244 lines
9.8 KiB
C#
244 lines
9.8 KiB
C#
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using UnityEditor.EditorTools;
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using UnityEngine;
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using UnityEngine.TerrainTools;
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using UnityEditor.ShortcutManagement;
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using UnityEditor.Overlays;
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using UnityEngine.UIElements;
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namespace UnityEditor.TerrainTools
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{
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internal class ContrastToolOvl : TerrainToolsPaintTool<ContrastToolOvl>
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{
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#if UNITY_2019_1_OR_NEWER
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[Shortcut("Terrain/Select Contrast Tool", typeof(TerrainToolShortcutContext))]
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static void SelectShortcut(ShortcutArguments args)
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{
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TerrainToolShortcutContext context = (TerrainToolShortcutContext)args.context;
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context.SelectPaintToolWithOverlays<ContrastToolOvl>();
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TerrainToolsAnalytics.OnShortcutKeyRelease("Select Contrast Tool");
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}
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#endif
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public override string OnIcon => "Packages/com.unity.terrain-tools/Editor/Icons/TerrainOverlays/Contrast_On.png";
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public override string OffIcon => "Packages/com.unity.terrain-tools/Editor/Icons/TerrainOverlays/Contrast.png";
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IBrushUIGroup commonUI {
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get
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{
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if (m_commonUI == null)
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{
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LoadSettings();
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m_commonUI = new DefaultBrushUIGroup(
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"ContrastTool",
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UpdateAnalyticParameters,
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DefaultBrushUIGroup.Feature.All,
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new DefaultBrushUIGroup.FeatureDefaults { Strength = 0.83f }
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);
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m_commonUI.OnEnterToolMode();
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}
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return m_commonUI;
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}
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}
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[SerializeField]
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float m_FeatureSize = 25.0f;
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Material m_Material = null;
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Material GetPaintMaterial()
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{
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if (m_Material == null)
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m_Material = new Material(Shader.Find("Hidden/TerrainTools/ContrastTool"));
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return m_Material;
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}
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public override int IconIndex
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{
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get { return (int) ToolIndex.SculptIndex.Contrast; }
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}
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public override TerrainCategory Category
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{
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get { return TerrainCategory.Sculpt; }
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}
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public override string GetName()
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{
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return "Effects/Contrast";
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}
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public override string GetDescription()
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{
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return "Applies a contrast filter that sharpens the Terrain features.";
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}
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public override bool HasToolSettings => true;
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public override bool HasBrushFilters => true;
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public override bool HasBrushMask => true;
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public override bool HasBrushAttributes => true;
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public override void OnEnterToolMode()
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{
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base.OnEnterToolMode();
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commonUI.OnEnterToolMode();
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}
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public override void OnExitToolMode()
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{
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base.OnExitToolMode();
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commonUI.OnExitToolMode();
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}
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public override void OnSceneGUI(Terrain terrain, IOnSceneGUI editContext)
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{
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commonUI.OnSceneGUI2D(terrain, editContext);
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// only do the rest if user mouse hits valid terrain or they are using the
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// brush parameter hotkeys to resize, etc
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if (!editContext.hitValidTerrain && !commonUI.isInUse)
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{
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return;
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}
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Texture brushTexture = editContext.brushTexture;
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// Only render preview if this is a repaint. losing performance if we do
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if (Event.current.type == EventType.Repaint)
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{
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using (IBrushRenderPreviewUnderCursor brushRender =
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new BrushRenderPreviewUIGroupUnderCursor(commonUI, "ContrastTool", brushTexture))
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{
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if (brushRender.CalculateBrushTransform(out BrushTransform brushXform))
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{
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PaintContext paintContext =
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brushRender.AcquireHeightmap(false, brushXform.GetBrushXYBounds(), 1);
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Material previewMaterial = Utility.GetDefaultPreviewMaterial(commonUI.hasEnabledFilters);
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var texelCtx = Utility.CollectTexelValidity(paintContext.originTerrain,
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brushXform.GetBrushXYBounds());
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Utility.SetupMaterialForPaintingWithTexelValidityContext(paintContext, texelCtx, brushXform,
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previewMaterial);
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var filterRT = RTUtils.GetTempHandle(paintContext.sourceRenderTexture.width,
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paintContext.sourceRenderTexture.height, 0, FilterUtility.defaultFormat);
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Utility.GenerateAndSetFilterRT(commonUI, paintContext.sourceRenderTexture, filterRT,
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previewMaterial);
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TerrainPaintUtilityEditor.DrawBrushPreview(paintContext,
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TerrainBrushPreviewMode.SourceRenderTexture,
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editContext.brushTexture, brushXform, previewMaterial, 0);
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// draw result preview
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{
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ApplyBrushInternal(brushRender, paintContext, commonUI.brushStrength, brushTexture,
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brushXform);
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// restore old render target
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RenderTexture.active = paintContext.oldRenderTexture;
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previewMaterial.SetTexture("_HeightmapOrig", paintContext.sourceRenderTexture);
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TerrainPaintUtilityEditor.DrawBrushPreview(paintContext,
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TerrainBrushPreviewMode.DestinationRenderTexture,
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editContext.brushTexture, brushXform, previewMaterial, 1);
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}
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texelCtx.Cleanup();
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RTUtils.Release(filterRT);
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brushRender.Release(paintContext);
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}
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}
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}
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// update brush UI group
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commonUI.OnSceneGUI(terrain, editContext);
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}
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bool m_ShowControls = true;
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public override void OnToolSettingsGUI(Terrain terrain, IOnInspectorGUI editContext)
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{
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m_ShowControls = TerrainToolGUIHelper.DrawHeaderFoldoutForBrush(Styles.controls, m_ShowControls, () => { m_FeatureSize = 25.0f; });
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if (m_ShowControls)
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{
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EditorGUILayout.BeginVertical("GroupBox");
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m_FeatureSize = EditorGUILayout.Slider(Styles.featureSize, m_FeatureSize, 1.0f, 100.0f);
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EditorGUILayout.EndVertical();
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}
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}
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public override void OnInspectorGUI(Terrain terrain, IOnInspectorGUI editContext)
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{
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EditorGUI.BeginChangeCheck();
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commonUI.OnInspectorGUI(terrain, editContext);
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OnToolSettingsGUI(terrain, editContext);
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if (EditorGUI.EndChangeCheck())
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{
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SaveSetting();
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TerrainToolsAnalytics.OnParameterChange();
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}
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}
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public void ApplyBrushInternal(IPaintContextRender renderer, PaintContext paintContext, float brushStrength, Texture brushTexture, BrushTransform brushXform)
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{
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Material mat = GetPaintMaterial();
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Vector4 brushParams = new Vector4(commonUI.brushStrength, 0.0f, m_FeatureSize, 0);
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mat.SetTexture("_BrushTex", brushTexture);
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mat.SetVector("_BrushParams", brushParams);
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renderer.SetupTerrainToolMaterialProperties(paintContext, brushXform, mat);
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renderer.RenderBrush(paintContext, mat, 0);
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}
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public override bool OnPaint(Terrain terrain, IOnPaint editContext)
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{
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Texture brushTexture = editContext.brushTexture;
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commonUI.OnPaint(terrain, editContext);
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if (!commonUI.allowPaint)
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{ return true; }
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using (IBrushRenderUnderCursor brushRender = new BrushRenderUIGroupUnderCursor(commonUI, "ContrastTool", brushTexture))
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{
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if (brushRender.CalculateBrushTransform(out BrushTransform brushXform))
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{
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PaintContext paintContext = brushRender.AcquireHeightmap(true, brushXform.GetBrushXYBounds(), 1);
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Material mat = GetPaintMaterial();
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var brushMask = RTUtils.GetTempHandle(paintContext.sourceRenderTexture.width, paintContext.sourceRenderTexture.height, 0, FilterUtility.defaultFormat);
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Utility.GenerateAndSetFilterRT(commonUI, paintContext.sourceRenderTexture, brushMask, mat);
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paintContext.sourceRenderTexture.filterMode = FilterMode.Bilinear;
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ApplyBrushInternal(brushRender, paintContext, commonUI.brushStrength, editContext.brushTexture, brushXform);
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RTUtils.Release(brushMask);
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}
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}
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return false;
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}
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private static class Styles
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{
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public static readonly GUIContent controls = EditorGUIUtility.TrTextContent("Contrast Tool Controls");
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public static readonly GUIContent featureSize = EditorGUIUtility.TrTextContent("Feature Size", "Larger value will affect larger features, smaller values will affect smaller features");
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}
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private void SaveSetting()
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{
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EditorPrefs.SetFloat("Unity.TerrainTools.Contrast.FeatureSize", m_FeatureSize);
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}
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private void LoadSettings()
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{
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m_FeatureSize = EditorPrefs.GetFloat("Unity.TerrainTools.Contrast.FeatureSize", 25.0f);
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}
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//Analytics Setup
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private TerrainToolsAnalytics.IBrushParameter[] UpdateAnalyticParameters() => new TerrainToolsAnalytics.IBrushParameter[]{
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new TerrainToolsAnalytics.BrushParameter<float>{Name = Styles.featureSize.text, Value = m_FeatureSize},
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};
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}
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}
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