ArchAi3D_Qwen_Person_Perspective

Camera angle on a person is a statement. Low angle reads power, high angle reads vulnerability, and ArchAi3D_Qwen_Person_Perspective is the pack's node that turns that psychology into a Qwen-Edit prompt. It's the one the README singles out with its own guide, built specifically for re-shooting people from a new camera position while keeping the person the same - the thing generic camera nodes get wrong, because Qwen will happily redesign your subject along with the angle.

The core design decision is identity_preservation, which defaults to strict and expands into explicit instructions ("keep face, clothes, hairstyle, pose identical"). That's the honest recognition that Qwen-Edit's whole-frame regeneration will change your subject unless you fight it with language. There are also psychological_effect (vulnerability, power, intimacy…) and focal_point (which body part the shot emphasizes) - the difference between "a low angle" and "a low angle that makes this person look heroic."

How it works

Six perspective presets (eye_level_front by default, plus high/low/worm's-eye, side profile, three-quarter, dutch angle) each map to a researched angle phrase plus the right psychological framing. body_proportion guides the model on exaggeration (elongate for low angles, diminish for high), and three booleans - background_adaptation, lighting_reinforcement, composition_centering - each append a clause that keeps the scene, light and framing coherent with the new perspective. They all default to true and all read like they should.

Outputs: perspective_prompt and full_prompt (with scene context), a preservation_hints string carrying the identity instructions, and system_prompt for the encoder's system input.

The inputs that matter

• perspective_preset - pick the angle; it sets focal point and psychology defaults.
• identity_preservation - strict is the recommendation for a reason. Loose/none exists but you'll regret it on anything client-facing.
• scene_context - the scene the person is in ("in modern office", "outdoor garden"). Feeds both prompts.
• custom_additions - a free-text escape hatch for anything the presets miss.

Installing it

Ships in ComfyUI-ArchAi3d-Qwen by Amir Ferdos (ArchAi3d):

# ComfyUI Manager: search "ArchAi3d Qwen"
cd ComfyUI/custom_nodes
git clone https://github.com/amir84ferdos/ComfyUI-ArchAi3d-Qwen.git
cd ComfyUI-ArchAi3d-Qwen
pip install -r requirements.txt

Restart. Load a Qwen-Image-Edit model (2509/2511, GGUF-quantized in practice) and the pack's encoder, and wire the two prompt outputs in.

Common issues

• Strict isn't literal. identity_preservation: strict is a strong instruction, not a face-lock. The community's consistent finding - documented in the identity-preservation KB - is that Qwen-Edit drifts most on faces it hasn't seen in training. For real faces, plan an inpaint pass afterward.
• The model re-poses instead of re-shooting. A "camera perspective change" can come out as the person standing differently. Keep the subject centered and the identity clause connected.
• Chain drift. Every pass re-emits the frame, so a perspective change is also a subtle redesign of everything else. Background/lighting toggles help, but pixel-exactness isn't on the table with this model.

This is the node you reach for when you want a portrait re-shot at a storytelling angle - the psychological framing is a genuinely thoughtful touch that generic camera nodes don't give you.