private void DrawLivePreview(GStylizedTerrain t, Camera cam)
{
if (t.transform.rotation != Quaternion.identity ||
t.transform.lossyScale != Vector3.one)
{
return;
}
//Mesh previewMesh = GGriffinSettings.Instance.GetLivePreviewMesh(t.TerrainData.Geometry.MeshResolution);
RenderTexture rt = GetPreviewTexture(t);
instance.GetQuad(worldPoints);
for (int i = 0; i < normalizedPoints.Length; ++i)
{
normalizedPoints[i] = t.WorldPointToUV(worldPoints[i]);
}
Rect dirtyRect = GUtilities.GetRectContainsPoints(normalizedPoints);
if (instance.Channel == GGeometryStamper.GStampChannel.Elevation)
{
GLivePreviewDrawer.DrawGeometryLivePreview(t, cam, rt, dirtyRect);
}
else if (instance.Channel == GGeometryStamper.GStampChannel.Visibility)
{
Matrix4x4 worldToMaskMatrix = Matrix4x4.TRS(
worldPoints[0],
instance.Rotation,
instance.Scale).inverse;
GLivePreviewDrawer.DrawVisibilityLivePreview(t, cam, rt, dirtyRect, instance.Stamp, worldToMaskMatrix);
}
}
public void Editor_DrawLivePreview(GStylizedTerrain terrain, GTexturePainterArgs args, Camera cam)
{
#if UNITY_EDITOR
Vector2[] uvCorners = new Vector2[args.WorldPointCorners.Length];
for (int i = 0; i < uvCorners.Length; ++i)
{
uvCorners[i] = terrain.WorldPointToUV(args.WorldPointCorners[i]);
}
Rect dirtyRect = GUtilities.GetRectContainsPoints(uvCorners);
if (!dirtyRect.Overlaps(new Rect(0, 0, 1, 1)))
{
return;
}
Texture2D bg = terrain.TerrainData.Geometry.HeightMap;
int heightMapResolution = terrain.TerrainData.Geometry.HeightMapResolution;
RenderTexture rt = GTerrainTexturePainter.Internal_GetRenderTexture(terrain, heightMapResolution);
GCommon.CopyToRT(bg, rt);
Material mat = GInternalMaterials.VisibilityPainterMaterial;
mat.SetTexture("_MainTex", bg);
mat.SetTexture("_Mask", args.BrushMask);
mat.SetFloat("_Opacity", Mathf.Pow(args.Opacity, GTerrainTexturePainter.GEOMETRY_OPACITY_EXPONENT));
if (args.EnableTerrainMask)
{
mat.SetTexture("_TerrainMask", terrain.TerrainData.Mask.MaskMap);
}
else
{
mat.SetTexture("_TerrainMask", Texture2D.blackTexture);
}
int pass =
args.ActionType == GPainterActionType.Normal ? 0 :
args.ActionType == GPainterActionType.Negative ? 1 : 0;
GCommon.DrawQuad(rt, uvCorners, mat, pass);
Matrix4x4 worldToMaskMatrix = Matrix4x4.TRS(
args.WorldPointCorners[0],
Quaternion.Euler(0, args.Rotation, 0),
args.Radius * 2 * Vector3.one).inverse;
GLivePreviewDrawer.DrawVisibilityLivePreview(terrain, cam, rt, dirtyRect, args.BrushMask, worldToMaskMatrix);
#endif
}