val scaledMousePos = mousePos * GuiUtils.scaledResolution.getScaleFactor
val eyeZInverse = 1F / eyeZ
ZBuffer.rewind()
GL11.glReadPixels(scaledMousePos.x, mc.displayHeight - scaledMousePos.y, 1, 1, GL11.GL_DEPTH_COMPONENT, GL11.GL_FLOAT, ZBuffer)
val mouseZ = ZBuffer.get()
val m33 = -(1 - zFar / eyeZInverse) / (zNear - zFar)
val viewZ = (mouseZ + m33 * zNear) / (mouseZ * eyeZInverse + m33)
val hWidth = viewport.width / 2 * GuiUtils.scaledResolution.getScaleFactor
val hHeight = viewport.width / 2 * GuiUtils.scaledResolution.getScaleFactor
val pixelToViewRatio = hWidth * 2 / mc.displayWidth

val viewX = scaledMousePos.x * pixelToViewRatio - hWidth
val viewY = -(scaledMousePos.y * pixelToViewRatio - hHeight)

val viewXProjected = viewX - viewX * viewZ * eyeZInverse
val viewYProjected = viewY - viewX * viewZ * eyeZInverse

Vector3(viewXProjected, viewYProjected, viewZ)