I figured I could make a "holographic projection", a 50% reflective and 50% see-through screen at 45% angle between your point of view and a display.
I used the camera gui as a display, and reflective water as the screen, and it works : )
I made a black box (bc black) to put the model, light and camera (target_null) inside.
This is a small setup, but big setups would work also I guess, for having ghostly figures floating around and stuff. Themeparks and magicians use this trick also : )
https://streamable.com/44b3v
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Why not just have a transparent nonsolid camera gui?
camerascreentransparent1
{
qer_editorimage textures/editor/cameragui.tga
nonsolid
translucent
noshadows
{
remoteRenderMap 232 232 // width / height of render image, ie resolution of screen
red Parm0
green Parm1
blue Parm2
scale -1, -1
translate -1, -1
map "camerascreentransparent1"
blend gl_dst_alpha, gl_one
}
}
It also works : )