// Draw the property inside the given rect
public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
GUILayout.BeginHorizontal();
GUILayout.Label(label);
RawFileData data = null;
if (property.objectReferenceValue is RawFileData)
{
data = property.objectReferenceValue as RawFileData;
}
if (data != null && data.previewTexture != null)
{
GUILayout.Box(data.previewTexture, GUILayout.Width(64), GUILayout.Height(64));
}
GUILayout.BeginVertical();
if (GUILayout.Button("Import..."))
{
string text = EditorUtility.OpenFilePanel("Import Raw Heightmap", string.Empty, "raw");
if (text != string.Empty)
{
ImportRawHeightmap importRawHeightmap = TerrainWizard.DisplayTerrainWizard <ImportRawHeightmap>("Import Heightmap", "Import");
importRawHeightmap.InitializeImportRaw(text, (float[,] values) => { UpdateTexture(data, values); });
}
}
if (data != null && data.previewTexture != null)
{
if (GUILayout.Button("Clear"))
{
Clear(data);
}
}
GUILayout.EndVertical();
GUILayout.EndHorizontal();
}
private void UpdateTexture(RawFileData data, float[,] values)
{
Undo.RecordObject(data, "select raw file");
int w = values.GetLength(0);
int h = values.GetLength(1);
Texture2D tex = new Texture2D(64, 64);
Color[] colors = new Color[tex.width * tex.height];
for (int i = 0; i < tex.width; i++)
{
for (int j = 0; j < tex.height; j++)
{
float value = values[i * w / tex.width, j *h / tex.height];
Color color = new Color();
color.a = 1;
color.r = color.g = color.b = value;
colors[j * tex.width + i] = color;
}
}
tex.SetPixels(colors);
tex.Apply();
data.previewTexture = tex;
data.width = w;
data.height = h;
data.values = new float[w * h];
for (int i = 0; i < data.width; i++)
{
for (int j = 0; j < data.height; j++)
{
data.values[j * data.width + i] = values[i, j];
}
}
}
private void Clear(RawFileData data)
{
Undo.RecordObject(data, "clear raw data");
data.width = 0;
data.height = 0;
data.previewTexture = null;
data.values = null;
}
public override void Init()
{
rawFile = new RawFileData();
}