/// <summary>
/// Does the GUI for this graph.
/// Returns what changed.
/// </summary>
public ChangeTypes DoGUILayout(string label, List <string> graphPaths, GUIContent[] graphOptions)
{
var changes = ChangeTypes.None;
GUILayout.BeginHorizontal();
GUILayout.Label(label);
int oldIndex = Index;
Index = EditorGUILayout.Popup(oldIndex, graphOptions);
if (oldIndex != Index)
{
Graph g = new Graph(graphPaths[Index]);
if (g.Load().Length > 0)
{
Index = oldIndex;
}
else
{
Params = new GraphParamCollection(g);
changes = ChangeTypes.Everything;
}
}
GUILayout.EndHorizontal();
GUILayout_TabIn(25.0f);
if (Params != null && Params.ParamEditorGUI() && changes != ChangeTypes.Everything)
{
changes = ChangeTypes.Params;
}
GUILayout_TabOut(25.0f);
return(changes);
}
void OnGUI()
{
GUILayout.Space(10.0f);
X = EditorGUILayout.IntField("Width", X);
Y = EditorGUILayout.IntField("Height", Y);
GUILayout.Space(15.0f);
GUILayout.Label("Gradient");
GUILayout.BeginHorizontal();
GUILayout.Space(15.0f);
GUILayout.BeginVertical();
for (int i = 0; i < GradientRamp_Colors.Count; ++i)
{
GUILayout.BeginHorizontal();
GradientRamp_Colors[i] = EditorGUILayout.ColorField(GradientRamp_Colors[i]);
if (i > 0)
{
GradientRamp_Times[i] = EditorGUILayout.Slider(GradientRamp_Times[i],
0.0f, 1.0f);
}
if (i > 0 && GUILayout.Button("+"))
{
GradientRamp_Colors.Insert(i, GradientRamp_Colors[i]);
GradientRamp_Times.Insert(i, GradientRamp_Times[i] - 0.00000001f);
}
if (i > 0 && GradientRamp_Colors.Count > 2 && GUILayout.Button("-"))
{
GradientRamp_Colors.RemoveAt(i);
GradientRamp_Times.RemoveAt(i);
i -= 1;
}
GUILayout.EndHorizontal();
if (i > 0 && GradientRamp_Times[i] < GradientRamp_Times[i - 1])
{
GradientRamp_Times[i] = GradientRamp_Times[i - 1] + 0.000001f;
}
else if (i < GradientRamp_Colors.Count - 1 &&
GradientRamp_Times[i] > GradientRamp_Times[i + 1])
{
GradientRamp_Times[i] = GradientRamp_Times[i + 1] - 0.00001f;
}
}
GUILayout.EndVertical();
GUILayout.EndHorizontal();
GUILayout.Space(15.0f);
GUILayout.BeginHorizontal();
GUILayout.Label("Graph:");
int oldIndex = SelectedGraphIndex;
SelectedGraphIndex = EditorGUILayout.Popup(SelectedGraphIndex, graphNameOptions);
if (oldIndex != SelectedGraphIndex)
{
Graph g = new Graph(graphPaths[SelectedGraphIndex]);
if (g.Load().Length == 0)
{
SelectedGraphIndex = oldIndex;
}
else
{
gParams = new GraphParamCollection(g);
}
}
GUILayout.EndHorizontal();
GUILayout.Space(10.0f);
//Show some GUI elements for changing the parameters.
if (graphPaths.Count > 0)
{
gParams.ParamEditorGUI();
}
GUILayout.Space(10.0f);
//If a graph is selected, display a button to generate the texture.
if (graphPaths.Count > 0)
{
if (GUILayout.Button("Generate Texture"))
{
string savePath = EditorUtility.SaveFilePanel("Choose where to save the texture.",
Application.dataPath, "MyTex.png", "png");
if (savePath.Length > 0)
{
//Load the graph.
Graph g = new Graph(graphPaths[SelectedGraphIndex]);
if (g.Load().Length > 0)
{
return;
}
//Render the gradient ramp to a texture,
// then render the graph's noise to a texture.
Gradient grd = new Gradient();
grd.SetKeys(GradientRamp_Colors.Select((c, i) =>
new GradientColorKey(c, GradientRamp_Times[i])).ToArray(),
new GradientAlphaKey[] { new GradientAlphaKey(1.0f, 0.0f) });
Texture2D tex = GraphEditorUtils.GenerateToTexture(g, new GraphParamCollection(g, gParams),
X, Y, grd);
if (tex == null)
{
return;
}
//Write out the texture as a PNG.
try
{
File.WriteAllBytes(savePath, tex.EncodeToPNG());
}
catch (Exception e)
{
Debug.LogError("Unable to save texture to file: " + e.Message);
}
//Now that we're finished, clean up.
AssetDatabase.ImportAsset(StringUtils.GetRelativePath(savePath, "Assets"));
//Finally, open explorer to show the user the texture.
if (Application.platform == RuntimePlatform.WindowsEditor)
{
System.Diagnostics.Process.Start("explorer.exe",
"/select," +
StringUtils.FixDirectorySeparators(savePath));
}
else if (Application.platform == RuntimePlatform.OSXEditor)
{
try
{
System.Diagnostics.Process proc = new System.Diagnostics.Process();
proc.StartInfo.FileName = "open";
proc.StartInfo.Arguments = "-n -R \"" +
StringUtils.FixDirectorySeparators(savePath) +
"\"";
proc.StartInfo.UseShellExecute = false;
proc.StartInfo.RedirectStandardError = false;
proc.StartInfo.RedirectStandardOutput = false;
proc.ErrorDataReceived += (s, a) => Debug.Log(a.Data);
if (proc.Start())
{
proc.BeginErrorReadLine();
proc.BeginOutputReadLine();
}
else
{
Debug.LogError("Error opening Finder to show texture file");
}
}
catch (Exception e)
{
Debug.LogError("Error opening Finder to show texture file: " + e.Message);
}
}
}
}
}
else
{
GUILayout.Space(15.0f);
GUILayout.Label("No graph files detected in the project!");
}
}
private void OnGUI()
{
GUILayout.Space(15.0f);
//Choose the graph to use.
GUILayout.BeginHorizontal();
GUILayout.Label("Graph:");
int oldIndex = SelectedGraphIndex;
SelectedGraphIndex = EditorGUILayout.Popup(SelectedGraphIndex, graphNameOptions);
if (oldIndex != SelectedGraphIndex)
{
Graph g = new Graph(graphPaths[SelectedGraphIndex]);
if (g.Load().Length > 0)
{
SelectedGraphIndex = oldIndex;
}
else
{
gParams = new GraphParamCollection(g);
}
GetPreview(true);
}
GUILayout.EndHorizontal();
GUILayout.Space(10.0f);
OnGUI_BelowGraphSelection();
//Choose the color gradient.
GUILayout.Label("Gradient");
GUILayout.BeginHorizontal();
GUILayout.Space(15.0f);
GUILayout.BeginVertical();
for (int i = 0; i < GradientRamp_Colors.Count; ++i)
{
GUILayout.BeginHorizontal();
//Edit the color value.
EditorGUI.BeginChangeCheck();
GradientRamp_Colors[i] = EditorGUILayout.ColorField(GradientRamp_Colors[i]);
if (i > 0)
{
GradientRamp_Times[i] = EditorGUILayout.Slider(GradientRamp_Times[i],
0.0f, 1.0f);
}
if (EditorGUI.EndChangeCheck())
{
GetPreview(true);
}
//Button to insert a new element.
if (i > 0 && GUILayout.Button("+"))
{
GradientRamp_Colors.Insert(i, GradientRamp_Colors[i]);
GradientRamp_Times.Insert(i, GradientRamp_Times[i] - 0.00000001f);
GetPreview(true);
}
//Button to remove this element.
if (i > 0 && GradientRamp_Colors.Count > 2 && GUILayout.Button("-"))
{
GradientRamp_Colors.RemoveAt(i);
GradientRamp_Times.RemoveAt(i);
i -= 1;
GetPreview(true);
}
GUILayout.EndHorizontal();
//Make sure elements are in order.
if (i > 0 && GradientRamp_Times[i] < GradientRamp_Times[i - 1])
{
GradientRamp_Times[i] = GradientRamp_Times[i - 1] + 0.000001f;
GetPreview(true);
}
else if (i < GradientRamp_Colors.Count - 1 &&
GradientRamp_Times[i] > GradientRamp_Times[i + 1])
{
GradientRamp_Times[i] = GradientRamp_Times[i + 1] - 0.00001f;
GetPreview(true);
}
}
GUILayout.EndVertical();
GUILayout.EndHorizontal();
GUILayout.Space(15.0f);
OnGUI_BelowGradientAboveParams();
//Edit the graph's parameters.
GUILayout.Label("Graph Parameters:");
GUILayout.BeginHorizontal();
GUILayout.FlexibleSpace();
GUILayout.BeginVertical();
{
if (graphPaths.Count > 0 && gParams.ParamEditorGUI())
{
GetPreview(false);
}
}
GUILayout.EndVertical();
GUILayout.FlexibleSpace();
GUILayout.EndHorizontal();
GUILayout.Space(10.0f);
OnGUI_AboveGenerationButton();
//Show the preview texture.
if (previewTex != null)
{
//Preview scale slider.
GUILayout.BeginHorizontal();
{
GUILayout.Label("Preview Scale");
//Use a nonlinear scale for the slider.
float t = Mathf.Log10(previewScale);
float resultT = GUILayout.HorizontalSlider(t, -2.0f, 2.0f,
GUILayout.Width(position.width - 40.0f));
previewScale = Mathf.Pow(10.0f, resultT);
}
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
{
//Slider for preview UV z.
GUILayout.BeginVertical();
{
float oldZ = previewUVz;
GUILayout.Label("Z");
previewUVzMax = EditorGUILayout.FloatField(previewUVzMax, GUILayout.Width(20.0f));
previewUVz = GUILayout.VerticalSlider(previewUVz, previewUVzMin, previewUVzMax,
GUILayout.Height(previewTex.height * previewScale - (15.0f * 3)));
previewUVzMin = EditorGUILayout.FloatField(previewUVzMin, GUILayout.Width(20.0f));
if (oldZ != previewUVz)
{
GetPreview(false);
}
}
GUILayout.EndVertical();
Rect texPos = EditorGUILayout.GetControlRect(GUILayout.Width(previewTex.width * previewScale),
GUILayout.Height(previewTex.height * previewScale));
EditorGUI.DrawPreviewTexture(texPos, previewTex);
GUILayout.FlexibleSpace();
}
GUILayout.EndHorizontal();
}
//If a graph is selected, display a button to generate the texture.
if (graphPaths.Count > 0)
{
if (GUILayout.Button("Generate Texture"))
{
GenerateTexture();
}
}
else
{
GUILayout.Space(15.0f);
GUILayout.Label("No graph files detected in the project!");
}
}
void OnGUI()
{
GUILayout.Space(10.0f);
if (Selection.activeGameObject == null ||
Selection.activeGameObject.GetComponent <Terrain>() == null)
{
EditorGUILayout.LabelField("No terrain is selected in the editor.");
}
else
{
//Graph selection.
GUILayout.BeginHorizontal();
GUILayout.Label("Graph:");
int oldIndex = selectedGraphIndex;
selectedGraphIndex = EditorGUILayout.Popup(selectedGraphIndex, graphNameOptions);
if (oldIndex != selectedGraphIndex)
{
Graph g = new Graph(graphPaths[selectedGraphIndex]);
if (g.Load().Length == 0)
{
selectedGraphIndex = oldIndex;
}
else
{
gParams = new GraphParamCollection(g);
}
}
GUILayout.EndHorizontal();
GUILayout.Space(15.0f);
//Graph params.
if (graphPaths.Count > 0)
{
gParams.ParamEditorGUI();
}
GUILayout.Space(15.0f);
//Other params.
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Height scale:");
heightScale = EditorGUILayout.FloatField(heightScale);
EditorGUILayout.EndHorizontal();
GUILayout.Space(15.0f);
//Button to generate heightmap.
if (graphPaths.Count > 0)
{
if (GUILayout.Button("Generate Heightmap"))
{
Generate();
}
}
else
{
GUILayout.Space(15.0f);
GUILayout.Label("No graph files detected in the project!");
}
}
}
void OnGUI()
{
GUILayout.Space(10.0f);
scrollPos = GUILayout.BeginScrollView(scrollPos);
if (Selection.activeGameObject == null ||
Selection.activeGameObject.GetComponent <Terrain>() == null)
{
EditorGUILayout.LabelField("No terrain is selected in the editor.");
}
else
{
//Graph selection.
GUILayout.BeginHorizontal();
GUILayout.Label("Graph:");
int oldIndex = selectedGraphIndex;
selectedGraphIndex = EditorGUILayout.Popup(selectedGraphIndex, graphNameOptions);
if (oldIndex != selectedGraphIndex)
{
var newGraph = new Graph(graphPaths[selectedGraphIndex]);
var errMsg = newGraph.Load();
if (errMsg.Length > 0)
{
Debug.LogError(errMsg);
selectedGraphIndex = oldIndex;
}
else
{
gParams = new GraphParamCollection(newGraph);
graph = newGraph;
}
}
GUILayout.EndHorizontal();
GUILayout.Space(15.0f);
//Graph params.
if (graphPaths.Count > 0)
{
gParams.ParamEditorGUI();
}
GUILayout.Space(15.0f);
//Other params.
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Height scale:");
heightScale = EditorGUILayout.FloatField(heightScale);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
uvz = EditorGUILayout.Slider("UV.z", uvz, 0, 1);
EditorGUILayout.EndHorizontal();
GUILayout.Space(15.0f);
//Button to generate heightmap.
if (graphPaths.Count > 0)
{
if (GUILayout.Button("Generate Heightmap"))
{
Generate();
}
}
else
{
GUILayout.Space(15.0f);
GUILayout.Label("No graph files detected in the project!");
}
//Preview texture.
if (GUILayout.Button("Update Preview"))
{
GeneratePreview();
}
if (previewTex != null)
{
GUILayout.Box(previewTex, GUILayout.Width(256), GUILayout.Height(256));
}
}
GUILayout.EndScrollView();
}