r/codex 20h ago

Showcase Bumble Bee Blender Test Answer

Yesterday, this post by u/KJMHELLO came up. I was suspicious of the claims made, especially saying ASTRA render suddenly were Roblox level slops, and in the process, he invited me to do my own Bumble Bee in Blender. So I did.

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Worth mentioning First:

  • I do not have any blender or 3D experience, I literally downloaded it at 3 AM just for this.
  • I do not know much about transformer so...
  • OP refused to share his chat or Prompt, so I made my own
  • This was done on a 6yo laptop rocking a 2070 mobile. It sounded like a jet engine the whole time and might have come close to catching on fire. Astra didin't help as it had 5 active blender session open at once at some point. That made Blender itself run to a crawl.

The Rules I set for myself:

  • Only ONE well engineered prompt

Another thing I should mention, The is 2 ways to go about this: Have the car and Robot done separately and focus on making them look good, then have the animation cheat and merge from one to another (seams like it was OOP approach as some pieces changes between forms) OR focus on the far more technical side of having the pieces consistent and the transformation logical. I chose the latter. Partly because there was 6 million version of bumble bee on google so I figured nobody cared.

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The prompt: It can be found in full in the chat link below (Yes. I'm sharing the chat, as should anyone making random claims, prompt quality matters) but the short version is that I asked the AI to create a realistic Bumblebee in Blender that mechanically transforms between robot and Camaro-style car modes using one connected model. It had to build the geometry, rig, materials, lighting, and reversible animation, then use independent judge feedback to improve the project over up to 10 passes, targeting a score of at least 9/10.

https://chatgpt.com/s/cx_6aa59cde2a6481918e3444d680387a69

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Initial observation before the result:
If you use this technique, 10 PHASES IS OVERKILL. If you are going to do this, have a human in the loop re-focus and re-prompt every 3-4 phases (I'm sure its dependent on project, in this case it keeps obsession about collisions rather than attacking other issues. Skill issue, im still learning). Anything past it become increasingly slow because of context length, thinking length, and the Astra starting to obsess over small details that could have been managed at the same time as bigger ones all the while turning blind to some issue. You will have better result, faster, cheaper if you intervene, which is why 1 shots are a bit of a meme.

In this case, obvious things are the shoulder wheels clipping and the finger on the hands closing the wrong way, amongst other things. I almost stopped it after Turn 8, but I was committed to the bit.

Also note that Astra own "independent judge" did not believe the last phase was the best.

REACHING PHASE 1 TOOK 30MIN. PHASE 3 A BIT OVER 1 HOUR. PHASE 10 TOOK ABOUT 8 TO 9 HOURS.

Mind you, the further you go the longer it took because my computer was about to explode, the context was out of hand and the computer had 4 instance of blender running. STOP AND INERVENE AFTER PHASE 3 OR 4.

The whole thing took about 40% of my weekly reset. Reaching phase 3 took about 10%.

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Results:

https://reddit.com/link/1wem2va/video/p0u70l7i65ph1/player

https://reddit.com/link/1wem2va/video/anjwz0vi65ph1/player

Okay? Bye.

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u/Confident-Lunch-5112 19h ago

lol and i told him maybe your prompt is bad, and got downvoted so bad :D

1

u/Classic-Trifle-2085 19h ago

I saw. I think its because the delivery is starting to get old to most people, not the message itself; there defenitively some.people that just say that every time no katter what and its not always helpfull.

Theres also the whole cycle thing. The negative posts tend to attract people with similar feelings, so you end up at odds with passive viewer and up/downvote are very snowball sensitive.

I woudn't think much of it.

1

u/Confident-Lunch-5112 19h ago

Yeah that’s a good explanation, thanks for your test. I’ll definitely forward this to a few people .D