That's the setting:

I have 2 cameras in the game scene. The game must be played in a room with screens on frontal wall and on the floor. To be able to test it I just recreated the 2 screens in Unity. The goal is to make the game immersive, creating the correct illusion as the image on the left. What I've tried so far (and it kinda worked as you can see from the screenshot) is:

Camera0: goes directly in the frontal display.

Camera1: I created a post processing effect that deforms the output texture to create the correct perspective illusion.

The problem:

The fact that I'm basically working over a texture creates some blurry effect on the borders, because the pixel density is not the same in start and deformed image.

I think the best approach would be to make the deforming transformation happen on the projection matrix of Camera1 instead. But I just failed. Have you any idea on how to approach this problem correctly?

CodePudding user response：

You can let your perspective cameras do the work for you.

Set the fov of the floor camera so that it shows only as much as will fit on the screen.

Then, have the cameras at the same position.

Finally, have the floor camera rotated on the x axis by half of the sum the fov of both cameras. For example, if the wall camera is fov 80º and the floor fov is 40º, set the floor camera to be rotated by 60º along the x axis.

This will guarantee that the view of the cameras do not overlap, and they will have the correct projection along their surfaces to create the desired illusion.