/// <summary>
/// 绘制Mesh
/// </summary>
/// <param name="rect"></param>
/// <param name="uvID">UVID</param>
private static void DrawMesh(Rect rect, Vector4 offsetScale, GameObject gameObject, int uvID, bool lightMapLayoutMode, int lightMapIndex, int pass)
{
Mesh mesh = GetMesh(gameObject);
if (!mesh)
{
return;
}
Renderer renderer = gameObject.GetComponent <Renderer>();
if (!renderer)
{
return;
}
Matrix4x4 matrix = default(Matrix4x4);
//计算并设置裁剪矩阵
UVMaterial.SetMatrix("clipMatrix", GetGUIClipMatrix(rect));
//UVMaterial.SetPass(pass);
//matrix = GetDrawMatrix(rect, offsetScale);
//Graphics.DrawMeshNow(mesh, matrix);
//非光照贴图布局模式下直接计算绘制矩阵
if (!lightMapLayoutMode)
{
matrix = GetDrawMatrix(rect, offsetScale);
}
UVMaterial.SetPass(pass);
if (lightMapLayoutMode)
{
//光照贴图布局模式下需要根据每个Renderer的LightMapScaleOffset来计算绘制矩阵
if (renderer.lightmapIndex != lightMapIndex)
{
return;
}
Vector4 lmST = renderer.lightmapScaleOffset;
matrix =
GetDrawMatrix(rect, offsetScale, lmST.z, lmST.w, lmST.x, lmST.y);
if (CheckUV(mesh, 1))
{
UVMaterial.SetFloat("_UVIndex", 1.5f);
}
else
{
if (CheckUV(mesh, 0))
{
UVMaterial.SetFloat("_UVIndex", 0.5f);
}
else
{
return;
}
}
}
else
{
if (!CheckUV(mesh, uvID))
{
return;
}
UVMaterial.SetFloat("_UVIndex", 0.5f + uvID);
}
if (mesh)
{
Graphics.DrawMeshNow(mesh, matrix);
}
}
private static void DrawUVMesh(Rect rect, Vector4 offsetScale, GameObject gameObject, int uvID, bool lightMapLayoutMode, int lightMapIndex, Color color)
{
UVMaterial.SetColor("_Color", color);
DrawMesh(rect, offsetScale, gameObject, uvID, lightMapLayoutMode, lightMapIndex, 0);
}