public static GTreeInstance Create(int prototypeIndex)
{
GTreeInstance tree = new GTreeInstance();
tree.PrototypeIndex = prototypeIndex;
tree.Position = Vector3.zero;
tree.Rotation = Quaternion.identity;
tree.Scale = Vector3.one;
return(tree);
}
private static void RenderTreesInstanced_NonInstanced(GStylizedTerrain t, Camera cam, List <int> flags, List <Vector3> worldPositions)
{
List <GTreePrototype> prototypes = t.TerrainData.Foliage.Trees.Prototypes;
List <GTreeInstance> instances = t.TerrainData.Foliage.TreeInstances;
int instanceCount = instances.Count;
int subMeshCount = 0;
int materialCount = 0;
int drawCallCount = 0;
int d;
for (int i = 0; i < instanceCount; ++i)
{
if (flags[i] != FLAG_NON_INSTANCED)
{
continue;
}
GTreeInstance tree = instances[i];
GTreePrototype proto = prototypes[tree.PrototypeIndex];
subMeshCount = proto.SharedMesh.subMeshCount;
materialCount = proto.SharedMaterials.Length;
drawCallCount = Mathf.Min(subMeshCount, materialCount);
for (d = 0; d < drawCallCount; ++d)
{
Graphics.DrawMesh(
proto.SharedMesh,
Matrix4x4.TRS(worldPositions[i] + Vector3.up * proto.PivotOffset, tree.Rotation * proto.BaseRotation, tree.Scale.Mul(proto.BaseScale)),
proto.SharedMaterials[d],
proto.Layer,
cam, //camera
d, //sub mesh index
null, //properties block
proto.ShadowCastingMode,
proto.ReceiveShadow,
null, //probe anchor
LightProbeUsage.BlendProbes,
null); //proxy volume
}
}
}
private void CreateStaticObstacles(GStylizedTerrain t)
{
if (t.TerrainData == null)
{
return;
}
if (t.TerrainData.Foliage.Trees == null)
{
return;
}
if (t.TerrainData.Foliage.Trees.Prototypes.Count == 0)
{
return;
}
#if UNITY_EDITOR
string title = "Creating static obstacles";
string info = t.name;
GCommonGUI.CancelableProgressBar(title, info, 0);
#endif
Vector3 terrainSize = new Vector3(
t.TerrainData.Geometry.Width,
t.TerrainData.Geometry.Height,
t.TerrainData.Geometry.Length);
Transform root = GUtilities.GetChildrenWithName(transform, string.Format("{0}_{1}", t.name, t.GetInstanceID()));
List <GTreePrototype> prototypes = t.TerrainData.Foliage.Trees.Prototypes;
GameObject[] templates = new GameObject[prototypes.Count];
for (int i = 0; i < prototypes.Count; ++i)
{
if (!prototypes[i].IsValid)
{
continue;
}
GameObject template = Instantiate(prototypes[i].Prefab) as GameObject;
Component[] components = template.GetComponentsInChildren <Component>();
for (int j = 0; j < components.Length; ++j)
{
if (components[j] is Collider)
{
GUtilities.DestroyObject(components[j]);
}
if (components[j] is MeshRenderer)
{
MeshRenderer mr = components[j] as MeshRenderer;
mr.sharedMaterials = new Material[] { GInternalMaterials.NavHelperDummyGameObjectMaterial };
mr.shadowCastingMode = UnityEngine.Rendering.ShadowCastingMode.Off;
mr.receiveShadows = false;
}
}
#if UNITY_EDITOR
GameObjectUtility.SetStaticEditorFlags(template, StaticEditorFlags.NavigationStatic);
#endif
template.name = prototypes[i].Prefab.name;
templates[i] = template;
}
List <GTreeInstance> instances = t.TerrainData.Foliage.TreeInstances;
for (int i = 0; i < instances.Count; ++i)
{
#if UNITY_EDITOR
GCommonGUI.CancelableProgressBar(title, info, i * 1.0f / instances.Count);
#endif
GTreeInstance tree = instances[i];
if (templates[tree.PrototypeIndex] == null)
{
continue;
}
GameObject g = Instantiate(templates[tree.PrototypeIndex]) as GameObject;
g.transform.parent = root;
Vector3 localPos = new Vector3(
tree.Position.x * terrainSize.x,
tree.Position.y * terrainSize.y,
tree.Position.z * terrainSize.z);
Vector3 worldPos = t.transform.TransformPoint(localPos);
g.transform.position = worldPos;
g.transform.rotation = tree.Rotation;
g.transform.localScale = tree.Scale;
g.name = templates[tree.PrototypeIndex].name;
}
for (int i = 0; i < templates.Length; ++i)
{
GUtilities.DestroyGameobject(templates[i]);
}
#if UNITY_EDITOR
GCommonGUI.ClearProgressBar();
#endif
}
private void LateUpdate()
{
if (Terrain == null)
{
return;
}
if (Terrain.TerrainData == null)
{
return;
}
if (Terrain.TerrainData.Foliage.Trees == null)
{
return;
}
if (Terrain.TerrainData.Foliage.Trees.Prototypes.Count == 0)
{
return;
}
GameObject actualTarget = null;
if (Target != null)
{
actualTarget = Target;
}
else if (Camera.main != null)
{
actualTarget = Camera.main.gameObject;
}
if (actualTarget == null)
{
return;
}
Vector3 terrainSize = new Vector3(
Terrain.TerrainData.Geometry.Width,
Terrain.TerrainData.Geometry.Height,
Terrain.TerrainData.Geometry.Length);
Vector3 targetLocalPos = Terrain.transform.InverseTransformPoint(actualTarget.transform.position);
Vector3 treeLocalPos = Vector3.zero;
float sqrDistance = distance * distance;
TreeInstances.Clear();
List <GTreeInstance> instances = Terrain.TerrainData.Foliage.TreeInstances;
for (int i = 0; i < instances.Count; ++i)
{
GTreeInstance tree = instances[i];
treeLocalPos.Set(
tree.Position.x * terrainSize.x,
tree.Position.y * terrainSize.y,
tree.Position.z * terrainSize.z);
if (Vector3.SqrMagnitude(targetLocalPos - treeLocalPos) <= sqrDistance)
{
TreeInstances.Add(tree);
}
}
Vector3 targetNormalizePos = Terrain.WorldPointToNormalized(actualTarget.transform.position);
TreeInstances.Sort((t0, t1) =>
{
float d0 = Vector3.SqrMagnitude(targetNormalizePos - t0.Position);
float d1 = Vector3.SqrMagnitude(targetNormalizePos - t1.Position);
return(d0.CompareTo(d1));
});
List <GTreePrototype> prototypes = Terrain.TerrainData.Foliage.Trees.Prototypes;
int colliderIndex = 0;
for (int i = 0; i < TreeInstances.Count; ++i)
{
GTreeInstance tree = TreeInstances[i];
GTreePrototype prototype = prototypes[tree.PrototypeIndex];
if (!prototype.HasCollider)
{
continue;
}
if (colliderIndex >= ColliderBudget)
{
break;
}
CapsuleCollider col = GetCollider(colliderIndex);
colliderIndex += 1;
Vector3 localPos = new Vector3(
terrainSize.x * tree.Position.x,
terrainSize.y * tree.Position.y,
terrainSize.z * tree.Position.z);
Vector3 worldPos = Terrain.transform.TransformPoint(localPos);
col.transform.position = worldPos;
col.transform.rotation = tree.Rotation;
col.transform.localScale = tree.Scale;
GTreeColliderInfo colliderInfo = prototype.ColliderInfo;
col.center = colliderInfo.Center;
col.radius = colliderInfo.Radius;
col.height = colliderInfo.Height;
col.direction = colliderInfo.Direction;
col.gameObject.layer = prototype.Layer;
col.gameObject.tag = prototype.Prefab.tag;
col.gameObject.SetActive(true);
}
for (int i = colliderIndex; i < ColliderBudget; ++i)
{
CapsuleCollider col = GetCollider(i);
col.gameObject.SetActive(false);
}
}
private static void RenderTreesNonInstanced(GStylizedTerrain t, Camera cam)
{
if (t.TerrainData.Foliage.Trees == null ||
t.TerrainData.Foliage.Trees.Prototypes.Count == 0)
{
return;
}
List <GTreePrototype> prototypes = t.TerrainData.Foliage.Trees.Prototypes;
List <GTreeInstance> instances = t.TerrainData.Foliage.TreeInstances;
int prototypeCount = prototypes.Count;
int instanceCount = instances.Count;
bool[] prototypeValidation = new bool[prototypeCount];
int[] prototypeSubMeshCount = new int[prototypeCount];
for (int pIndex = 0; pIndex < prototypeCount; ++pIndex)
{
prototypeValidation[pIndex] = prototypes[pIndex].IsValid;
prototypeSubMeshCount[pIndex] = prototypeValidation[pIndex] ? prototypes[pIndex].SharedMesh.subMeshCount : 0;
if (prototypeValidation[pIndex] == true &&
prototypes[pIndex].Billboard != null &&
prototypes[pIndex].Billboard.material != null)
{
try
{
Material mat = prototypes[pIndex].Billboard.material;
mat.SetVectorArray(IMAGE_TEXCOORDS_PROPERTY, prototypes[pIndex].Billboard.GetImageTexCoords());
mat.SetInt(IMAGE_COUNT_PROPERTY, prototypes[pIndex].Billboard.imageCount);
}
catch { }
}
}
Quaternion billboardShadowCasterRotation = Quaternion.identity;
Light[] directionalLights = Light.GetLights(LightType.Directional, 0);
Light firstDirLight = null;
if (directionalLights.Length > 0)
{
firstDirLight = directionalLights[0];
billboardShadowCasterRotation = Quaternion.Euler(0, firstDirLight.transform.root.eulerAngles.y, 0);
}
float sqrBillboardStart = t.TerrainData.Rendering.BillboardStart * t.TerrainData.Rendering.BillboardStart;
float sqrTreeDistance = t.TerrainData.Rendering.TreeDistance * t.TerrainData.Rendering.TreeDistance;
float sqrDistance = 0;
Vector3 dimension = new Vector3(
t.TerrainData.Geometry.Width,
t.TerrainData.Geometry.Height,
t.TerrainData.Geometry.Length);
Vector3 localPos = Vector3.zero;
Vector3 worldPos = Vector3.zero;
int prototypeMaxIndex = prototypeCount - 1;
GTreePrototype p = null;
int subMeshCount = 0;
int materialCount = 0;
int drawCallCount = 0;
int i = 0;
int d = 0;
Vector3 camLocalPos = t.transform.InverseTransformPoint(cam.transform.position);
for (i = 0; i < instanceCount; ++i)
{
GTreeInstance tree = instances[i];
if (tree.PrototypeIndex < 0 || tree.PrototypeIndex > prototypeMaxIndex)
{
continue;
}
if (!prototypeValidation[tree.PrototypeIndex])
{
continue;
}
localPos.Set(
tree.Position.x * dimension.x,
tree.Position.y * dimension.y,
tree.Position.z * dimension.z);
sqrDistance = Vector3.SqrMagnitude(localPos - camLocalPos);
if (sqrDistance > sqrTreeDistance)
{
continue;
}
worldPos = t.transform.TransformPoint(localPos);
p = prototypes[tree.PrototypeIndex];
if (sqrDistance < sqrBillboardStart)
{
subMeshCount = prototypeSubMeshCount[tree.PrototypeIndex];
materialCount = p.SharedMaterials.Length;
drawCallCount = Mathf.Min(subMeshCount, materialCount);
for (d = 0; d < drawCallCount; ++d)
{
Graphics.DrawMesh(
p.SharedMesh,
Matrix4x4.TRS(worldPos + Vector3.up * p.PivotOffset, p.BaseRotation * tree.Rotation, tree.Scale.Mul(p.BaseScale)),
p.SharedMaterials[d],
p.Layer,
cam, //camera
d, //sub mesh index
null, //properties block
p.ShadowCastingMode,
p.ReceiveShadow,
null, //probe anchor
LightProbeUsage.BlendProbes,
null); //proxy volume
}
}
else
{
if (p.Billboard == null)
{
continue;
}
if (p.Billboard.material == null)
{
continue;
}
Vector3 lookDir = cam.transform.position - worldPos;
lookDir.y = 0;
Quaternion rotation = Quaternion.LookRotation(-lookDir, Vector3.up);
Mesh billboardMesh = ResourceManager.GetBillboardMesh(p.Billboard);
Graphics.DrawMesh(
billboardMesh,
Matrix4x4.TRS(worldPos + Vector3.up * p.PivotOffset, rotation, tree.Scale),
p.Billboard.material,
p.Layer,
cam, //camera
0, //sub mesh index
null, //properties block
ShadowCastingMode.Off,
false, //receive shadow
null, //probe anchor
LightProbeUsage.BlendProbes,
null); //proxy volume
if (p.ShadowCastingMode == ShadowCastingMode.Off)
{
continue;
}
if (firstDirLight == null)
{
continue;
}
Graphics.DrawMesh(
billboardMesh,
Matrix4x4.TRS(worldPos + Vector3.up * p.PivotOffset, billboardShadowCasterRotation, tree.Scale),
p.Billboard.material,
p.Layer,
cam, //camera
0, //sub mesh index
null, //properties block
ShadowCastingMode.ShadowsOnly,
false, //receive shadow
null, //probe anchor
LightProbeUsage.Off,
null); //proxy volume
}
}
}
private static void RenderTreesInstanced_InstancedBillboard(GStylizedTerrain t, Camera cam, List <int> flags, List <Vector3> worldPositions)
{
List <GTreePrototype> prototypes = t.TerrainData.Foliage.Trees.Prototypes;
List <GTreeInstance> instances = t.TerrainData.Foliage.TreeInstances;
int prototypeCount = prototypes.Count;
int instanceCount = instances.Count;
int batchInstanceCount = 0;
Light[] directionalLights = Light.GetLights(LightType.Directional, 0);
Light firstDirLight = null;
if (directionalLights.Length > 0)
{
firstDirLight = directionalLights[0];
}
Quaternion billboardShadowCasterRotation = Quaternion.Euler(0, firstDirLight.transform.root.eulerAngles.y, 0);
for (int p = 0; p < prototypeCount; ++p)
{
for (int i = 0; i <= instanceCount; ++i)
{
//render batch
if ((instanceCount == i ||
batchInstanceCount == MAX_INSTANCE_PER_BATCH) &&
batchInstanceCount > 0)
{
Mesh billboardMesh = ResourceManager.GetBillboardMesh(prototypes[p].Billboard);
Graphics.DrawMeshInstanced(
billboardMesh,
0, //submesh index
prototypes[p].Billboard.material,
batchMatrices,
batchInstanceCount,
null, //properties
ShadowCastingMode.Off,
false, //receive shadow
prototypes[p].Layer,
cam,
LightProbeUsage.BlendProbes,
null); //proxy volume
if (prototypes[p].ShadowCastingMode == ShadowCastingMode.Off)
{
continue;
}
if (firstDirLight == null)
{
continue;
}
Graphics.DrawMeshInstanced(
billboardMesh,
0, //submesh index
prototypes[p].Billboard.material,
batchMatricesShadowCaster,
batchInstanceCount,
null, //properties
ShadowCastingMode.ShadowsOnly,
false, //receive shadow
prototypes[p].Layer,
cam,
LightProbeUsage.BlendProbes,
null); //proxy volume
batchInstanceCount = 0;
}
if (instanceCount == i)
{
break;
}
if (flags[i] != FLAG_INSTANCED_BILLBOARD)
{
continue;
}
GTreeInstance tree = instances[i];
if (tree.PrototypeIndex != p)
{
continue;
}
Vector3 lookDir = cam.transform.position - worldPositions[i];
lookDir.y = 0;
Quaternion rotation = Quaternion.LookRotation(-lookDir, Vector3.up);
batchMatrices[batchInstanceCount] = Matrix4x4.TRS(worldPositions[i] + Vector3.up * prototypes[p].PivotOffset, rotation, tree.Scale);
batchMatricesShadowCaster[batchInstanceCount] = Matrix4x4.TRS(worldPositions[i] + Vector3.up * prototypes[p].PivotOffset, billboardShadowCasterRotation, tree.Scale);
batchInstanceCount += 1;
}
}
}
private static void RenderTreesInstanced_Instanced(GStylizedTerrain t, Camera cam, List <int> flags, List <Vector3> worldPositions)
{
List <GTreePrototype> prototypes = t.TerrainData.Foliage.Trees.Prototypes;
List <GTreeInstance> instances = t.TerrainData.Foliage.TreeInstances;
int prototypeCount = prototypes.Count;
int instanceCount = instances.Count;
int subMeshCount = 0;
int materialCount = 0;
int drawCallCount = 0;
int batchInstanceCount = 0;
for (int p = 0; p < prototypeCount; ++p)
{
for (int i = 0; i <= instanceCount; ++i)
{
//render batch
if ((instanceCount == i ||
batchInstanceCount == MAX_INSTANCE_PER_BATCH) &&
batchInstanceCount > 0)
{
subMeshCount = prototypes[p].SharedMesh.subMeshCount;
materialCount = prototypes[p].SharedMaterials.Length;
drawCallCount = Mathf.Min(subMeshCount, materialCount);
for (int d = 0; d < drawCallCount; ++d)
{
Graphics.DrawMeshInstanced(
prototypes[p].SharedMesh,
d,
prototypes[p].SharedMaterials[d],
batchMatrices,
batchInstanceCount,
null, //properties
prototypes[p].ShadowCastingMode,
prototypes[p].ReceiveShadow,
prototypes[p].Layer,
cam,
LightProbeUsage.BlendProbes,
null); //proxy volume
}
batchInstanceCount = 0;
}
if (instanceCount == i)
{
break;
}
if (flags[i] != FLAG_INSTANCED)
{
continue;
}
GTreeInstance tree = instances[i];
if (tree.PrototypeIndex != p)
{
continue;
}
batchMatrices[batchInstanceCount] = Matrix4x4.TRS(
worldPositions[i] + Vector3.up * prototypes[p].PivotOffset,
tree.Rotation * prototypes[p].BaseRotation,
tree.Scale.Mul(prototypes[p].BaseScale));
batchInstanceCount += 1;
}
}
}
private static void RenderTreesInstanced_NonInstancedBillboard(GStylizedTerrain t, Camera cam, List <int> flags, List <Vector3> worldPositions)
{
List <GTreePrototype> prototypes = t.TerrainData.Foliage.Trees.Prototypes;
List <GTreeInstance> instances = t.TerrainData.Foliage.TreeInstances;
int instanceCount = instances.Count;
Light[] directionalLights = Light.GetLights(LightType.Directional, 0);
Light firstDirLight = null;
if (directionalLights.Length > 0)
{
firstDirLight = directionalLights[0];
}
Quaternion billboardShadowCasterRotation = Quaternion.Euler(0, firstDirLight.transform.root.eulerAngles.y, 0);
for (int i = 0; i < instanceCount; ++i)
{
if (flags[i] != FLAG_NON_INSTANCED_BILLBOARD)
{
continue;
}
GTreeInstance tree = instances[i];
GTreePrototype proto = prototypes[tree.PrototypeIndex];
Vector3 lookDir = cam.transform.position - worldPositions[i];
lookDir.y = 0;
Quaternion rotation = Quaternion.LookRotation(-lookDir, Vector3.up);
Mesh billboardMesh = ResourceManager.GetBillboardMesh(proto.Billboard);
Graphics.DrawMesh(
billboardMesh,
Matrix4x4.TRS(worldPositions[i] + Vector3.up * proto.PivotOffset, rotation, instances[i].Scale),
proto.Billboard.material,
proto.Layer,
cam, //camera
0, //sub mesh index
null, //properties block
ShadowCastingMode.Off,
false, //receive shadow
null, //probe anchor
LightProbeUsage.BlendProbes,
null); //proxy volume
if (proto.ShadowCastingMode == ShadowCastingMode.Off)
{
continue;
}
if (firstDirLight == null)
{
continue;
}
Graphics.DrawMesh(
billboardMesh,
Matrix4x4.TRS(worldPositions[i], billboardShadowCasterRotation, instances[i].Scale),
proto.Billboard.material,
proto.Layer,
cam, //camera
0, //sub mesh index
null, //properties block
ShadowCastingMode.ShadowsOnly,
false, //receive shadow
null, //probe anchor
LightProbeUsage.Off,
null); //proxy volume
}
}
private static void PreprocessRendering(GStylizedTerrain t, Camera cam, List <int> flags, List <Vector3> worldPositions)
{
flags.Clear();
worldPositions.Clear();
List <GTreePrototype> prototypes = t.TerrainData.Foliage.Trees.Prototypes;
List <GTreeInstance> instances = t.TerrainData.Foliage.TreeInstances;
int prototypeCount = prototypes.Count;
int instanceCount = instances.Count;
bool[] prototypeValidation = new bool[prototypeCount];
for (int pIndex = 0; pIndex < prototypeCount; ++pIndex)
{
prototypeValidation[pIndex] = prototypes[pIndex].IsValid;
}
float sqrTreeDistance = t.TerrainData.Rendering.TreeDistance * t.TerrainData.Rendering.TreeDistance;
float sqrBillboardDistance = t.TerrainData.Rendering.BillboardStart * t.TerrainData.Rendering.BillboardStart;
float sqrDistance = 0;
Bounds bound = new Bounds();
Vector3 boundSize = Vector3.zero;
Vector3 boundCenter = Vector3.zero;
Vector3 dimension = new Vector3(
t.TerrainData.Geometry.Width,
t.TerrainData.Geometry.Height,
t.TerrainData.Geometry.Length);
Vector3 localPos = Vector3.zero;
Vector3 worldPos = Vector3.zero;
bool isInstancingEnabledForAllSharedMaterials = true;
frustumPlanes = GeometryUtility.CalculateFrustumPlanes(cam);
for (int i = 0; i < instanceCount; ++i)
{
GTreeInstance tree = instances[i];
//invalid prototype index
if (tree.PrototypeIndex < 0 || tree.PrototypeIndex >= prototypeCount)
{
flags.Add(FLAG_CULLED);
worldPositions.Add(Vector3.zero);
continue;
}
if (prototypeValidation[tree.PrototypeIndex] == false)
{
flags.Add(FLAG_CULLED);
worldPositions.Add(Vector3.zero);
continue;
}
GTreePrototype proto = prototypes[tree.PrototypeIndex];
//cull layer
if (cam.cullingMask >= 0 && (cam.cullingMask & (1 << proto.Layer)) == 0)
{
flags.Add(FLAG_CULLED);
worldPositions.Add(Vector3.zero);
continue;
}
localPos.Set(
dimension.x * tree.Position.x,
dimension.y * tree.Position.y,
dimension.z * tree.Position.z);
worldPos = t.transform.TransformPoint(localPos);
sqrDistance = Vector3.SqrMagnitude(worldPos - cam.transform.position);
//cull distance
if (sqrDistance > sqrTreeDistance)
{
flags.Add(FLAG_CULLED);
worldPositions.Add(Vector3.zero);
continue;
}
//cull frustum
boundSize.Set(
proto.SharedMesh.bounds.size.x * tree.Scale.x,
proto.SharedMesh.bounds.size.y * tree.Scale.y,
proto.SharedMesh.bounds.size.z * tree.Scale.z);
boundCenter = worldPos;
bound.size = boundSize;
bound.center = boundCenter;
if (!GeometryUtility.TestPlanesAABB(frustumPlanes, bound))
{
flags.Add(FLAG_CULLED);
worldPositions.Add(Vector3.zero);
continue;
}
//cull no billboard
if (sqrDistance >= sqrBillboardDistance &&
(proto.Billboard == null || proto.Billboard.material == null))
{
flags.Add(FLAG_CULLED);
worldPositions.Add(Vector3.zero);
continue;
}
//the object will be rendered
worldPositions.Add(worldPos);
//determine render mode
if (sqrDistance >= sqrBillboardDistance)
{
if (proto.Billboard.material.enableInstancing)
{
flags.Add(FLAG_INSTANCED_BILLBOARD);
}
else
{
flags.Add(FLAG_NON_INSTANCED_BILLBOARD);
}
}
else
{
isInstancingEnabledForAllSharedMaterials = true;
for (int mIndex = 0; mIndex < proto.SharedMaterials.Length; ++mIndex)
{
if (!proto.SharedMaterials[mIndex].enableInstancing)
{
isInstancingEnabledForAllSharedMaterials = false;
break;
}
}
if (isInstancingEnabledForAllSharedMaterials)
{
flags.Add(FLAG_INSTANCED);
}
else
{
flags.Add(FLAG_NON_INSTANCED);
}
}
}
}
public int GetTreeMemStats()
{
return(TreeInstances.Count * GTreeInstance.GetStructSize());
}
