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SceneCapture Projection Matrix for Portal

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    SceneCapture Projection Matrix for Portal

    Hi,

    I am new to Unreal and GameDev in general, but I was playing around and trying to make portals for fun. I noticed that when objects were placed in front of the portal, they can get in the way of the projection captured by the SceneCaptureComponent.

    Here is the problem:

    An extra cube is placed in front of Portal2

    From Portal1, this cube is seen, despite being in front of the portal:

    While trying to fix this, I came across FClipProjectionMatrix and wrote these lines of code:

    Code:
    SceneCapture->ClipPlaneNormal = GetActorForwardVector();
    SceneCapture->ClipPlaneBase = GetActorLocation();
    SceneCapture->CustomProjectionMatrix = FClipProjectionMatrix(TargetPortal->GetCameraProjectionMatrix(), FPlane(GetActorLocation()));
    (GetCameraProjectionMatrix() is from https://www.froyok.fr/blog/2019-03-c...real-engine-4/)

    After compiling, I saw this horrible monstracity:

    Technically the cube is gone, but now it looks awful. How could I fix this? I'm not really familiar with Matrices and Vectors (I'm only a HS Sophomore), but I'm trying to learn. Any help is appreciated!
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