//一张RT图片对应一个摄像机，然后可以对应多个RawImage，所以销毁的时候由摄像机和RT对应
public static RTInfo CreateRTTexture(int w, int h, int depth, RenderTextureFormat rtf)
{
RTInfo info = null;
int count = m_RTInfos.Count;
for (int i = 0; i < count; ++i)
{
info = m_RTInfos[i];
if (!info.m_bIsInUse)
{
if (info.m_RenderTexture.width == w &&
info.m_RenderTexture.height == h &&
info.m_RenderTexture.depth == depth &&
info.m_RenderTexture.format == rtf)
{
info.m_bIsInUse = true;
return(info);
}
}
}
info = new RTInfo();
info.m_bIsInUse = false;
info.m_RenderTexture = new RenderTexture(w, h, depth, rtf);
info.m_Position = m_CurrentPosition + new Vector3(w, w, w);
m_RTInfos.Add(info);
return(info);
}
public static void DestroyRTTexure(RenderTexture rt)
{
RTInfo info = null;
int count = m_RTInfos.Count;
for (int i = 0; i < count; ++i)
{
info = m_RTInfos[i];
if (!info.m_bIsInUse)
{
if (info.m_RenderTexture.width == rt.width &&
info.m_RenderTexture.height == rt.height &&
info.m_RenderTexture.depth == rt.depth &&
info.m_RenderTexture.format == rt.format)
{
info.m_bIsInUse = false;
}
}
}
}