private void OnBeginRender(Camera cam)
{
if (cam.cameraType != CameraType.SceneView)
{
return;
}
if (painter.Editor_EnableLivePreview)
{
bool canDrawLivePreview = painter.ActivePainter != null && painter.ActivePainter is IGTexturePainterWithLivePreview;
if (canDrawLivePreview)
{
Ray r = HandleUtility.GUIPointToWorldRay(Event.current.mousePosition);
RaycastHit hit;
if (GStylizedTerrain.Raycast(r, out hit, float.MaxValue, painter.GroupId))
{
DrawLivePreview(cam, hit);
}
}
}
if (painter.EnableTerrainMask)
{
DrawMask(cam);
}
}
private void Update()
{
try
{
UpdateParameters();
if (Camera.main == null)
{
return;
}
if (Painter == null)
{
return;
}
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hit = new RaycastHit();
if (GStylizedTerrain.Raycast(ray, out hit, 1000, Painter.GroupId))
{
DrawCursor(hit, true);
Paint(hit);
}
else
{
DrawCursor(hit, false);
}
}
catch (System.Exception e)
{
logs.Add(e.ToString());
ShowLogs();
}
}
private void SnapAnchorToSurface(GSplineAnchor a)
{
Ray r = new Ray(new Vector3(a.Position.x, 10000, a.Position.z), Vector3.down);
RaycastHit hit;
if (GStylizedTerrain.Raycast(r, out hit, float.MaxValue, instance.GroupId))
{
a.Position = hit.point;
}
}
private void HandleAddAnchor()
{
Ray r = HandleUtility.GUIPointToWorldRay(Event.current.mousePosition);
RaycastHit hit;
if (GStylizedTerrain.Raycast(r, out hit, float.MaxValue, instance.GroupId))
{
instance.AddAnchorAutoTangent(hit.point, selectedAnchorIndex);
selectedAnchorIndex = instance.Spline.Anchors.Count - 1;
selectedSegmentIndex = -1;
GUI.changed = true;
Event.current.Use();
}
}
private void HandleTerrainEditingInSceneView()
{
if (!painter.enabled)
{
return;
}
if (Event.current == null)
{
return;
}
if (Event.current.alt == true)
{
return;
}
if (Event.current.type != EventType.Repaint &&
Event.current.type != EventType.MouseDown &&
Event.current.type != EventType.MouseDrag &&
Event.current.type != EventType.MouseUp &&
Event.current.type != EventType.KeyDown)
{
return;
}
int controlId = GUIUtility.GetControlID(this.GetHashCode(), FocusType.Passive);
if (Event.current.type == EventType.MouseDown)
{
if (Event.current.button == 0)
{
//Set the hot control to this tool, to disable marquee selection tool on mouse dragging
GUIUtility.hotControl = controlId;
}
}
else if (Event.current.type == EventType.MouseUp)
{
GGriffinSettings.Instance.IsHidingFoliageOnEditing = false;
if (GUIUtility.hotControl == controlId)
{
//Return the hot control back to Unity, use the default
GUIUtility.hotControl = 0;
}
}
Ray r = HandleUtility.GUIPointToWorldRay(Event.current.mousePosition);
RaycastHit hit;
if (GStylizedTerrain.Raycast(r, out hit, float.MaxValue, painter.GroupId))
{
OnRaycast(true, hit);
}
else
{
OnRaycast(false, hit);
}
if (GGuiEventUtilities.IsLeftMouse)
{
Event.current.Use();
}
}
private void HandleSpawnGrass(GStylizedTerrain terrain, GFoliagePainterArgs args)
{
int grassIndex = -1;
Vector3 randomPos = Vector3.zero;
Vector3 rayOrigin = Vector3.zero;
Vector3 rayDirection = Vector3.down;
float sqrtTwo = Mathf.Sqrt(2);
Ray ray = new Ray();
RaycastHit samplePoint;
Vector3 bary0 = Vector3.zero;
Vector3 bary1 = Vector3.zero;
Vector2 maskUv = Vector2.zero;
Vector2 samplePointTexcoord = Vector2.zero;
Color maskColor = Color.white;
Texture2D clonedMask = null;
Texture2D terrainMask = null;
if (args.Mask != null)
{
clonedMask = GCommon.CloneAndResizeTexture(args.Mask, 256, 256);
}
if (args.EnableTerrainMask)
{
terrainMask = terrain.TerrainData.Mask.MaskMap;
}
int prototypeCount = terrain.TerrainData.Foliage.Grasses.Prototypes.Count;
int sampleCount = args.Density;
List <GGrassInstance> newInstances = new List <GGrassInstance>();
for (int i = 0; i < sampleCount; ++i)
{
grassIndex = args.GrassIndices[Random.Range(0, args.GrassIndices.Count)];
if (grassIndex < 0 || grassIndex >= prototypeCount)
{
continue;
}
randomPos = args.HitPoint + Random.insideUnitSphere * args.Radius * sqrtTwo;
rayOrigin.Set(
randomPos.x,
10000,
randomPos.z);
ray.origin = rayOrigin;
ray.direction = rayDirection;
if (terrain.Raycast(ray, out samplePoint, float.MaxValue))
{
GUtilities.CalculateBarycentricCoord(
new Vector2(samplePoint.point.x, samplePoint.point.z),
new Vector2(args.WorldPointCorners[0].x, args.WorldPointCorners[0].z),
new Vector2(args.WorldPointCorners[1].x, args.WorldPointCorners[1].z),
new Vector2(args.WorldPointCorners[2].x, args.WorldPointCorners[2].z),
ref bary0);
GUtilities.CalculateBarycentricCoord(
new Vector2(samplePoint.point.x, samplePoint.point.z),
new Vector2(args.WorldPointCorners[0].x, args.WorldPointCorners[0].z),
new Vector2(args.WorldPointCorners[2].x, args.WorldPointCorners[2].z),
new Vector2(args.WorldPointCorners[3].x, args.WorldPointCorners[3].z),
ref bary1);
if (bary0.x >= 0 && bary0.y >= 0 && bary0.z >= 0)
{
maskUv = bary0.x * Vector2.zero + bary0.y * Vector2.up + bary0.z * Vector2.one;
}
else if (bary1.x >= 0 && bary1.y >= 0 && bary1.z >= 0)
{
maskUv = bary1.x * Vector2.zero + bary1.y * Vector2.one + bary1.z * Vector2.right;
}
else
{
continue;
}
//sample mask
if (clonedMask != null)
{
maskColor = clonedMask.GetPixelBilinear(maskUv.x, maskUv.y);
if (Random.value > maskColor.grayscale)
{
continue;
}
}
//sample terrain mask
if (args.EnableTerrainMask)
{
samplePointTexcoord = samplePoint.textureCoord;
maskColor = terrainMask.GetPixelBilinear(samplePointTexcoord.x, samplePointTexcoord.y);
if (Random.value < maskColor.r)
{
continue;
}
}
//apply filter
GSpawnFilterArgs filterArgs = GSpawnFilterArgs.Create();
filterArgs.Terrain = terrain;
filterArgs.Position = samplePoint.point;
filterArgs.SurfaceNormal = samplePoint.normal;
filterArgs.SurfaceTexcoord = samplePoint.textureCoord;
List <Type> suitableFilter = SuitableFilterTypes;
if (args.Filters != null)
{
for (int fIndex = 0; fIndex < args.Filters.Length; ++fIndex)
{
if (args.Filters[fIndex] != null &&
args.Filters[fIndex].Ignore != true)
{
if (suitableFilter.Contains(args.Filters[fIndex].GetType()))
{
args.Filters[fIndex].Apply(ref filterArgs);
}
}
if (filterArgs.ShouldExclude)
{
break;
}
}
}
//spawn
if (filterArgs.ShouldExclude)
{
continue;
}
GGrassInstance grass = GGrassInstance.Create(grassIndex);
grass.Position = terrain.WorldPointToNormalized(filterArgs.Position);
grass.Rotation = filterArgs.Rotation;
grass.Scale = filterArgs.Scale;
newInstances.Add(grass);
}
}
terrain.TerrainData.Foliage.AddGrassInstances(newInstances);
if (clonedMask != null)
{
Object.DestroyImmediate(clonedMask);
}
}
private void SpawnObjectOnTerrain(GStylizedTerrain t, Color[] maskData, int layerIndex)
{
GObjectStampLayer layer = Layers[layerIndex];
Vector3 centerPos = Vector3.zero;
Vector3 samplePos = Vector3.zero;
Vector2 uv = Vector2.zero;
float maskValue = 0;
Vector3 terrainSize = new Vector3(
t.TerrainData.Geometry.Width,
t.TerrainData.Geometry.Height,
t.TerrainData.Geometry.Length);
Vector3 scale = new Vector3(
GUtilities.InverseLerpUnclamped(0, terrainSize.x, Scale.x),
1,
GUtilities.InverseLerpUnclamped(0, terrainSize.z, Scale.z));
Matrix4x4 matrix = Matrix4x4.TRS(
t.WorldPointToNormalized(Position),
Rotation,
scale);
int index = -1;
int instanceCount = 0;
int attempt = 0;
int maxAttempt = layer.InstanceCount * 100;
RaycastHit hit;
#if UNITY_EDITOR
string title = "Stamping on " + t.name;
string info = string.Format("Layer: {0}", !string.IsNullOrEmpty(layer.Name) ? layer.Name : layerIndex.ToString());
int currentPercent = 0;
int attemptPercent = 0;
int instancePercent = 0;
GCommonGUI.CancelableProgressBar(title, info, 0);
#endif
while (instanceCount < layer.InstanceCount && attempt <= maxAttempt)
{
attempt += 1;
#if UNITY_EDITOR
attemptPercent = (int)(attempt * 100.0f / maxAttempt);
instancePercent = (int)(instanceCount * 100.0f / layer.InstanceCount);
if (currentPercent != Mathf.Max(attemptPercent, instancePercent))
{
currentPercent = Mathf.Max(attemptPercent, instancePercent);
GCommonGUI.CancelableProgressBar(title, string.Format("{0} ... {1}%", info, currentPercent), currentPercent / 100.0f);
}
#endif
index = layer.PrototypeIndices[Random.Range(0, layer.PrototypeIndices.Count)];
if (index < 0 || index >= layer.Prototypes.Count)
{
continue;
}
GameObject g = layer.Prototypes[index];
if (g == null)
{
continue;
}
centerPos.Set(Random.value - 0.5f, 0, Random.value - 0.5f);
samplePos = matrix.MultiplyPoint(centerPos);
if (samplePos.x < 0 || samplePos.x > 1 ||
samplePos.z < 0 || samplePos.z > 1)
{
continue;
}
uv.Set(samplePos.x, samplePos.z);
maskValue = GUtilities.GetColorBilinear(maskData, MaskResolution, MaskResolution, uv).r;
if (Random.value > maskValue)
{
continue;
}
if (t.Raycast(samplePos, out hit))
{
GameObject instance = GSpawner.Spawn(t, g, hit.point);
instance.transform.rotation = Quaternion.Euler(0, Random.Range(layer.MinRotation, layer.MaxRotation), 0);
instance.transform.localScale = Vector3.Lerp(layer.MinScale, layer.MaxScale, Random.value);
if (layer.AlignToSurface)
{
instance.transform.up = hit.normal;
}
instanceCount += 1;
}
}
#if UNITY_EDITOR
GCommonGUI.ClearProgressBar();
#endif
}
private void SpawnObjectsOnTerrain(GStylizedTerrain t, Color[] maskData, List <Vector4> vertices)
{
int prototypeIndex = -1;
Vector2 v0 = Vector2.zero;
Vector2 v1 = Vector2.zero;
Vector2 v2 = Vector2.zero;
Vector2 center = Vector2.zero;
float radius = 0;
Vector2 pos = Vector2.zero;
Vector3 bary = Vector3.zero;
float maskValue = 0;
RaycastHit hit;
int trisCount = vertices.Count / 3;
for (int i = 0; i < trisCount; ++i)
{
v0 = t.WorldPointToUV(vertices[i * 3 + 0]);
v1 = t.WorldPointToUV(vertices[i * 3 + 1]);
v2 = t.WorldPointToUV(vertices[i * 3 + 2]);
center = (v0 + v1 + v2) / 3;
radius = Vector2.Distance(center, v0);
for (int s = 0; s < Density; ++s)
{
prototypeIndex = PrototypeIndices[Random.Range(0, PrototypeIndices.Count)];
if (prototypeIndex < 0 || prototypeIndex >= Prototypes.Count)
{
continue;
}
GameObject g = Prototypes[prototypeIndex];
if (g == null)
{
continue;
}
pos = center + Random.insideUnitCircle * radius;
if (pos.x < 0 || pos.x > 1 ||
pos.y < 0 || pos.x > 1)
{
continue;
}
GUtilities.CalculateBarycentricCoord(pos, v0, v1, v2, ref bary);
if (bary.x < 0 || bary.y < 0 || bary.z < 0)
{
continue;
}
maskValue = GUtilities.GetColorBilinear(maskData, MaskResolution, MaskResolution, pos).r;
if (Random.value > maskValue)
{
continue;
}
if (t.Raycast(pos.ToX0Y(), out hit))
{
GameObject instance = GSpawner.Spawn(t, g, hit.point);
instance.transform.rotation = Quaternion.Euler(0, Random.Range(MinRotation, MaxRotation), 0);
instance.transform.localScale = Vector3.Lerp(MinScale, MaxScale, Random.value);
if (AlignToSurface)
{
instance.transform.up = hit.normal;
}
}
}
}
}