previous frames viewprojectionmatrix

Is there an already unity defined matrix for some camera matrices such as viewprojectionmatrix…etc or do we have to calculate it ourselves in a script?

I mean for the previous frame, i think these are already defined in opengl itself like g_previousViewProjectionMatrix. Although im not sure and i have no idea about it.

OpenGL doesn’t specify any matrix for the previous frame as far as i know.

Thus, I assume you have to obtain them in a script from the camera and game object.