public static void DrawGeometryLivePreview(GStylizedTerrain t, Camera cam, Texture newHeightMap, Rect dirtyRect)
{
if (t.transform.rotation != Quaternion.identity ||
t.transform.lossyScale != Vector3.one)
{
return;
}
Mesh previewMesh = GGriffinSettings.Instance.GetLivePreviewMesh(t.TerrainData.Geometry.MeshResolution);
Vector3 terrainSize = new Vector3(
t.TerrainData.Geometry.Width,
t.TerrainData.Geometry.Height,
t.TerrainData.Geometry.Length);
previewPropertyBlock.Clear();
previewPropertyBlock.SetTexture("_OldHeightMap", t.TerrainData.Geometry.HeightMap);
previewPropertyBlock.SetTexture("_NewHeightMap", newHeightMap);
previewPropertyBlock.SetTexture("_MainTex", newHeightMap);
previewPropertyBlock.SetFloat("_Height", t.TerrainData.Geometry.Height);
previewPropertyBlock.SetVector("_BoundMin", t.transform.position);
previewPropertyBlock.SetVector("_BoundMax", t.transform.TransformPoint(terrainSize));
Material mat = GInternalMaterials.GeometryLivePreviewMaterial;
mat.renderQueue = 4000;
int gridSize = t.TerrainData.Geometry.ChunkGridSize;
for (int x = 0; x < gridSize; ++x)
{
for (int z = 0; z < gridSize; ++z)
{
Rect uvRect = GCommon.GetUvRange(gridSize, x, z);
if (!uvRect.Overlaps(dirtyRect))
{
continue;
}
Vector3 localPos = new Vector3(
terrainSize.x * uvRect.x,
0f,
terrainSize.z * uvRect.y);
Vector3 worldPos = t.transform.TransformPoint(localPos);
Quaternion rotation = Quaternion.identity;
Vector3 scale = new Vector3(terrainSize.x * uvRect.width, 1, terrainSize.z * uvRect.height);
Graphics.DrawMesh(
previewMesh,
Matrix4x4.TRS(worldPos, rotation, scale),
mat,
LayerMask.NameToLayer("Default"),
cam,
0,
previewPropertyBlock);
}
}
}
public static void DrawSubdivLivePreview(GStylizedTerrain t, Camera cam, Texture newHeightMap, Rect dirtyRect, Texture mask, Matrix4x4 worldPointToMaskMatrix)
{
if (t.transform.rotation != Quaternion.identity ||
t.transform.lossyScale != Vector3.one)
{
return;
}
t.TerrainData.Geometry.Internal_CreateNewSubDivisionMap(newHeightMap);
GPolygonDistributionMode polygonMode = t.TerrainData.Geometry.PolygonDistribution;
int baseResolution = polygonMode == GPolygonDistributionMode.Dynamic ?
t.TerrainData.Geometry.MeshBaseResolution :
t.TerrainData.Geometry.MeshResolution;
int resolution = t.TerrainData.Geometry.MeshResolution;
int maxLevel = baseResolution + Mathf.Min(Mathf.FloorToInt(1f / GCommon.SUB_DIV_STEP), resolution - baseResolution);
Vector3 terrainSize = new Vector3(
t.TerrainData.Geometry.Width,
t.TerrainData.Geometry.Height,
t.TerrainData.Geometry.Length);
previewPropertyBlock.Clear();
previewPropertyBlock.SetColor("_Color", new Color(0, 0, 0, 0.6f));
previewPropertyBlock.SetTexture("_HeightMap", newHeightMap);
previewPropertyBlock.SetVector("_Dimension", terrainSize);
previewPropertyBlock.SetVector("_BoundMin", t.transform.position);
previewPropertyBlock.SetVector("_BoundMax", t.transform.TransformPoint(terrainSize));
previewPropertyBlock.SetTexture("_SubdivMap", t.TerrainData.Geometry.Internal_SubDivisionMap);
previewPropertyBlock.SetTexture("_Mask", mask);
previewPropertyBlock.SetMatrix("_WorldPointToMask", worldPointToMaskMatrix);
Material mat = GInternalMaterials.SubdivLivePreviewMaterial;
mat.renderQueue = 4000;
Mesh previewMesh = null;
int gridSize = t.TerrainData.Geometry.ChunkGridSize;
for (int x = 0; x < gridSize; ++x)
{
for (int z = 0; z < gridSize; ++z)
{
Rect uvRect = GCommon.GetUvRange(gridSize, x, z);
if (!uvRect.Overlaps(dirtyRect))
{
continue;
}
Vector3 localPos = new Vector3(
terrainSize.x * uvRect.x,
0f,
terrainSize.z * uvRect.y);
Vector3 worldPos = t.transform.TransformPoint(localPos);
Quaternion rotation = Quaternion.identity;
Vector3 scale = new Vector3(terrainSize.x * uvRect.width, 1, terrainSize.z * uvRect.height);
for (int i = baseResolution; i <= maxLevel; ++i)
{
previewMesh = GGriffinSettings.Instance.GetLivePreviewWireframeMesh(i);
previewPropertyBlock.SetVector("_SubdivRange", new Vector4(
(i - baseResolution) * GCommon.SUB_DIV_STEP,
i != maxLevel ? (i - baseResolution + 1) * GCommon.SUB_DIV_STEP : 1f,
0, 0));
Graphics.DrawMesh(
previewMesh,
Matrix4x4.TRS(worldPos, rotation, scale),
mat,
LayerMask.NameToLayer("Default"),
cam,
0,
previewPropertyBlock);
}
}
}
}
public Rect GetUvRange()
{
return(GCommon.GetUvRange(foliage.PatchGridSize, (int)Index.x, (int)Index.y));
}