/// <summary>
/// 加载图像数据到纹理对象
/// </summary>
///
/// <param name="texture">纹理对象，必须开启可读属性（isReadable=true）</param>
///
/// <exception cref="ArgumentException">纹理对象的格式与图像数据格式不匹配</exception>
/// <author>Nianchen Deng</author>
public void LoadDataTo(Texture2D texture)
{
if (format.GetTextureFormat() != texture.format)
{
throw new ArgumentException(
"Texture's format does not match with CImage's format", nameof(texture));
}
texture.LoadRawTextureData(data,
format.GetSizePerPixel() * size.Area());
texture.Apply();
}
public void GenerateMesh(Vector2Int gridSize, Vector3[] vertices = null,
Vector2[] uvs = null, Color[] colors = null, Vector2 quadSize = default,
bool dynamicMesh = false)
{
if (gridSize.x <= 1 || gridSize.y <= 1)
{
throw new ArgumentException("Grid size must be larger than 1", nameof(gridSize));
}
var mesh = new UnityEngine.Mesh();
if (dynamicMesh)
{
mesh.MarkDynamic();
}
// 使用指定的顶点数组或生成默认顶点数组（大小为quadSize的矩形网格）
if (vertices != null)
{
mesh.vertices = vertices;
}
else
{
// 若未指定quadSize，则默认为单位正方形
if (Math.Abs(quadSize.Area()) < 1e-5f)
{
quadSize = Vector2.one;
}
vertices = new Vector3[gridSize.Area()];
for (int r = 0, i = 0; r < gridSize.y; ++r)
{
for (var c = 0; c < gridSize.x; ++c, ++i)
{
vertices[i] = new Vector3(quadSize.x * c / (gridSize.x - 1),
quadSize.y * r / (gridSize.y - 1), 0.0f);
}
}
mesh.vertices = vertices;
}
// 使用指定的UV数组或生成默认UV数组（均匀坐标）
if (uvs != null)
{
mesh.uv = uvs;
}
else
{
uvs = new Vector2[gridSize.Area()];
for (int r = 0, i = 0; r < gridSize.y; ++r)
{
for (var c = 0; c < gridSize.x; ++c, ++i)
{
uvs[i] = new Vector2((float)c / (gridSize.x - 1),
(float)r / (gridSize.y - 1));
}
}
mesh.uv = uvs;
}
// 使用指定的颜色数组或生成默认颜色数组（白色）
if (colors != null)
{
mesh.colors = colors;
}
else
{
colors = new Color[gridSize.Area()];
for (var i = 0; i < colors.Length; ++i)
{
colors[i] = Color.white;
}
mesh.colors = colors;
}
mesh.triangles = _GenerateTriangleList(gridSize).ToArray();
mesh.SetTriangles(_GenerateTriangleList(gridSize), 0);
mesh.RecalculateNormals();
mesh.RecalculateTangents();
mesh.UploadMeshData(!dynamicMesh);
MeshObject = mesh;
_dynamicMesh = dynamicMesh;
}
protected GridPattern(IntPtr ptr, Vector2Int patternSize) :
base(ptr, patternSize.Area()) =>
this.patternSize = patternSize;
