This is a project

1. Global Light:
   • BP_sky_sphere: BP sky sphere
   • Direction_Light: Sun's light direction
   • Sky_light: Modify the outside skyline

2. Fixing the light shader:

   • Find the material element's Parent:
   • Disable the pixel Deepth Offset:

3. Using point into the mover compoment to satisy light tracing does not include static mesh compoment :

   • Pointing to show properity of owner:

4. Reference:

   • InterConstto

5. Scene Compoment:

   • Adding grabber by creating a new scene compoment, enable to catch the rotation of interactive objects

6. Line / Shape Trace

   • Creating channel to enable collision block light or not

7. UWorld()

   • UWorld contains multiplies of Ulevel() for optimzing efficency
   • reference:
   • https://dev.epicgames.com/documentation/en-us/unreal-engine/API/Runtime/Engine/Engine/UWorld?application_version=4.27

8. showing the grabeer line(linedebug):

• enable to see the grabbing distance

9. geometry sweep

   • display sweeping
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10. Physics Handle

    • Enable player can grab the object
    • Make sure physichandle is not null
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11. DrawdebugSphere

    • enable to debug where did we grab
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12. WakeAllRigidBodies()

• enable to wake up the rigid bodies simulating.
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13. OutHitResult

• regrab the function
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14, Add tag

• with tag, we can identify object A can be interactived by object b
• we can create a name in trigger under the secret wall
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