internal abstract void RegisterUndo(BrushTarget brushTarget);
internal override void OnBrushSettingsChanged(BrushTarget target, BrushSettings settings)
{
base.OnBrushSettingsChanged(target, settings);
RebuildColorTargets(brushColor, settings.strength);
}
// Called whenever the brush is moved. Note that @target may have a null editableObject.
internal override void OnBrushMove(BrushTarget target, BrushSettings settings)
{
base.OnBrushMove(target, settings);
}
void OnBrushEnter(BrushTarget target, BrushSettings settings)
{
mode.OnBrushEnter(target.editableObject, settings);
}
/// <summary>
/// Draw gizmos taking into account handling of normal by smooth brush mode.
/// </summary>
/// <param name="target">Current target Object</param>
///// <param name="settings">Current brush settings</param>
internal override void DrawGizmos(BrushTarget target, BrushSettings settings)
{
UpdateBrushGizmosColor();
Vector3 normal = s_SmoothDirection.value.ToVector3();
int rayCount = target.raycastHits.Count;
PolyMesh mesh = target.editableObject.editMesh;
int vertexCount = mesh.vertexCount;
Vector3[] normals = (s_SmoothDirection == PolyDirection.BrushNormal) ? mesh.normals : null;
// don't use target.GetAllWeights because brush normal needs
// to know which ray to use for normal
for (int ri = 0; ri < rayCount; ri++)
{
PolyRaycastHit hit = target.raycastHits[ri];
if (hit.weights == null || hit.weights.Length < vertexCount)
{
continue;
}
if (s_SmoothDirection == PolyDirection.BrushNormal)
{
if (s_UseFirstNormalVector && brushNormalOnBeginApply.Count > ri)
{
normal = brushNormalOnBeginApply[ri];
}
else
{
// get the highest weighted vertex to use its direction computation
float highestWeight = .0001f;
int highestIndex = -1;
for (int i = 0; i < commonVertexCount; i++)
{
int index = commonVertices[i][0];
if (hit.weights[index] < .0001f || (s_IgnoreOpenEdges && nonManifoldIndices.Contains(index)))
{
continue;
}
if (hit.weights[index] > highestWeight)
{
highestIndex = index;
}
}
if (highestIndex != -1)
{
normal = Math.WeightedAverage(normals, neighborLookup[highestIndex], hit.weights).normalized;
}
else
{
normal = hit.normal;
}
}
}
else if (s_SmoothDirection == PolyDirection.VertexNormal)
{
normal = hit.normal;
}
PolyHandles.DrawBrush(hit.position, normal, settings, target.localToWorldMatrix, innerColor, outerColor);
}
}
/// <summary>
/// Calculates the per-vertex weight for each raycast hit and fills in brush target weights.
/// </summary>
/// <param name="target"></param>
/// <param name="settings"></param>
/// <param name="tool"></param>
/// <param name="bMode"></param>
internal static void CalculateWeightedVertices(BrushTarget target, BrushSettings settings, BrushTool tool = BrushTool.None, BrushMode bMode = null)
{
//null checks
if (target == null || settings == null)
{
return;
}
if (target.editableObject == null)
{
return;
}
bool uniformScale = PolyMath.VectorIsUniform(target.transform.lossyScale);
float scale = uniformScale ? 1f / target.transform.lossyScale.x : 1f;
PolyMesh mesh = target.editableObject.visualMesh;
if (tool == BrushTool.Texture && mesh.subMeshCount > 1)
{
var mode = bMode as BrushModeTexture;
int[] submeshIndices = mesh.subMeshes[mode.currentMeshACIndex].indexes;
//List<List<int>> common = PolyMeshUtility.GetCommonVertices(mesh);
Transform transform = target.transform;
int vertexCount = mesh.vertexCount;
Vector3[] vertices = mesh.vertices;
if (!uniformScale)
{
Vector3[] world = new Vector3[vertexCount];
for (int i = 0; i < vertexCount; i++)
{
world[i] = transform.TransformPoint(vertices[i]);
}
vertices = world;
}
AnimationCurve curve = settings.falloffCurve;
float radius = settings.radius * scale, falloff_mag = Mathf.Max((radius - radius * settings.falloff), 0.00001f);
Vector3 hitPosition = Vector3.zero;
PolyRaycastHit hit;
for (int n = 0; n < target.raycastHits.Count; n++)
{
hit = target.raycastHits[n];
hit.SetVertexCount(vertexCount);
for (int i = 0; i < vertexCount; i++)
{
hit.weights[i] = 0f;
}
hitPosition = uniformScale ? hit.position : transform.TransformPoint(hit.position);
for (int i = 0; i < submeshIndices.Length; i++)
{
int currentIndex = submeshIndices[i];
float dist = (hitPosition - vertices[currentIndex]).magnitude;
float delta = radius - dist;
if (delta >= 0)
{
float weight = Mathf.Clamp(curve.Evaluate(1f - Mathf.Clamp(delta / falloff_mag, 0f, 1f)), 0f, 1f);
hit.weights[currentIndex] = weight;
}
}
}
}
else
{
List <List <int> > common = PolyMeshUtility.GetCommonVertices(mesh);
Transform transform = target.transform;
int vertexCount = mesh.vertexCount;
Vector3[] vertices = mesh.vertices;
if (!uniformScale)
{
Vector3[] world = new Vector3[vertexCount];
for (int i = 0; i < vertexCount; i++)
{
world[i] = transform.TransformPoint(vertices[i]);
}
vertices = world;
}
AnimationCurve curve = settings.falloffCurve;
float radius = settings.radius * scale, falloff_mag = Mathf.Max((radius - radius * settings.falloff), 0.00001f);
Vector3 hitPosition = Vector3.zero;
PolyRaycastHit hit;
for (int n = 0; n < target.raycastHits.Count; n++)
{
hit = target.raycastHits[n];
hit.SetVertexCount(vertexCount);
hitPosition = uniformScale ? hit.position : transform.TransformPoint(hit.position);
for (int i = 0; i < common.Count; i++)
{
int commonArrayCount = common[i].Count;
float sqrDist = (hitPosition - vertices[common[i][0]]).sqrMagnitude;
if (sqrDist > radius * radius)
{
for (int j = 0; j < commonArrayCount; j++)
{
hit.weights[common[i][j]] = 0f;
}
}
else
{
float weight = Mathf.Clamp(curve.Evaluate(1f - Mathf.Clamp((radius - Mathf.Sqrt(sqrDist)) / falloff_mag, 0f, 1f)), 0f, 1f);
for (int j = 0; j < commonArrayCount; j++)
{
hit.weights[common[i][j]] = weight;
}
}
}
}
}
target.GetAllWeights(true);
}
/// <summary>
/// Calculates the per-vertex weight for each raycast hit and fills in brush target weights.
/// </summary>
/// <param name="target"></param>
/// <param name="settings"></param>
/// <param name="tool"></param>
/// <param name="bMode"></param>
internal static void CalculateWeightedVertices(BrushTarget target, BrushSettings settings, BrushTool tool = BrushTool.None, BrushMode bMode = null)
{
if (target == null || settings == null)
{
return;
}
if (target.editableObject == null)
{
return;
}
bool uniformScale = Math.VectorIsUniform(target.transform.lossyScale);
float scale = uniformScale ? 1f / target.transform.lossyScale.x : 1f;
PolyMesh mesh = target.editableObject.visualMesh;
Transform transform = target.transform;
int vertexCount = mesh.vertexCount;
Vector3[] vertices = mesh.vertices;
if (!uniformScale)
{
// As we only increase size only when it's needed, always make sure to
// use the vertexCount variable in loop statements and not the buffer length.
if (s_WorldBuffer.Length < vertexCount)
{
System.Array.Resize <Vector3>(ref s_WorldBuffer, vertexCount);
}
for (int i = 0; i < vertexCount; i++)
{
s_WorldBuffer[i] = transform.TransformPoint(vertices[i]);
}
vertices = s_WorldBuffer;
}
AnimationCurve curve = settings.falloffCurve;
float radius = settings.radius * scale, falloff_mag = Mathf.Max((radius - radius * settings.falloff), 0.00001f);
Vector3 hitPosition = Vector3.zero;
PolyRaycastHit hit;
if (tool == BrushTool.Texture && mesh.subMeshCount > 1)
{
var mode = bMode as BrushModeTexture;
int[] submeshIndices = mesh.subMeshes[mode.currentMeshACIndex].indexes;
for (int n = 0; n < target.raycastHits.Count; n++)
{
hit = target.raycastHits[n];
hit.SetVertexCount(vertexCount);
for (int i = 0; i < vertexCount; i++)
{
hit.weights[i] = 0f;
}
hitPosition = uniformScale ? hit.position : transform.TransformPoint(hit.position);
for (int i = 0; i < submeshIndices.Length; i++)
{
int currentIndex = submeshIndices[i];
float dist = (hitPosition - vertices[currentIndex]).magnitude;
float delta = radius - dist;
if (delta >= 0)
{
float weight = Mathf.Clamp(curve.Evaluate(1f - Mathf.Clamp(delta / falloff_mag, 0f, 1f)), 0f, 1f);
hit.weights[currentIndex] = weight;
}
}
}
}
else
{
int[][] common = PolyMeshUtility.GetCommonVertices(mesh);
Vector3 buf = Vector3.zero;
for (int n = 0; n < target.raycastHits.Count; n++)
{
hit = target.raycastHits[n];
hit.SetVertexCount(vertexCount);
hitPosition = uniformScale ? hit.position : transform.TransformPoint(hit.position);
for (int i = 0; i < common.Length; i++)
{
int[] commonItem = common[i];
int commonArrayCount = commonItem.Length;
Math.Subtract(vertices[commonItem[0]], hitPosition, ref buf);
float sqrDist = buf.sqrMagnitude;
if (sqrDist > radius * radius)
{
for (int j = 0; j < commonArrayCount; j++)
{
hit.weights[commonItem[j]] = 0f;
}
}
else
{
float weight = Mathf.Clamp(curve.Evaluate(1f - Mathf.Clamp((radius - Mathf.Sqrt(sqrDist)) / falloff_mag, 0f, 1f)), 0f, 1f);
for (int j = 0; j < commonArrayCount; j++)
{
hit.weights[commonItem[j]] = weight;
}
}
}
}
}
target.GetAllWeights(true);
}
/// <summary>
/// Handle Undo locally since it doesn't follow the same pattern as mesh modifications.
/// </summary>
/// <param name="brushTarget"></param>
internal override void RegisterUndo(BrushTarget brushTarget)
{
}
internal override void OnBrushSettingsChanged(BrushTarget target, BrushSettings settings)
{
base.OnBrushSettingsChanged(target, settings);
m_MeshVertexColors.RebuildColorTargets(m_BrushColor, settings.strength, mask);
}
// Called whenever the brush is moved. Note that @target may have a null editableObject.
internal override void OnBrushMove(BrushTarget target, BrushSettings settings)
{
base.OnBrushMove(target, settings);
if (!Util.IsValid(target))
{
return;
}
bool invert = settings.isUserHoldingControl;
PolyMesh mesh = target.editableObject.editMesh;
int vertexCount = mesh.vertexCount;
float[] weights = target.GetAllWeights();
switch (paintMode)
{
case PaintMode.Flood:
for (int i = 0; i < vertexCount; i++)
{
m_MeshVertexColors.Colors[i] = invert? s_WhiteColor : m_MeshVertexColors.TargetColors[i];
}
break;
case PaintMode.Fill:
System.Array.Copy(m_MeshVertexColors.OriginalColors, m_MeshVertexColors.Colors, vertexCount);
int[] indices = target.editableObject.editMesh.GetTriangles();
int index = 0;
foreach (PolyRaycastHit hit in target.raycastHits)
{
if (hit.triangle > -1)
{
index = hit.triangle * 3;
m_MeshVertexColors.Colors[indices[index + 0]] = invert ? s_WhiteColor : m_MeshVertexColors.TargetColors[indices[index + 0]];
m_MeshVertexColors.Colors[indices[index + 1]] = invert ? s_WhiteColor : m_MeshVertexColors.TargetColors[indices[index + 1]];
m_MeshVertexColors.Colors[indices[index + 2]] = invert ? s_WhiteColor : m_MeshVertexColors.TargetColors[indices[index + 2]];
m_FillModeEdges[0].x = indices[index + 0];
m_FillModeEdges[0].y = indices[index + 1];
m_FillModeEdges[1].x = indices[index + 1];
m_FillModeEdges[1].y = indices[index + 2];
m_FillModeEdges[2].x = indices[index + 2];
m_FillModeEdges[2].y = indices[index + 0];
for (int i = 0; i < 3; i++)
{
if (m_TriangleLookup.TryGetValue(m_FillModeEdges[i], out m_FillModeAdjacentTriangles))
{
for (int n = 0; n < m_FillModeAdjacentTriangles.Count; n++)
{
index = m_FillModeAdjacentTriangles[n] * 3;
m_MeshVertexColors.Colors[indices[index + 0]] = invert ? s_WhiteColor : m_MeshVertexColors.TargetColors[indices[index + 0]];
m_MeshVertexColors.Colors[indices[index + 1]] = invert ? s_WhiteColor : m_MeshVertexColors.TargetColors[indices[index + 1]];
m_MeshVertexColors.Colors[indices[index + 2]] = invert ? s_WhiteColor : m_MeshVertexColors.TargetColors[indices[index + 2]];
}
}
}
}
}
break;
default:
{
for (int i = 0; i < vertexCount; i++)
{
m_MeshVertexColors.Colors[i] = Util.Lerp(m_MeshVertexColors.OriginalColors[i],
invert ? m_MeshVertexColors.EraseColors[i] : m_MeshVertexColors.TargetColors[i],
mask,
weights[i]);
}
break;
}
}
target.editableObject.editMesh.colors = m_MeshVertexColors.Colors;
target.editableObject.ApplyMeshAttributes(MeshChannel.Color);
}
/// <summary>
/// Calculate the weights for this ray.
/// </summary>
/// <param name="mouseRay">The ray used to calculate weights</param>
/// <param name="target">The object on which to calculate the weights</param>
/// <returns>true if mouseRay hits the target, false otherwise</returns>
bool DoMeshRaycast(Ray mouseRay, BrushTarget target, MirrorSettings mirrorSettings)
{
m_SecondaryBrushTargets.Clear();
if (!Util.IsValid(target))
{
return(false);
}
target.ClearRaycasts();
EditableObject editable = target.editableObject;
s_Rays.Clear();
s_Rays.Add(mouseRay);
if (mirrorSettings.Axes != BrushMirror.None)
{
for (int i = 0; i < 3; i++)
{
if (((uint)mirrorSettings.Axes & (1u << i)) < 1)
{
continue;
}
int len = s_Rays.Count;
for (int n = 0; n < len; n++)
{
Vector3 flipVec = ((BrushMirror)(1u << i)).ToVector3();
if (mirrorSettings.Space == MirrorCoordinateSpace.World)
{
Vector3 cen = editable.gameObjectAttached.GetComponent <Renderer>().bounds.center;
s_Rays.Add(new Ray(Vector3.Scale(s_Rays[n].origin - cen, flipVec) + cen,
Vector3.Scale(s_Rays[n].direction, flipVec)));
}
else
{
Transform t = SceneView.lastActiveSceneView.camera.transform;
Vector3 o = t.InverseTransformPoint(s_Rays[n].origin);
Vector3 d = t.InverseTransformDirection(s_Rays[n].direction);
s_Rays.Add(new Ray(t.TransformPoint(Vector3.Scale(o, flipVec)),
t.TransformDirection(Vector3.Scale(d, flipVec))));
}
}
}
}
bool hitMesh = false;
int[] triangles = editable.editMesh.GetTriangles();
foreach (Ray ray in s_Rays)
{
PolyRaycastHit hit;
if (PolySceneUtility.WorldRaycast(ray, editable.transform, editable.visualMesh.vertices, triangles,
out hit))
{
target.raycastHits.Add(hit);
hitMesh = true;
}
}
PolySceneUtility.CalculateWeightedVertices(target, brushSettings, tool, mode);
if (hitMesh)
{
Transform[] trs = Selection.GetTransforms(SelectionMode.Unfiltered);
var hits = target.raycastHits;
foreach (var selectedTransform in trs)
{
bool isValid = false;
if (selectedTransform != editable.transform)
{
BrushTarget secondaryTarget = GetOrCreateBrushTarget(selectedTransform.gameObject);
isValid = Util.IsValid(secondaryTarget);
if (isValid)
{
m_SecondaryBrushTargets.Add(secondaryTarget);
secondaryTarget.ClearRaycasts();
foreach (var hit in hits)
{
PolyRaycastHit secondaryHit = new PolyRaycastHit(hit.distance,
secondaryTarget.transform.InverseTransformPoint(editable.transform.TransformPoint(hit.position)),
hit.normal,
-1);
secondaryTarget.raycastHits.Add(secondaryHit);
}
}
PolySceneUtility.CalculateWeightedVertices(secondaryTarget, brushSettings, tool, mode);
}
}
}
return(hitMesh);
}
/// <summary>
/// Update the current brush object and weights with the current mouse position.
/// </summary>
/// <param name="mousePosition">current mouse position (from Event)</param>
/// <param name="isDrag">optional, is dragging the mouse cursor</param>
/// <param name="overridenGO">optional, provides an already selected gameobject (used in unit tests only)</param>
/// <param name="overridenRay"> optional, provides a ray already created (used in unit tests only)</param>
internal void UpdateBrush(Vector2 mousePosition, bool isUserHoldingControl = false, bool isUserHoldingShift = false, bool isDrag = false, GameObject overridenGO = null, Ray?overridenRay = null)
{
MirrorSettings mirrorSettings = m_BrushMirrorEditor.settings;
// Must check HandleUtility.PickGameObject only during MouseMoveEvents or errors will rain.
GameObject go = null;
brushTarget = null;
GameObject cur = null;
#if UNITY_2021_1_OR_NEWER
int materialIndex;
cur = HandleUtility.PickGameObject(mousePosition, false, null, Selection.gameObjects, out materialIndex);
if (cur != null)
{
brushTarget = GetOrCreateBrushTarget(cur);
}
if (brushTarget != null)
{
go = cur;
}
#else
int max = 0; // safeguard against unforeseen while loop errors crashing unity
do
{
int tmp;
// overloaded PickGameObject ignores array of GameObjects, this is used
// when there are non-selected gameObjects between the mouse and selected
// gameObjects.
cur = overridenGO;
if (cur == null)
{
m_IgnoreDrag.RemoveAll(x => x == null);
cur = HandleUtility.PickGameObject(mousePosition, m_IgnoreDrag.ToArray(), out tmp);
}
if (cur != null)
{
if (!PolyEditorUtility.InSelection(cur))
{
if (!m_IgnoreDrag.Contains(cur))
{
m_IgnoreDrag.Add(cur);
}
}
else
{
brushTarget = GetOrCreateBrushTarget(cur);
if (brushTarget != null)
{
go = cur;
}
else
{
m_IgnoreDrag.Add(cur);
}
}
}
} while(go == null && cur != null && max++ < 128);
#endif
bool mouseHoverTargetChanged = false;
Ray mouseRay = overridenRay != null ? (Ray)overridenRay : HandleUtility.GUIPointToWorldRay(mousePosition);
// if the mouse hover picked up a valid editable, raycast against that. otherwise
// raycast all meshes in selection
if (go == null)
{
foreach (var kvp in m_Hovering)
{
BrushTarget t = kvp.Value;
if (Util.IsValid(t) && DoMeshRaycast(mouseRay, t, mirrorSettings))
{
brushTarget = t;
go = t.gameObject;
break;
}
}
}
else
{
if (!DoMeshRaycast(mouseRay, brushTarget, mirrorSettings))
{
brushTarget = null;
return;
}
}
// if m_Hovering off another gameobject, call OnBrushExit on that last one and mark the
// target as having been changed
if (go != m_LastHoveredGameObject)
{
if (m_LastHoveredGameObject)
{
OnBrushExit(m_LastHoveredGameObject);
}
if (m_ApplyingBrush)
{
mode.OnBrushFinishApply(brushTarget, brushSettings);
}
mouseHoverTargetChanged = true;
m_LastHoveredGameObject = go;
foreach (var secondaryTarget in m_LastSecondaryBrushTargets)
{
if (!m_SecondaryBrushTargets.Contains(secondaryTarget))
{
OnBrushExit(secondaryTarget.gameObject);
if (m_ApplyingBrush)
{
mode.OnBrushFinishApply(brushTarget, brushSettings);
}
}
}
}
if (brushTarget == null)
{
SceneView.RepaintAll();
DoRepaint();
m_LastSecondaryBrushTargets.Clear();
m_SecondaryBrushTargets.Clear();
return;
}
brushSettings.isUserHoldingControl = isUserHoldingControl;
brushSettings.isUserHoldingShift = isUserHoldingShift;
if (mouseHoverTargetChanged)
{
foreach (var secondaryTarget in m_SecondaryBrushTargets)
{
if (!m_LastSecondaryBrushTargets.Contains(secondaryTarget))
{
OnBrushEnter(secondaryTarget, brushSettings);
if (m_ApplyingBrush)
{
mode.OnBrushBeginApply(secondaryTarget, brushSettings);
}
}
}
//The active brushtarget is the last one to notify the brush
OnBrushEnter(brushTarget, brushSettings);
// brush is in use, adding a new object to the undo
if (m_ApplyingBrush)
{
if (!m_UndoQueue.Contains(go))
{
int curGroup = Undo.GetCurrentGroup();
brushTarget.editableObject.isDirty = true;
OnBrushBeginApply(brushTarget, brushSettings);
Undo.CollapseUndoOperations(curGroup);
}
else
{
mode.OnBrushBeginApply(brushTarget, brushSettings);
}
}
}
m_LastSecondaryBrushTargets.Clear();
m_LastSecondaryBrushTargets.AddRange(m_SecondaryBrushTargets);
OnBrushMove();
SceneView.RepaintAll();
DoRepaint();
}
void OnGUI()
{
Profiler.BeginSample("Polybrush GUI");
Event e = Event.current;
GUILayout.Space(8);
DoContextMenu();
DrawToolbar();
CheckForEscapeKey(e);
// Call current mode GUI
if (mode != null)
{
m_Scroll = EditorGUILayout.BeginScrollView(m_Scroll);
DrawBrushSettings();
m_BrushMirrorEditor.OnGUI();
if (tool != BrushTool.None)
{
DrawActiveToolmodeSettings();
}
EditorGUILayout.Space();
if (EditorGUI.EndChangeCheck())
{
mode.OnBrushSettingsChanged(brushTarget, brushSettings);
}
EditorGUILayout.EndScrollView();
}
#if POLYBRUSH_DEBUG
GUILayout.Label("DEBUG", EditorStyles.boldLabel);
GUILayout.Label("target: " + (Util.IsValid(brushTarget) ? brushTarget.editableObject.gameObjectAttached.name : "null"));
GUILayout.Label("vertex: " + (Util.IsValid(brushTarget) ? brushTarget.editableObject.vertexCount : 0));
GUILayout.Label("applying: " + m_ApplyingBrush);
GUILayout.Label("lockBrushToFirst: " + s_LockBrushToFirst);
GUILayout.Label("lastHoveredGameObject: " + m_LastHoveredGameObject);
GUILayout.Space(6);
foreach (var kvp in m_Hovering)
{
BrushTarget t = kvp.Value;
EditableObject dbg_editable = t.editableObject;
GUILayout.Label("Vertex Streams: " + dbg_editable.usingVertexStreams);
GUILayout.Label("Original: " + (dbg_editable.originalMesh == null ? "null" : dbg_editable.originalMesh.name));
GUILayout.Label("Active: " + (dbg_editable.editMesh == null ? "null" : dbg_editable.editMesh.name));
GUILayout.Label("Graphics: " + (dbg_editable.graphicsMesh == null ? "null" : dbg_editable.graphicsMesh.name));
}
#endif
if (m_WantsRepaint)
{
m_WantsRepaint = false;
Repaint();
}
Profiler.EndSample();
}
// Called whenever the brush is moved. Note that @target may have a null editableObject.
internal override void OnBrushMove(BrushTarget target, BrushSettings settings)
{
base.OnBrushMove(target, settings);
if (!Util.IsValid(target) || !m_LikelySupportsTextureBlending)
{
return;
}
bool invert = settings.isUserHoldingControl;
float[] weights;
if (paintMode == PaintMode.Brush)
{
weights = target.GetAllWeights();
}
else if (paintMode == PaintMode.Flood)
{
weights = new float[m_VertexCount];
for (int i = 0; i < m_VertexCount; i++)
{
weights[i] = 1f;
}
}
else
{
weights = new float[m_VertexCount];
int[] indices = target.editableObject.editMesh.GetTriangles();
int index = 0;
float weightTarget = 1f;
foreach (PolyRaycastHit hit in target.raycastHits)
{
if (hit.triangle > -1)
{
index = hit.triangle * 3;
m_FillModeEdges[0].x = indices[index + 0];
m_FillModeEdges[0].y = indices[index + 1];
m_FillModeEdges[1].x = indices[index + 1];
m_FillModeEdges[1].y = indices[index + 2];
m_FillModeEdges[2].x = indices[index + 2];
m_FillModeEdges[2].y = indices[index + 0];
for (int i = 0; i < 3; i++)
{
if (m_TriangleLookup.TryGetValue(m_FillModeEdges[i], out m_FillModeAdjacentTriangles))
{
for (int n = 0; n < m_FillModeAdjacentTriangles.Count; n++)
{
index = m_FillModeAdjacentTriangles[n] * 3;
weights[indices[index]] = weightTarget;
weights[indices[index + 1]] = weightTarget;
weights[indices[index + 2]] = weightTarget;
}
}
}
}
}
}
if (m_SelectedAttributeIndex < 0 || m_SelectedAttributeIndex >= meshAttributes.Length)
{
SetBrushColorWithAttributeIndex(0);
}
int mask = meshAttributes[m_SelectedAttributeIndex].mask;
splat_current.LerpWeights(splat_cache, invert ? splat_erase : splat_target, mask, weights);
splat_current.Apply(target.editableObject.editMesh);
target.editableObject.ApplyMeshAttributes();
}
/// <summary>
/// Called whenever the brush is moved. Note that @target may have a null editableObject.
/// </summary>
/// <param name="target">Current target of the brush</param>
/// <param name="settings">Current brush settings</param>
internal virtual void OnBrushMove(BrushTarget target, BrushSettings settings)
{
UpdateTempComponent(target, settings);
}
internal override void DrawGizmos(BrushTarget target, BrushSettings settings)
{
PolyMesh mesh = target.editableObject.editMesh;
if (Util.IsValid(target) && paintMode == PaintMode.Fill)
{
Vector3[] vertices = mesh.vertices;
int[] indices = mesh.GetTriangles();
PolyHandles.PushMatrix();
PolyHandles.PushHandleColor();
Handles.matrix = target.transform.localToWorldMatrix;
int index = 0;
foreach (PolyRaycastHit hit in target.raycastHits)
{
if (hit.triangle > -1)
{
Handles.color = Color.green;
index = hit.triangle * 3;
Handles.DrawLine(vertices[indices[index + 0]] + hit.normal * .1f, vertices[indices[index + 1]] + hit.normal * .1f);
Handles.DrawLine(vertices[indices[index + 1]] + hit.normal * .1f, vertices[indices[index + 2]] + hit.normal * .1f);
Handles.DrawLine(vertices[indices[index + 2]] + hit.normal * .1f, vertices[indices[index + 0]] + hit.normal * .1f);
m_FillModeEdges[0].x = indices[index + 0];
m_FillModeEdges[0].y = indices[index + 1];
m_FillModeEdges[1].x = indices[index + 1];
m_FillModeEdges[1].y = indices[index + 2];
m_FillModeEdges[2].x = indices[index + 2];
m_FillModeEdges[2].y = indices[index + 0];
for (int i = 0; i < 3; i++)
{
if (m_TriangleLookup.TryGetValue(m_FillModeEdges[i], out m_FillModeAdjacentTriangles))
{
for (int n = 0; n < m_FillModeAdjacentTriangles.Count; n++)
{
index = m_FillModeAdjacentTriangles[n] * 3;
Handles.DrawLine(vertices[indices[index + 0]] + hit.normal * .1f, vertices[indices[index + 1]] + hit.normal * .1f);
Handles.DrawLine(vertices[indices[index + 1]] + hit.normal * .1f, vertices[indices[index + 2]] + hit.normal * .1f);
Handles.DrawLine(vertices[indices[index + 2]] + hit.normal * .1f, vertices[indices[index + 0]] + hit.normal * .1f);
}
}
}
}
}
PolyHandles.PopHandleColor();
PolyHandles.PopMatrix();
}
else
{
base.DrawGizmos(target, settings);
}
}
/// <summary>
/// Called when the mouse begins a drag across a valid target.
/// </summary>
/// <param name="target"> The object the mouse is dragging on</param>
/// <param name="settings">Current brush settings</param>
internal virtual void OnBrushBeginApply(BrushTarget target, BrushSettings settings)
{
}
void PlaceGameObject(PolyRaycastHit hit, PrefabAndSettings prefabAndSettings, BrushTarget target, BrushSettings settings)
{
if (prefabAndSettings == null)
{
return;
}
GameObject prefab = prefabAndSettings.gameObject;
var worldPosition = target.transform.TransformPoint(hit.position);
var worldNormal = target.transform.TransformDirection(hit.normal);
Ray ray = RandomRay(worldPosition, worldNormal, settings.radius, settings.falloff, settings.falloffCurve);
ray.origin = target.transform.InverseTransformPoint(ray.origin);
ray.direction = target.transform.InverseTransformDirection(ray.direction);
PolyRaycastHit rand_hit;
Vector3[] vertices = target.editableObject.editMesh.vertices;
int[] triangles = target.editableObject.editMesh.GetTriangles();
if (PolySceneUtility.MeshRaycast(ray, vertices, triangles, out rand_hit))
{
PlacementSettings placementSettings = prefabAndSettings.settings;
Vector3 scaleSetting = prefab.transform.localScale;
if (placementSettings.uniformBool)
{
float uniformScale = Random.Range(placementSettings.uniformScale.x, placementSettings.uniformScale.y);
scaleSetting *= uniformScale;
}
else
{
if (placementSettings.xScaleBool)
{
scaleSetting.x = Random.Range(placementSettings.scaleRangeMin.x, placementSettings.scaleRangeMax.x);
}
if (placementSettings.yScaleBool)
{
scaleSetting.y = Random.Range(placementSettings.scaleRangeMin.y, placementSettings.scaleRangeMax.y);
}
if (placementSettings.zScaleBool)
{
scaleSetting.z = Random.Range(placementSettings.scaleRangeMin.z, placementSettings.scaleRangeMax.z);
}
}
Vector3 rotationSetting = Vector3.zero;
if (placementSettings.xRotationBool)
{
rotationSetting.x = Random.Range(placementSettings.rotationRangeMin.x, placementSettings.rotationRangeMax.x);
}
if (placementSettings.yRotationBool)
{
rotationSetting.y = Random.Range(placementSettings.rotationRangeMin.y, placementSettings.rotationRangeMax.y);
}
if (placementSettings.xRotationBool)
{
rotationSetting.z = Random.Range(placementSettings.rotationRangeMin.z, placementSettings.rotationRangeMax.z);
}
Quaternion rotation = SceneView.lastActiveSceneView.in2DMode ?
Quaternion.FromToRotation(-Vector3.forward, target.transform.TransformDirection(rand_hit.normal)):
Quaternion.FromToRotation(Vector3.up, target.transform.TransformDirection(rand_hit.normal));
GameObject inst = (GameObject)PrefabUtility.InstantiatePrefab(prefab);
inst.transform.position = target.transform.TransformPoint(rand_hit.position);
inst.transform.rotation = rotation;
inst.transform.localScale = scaleSetting;
float pivotOffset = s_UsePivotForPlacement ? 0f : GetPivotOffset(inst);
inst.name = FormatInstanceName(prefab);
inst.transform.position = inst.transform.position - (inst.transform.up * pivotOffset);
inst.transform.rotation = inst.transform.rotation * Quaternion.Euler(rotationSetting);
if (SceneView.lastActiveSceneView.in2DMode)
{
inst.transform.position += Vector3.back * s_2DDepthOffset;
}
if (s_AvoidOverlappingGameObjects && TestIntersection(inst))
{
Object.DestroyImmediate(inst);
return;
}
if (s_ParentObjectWithSurface)
{
inst.transform.SetParent(target.transform);
}
m_PrefabsInstances.Add(inst);
Undo.RegisterCreatedObjectUndo(inst, UndoMessage);
}
}
/// <summary> /// Called every time the brush should apply itself to a valid target. Default is on mouse move. /// </summary> /// <param name="target">Object on which to apply the brush</param> /// <param name="settings">Current brush settings</param> internal abstract void OnBrushApply(BrushTarget target, BrushSettings settings);
internal override void OnBrushApply(BrushTarget target, BrushSettings settings)
{
if (!likelyToSupportVertexSculpt)
{
return;
}
int rayCount = target.raycastHits.Count;
Vector3 v, t, avg, dirVec = s_SmoothDirection.value.ToVector3();
Plane plane = new Plane(Vector3.up, Vector3.zero);
PolyMesh mesh = target.editableObject.editMesh;
Vector3[] normals = (s_SmoothDirection == PolyDirection.BrushNormal) ? mesh.normals : null;
int vertexCount = mesh.vertexCount;
// don't use target.GetAllWeights because brush normal needs
// to know which ray to use for normal
for (int ri = 0; ri < rayCount; ri++)
{
PolyRaycastHit hit = target.raycastHits[ri];
if (hit.weights == null || hit.weights.Length < vertexCount)
{
continue;
}
for (int i = 0; i < commonVertexCount; i++)
{
int index = commonVertices[i][0];
if (hit.weights[index] < .0001f || (s_IgnoreOpenEdges && nonManifoldIndices.Contains(index)))
{
continue;
}
v = vertices[index];
if (s_SmoothDirection == PolyDirection.VertexNormal)
{
avg = Math.Average(vertices, neighborLookup[index]);
}
else
{
avg = Math.WeightedAverage(vertices, neighborLookup[index], hit.weights);
if (s_SmoothDirection == PolyDirection.BrushNormal)
{
if (s_UseFirstNormalVector)
{
dirVec = brushNormalOnBeginApply[ri].normalized;
}
else
{
dirVec = Math.WeightedAverage(normals, neighborLookup[index], hit.weights).normalized;
}
}
plane.SetNormalAndPosition(dirVec, avg);
avg = v - dirVec * plane.GetDistanceToPoint(v);
}
t = Vector3.Lerp(v, avg, hit.weights[index]);
int[] indices = commonVertices[i];
Vector3 pos = v + (t - v) * settings.strength * SMOOTH_STRENGTH_MODIFIER;
for (int n = 0; n < indices.Length; n++)
{
vertices[indices[n]] = pos;
}
}
}
mesh.vertices = vertices;
if (tempComponent != null)
{
tempComponent.OnVerticesMoved(mesh);
}
base.OnBrushApply(target, settings);
}
/// <summary>
/// Called when a brush application has finished. Use this to clean up temporary resources or apply
/// deferred actions to a mesh (rebuild UV2, tangents, whatever).
/// </summary>
/// <param name="target">The Object the brush was being applied on</param>
/// <param name="settings">Current brush settings</param>
internal virtual void OnBrushFinishApply(BrushTarget target, BrushSettings settings)
{
DestroyTempComponent();
}
internal override void OnBrushSettingsChanged(BrushTarget target, BrushSettings settings)
{
base.OnBrushSettingsChanged(target, settings);
}
/// <summary>
/// Draw scene gizmos. Base implementation draws the brush preview.
/// </summary>
/// <param name="target">Current target Object</param>
/// <param name="settings">Current brush settings</param>
internal virtual void DrawGizmos(BrushTarget target, BrushSettings settings)
{
UpdateBrushGizmosColor();
foreach (PolyRaycastHit hit in target.raycastHits)
{
PolyHandles.DrawBrush(hit.position, hit.normal, settings, target.localToWorldMatrix, innerColor, outerColor);
}
#if Z_DEBUG
#if Z_DRAW_WEIGHTS || DRAW_PER_VERTEX_ATTRIBUTES
float[] w = target.GetAllWeights();
#endif
#if Z_DRAW_WEIGHTS
Mesh m = target.mesh;
Vector3[] v = m.vertices;
GUIContent content = new GUIContent("", "");
Handles.BeginGUI();
for (int i = 0; i < v.Length; i++)
{
if (w[i] < .0001f)
{
continue;
}
content.text = w[i].ToString("F2");
GUI.Label(HandleUtility.WorldPointToSizedRect(target.transform.TransformPoint(v[i]), content, EditorStyles.label), content);
}
Handles.EndGUI();
#endif
#if DRAW_PER_VERTEX_ATTRIBUTES
Mesh m = target.editableObject.editMesh;
Color32[] colors = m.colors;
Vector4[] tangents = m.tangents;
List <Vector4> uv0 = m.uv0;
List <Vector4> uv1 = m.uv1;
List <Vector4> uv2 = m.uv2;
List <Vector4> uv3 = m.uv3;
int vertexCount = m.vertexCount;
Vector3[] verts = m.vertices;
GUIContent gc = new GUIContent("");
List <List <int> > common = MeshUtility.GetCommonVertices(m);
System.Text.StringBuilder sb = new System.Text.StringBuilder();
Handles.BeginGUI();
foreach (List <int> l in common)
{
if (w[l[0]] < .001)
{
continue;
}
Vector3 v = target.transform.TransformPoint(verts[l[0]]);
if (colors != null)
{
sb.AppendLine("color: " + colors[l[0]].ToString("F2"));
}
if (tangents != null)
{
sb.AppendLine("tangent: " + tangents[l[0]].ToString("F2"));
}
if (uv0 != null && uv0.Count == vertexCount)
{
sb.AppendLine("uv0: " + uv0[l[0]].ToString("F2"));
}
if (uv1 != null && uv1.Count == vertexCount)
{
sb.AppendLine("uv1: " + uv1[l[0]].ToString("F2"));
}
if (uv2 != null && uv2.Count == vertexCount)
{
sb.AppendLine("uv2: " + uv2[l[0]].ToString("F2"));
}
if (uv3 != null && uv3.Count == vertexCount)
{
sb.AppendLine("uv3: " + uv3[l[0]].ToString("F2"));
}
gc.text = sb.ToString();
sb.Remove(0, sb.Length); // @todo .NET 4.0
GUI.Label(HandleUtility.WorldPointToSizedRect(v, gc, EditorStyles.label), gc);
}
Handles.EndGUI();
#endif
#endif
}
internal override void OnBrushBeginApply(BrushTarget target, BrushSettings settings)
{
base.OnBrushBeginApply(target, settings);
m_PrefabsInstances = PolySceneUtility.FindInstancesInScene(prefabPalette.prefabs.Select(x => x.gameObject), FormatInstanceName).ToList();
}
internal override void OnBrushBeginApply(BrushTarget brushTarget, BrushSettings brushSettings)
{
base.OnBrushBeginApply(brushTarget, brushSettings);
}
