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[RequireComponent(typeof(MeshFilter), typeof(MeshRenderer))] |
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public class BarycentricDataBuilder : MonoBehaviour |
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{ |
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private Mesh m_Mesh; |
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GenerateBarycentricData(); |
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void Update() |
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//void Update()
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//{
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// GenerateBarycentricData();
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//}
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void GenerateBarycentricData() |
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m_Mesh = GetComponent<MeshFilter>().mesh; |
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SplitMesh(m_Mesh); |
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Color[] colorCoords = new[] |
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{ |
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new Color(1, 0, 0), |
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new Color(0, 1, 0), |
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new Color(0, 0, 1), |
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}; |
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Color32[] vertexColors = new Color32[m_Mesh.vertexCount]; |
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//compute vertexcolors
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//for(int i = 0; i < vertexColors.Length; i++)
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//{
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// vertexColors[i] = colorCoords[(int)Mathf.Repeat(i, 3)];
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// //vertexColors[i] = Color.red;
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//}
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for (int i = 0; i < vertexColors.Length; i += 3) |
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{ |
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vertexColors[i] = colorCoords[0]; |
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vertexColors[i + 1] = colorCoords[1]; |
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vertexColors[i + 2] = colorCoords[2]; |
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} |
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//for (int i = 0; i < m_Mesh.triangles.Length; i++)
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//{
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// vertexColors[m_Mesh.triangles[i]] = colorCoords[(int)Mathf.Repeat(i, 3)];
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// //vertexColors[m_Mesh.triangles[i]] = colorCoords[0];
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// //vertexColors[m_Mesh.triangles[i + 1]] = colorCoords[1];
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// //vertexColors[m_Mesh.triangles[i + 2]] = colorCoords[2];
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//}
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//compute vertexcolors
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m_Mesh.colors32 = vertexColors; |
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//m_Mesh.RecalculateNormals();
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//m_Mesh.MarkModified();
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} |
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void SplitMesh(Mesh mesh) |
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{ |
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int[] triangles = mesh.triangles; |
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Vector3[] verts = mesh.vertices; |
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Vector3[] normals = mesh.normals; |
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Vector2[] uvs = mesh.uv; |
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Vector3[] newVerts; |
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Vector3[] newNormals; |
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Vector2[] newUvs; |
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int n = triangles.Length; |
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newVerts = new Vector3[n]; |
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newNormals = new Vector3[n]; |
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newUvs = new Vector2[n]; |
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for (int i = 0; i < n; i++) |
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{ |
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newVerts[i] = verts[triangles[i]]; |
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newNormals[i] = normals[triangles[i]]; |
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if (uvs.Length > 0) |
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{ |
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newUvs[i] = uvs[triangles[i]]; |
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} |
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triangles[i] = i; |
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} |
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mesh.vertices = newVerts; |
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mesh.normals = newNormals; |
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mesh.uv = newUvs; |
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mesh.triangles = triangles; |
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//[RequireComponent(typeof(MeshFilter), typeof(MeshRenderer))]
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//public class Grid : MonoBehaviour
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//{
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// public int xSize, ySize;
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// private Mesh mesh;
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// private Vector3[] vertices;
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// private void Awake()
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// {
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// Generate();
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// }
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// [ContextMenu("generate")]
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// private void Generate()
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// {
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// GetComponent<MeshFilter>().mesh = mesh = new Mesh();
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// mesh.name = "Procedural Grid";
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// Color[] coords = new[]
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// {
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// new Color(1, 0, 0),
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// new Color(0, 1, 0),
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// new Color(0, 0, 1),
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// };
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// vertices = new Vector3[(xSize + 1) * (ySize + 1)];
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// Vector2[] uv = new Vector2[vertices.Length];
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// Vector4[] tangents = new Vector4[vertices.Length];
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// Vector4 tangent = new Vector4(1f, 0f, 0f, -1f);
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// Color32[] vertexColors = new Color32[vertices.Length];
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// for (int i = 0, y = 0; y <= ySize; y++)
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// {
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// for (int x = 0; x <= xSize; x++, i++)
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// {
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// vertices[i] = new Vector3(x * 5, y * 5);
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// vertexColors[i] = coords[(int)Mathf.Repeat(x - y, 3)];
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// uv[i] = new Vector2((float)x / xSize, (float)y / ySize);
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// tangents[i] = tangent;
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// }
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// }
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// mesh.vertices = vertices;
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// mesh.uv = uv;
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// mesh.colors32 = vertexColors;
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// mesh.tangents = tangents;
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// int[] triangles = new int[xSize * ySize * 6];
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// for (int ti = 0, vi = 0, y = 0; y < ySize; y++, vi++)
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// {
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// for (int x = 0; x < xSize; x++, ti += 6, vi++)
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// {
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// triangles[ti] = vi;
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// triangles[ti + 3] = triangles[ti + 2] = vi + 1;
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// triangles[ti + 4] = triangles[ti + 1] = vi + xSize + 1;
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// triangles[ti + 5] = vi + xSize + 2;
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// }
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// }
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// mesh.triangles = triangles;
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// mesh.RecalculateNormals();
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// }
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//}
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Arturo Nereu
5 年前