ChainRender.java 文件源码

ICamera getFrustum(float partial) {
    // Unfortunately we have to make our own Frustum.
    final Minecraft mc = Minecraft.getMinecraft();
    final Entity eye = mc.getRenderViewEntity();
    double eyeX = eye.lastTickPosX + (eye.posX - eye.lastTickPosX) * (double)partial;
    double eyeY = eye.lastTickPosY + (eye.posY - eye.lastTickPosY) * (double)partial;
    double eyeZ = eye.lastTickPosZ + (eye.posZ - eye.lastTickPosZ) * (double)partial;

    Frustum frustum = new Frustum(); // Notch can't spell
    frustum.setPosition(eyeX, eyeY, eyeZ);
    return frustum;
}