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159 行
7.5 KiB
159 行
7.5 KiB
using System;
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using UnityEngine;
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using UnityEngine.Rendering;
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using UnityEngine.Experimental.Rendering;
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using UnityEngine.Experimental.Rendering.HDPipeline;
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using UnityEditor;
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using UnityEditor.IMGUI.Controls;
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namespace UnityEditor.Experimental.Rendering.HDPipeline
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{
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[CustomEditor(typeof(DecalProjectorComponent))]
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public class DecalProjectorComponentEditor : Editor
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{
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private MaterialEditor m_MaterialEditor = null;
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private DecalProjectorComponent m_DecalProjectorComponent = null;
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private SerializedProperty m_MaterialProperty;
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private SerializedProperty m_DrawDistanceProperty;
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private SerializedProperty m_FadeScaleProperty;
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private SerializedProperty m_UVScaleProperty;
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private SerializedProperty m_UVBiasProperty;
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private SerializedProperty m_AffectsTransparencyProperty;
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private SerializedProperty m_Size;
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private SerializedProperty m_IsCropModeEnabledProperty;
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private DecalProjectorComponentHandle m_Handle = new DecalProjectorComponentHandle();
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private void OnEnable()
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{
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// Create an instance of the MaterialEditor
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m_DecalProjectorComponent = (DecalProjectorComponent)target;
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m_MaterialEditor = (MaterialEditor)CreateEditor(m_DecalProjectorComponent.Mat);
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m_DecalProjectorComponent.OnMaterialChange += OnMaterialChange;
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m_MaterialProperty = serializedObject.FindProperty("m_Material");
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m_DrawDistanceProperty = serializedObject.FindProperty("m_DrawDistance");
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m_FadeScaleProperty = serializedObject.FindProperty("m_FadeScale");
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m_UVScaleProperty = serializedObject.FindProperty("m_UVScale");
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m_UVBiasProperty = serializedObject.FindProperty("m_UVBias");
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m_AffectsTransparencyProperty = serializedObject.FindProperty("m_AffectsTransparency");
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m_Size = serializedObject.FindProperty("m_Size");
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m_IsCropModeEnabledProperty = serializedObject.FindProperty("m_IsCropModeEnabled");
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}
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private void OnDisable()
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{
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m_DecalProjectorComponent.OnMaterialChange -= OnMaterialChange;
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}
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private void OnDestroy()
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{
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DestroyImmediate(m_MaterialEditor);
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}
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public void OnMaterialChange()
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{
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// Update material editor with the new material
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m_MaterialEditor = (MaterialEditor)CreateEditor(m_DecalProjectorComponent.Mat);
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}
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void OnSceneGUI()
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{
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var mat = Handles.matrix;
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var col = Handles.color;
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Handles.color = Color.white;
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Handles.matrix = m_DecalProjectorComponent.transform.localToWorldMatrix;
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m_Handle.center = m_DecalProjectorComponent.m_Offset;
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m_Handle.size = m_DecalProjectorComponent.m_Size;
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Vector3 boundsSizePreviousOS = m_Handle.size;
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Vector3 boundsMinPreviousOS = m_Handle.size * -0.5f + m_Handle.center;
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EditorGUI.BeginChangeCheck();
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m_Handle.DrawHandle();
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if (EditorGUI.EndChangeCheck())
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{
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// Adjust decal transform if handle changed.
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Undo.RecordObject(m_DecalProjectorComponent, "Decal Projector Change");
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m_DecalProjectorComponent.m_Size = m_Handle.size;
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m_DecalProjectorComponent.m_Offset = m_Handle.center;
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Vector3 boundsSizeCurrentOS = m_Handle.size;
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Vector3 boundsMinCurrentOS = m_Handle.size * -0.5f + m_Handle.center;
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if (m_DecalProjectorComponent.m_IsCropModeEnabled)
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{
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// Treat decal projector bounds as a crop tool, rather than a scale tool.
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// Compute a new uv scale and bias terms to pin decal projection pixels in world space, irrespective of projector bounds.
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m_DecalProjectorComponent.m_UVScale.x *= Mathf.Max(1e-5f, boundsSizeCurrentOS.x) / Mathf.Max(1e-5f, boundsSizePreviousOS.x);
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m_DecalProjectorComponent.m_UVScale.y *= Mathf.Max(1e-5f, boundsSizeCurrentOS.z) / Mathf.Max(1e-5f, boundsSizePreviousOS.z);
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m_DecalProjectorComponent.m_UVBias.x += (boundsMinCurrentOS.x - boundsMinPreviousOS.x) / Mathf.Max(1e-5f, boundsSizeCurrentOS.x) * m_DecalProjectorComponent.m_UVScale.x;
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m_DecalProjectorComponent.m_UVBias.y += (boundsMinCurrentOS.z - boundsMinPreviousOS.z) / Mathf.Max(1e-5f, boundsSizeCurrentOS.z) * m_DecalProjectorComponent.m_UVScale.y;
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}
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}
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// Automatically recenter our transform component if necessary.
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// In order to correctly handle world-space snapping, we only perform this recentering when the user is no longer interacting with the gizmo.
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if ((GUIUtility.hotControl == 0) && (m_DecalProjectorComponent.m_Offset != Vector3.zero))
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{
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// Both the DecalProjectorComponent, and the transform will be modified.
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// The undo system will automatically group all RecordObject() calls here into a single action.
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Undo.RecordObject(m_DecalProjectorComponent.transform, "Decal Projector Change");
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// Re-center the transform to the center of the decal projector bounds,
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// while maintaining the world-space coordinates of the decal projector boundings vertices.
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m_DecalProjectorComponent.transform.Translate(
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Vector3.Scale(m_DecalProjectorComponent.m_Offset, m_DecalProjectorComponent.transform.localScale),
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Space.Self
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);
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m_DecalProjectorComponent.m_Offset = Vector3.zero;
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}
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Handles.matrix = mat;
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Handles.color = col;
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}
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public override void OnInspectorGUI()
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{
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EditorGUI.BeginChangeCheck();
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EditorGUILayout.PropertyField(m_IsCropModeEnabledProperty, new GUIContent("Crop Decal with Gizmo"));
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EditorGUILayout.PropertyField(m_Size);
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EditorGUILayout.PropertyField(m_MaterialProperty);
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EditorGUILayout.PropertyField(m_DrawDistanceProperty);
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EditorGUILayout.Slider(m_FadeScaleProperty, 0.0f, 1.0f, new GUIContent("Fade scale"));
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EditorGUILayout.PropertyField(m_UVScaleProperty);
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EditorGUILayout.PropertyField(m_UVBiasProperty);
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EditorGUILayout.PropertyField(m_AffectsTransparencyProperty);
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if (EditorGUI.EndChangeCheck())
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{
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serializedObject.ApplyModifiedProperties();
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}
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if (m_MaterialEditor != null)
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{
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// Draw the material's foldout and the material shader field
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// Required to call m_MaterialEditor.OnInspectorGUI ();
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m_MaterialEditor.DrawHeader();
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// We need to prevent the user to edit default decal materials
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bool isDefaultMaterial = false;
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var hdrp = GraphicsSettings.renderPipelineAsset as HDRenderPipelineAsset;
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if (hdrp != null)
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{
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isDefaultMaterial = m_DecalProjectorComponent.Mat == hdrp.GetDefaultDecalMaterial();
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}
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using (new EditorGUI.DisabledGroupScope(isDefaultMaterial))
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{
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// Draw the material properties
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// Works only if the foldout of m_MaterialEditor.DrawHeader () is open
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m_MaterialEditor.OnInspectorGUI();
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}
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}
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}
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}
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}
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