forked from BilalY/Rasagar
270 lines
14 KiB
C#
270 lines
14 KiB
C#
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using UnityEngine;
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using UnityEngine.Rendering.HighDefinition;
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using UnityEditorInternal;
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using UnityEditor.Rendering;
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using UnityEngine.Rendering;
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namespace UnityEditor.Rendering.HighDefinition
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{
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[CanEditMultipleObjects]
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[CustomEditor(typeof(LocalVolumetricFog))]
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class LocalVolumetricFogEditor : Editor
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{
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internal const EditMode.SceneViewEditMode k_EditShape = EditMode.SceneViewEditMode.ReflectionProbeBox;
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internal const EditMode.SceneViewEditMode k_EditBlend = EditMode.SceneViewEditMode.GridBox;
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Editor m_MaterialEditor;
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static HierarchicalBox s_ShapeBox;
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internal static HierarchicalBox s_BlendBox;
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SerializedLocalVolumetricFog m_SerializedLocalVolumetricFog;
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void OnEnable()
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{
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m_SerializedLocalVolumetricFog = new SerializedLocalVolumetricFog(serializedObject);
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if (s_ShapeBox == null || s_ShapeBox.Equals(null))
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{
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s_ShapeBox = new HierarchicalBox(LocalVolumetricFogUI.Styles.k_GizmoColorBase, LocalVolumetricFogUI.Styles.k_BaseHandlesColor);
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s_ShapeBox.monoHandle = false;
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}
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if (s_BlendBox == null || s_BlendBox.Equals(null))
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{
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s_BlendBox = new HierarchicalBox(LocalVolumetricFogUI.Styles.k_GizmoColorBase, InfluenceVolumeUI.k_HandlesColor, parent: s_ShapeBox);
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}
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}
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void OnDisable()
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{
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CoreUtils.Destroy(m_MaterialEditor);
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}
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public override void OnInspectorGUI()
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{
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serializedObject.Update();
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if (!HDRenderPipeline.currentAsset?.currentPlatformRenderPipelineSettings.supportVolumetrics ?? false)
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{
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HDEditorUtils.QualitySettingsHelpBox("The current HDRP Asset does not support volumetric fog.", MessageType.Error,
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HDRenderPipelineUI.ExpandableGroup.Lighting, HDRenderPipelineUI.ExpandableLighting.Volumetric, "m_RenderPipelineSettings.supportVolumetrics");
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}
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LocalVolumetricFogUI.Inspector.Draw(m_SerializedLocalVolumetricFog, this);
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m_SerializedLocalVolumetricFog.Apply();
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if ((LocalVolumetricFogMaskMode)m_SerializedLocalVolumetricFog.maskMode.intValue == LocalVolumetricFogMaskMode.Material
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&& m_SerializedLocalVolumetricFog.materialMask.objectReferenceValue is Material mat)
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{
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// Update material target
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if (m_MaterialEditor == null || m_MaterialEditor.target != mat)
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Editor.CreateCachedEditor(mat, typeof(MaterialEditor), ref m_MaterialEditor);
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// Draw material UI
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using (new EditorGUI.DisabledScope((mat.hideFlags & HideFlags.NotEditable) != 0))
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{
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m_MaterialEditor.DrawHeader();
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m_MaterialEditor.OnInspectorGUI();
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}
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}
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}
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static Vector3 CenterBlendLocalPosition(LocalVolumetricFog localVolumetricFog)
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{
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if (localVolumetricFog.parameters.m_EditorAdvancedFade)
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{
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Vector3 size = localVolumetricFog.parameters.size;
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Vector3 posBlend = localVolumetricFog.parameters.m_EditorPositiveFade;
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posBlend.x *= size.x;
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posBlend.y *= size.y;
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posBlend.z *= size.z;
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Vector3 negBlend = localVolumetricFog.parameters.m_EditorNegativeFade;
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negBlend.x *= size.x;
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negBlend.y *= size.y;
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negBlend.z *= size.z;
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Vector3 localPosition = (negBlend - posBlend) * 0.5f;
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return localPosition;
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}
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else
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return Vector3.zero;
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}
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static Vector3 BlendSize(LocalVolumetricFog localVolumetricFog)
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{
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Vector3 size = localVolumetricFog.parameters.size;
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if (localVolumetricFog.parameters.m_EditorAdvancedFade)
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{
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Vector3 blendSize = (Vector3.one - localVolumetricFog.parameters.m_EditorPositiveFade - localVolumetricFog.parameters.m_EditorNegativeFade);
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blendSize.x *= size.x;
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blendSize.y *= size.y;
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blendSize.z *= size.z;
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return blendSize;
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}
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else
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return size - localVolumetricFog.parameters.m_EditorUniformFade * 2f * Vector3.one;
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}
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[DrawGizmo(GizmoType.Selected | GizmoType.Active)]
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static void DrawGizmosSelected(LocalVolumetricFog localVolumetricFog, GizmoType gizmoType)
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{
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if (s_BlendBox == null || s_BlendBox.Equals(null)
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|| s_ShapeBox == null || s_ShapeBox.Equals(null))
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return;
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using (new Handles.DrawingScope(Matrix4x4.TRS(localVolumetricFog.transform.position, localVolumetricFog.transform.rotation, Vector3.one)))
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{
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// Blend box
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s_BlendBox.center = CenterBlendLocalPosition(localVolumetricFog);
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s_BlendBox.size = BlendSize(localVolumetricFog);
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Color baseColor = localVolumetricFog.parameters.albedo;
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baseColor.a = 8 / 255f;
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s_BlendBox.baseColor = baseColor;
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s_BlendBox.DrawHull(EditMode.editMode == k_EditBlend);
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// Bounding box.
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s_ShapeBox.center = Vector3.zero;
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s_ShapeBox.size = localVolumetricFog.parameters.size;
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s_ShapeBox.DrawHull(EditMode.editMode == k_EditShape);
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}
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}
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void OnSceneGUI()
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{
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//Note: for each handle to be independent when multi-selecting LocalVolumetricFog,
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//We cannot rely hereon SerializedLocalVolumetricFog which is the collection of
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//selected LocalVolumetricFog. Thus code is almost the same of the UI.
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LocalVolumetricFog localVolumetricFog = target as LocalVolumetricFog;
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switch (EditMode.editMode)
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{
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case k_EditBlend:
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using (new Handles.DrawingScope(Matrix4x4.TRS(localVolumetricFog.transform.position, localVolumetricFog.transform.rotation, Vector3.one)))
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{
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//contained must be initialized in all case
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s_ShapeBox.center = Vector3.zero;
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s_ShapeBox.size = localVolumetricFog.parameters.size;
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Color baseColor = localVolumetricFog.parameters.albedo;
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baseColor.a = 8 / 255f;
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s_BlendBox.baseColor = baseColor;
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s_BlendBox.monoHandle = !localVolumetricFog.parameters.m_EditorAdvancedFade;
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s_BlendBox.center = CenterBlendLocalPosition(localVolumetricFog);
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s_BlendBox.size = BlendSize(localVolumetricFog);
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EditorGUI.BeginChangeCheck();
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s_BlendBox.DrawHandle();
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if (EditorGUI.EndChangeCheck())
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{
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Undo.RecordObject(localVolumetricFog, L10n.Tr("Change Local Volumetric Fog Blend"));
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if (localVolumetricFog.parameters.m_EditorAdvancedFade)
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{
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//work in local space to compute the change on positiveFade and negativeFade
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Vector3 newCenterBlendLocalPosition = s_BlendBox.center;
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Vector3 halfSize = s_BlendBox.size * 0.5f;
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Vector3 size = localVolumetricFog.parameters.size;
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Vector3 posFade = newCenterBlendLocalPosition + halfSize;
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posFade.x = 0.5f - posFade.x / size.x;
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posFade.y = 0.5f - posFade.y / size.y;
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posFade.z = 0.5f - posFade.z / size.z;
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Vector3 negFade = newCenterBlendLocalPosition - halfSize;
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negFade.x = 0.5f + negFade.x / size.x;
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negFade.y = 0.5f + negFade.y / size.y;
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negFade.z = 0.5f + negFade.z / size.z;
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localVolumetricFog.parameters.m_EditorPositiveFade = posFade;
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localVolumetricFog.parameters.m_EditorNegativeFade = negFade;
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}
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else
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{
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float uniformDistance = (s_ShapeBox.size.x - s_BlendBox.size.x) * 0.5f;
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float max = Mathf.Min(s_ShapeBox.size.x, s_ShapeBox.size.y, s_ShapeBox.size.z) * 0.5f;
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localVolumetricFog.parameters.m_EditorUniformFade = Mathf.Clamp(uniformDistance, 0f, max);
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}
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}
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}
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break;
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case k_EditShape:
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//important: if the origin of the handle's space move along the handle,
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//handles displacement will appears as moving two time faster.
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using (new Handles.DrawingScope(Matrix4x4.TRS(Vector3.zero, localVolumetricFog.transform.rotation, Vector3.one)))
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{
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//contained must be initialized in all case
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s_ShapeBox.center = Quaternion.Inverse(localVolumetricFog.transform.rotation) * localVolumetricFog.transform.position;
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s_ShapeBox.size = localVolumetricFog.parameters.size;
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Vector3 previousSize = localVolumetricFog.parameters.size;
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Vector3 previousPositiveFade = localVolumetricFog.parameters.m_EditorPositiveFade;
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Vector3 previousNegativeFade = localVolumetricFog.parameters.m_EditorNegativeFade;
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EditorGUI.BeginChangeCheck();
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s_ShapeBox.DrawHandle();
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if (EditorGUI.EndChangeCheck())
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{
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Undo.RecordObjects(new Object[] { localVolumetricFog, localVolumetricFog.transform }, L10n.Tr("Change Local Volumetric Fog Bounding Box"));
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Vector3 newSize = s_ShapeBox.size;
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localVolumetricFog.parameters.size = newSize;
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Vector3 newPositiveFade = new Vector3(
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newSize.x < 0.00001 ? 0 : previousPositiveFade.x * previousSize.x / newSize.x,
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newSize.y < 0.00001 ? 0 : previousPositiveFade.y * previousSize.y / newSize.y,
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newSize.z < 0.00001 ? 0 : previousPositiveFade.z * previousSize.z / newSize.z
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);
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Vector3 newNegativeFade = new Vector3(
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newSize.x < 0.00001 ? 0 : previousNegativeFade.x * previousSize.x / newSize.x,
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newSize.y < 0.00001 ? 0 : previousNegativeFade.y * previousSize.y / newSize.y,
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newSize.z < 0.00001 ? 0 : previousNegativeFade.z * previousSize.z / newSize.z
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);
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for (int axeIndex = 0; axeIndex < 3; ++axeIndex)
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{
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if (newPositiveFade[axeIndex] + newNegativeFade[axeIndex] > 1)
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{
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float overValue = (newPositiveFade[axeIndex] + newNegativeFade[axeIndex] - 1f) * 0.5f;
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newPositiveFade[axeIndex] -= overValue;
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newNegativeFade[axeIndex] -= overValue;
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if (newPositiveFade[axeIndex] < 0)
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{
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newNegativeFade[axeIndex] += newPositiveFade[axeIndex];
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newPositiveFade[axeIndex] = 0f;
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}
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if (newNegativeFade[axeIndex] < 0)
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{
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newPositiveFade[axeIndex] += newNegativeFade[axeIndex];
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newNegativeFade[axeIndex] = 0f;
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}
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}
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}
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localVolumetricFog.parameters.m_EditorPositiveFade = newPositiveFade;
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localVolumetricFog.parameters.m_EditorNegativeFade = newNegativeFade;
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//update normal mode blend
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float max = Mathf.Min(newSize.x, newSize.y, newSize.z) * 0.5f;
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float newUniformFade = Mathf.Clamp(localVolumetricFog.parameters.m_EditorUniformFade, 0f, max);
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localVolumetricFog.parameters.m_EditorUniformFade = newUniformFade;
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//update engine used percents
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if (localVolumetricFog.parameters.m_EditorAdvancedFade)
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{
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localVolumetricFog.parameters.positiveFade = newPositiveFade;
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localVolumetricFog.parameters.negativeFade = newNegativeFade;
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}
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else
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{
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localVolumetricFog.parameters.positiveFade =
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localVolumetricFog.parameters.negativeFade = new Vector3(
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1.0f - (newSize.x > 0.00000001 ? (newSize.x - newUniformFade) / newSize.x : 0f),
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1.0f - (newSize.y > 0.00000001 ? (newSize.y - newUniformFade) / newSize.y : 0f),
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1.0f - (newSize.z > 0.00000001 ? (newSize.z - newUniformFade) / newSize.z : 0f));
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}
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Vector3 delta = localVolumetricFog.transform.rotation * s_ShapeBox.center - localVolumetricFog.transform.position;
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localVolumetricFog.transform.position += delta;
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}
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}
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break;
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}
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}
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}
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}
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