112 lines
3.5 KiB
C#
112 lines
3.5 KiB
C#
#if GRIFFIN
|
|
using System.IO;
|
|
using UnityEditor;
|
|
using UnityEngine;
|
|
|
|
namespace Pinwheel.Griffin
|
|
{
|
|
public class GUvLayoutExporterWindow : EditorWindow
|
|
{
|
|
private Mesh targetMesh;
|
|
private int resolution;
|
|
|
|
static Material lineMaterial;
|
|
|
|
//[MenuItem("Window/Griffin/Internal/UV Layout Exporter")]
|
|
public static void ShowWindow()
|
|
{
|
|
GUvLayoutExporterWindow window = GetWindow<GUvLayoutExporterWindow>();
|
|
window.titleContent = new GUIContent("GUvLayoutExporter");
|
|
window.Show();
|
|
}
|
|
|
|
public void OnEnable()
|
|
{
|
|
}
|
|
|
|
public void OnDisable()
|
|
{
|
|
}
|
|
|
|
public void OnGUI()
|
|
{
|
|
targetMesh = EditorGUILayout.ObjectField("Mesh", targetMesh, typeof(Mesh), false) as Mesh;
|
|
resolution = EditorGUILayout.IntField("Resolution", resolution);
|
|
if (GUILayout.Button("Export"))
|
|
{
|
|
Export();
|
|
}
|
|
}
|
|
|
|
private void Export()
|
|
{
|
|
RenderTexture rt = new RenderTexture(resolution, resolution, 24, RenderTextureFormat.ARGB32);
|
|
GCommon.FillTexture(rt, Color.clear);
|
|
|
|
Vector2[] uv = targetMesh.uv;
|
|
int[] tris = targetMesh.triangles;
|
|
int trisCount = tris.Length / 3;
|
|
|
|
CreateLineMaterial();
|
|
// Apply the line material
|
|
lineMaterial.SetPass(0);
|
|
|
|
RenderTexture.active = rt;
|
|
GL.PushMatrix();
|
|
GL.LoadOrtho();
|
|
// Draw lines
|
|
GL.Begin(GL.LINES);
|
|
for (int i = 0; i < trisCount; ++i)
|
|
{
|
|
GL.Color(Color.black);
|
|
Vector2 p0 = uv[tris[i * 3 + 0]];
|
|
Vector2 p1 = uv[tris[i * 3 + 1]];
|
|
Vector2 p2 = uv[tris[i * 3 + 2]];
|
|
|
|
GL.Vertex3(p0.x, p0.y, 0);
|
|
GL.Vertex3(p1.x, p1.y, 0);
|
|
|
|
GL.Vertex3(p1.x, p1.y, 0);
|
|
GL.Vertex3(p2.x, p2.y, 0);
|
|
|
|
GL.Vertex3(p2.x, p2.y, 0);
|
|
GL.Vertex3(p0.x, p0.y, 0);
|
|
}
|
|
GL.End();
|
|
GL.PopMatrix();
|
|
|
|
Texture2D tex = new Texture2D(resolution, resolution, TextureFormat.ARGB32, false);
|
|
tex.ReadPixels(new Rect(0, 0, resolution, resolution), 0, 0);
|
|
tex.Apply();
|
|
|
|
byte[] data = tex.EncodeToPNG();
|
|
File.WriteAllBytes(string.Format("Assets/{0}_UV_{1}.png", targetMesh.name, resolution), data);
|
|
GUtilities.DestroyObject(tex);
|
|
|
|
RenderTexture.active = null;
|
|
rt.Release();
|
|
GUtilities.DestroyObject(rt);
|
|
}
|
|
|
|
static void CreateLineMaterial()
|
|
{
|
|
if (!lineMaterial)
|
|
{
|
|
// Unity has a built-in shader that is useful for drawing
|
|
// simple colored things.
|
|
Shader shader = Shader.Find("Hidden/Internal-Colored");
|
|
lineMaterial = new Material(shader);
|
|
lineMaterial.hideFlags = HideFlags.HideAndDontSave;
|
|
// Turn on alpha blending
|
|
lineMaterial.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);
|
|
lineMaterial.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
|
|
// Turn backface culling off
|
|
lineMaterial.SetInt("_Cull", (int)UnityEngine.Rendering.CullMode.Off);
|
|
// Turn off depth writes
|
|
lineMaterial.SetInt("_ZWrite", 0);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|