koobas.hobune.stream
Weapon scope implemented using stencil portal, occlusion?
Hi!
I am trying to implement a scope by using the stencil buffer. Everything looks good (interior of scope only rendered when looking through stencil plane, unwanted weapon geometry hidden when looking through stencil plane.
The problem is when the stencil plane is occluded by other parts of the weapon, since the stencil plane (by necessity?) is rendered first the pixels that occlude the stencil plane is not rendered.
Here is an image of the scope working correctly.
Here is an image of the problem.
There are three different shaders involved:
StencilPlane:
SubShader {
Tags { "Queue" = "Background" }
ZWrite Off
ColorMask 0
Pass {
Stencil {
Ref 1
Comp always
Pass replace
}
}
}
VisibleThroughLens:
Stencil {
Ref 1
Comp Equal
}
HiddenThroughLens:
Stencil{
Ref 1
Comp NotEqual
}
Can something be done to prevent this, or is the stencil buffer not the correct tool for the job? Is there some other way to selectively hide objects viewed through a plane?
