using System.Collections.Generic; using UnityEngine; using UnityEngine.Experimental.Rendering; using UnityEngine.Experimental.Rendering.HDPipeline; namespace UnityEditor.Experimental.Rendering.HDPipeline { [CustomEditor(typeof(SubsurfaceScatteringSettings))] public sealed partial class SubsurfaceScatteringSettingsEditor : HDBaseEditor { sealed class Profile { internal SerializedProperty self; internal SubsurfaceScatteringProfile objReference; internal SerializedProperty name; internal SerializedProperty scatteringDistance; internal SerializedProperty transmissionTint; internal SerializedProperty texturingMode; internal SerializedProperty transmissionMode; internal SerializedProperty thicknessRemap; internal SerializedProperty worldScale; internal SerializedProperty fresnel0; // Old SSS Model >>> internal SerializedProperty scatterDistance1; internal SerializedProperty scatterDistance2; internal SerializedProperty lerpWeight; // <<< Old SSS Model // Render preview internal RenderTexture profileRT; internal RenderTexture transmittanceRT; internal Profile() { profileRT = new RenderTexture(256, 256, 0, RenderTextureFormat.DefaultHDR); transmittanceRT = new RenderTexture( 16, 256, 0, RenderTextureFormat.DefaultHDR); } internal void Release() { CoreUtils.Destroy(profileRT); CoreUtils.Destroy(transmittanceRT); } } List m_Profiles; Material m_ProfileMaterial; Material m_TransmittanceMaterial; protected override void OnEnable() { base.OnEnable(); // These shaders don't need to be reference by RenderPipelineResource as they are not use at runtime m_ProfileMaterial = CoreUtils.CreateEngineMaterial("Hidden/HDRenderPipeline/DrawSssProfile"); m_TransmittanceMaterial = CoreUtils.CreateEngineMaterial("Hidden/HDRenderPipeline/DrawTransmittanceGraph"); int count = SssConstants.SSS_N_PROFILES - 1; m_Profiles = new List(); var serializedProfiles = properties.Find(x => x.profiles); for (int i = 0; i < count; i++) { var serializedProfile = serializedProfiles.GetArrayElementAtIndex(i); var rp = new RelativePropertyFetcher(serializedProfile); var profile = new Profile { self = serializedProfile, objReference = m_Target.profiles[i], name = rp.Find(x => x.name), scatteringDistance = rp.Find(x => x.scatteringDistance), transmissionTint = rp.Find(x => x.transmissionTint), texturingMode = rp.Find(x => x.texturingMode), transmissionMode = rp.Find(x => x.transmissionMode), thicknessRemap = rp.Find(x => x.thicknessRemap), worldScale = rp.Find(x => x.worldScale), fresnel0 = rp.Find(x => x.fresnel0), scatterDistance1 = rp.Find(x => x.scatterDistance1), scatterDistance2 = rp.Find(x => x.scatterDistance2), lerpWeight = rp.Find(x => x.lerpWeight) }; m_Profiles.Add(profile); } } void OnDisable() { CoreUtils.Destroy(m_ProfileMaterial); CoreUtils.Destroy(m_TransmittanceMaterial); foreach (var profile in m_Profiles) profile.Release(); m_Profiles = null; } public override void OnInspectorGUI() { CheckStyles(); // Display a warning if this settings asset is not currently in use if (m_HDPipeline == null || m_HDPipeline.sssSettings != m_Target) EditorGUILayout.HelpBox("These profiles aren't currently in use, assign this asset to the HD render pipeline asset to use them.", MessageType.Warning); serializedObject.Update(); EditorGUILayout.Space(); if (m_Profiles == null || m_Profiles.Count == 0) return; bool useDisneySSS = ShaderConfig.k_UseDisneySSS == 1; for (int i = 0; i < m_Profiles.Count; i++) { var profile = m_Profiles[i]; CoreEditorUtils.DrawSplitter(); bool state = profile.self.isExpanded; state = CoreEditorUtils.DrawHeaderFoldout(profile.name.stringValue, state); if (state) { EditorGUI.indentLevel++; EditorGUILayout.PropertyField(profile.name); using (var scope = new EditorGUI.ChangeCheckScope()) { if (useDisneySSS) { EditorGUILayout.PropertyField(profile.scatteringDistance, s_Styles.profileScatteringDistance); using (new EditorGUI.DisabledScope(true)) EditorGUILayout.FloatField(s_Styles.profileMaxRadius, profile.objReference.maxRadius); } else { EditorGUILayout.PropertyField(profile.scatterDistance1, s_Styles.profileScatterDistance1); EditorGUILayout.PropertyField(profile.scatterDistance2, s_Styles.profileScatterDistance2); EditorGUILayout.PropertyField(profile.lerpWeight, s_Styles.profileLerpWeight); } profile.texturingMode.intValue = EditorGUILayout.Popup(s_Styles.texturingMode, profile.texturingMode.intValue, s_Styles.texturingModeOptions); profile.transmissionMode.intValue = EditorGUILayout.Popup(s_Styles.profileTransmissionMode, profile.transmissionMode.intValue, s_Styles.transmissionModeOptions); EditorGUILayout.PropertyField(profile.transmissionTint, s_Styles.profileTransmissionTint); EditorGUILayout.PropertyField(profile.thicknessRemap, s_Styles.profileMinMaxThickness); var thicknessRemap = profile.thicknessRemap.vector2Value; EditorGUILayout.MinMaxSlider(s_Styles.profileThicknessRemap, ref thicknessRemap.x, ref thicknessRemap.y, 0f, 50f); profile.thicknessRemap.vector2Value = thicknessRemap; EditorGUILayout.PropertyField(profile.worldScale, s_Styles.profileWorldScale); EditorGUILayout.Slider(profile.fresnel0, 0.0f, 0.1f, s_Styles.profileFresnel0); EditorGUILayout.Space(); EditorGUILayout.LabelField(s_Styles.profilePreview0, s_Styles.centeredMiniBoldLabel); EditorGUILayout.LabelField(s_Styles.profilePreview1, EditorStyles.centeredGreyMiniLabel); EditorGUILayout.LabelField(s_Styles.profilePreview2, EditorStyles.centeredGreyMiniLabel); EditorGUILayout.LabelField(s_Styles.profilePreview3, EditorStyles.centeredGreyMiniLabel); EditorGUILayout.Space(); serializedObject.ApplyModifiedProperties(); if (scope.changed) { // Validate and update the cache for this profile only profile.objReference.Validate(); m_Target.UpdateCache(i); } } RenderPreview(profile, useDisneySSS); EditorGUILayout.Space(); EditorGUI.indentLevel--; } profile.self.isExpanded = state; } CoreEditorUtils.DrawSplitter(); serializedObject.ApplyModifiedProperties(); } void RenderPreview(Profile profile, bool useDisneySSS) { var obj = profile.objReference; float r = obj.maxRadius; var S = obj.shapeParam; var T = (Vector4)profile.transmissionTint.colorValue; var R = profile.thicknessRemap.vector2Value; bool transmissionEnabled = profile.transmissionMode.intValue != (int)SubsurfaceScatteringProfile.TransmissionMode.None; m_ProfileMaterial.SetFloat(HDShaderIDs._MaxRadius, r); m_ProfileMaterial.SetVector(HDShaderIDs._ShapeParam, S); // Old SSS Model >>> CoreUtils.SelectKeyword(m_ProfileMaterial, "SSS_MODEL_DISNEY", "SSS_MODEL_BASIC", useDisneySSS); // Apply the three-sigma rule, and rescale. float s = (1f / 3f) * SssConstants.SSS_BASIC_DISTANCE_SCALE; var scatterDist1 = profile.scatterDistance1.colorValue; var scatterDist2 = profile.scatterDistance2.colorValue; float rMax = Mathf.Max(scatterDist1.r, scatterDist1.g, scatterDist1.b, scatterDist2.r, scatterDist2.g, scatterDist2.b); var stdDev1 = s * (Vector4)scatterDist1; var stdDev2 = s * (Vector4)scatterDist2; m_ProfileMaterial.SetVector(HDShaderIDs._StdDev1, stdDev1); m_ProfileMaterial.SetVector(HDShaderIDs._StdDev2, stdDev2); m_ProfileMaterial.SetFloat(HDShaderIDs._LerpWeight, profile.lerpWeight.floatValue); m_ProfileMaterial.SetFloat(HDShaderIDs._MaxRadius, rMax); // <<< Old SSS Model // Draw the profile. EditorGUI.DrawPreviewTexture(GUILayoutUtility.GetRect(256f, 256f), profile.profileRT, m_ProfileMaterial, ScaleMode.ScaleToFit, 1f); EditorGUILayout.Space(); EditorGUILayout.LabelField(s_Styles.transmittancePreview0, s_Styles.centeredMiniBoldLabel); EditorGUILayout.LabelField(s_Styles.transmittancePreview1, EditorStyles.centeredGreyMiniLabel); EditorGUILayout.LabelField(s_Styles.transmittancePreview2, EditorStyles.centeredGreyMiniLabel); EditorGUILayout.Space(); // Old SSS Model >>> // Multiply by 0.1 to convert from millimeters to centimeters. Apply the distance scale. float a = 0.1f * SssConstants.SSS_BASIC_DISTANCE_SCALE; var halfRcpVarianceAndWeight1 = new Vector4(a * a * 0.5f / (stdDev1.x * stdDev1.x), a * a * 0.5f / (stdDev1.y * stdDev1.y), a * a * 0.5f / (stdDev1.z * stdDev1.z), 4f * (1f - profile.lerpWeight.floatValue)); var halfRcpVarianceAndWeight2 = new Vector4(a * a * 0.5f / (stdDev2.x * stdDev2.x), a * a * 0.5f / (stdDev2.y * stdDev2.y), a * a * 0.5f / (stdDev2.z * stdDev2.z), 4f * profile.lerpWeight.floatValue); m_TransmittanceMaterial.SetVector(HDShaderIDs._HalfRcpVarianceAndWeight1, halfRcpVarianceAndWeight1); m_TransmittanceMaterial.SetVector(HDShaderIDs._HalfRcpVarianceAndWeight2, halfRcpVarianceAndWeight2); // <<< Old SSS Model m_TransmittanceMaterial.SetVector(HDShaderIDs._ShapeParam, S); m_TransmittanceMaterial.SetVector(HDShaderIDs._TransmissionTint, transmissionEnabled ? T : Vector4.zero); m_TransmittanceMaterial.SetVector(HDShaderIDs._ThicknessRemap, R); // Draw the transmittance graph. EditorGUI.DrawPreviewTexture(GUILayoutUtility.GetRect(16f, 16f), profile.transmittanceRT, m_TransmittanceMaterial, ScaleMode.ScaleToFit, 16f); } } }