271 lines
12 KiB
C#
271 lines
12 KiB
C#
|
using UnityEngine;
|
||
|
|
using UnityEngine.Experimental.TerrainAPI;
|
||
|
|
using UnityEditor.ShortcutManagement;
|
||
|
|
|
||
|
|
namespace UnityEditor.Experimental.TerrainAPI
|
||
|
|
{
|
||
|
|
public class TwistHeightTool : TerrainPaintTool<TwistHeightTool>
|
||
|
|
{
|
||
|
|
#if UNITY_2019_1_OR_NEWER
|
||
|
|
[Shortcut("Terrain/Select Twist Tool", typeof(TerrainToolShortcutContext))]
|
||
|
|
static void SelectShortcut(ShortcutArguments args) {
|
||
|
|
TerrainToolShortcutContext context = (TerrainToolShortcutContext)args.context;
|
||
|
|
context.SelectPaintTool<TwistHeightTool>();
|
||
|
|
TerrainToolsAnalytics.OnShortcutKeyRelease("Select Twist Tool");
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
private bool m_ShowControls = true;
|
||
|
|
|
||
|
|
[SerializeField]
|
||
|
|
IBrushUIGroup m_commonUI;
|
||
|
|
private IBrushUIGroup commonUI
|
||
|
|
{
|
||
|
|
get
|
||
|
|
{
|
||
|
|
if( m_commonUI == null )
|
||
|
|
{
|
||
|
|
LoadSettings();
|
||
|
|
m_commonUI = new DefaultBrushUIGroup("TwistTool", UpdateAnalyticParameters);
|
||
|
|
m_commonUI.OnEnterToolMode();
|
||
|
|
}
|
||
|
|
|
||
|
|
return m_commonUI;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
[SerializeField]
|
||
|
|
float m_TwistAmount = 100.0f;
|
||
|
|
|
||
|
|
[SerializeField]
|
||
|
|
bool m_AffectMaterials = true;
|
||
|
|
[SerializeField]
|
||
|
|
bool m_AffectHeight = true;
|
||
|
|
|
||
|
|
Material m_Material = null;
|
||
|
|
Material GetPaintMaterial()
|
||
|
|
{
|
||
|
|
if (m_Material == null)
|
||
|
|
m_Material = new Material(Shader.Find("Hidden/TerrainTools/TwistHeight"));
|
||
|
|
return m_Material;
|
||
|
|
}
|
||
|
|
|
||
|
|
public override string GetName()
|
||
|
|
{
|
||
|
|
return "Transform/Twist";
|
||
|
|
}
|
||
|
|
|
||
|
|
public override string GetDesc()
|
||
|
|
{
|
||
|
|
return "Click to Twist the terrain height.";
|
||
|
|
}
|
||
|
|
|
||
|
|
public override void OnEnterToolMode() {
|
||
|
|
base.OnEnterToolMode();
|
||
|
|
commonUI.OnEnterToolMode();
|
||
|
|
}
|
||
|
|
|
||
|
|
public override void OnExitToolMode() {
|
||
|
|
base.OnExitToolMode();
|
||
|
|
commonUI.OnExitToolMode();
|
||
|
|
}
|
||
|
|
|
||
|
|
public override void OnSceneGUI(Terrain terrain, IOnSceneGUI editContext)
|
||
|
|
{
|
||
|
|
commonUI.OnSceneGUI2D(terrain, editContext);
|
||
|
|
|
||
|
|
// only do the rest if user mouse hits valid terrain or they are using the
|
||
|
|
// brush parameter hotkeys to resize, etc
|
||
|
|
if (!editContext.hitValidTerrain && !commonUI.isInUse)
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// update brush UI group
|
||
|
|
commonUI.OnSceneGUI(terrain, editContext);
|
||
|
|
|
||
|
|
// dont render preview if this isnt a repaint. losing performance if we do
|
||
|
|
if (Event.current.type != EventType.Repaint)
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(commonUI.isRaycastHitUnderCursorValid)
|
||
|
|
{
|
||
|
|
Texture brushTexture = editContext.brushTexture;
|
||
|
|
|
||
|
|
using(IBrushRenderPreviewUnderCursor brushRender = new BrushRenderPreviewUIGroupUnderCursor(commonUI, "Twist", editContext.brushTexture))
|
||
|
|
{
|
||
|
|
//draw brush circle
|
||
|
|
if(brushRender.CalculateBrushTransform(out BrushTransform brushXform))
|
||
|
|
{
|
||
|
|
Material material = TerrainPaintUtilityEditor.GetDefaultBrushPreviewMaterial();
|
||
|
|
PaintContext ctx = brushRender.AcquireHeightmap(false, brushXform.GetBrushXYBounds(), 1);
|
||
|
|
|
||
|
|
brushRender.RenderBrushPreview(ctx, TerrainPaintUtilityEditor.BrushPreview.SourceRenderTexture, brushXform, TerrainPaintUtilityEditor.GetDefaultBrushPreviewMaterial(), 0);
|
||
|
|
|
||
|
|
// draw result preview
|
||
|
|
{
|
||
|
|
float finalTwistAmount = m_TwistAmount * -0.002f; //scale to a reasonable value and negate so default mode is clockwise
|
||
|
|
if (Event.current.shift) {
|
||
|
|
finalTwistAmount *= -1.0f;
|
||
|
|
}
|
||
|
|
|
||
|
|
ApplyBrushInternal(brushRender, ctx, commonUI.brushStrength, finalTwistAmount, brushTexture, brushXform);
|
||
|
|
|
||
|
|
// restore old render target
|
||
|
|
RenderTexture.active = ctx.oldRenderTexture;
|
||
|
|
|
||
|
|
material.SetTexture("_HeightmapOrig", ctx.sourceRenderTexture);
|
||
|
|
|
||
|
|
brushRender.RenderBrushPreview(ctx, TerrainPaintUtilityEditor.BrushPreview.DestinationRenderTexture, brushXform, material, 1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
public override void OnInspectorGUI(Terrain terrain, IOnInspectorGUI editContext)
|
||
|
|
{
|
||
|
|
EditorGUI.BeginChangeCheck();
|
||
|
|
|
||
|
|
commonUI.OnInspectorGUI(terrain, editContext);
|
||
|
|
|
||
|
|
m_ShowControls = TerrainToolGUIHelper.DrawHeaderFoldoutForBrush(Styles.controlHeader, m_ShowControls, Reset);
|
||
|
|
|
||
|
|
if(m_ShowControls)
|
||
|
|
{
|
||
|
|
EditorGUILayout.BeginVertical("GroupBox");
|
||
|
|
{
|
||
|
|
EditorGUILayout.BeginHorizontal();
|
||
|
|
{
|
||
|
|
EditorGUILayout.PrefixLabel(Styles.targets);
|
||
|
|
m_AffectMaterials = GUILayout.Toggle(m_AffectMaterials, Styles.materials, GUI.skin.button);
|
||
|
|
m_AffectHeight = GUILayout.Toggle(m_AffectHeight, Styles.heightmap, GUI.skin.button);
|
||
|
|
}
|
||
|
|
EditorGUILayout.EndHorizontal();
|
||
|
|
|
||
|
|
m_TwistAmount = EditorGUILayout.Slider(Styles.twistAmount, m_TwistAmount, -100.0f, 100.0f);
|
||
|
|
}
|
||
|
|
EditorGUILayout.EndVertical();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
if (EditorGUI.EndChangeCheck())
|
||
|
|
{
|
||
|
|
SaveSetting();
|
||
|
|
Save(true);
|
||
|
|
TerrainToolsAnalytics.OnParameterChange();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private void Reset()
|
||
|
|
{
|
||
|
|
m_TwistAmount = 100.0f;
|
||
|
|
|
||
|
|
m_AffectMaterials = true;
|
||
|
|
m_AffectHeight = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
void ApplyBrushInternal(IPaintContextRender renderer, PaintContext paintContext, float brushStrength, float finalTwistAmount, Texture brushTexture, BrushTransform brushXform) {
|
||
|
|
Material mat = GetPaintMaterial();
|
||
|
|
if(Event.current.control) { finalTwistAmount *= -1.0f; }
|
||
|
|
Vector4 brushParams = new Vector4(brushStrength, 0.0f, finalTwistAmount, 0.0f);
|
||
|
|
|
||
|
|
mat.SetTexture("_BrushTex", brushTexture);
|
||
|
|
mat.SetVector("_BrushParams", brushParams);
|
||
|
|
|
||
|
|
renderer.SetupTerrainToolMaterialProperties(paintContext, brushXform, mat);
|
||
|
|
renderer.RenderBrush(paintContext, mat, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
|
||
|
|
{
|
||
|
|
commonUI.OnPaint(terrain, editContext);
|
||
|
|
|
||
|
|
if(commonUI.allowPaint)
|
||
|
|
{
|
||
|
|
Texture brushTexture = editContext.brushTexture;
|
||
|
|
|
||
|
|
using(IBrushRenderUnderCursor brushRender = new BrushRenderUIGroupUnderCursor(commonUI, "Twist", brushTexture))
|
||
|
|
{
|
||
|
|
if(brushRender.CalculateBrushTransform(out BrushTransform brushXform))
|
||
|
|
{
|
||
|
|
float finalTwistAmount = m_TwistAmount * -0.001f; //scale to a reasonable value and negate so default mode is clockwise
|
||
|
|
if(Event.current.shift)
|
||
|
|
{
|
||
|
|
finalTwistAmount *= -1.0f;
|
||
|
|
}
|
||
|
|
|
||
|
|
Material mat = GetPaintMaterial();
|
||
|
|
Vector4 brushParams = new Vector4(commonUI.brushStrength, 0.0f, finalTwistAmount, 0.0f);
|
||
|
|
mat.SetTexture("_BrushTex", editContext.brushTexture);
|
||
|
|
mat.SetVector("_BrushParams", brushParams);
|
||
|
|
|
||
|
|
//twist splat map
|
||
|
|
if (m_AffectMaterials)
|
||
|
|
{
|
||
|
|
for (int i = 0; i < terrain.terrainData.terrainLayers.Length; i++)
|
||
|
|
{
|
||
|
|
TerrainLayer layer = terrain.terrainData.terrainLayers[i];
|
||
|
|
PaintContext paintContext = brushRender.AcquireTexture(true, brushXform.GetBrushXYBounds(), layer);
|
||
|
|
var brushMask = RTUtils.GetTempHandle(paintContext.sourceRenderTexture.width, paintContext.sourceRenderTexture.height, 0, FilterUtility.defaultFormat);
|
||
|
|
Utility.SetFilterRT(commonUI, paintContext.sourceRenderTexture, brushMask, mat);
|
||
|
|
paintContext.sourceRenderTexture.filterMode = FilterMode.Bilinear;
|
||
|
|
brushRender.SetupTerrainToolMaterialProperties(paintContext, brushXform, mat);
|
||
|
|
brushRender.RenderBrush(paintContext, mat, 0);
|
||
|
|
brushRender.Release(paintContext);
|
||
|
|
RTUtils.Release(brushMask);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//twist height map
|
||
|
|
if(m_AffectHeight)
|
||
|
|
{
|
||
|
|
PaintContext paintContext = brushRender.AcquireHeightmap(true, brushXform.GetBrushXYBounds(), 1);
|
||
|
|
var brushMask = RTUtils.GetTempHandle(paintContext.sourceRenderTexture.width, paintContext.sourceRenderTexture.height, 0, FilterUtility.defaultFormat);
|
||
|
|
Utility.SetFilterRT(commonUI, paintContext.sourceRenderTexture, brushMask, mat);
|
||
|
|
paintContext.sourceRenderTexture.filterMode = FilterMode.Bilinear;
|
||
|
|
ApplyBrushInternal(brushRender, paintContext, commonUI.brushStrength, finalTwistAmount, brushTexture, brushXform);
|
||
|
|
brushRender.Release(paintContext);
|
||
|
|
RTUtils.Release(brushMask);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
private static class Styles
|
||
|
|
{
|
||
|
|
public static readonly GUIContent controlHeader = EditorGUIUtility.TrTextContent("Twist Height Controls");
|
||
|
|
public static readonly GUIContent targets = EditorGUIUtility.TrTextContent("Targets", "Determines which textures the twist operations target");
|
||
|
|
public static readonly GUIContent twistAmount = EditorGUIUtility.TrTextContent("Twist Amount", "Negative values twist clockwise, Positive values twist counter clockwise");
|
||
|
|
public static readonly GUIContent materials = EditorGUIUtility.TrTextContent("Materials");
|
||
|
|
public static readonly GUIContent heightmap = EditorGUIUtility.TrTextContent("Heightmap");
|
||
|
|
}
|
||
|
|
|
||
|
|
private void SaveSetting()
|
||
|
|
{
|
||
|
|
EditorPrefs.SetFloat("Unity.TerrainTools.Twist.TwistAmount", m_TwistAmount);
|
||
|
|
EditorPrefs.SetBool("Unity.TerrainTools.Twist.Heightmap", m_AffectHeight);
|
||
|
|
EditorPrefs.SetBool("Unity.TerrainTools.Twist.Materials", m_AffectMaterials);
|
||
|
|
}
|
||
|
|
|
||
|
|
private void LoadSettings()
|
||
|
|
{
|
||
|
|
m_TwistAmount = EditorPrefs.GetFloat("Unity.TerrainTools.Twist.TwistAmount", 100.0f);
|
||
|
|
m_AffectHeight = EditorPrefs.GetBool("Unity.TerrainTools.Twist.Heightmap", true);
|
||
|
|
m_AffectMaterials = EditorPrefs.GetBool("Unity.TerrainTools.Twist.Materials", true);
|
||
|
|
}
|
||
|
|
|
||
|
|
#region Analytics
|
||
|
|
private TerrainToolsAnalytics.IBrushParameter[] UpdateAnalyticParameters() => new TerrainToolsAnalytics.IBrushParameter[]{
|
||
|
|
new TerrainToolsAnalytics.BrushParameter<float>{Name = Styles.twistAmount.text, Value = m_TwistAmount},
|
||
|
|
new TerrainToolsAnalytics.BrushParameter<bool>{Name = "Affect Height", Value = m_AffectHeight},
|
||
|
|
new TerrainToolsAnalytics.BrushParameter<bool>{Name = "Affect Material", Value = m_AffectMaterials},
|
||
|
|
};
|
||
|
|
#endregion
|
||
|
|
}
|
||
|
|
}
|