaJitter, float taaBlending)
- {
- DepthOfFieldModel.Settings settings = base.model.settings;
- RenderTextureFormat format = RenderTextureFormat.DefaultHDR;
- RenderTextureFormat format2 = this.SelectFormat(RenderTextureFormat.R8, RenderTextureFormat.RHalf);
- float num = this.CalculateFocalLength();
- float num2 = Mathf.Max(settings.focusDistance, num);
- float num3 = (float)source.width / (float)source.height;
- float num4 = num * num / (settings.aperture * (num2 - num) * 0.024f * 2f);
- float num5 = this.CalculateMaxCoCRadius(source.height);
- Material material = this.context.materialFactory.Get("Hidden/Post FX/Depth Of Field");
- material.SetFloat(DepthOfFieldComponent.Uniforms._Distance, num2);
- material.SetFloat(DepthOfFieldComponent.Uniforms._LensCoeff, num4);
- material.SetFloat(DepthOfFieldComponent.Uniforms._MaxCoC, num5);
- material.SetFloat(DepthOfFieldComponent.Uniforms._RcpMaxCoC, 1f / num5);
- material.SetFloat(DepthOfFieldComponent.Uniforms._RcpAspect, 1f / num3);
- RenderTexture renderTexture = this.context.renderTextureFactory.Get(this.context.width, this.context.height, 0, format2, RenderTextureReadWrite.Linear, FilterMode.Bilinear, TextureWrapMode.Clamp, "FactoryTempTexture");
- Graphics.Blit(null, renderTexture, material, 0);
- if (antialiasCoC)
- {
- material.SetTexture(DepthOfFieldComponent.Uniforms._CoCTex, renderTexture);
- float z = (!this.CheckHistory(this.context.width, this.context.height)) ? 0f : taaBlending;
- material.SetVector(DepthOfFieldComponent.Uniforms._TaaParams, new Vector3(taaJitter.x, taaJitter.y, z));
- RenderTexture temporary = RenderTexture.GetTemporary(this.context.width, this.context.height, 0, format2);
- Graphics.Blit(this.m_CoCHistory, temporary, material, 1);
- this.context.renderTextureFactory.Release(renderTexture);
- if (this.m_CoCHistory != null)
- {
- RenderTexture.ReleaseTemporary(this.m_CoCHistory);
- }
- renderTexture = (this.m_CoCHistory = temporary);
- }
- RenderTexture renderTexture2 = this.context.renderTextureFactory.Get(this.context.width / 2, this.context.height / 2, 0, format, RenderTextureReadWrite.Default, FilterMode.Bilinear, TextureWrapMode.Clamp, "FactoryTempTexture");
- material.SetTexture(DepthOfFieldComponent.Uniforms._CoCTex, renderTexture);
- Graphics.Blit(source, renderTexture2, material, 2);
- RenderTexture renderTexture3 = this.context.renderTextureFactory.Get(this.context.width / 2, this.context.height / 2, 0, format, RenderTextureReadWrite.Default, FilterMode.Bilinear, TextureWrapMode.Clamp, "FactoryTempTexture");
- Graphics.Blit(renderTexture2, renderTexture3, material, (int)(3 + settings.kernelSize));
- Graphics.Blit(renderTexture3, renderTexture2, material, 7);
- uberMaterial.SetVector(DepthOfFieldComponent.Uniforms._DepthOfFieldParams, new Vector3(num2, num4, num5));
- if (this.context.profile.debugViews.IsModeActive(BuiltinDebugViewsModel.Mode.FocusPlane))
- {
- uberMaterial.EnableKeyword("DEPTH_OF_FIELD_COC_VIEW");
- this.context.Interrupt();
- }
- else
- {
- uberMaterial.SetTexture(DepthOfFieldComponent.Uniforms._DepthOfFieldTex, renderTexture2);
- uberMaterial.SetTexture(DepthOfFieldComponent.Uniforms._DepthOfFieldCoCTex, renderTexture);
- uberMaterial.EnableKeyword("DEPTH_OF_FIELD");
- }
- this.context.renderTextureFactory.Release(renderTexture3);
- }
- public override void OnDisable()
- {
- if (this.m_CoCHistory != null)
- {
- RenderTexture.ReleaseTemporary(this.m_CoCHistory);
- }
- this.m_CoCHistory = null;
- }
- private const string k_ShaderString = "Hidden/Post FX/Depth Of Field";
- private RenderTexture m_CoCHistory;
- private const float k_FilmHeight = 0.024f;
- private static class Uniforms
- {
- internal static readonly int _DepthOfFieldTex = Shader.PropertyToID("_DepthOfFieldTex");
- internal static readonly int _DepthOfFieldCoCTex = Shader.PropertyToID("_DepthOfFieldCoCTex");
- internal static readonly int _Distance = Shader.PropertyToID("_Distance");
- internal static readonly int _LensCoeff = Shader.PropertyToID("_LensCoeff");
- internal static readonly int _MaxCoC = Shader.PropertyToID("_MaxCoC");
- internal static readonly int _RcpMaxCoC = Shader.PropertyToID("_RcpMaxCoC");
- internal static readonly int _RcpAspect = Shader.PropertyToID("_RcpAspect");
- internal static readonly int _MainTex = Shader.PropertyToID("_MainTex");
- internal static readonly int _CoCTex = Shader.PropertyToID("_CoCTex");
- internal static readonly int _TaaParams = Shader.PropertyToID("_TaaParams");
- internal static readonly int _DepthOfFieldParams = Shader.PropertyToID("_DepthOfFieldParams");
- }
- }
- }
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