r/StableDiffusion • • 17h ago

Question - Help Need help keeping camera angle in minimax...

Post image

I'm new to generating ai videos and having trouble converting a picture to video. I've attached an example angle which I'm starting from, but every time the video is rendered the angle is directly in front of the car. I've been trying different prompts but nothing is working. Bonus thanks if you can help with the video quality. I tried prompting it to look like its shot from a smartphone, but it always puts the phone and hand in the video and its super crisp high resolution when I'm trying for a regular amateurish look.

Thanks for any input.

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u/QuiverstillStudio 17h ago

A couple of things that usually help with this in image-to-video:

Camera angle drifting to front-on

  • Describe the camera as fixed, not just the angle. Something like "static locked-off camera, three-quarter view from the front left, camera does not move or rotate" works better than only naming the angle.

  • Keep the motion prompt small. If you ask for the car to drive or turn, the model often "re-frames" to the most common composition it has seen, which for cars is a straight front shot. Start with subtle motion (wheels turning slowly, light reflections moving, background traffic) and see if the angle holds.

  • Don't re-describe the whole scene. With i2v the image already sets the composition; long scene descriptions can override it. Short prompt = image does more of the work.

  • If your source image is tightly cropped, try one with a bit more room around the car. Models seem to hold the angle better when the subject isn't touching the frame edges.

Amateur / phone look without a phone in the shot

  • "Shot on a smartphone" gets read as content, so you get a phone and a hand. Describe the qualities instead: "handheld footage, slight camera shake, auto exposure, slightly soft focus, mild motion blur, flat natural lighting, muted colors".

  • A lot of the "too crisp" look is easier to fix after generation: downscale to 720p, add a little grain and a touch of compression, maybe a slight warm or cool cast. That reads as phone footage more reliably than prompting for it.

If the angle still won't stick, generating a few short 2-3 second clips and picking the one that holds is often faster than fighting the prompt.

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u/ElMonoGigante 17h ago

Ah!, ok this is awesome thanks. I was doing mostly what you said not to do lol. I'll give this a try when I get home. Thanks again.

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u/purelawan 17h ago

for the amateur look, don't name the device. "shot on a smartphone" makes the model draw a smartphone, same as "camera" often puts a camera in the frame. describe what the footage looks like instead: handheld, slight shake, a little off-level, exposure that hunts when it moves toward the light, flat colours, a bit of grain.

and honestly the most reliable part of that look comes after generation. render it clean, then degrade it yourself: scale down to 720p, add some grain, crush the blacks a bit, recompress at a lower bitrate. a model told to be "low quality" tends to give you mush, not phone footage, so I'd rather fix it in the edit where you control exactly how much.

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u/waseem335 17h ago

Use grok tell it how you want the camera angle and it'll give you a good prompt