Schita3D - ControlNet Comparison Tests

Testing different models, control strengths, and prompts to evaluate sketch-to-render accuracy

Original Kitchen Sketch

Original sketch

L-shaped kitchen: Tall cabinet (left) → Range hood + cooktop (center) → Upper shelving → Sink area (right)

Test #01: Flux ControlNet - Strength 0.4 - Generic Prompt

Model: flux-dev-controlnet
Control Strength: 0.4 | Control Type: soft_edge
Preprocess: basic
Input Output
Input (preprocessed) AI Output
Prompt: photorealistic kitchen render, modern interior design, high quality

Test #02: Flux ControlNet - Strength 0.6 - Generic Prompt

Model: flux-dev-controlnet
Control Strength: 0.6 | Control Type: soft_edge
Preprocess: basic
Input Output
Input (preprocessed) AI Output
Prompt: photorealistic kitchen render, modern interior design, high quality

Test #03: Flux ControlNet - Strength 0.8 - Generic Prompt

Model: flux-dev-controlnet
Control Strength: 0.8 | Control Type: soft_edge
Preprocess: basic
Input Output
Input (preprocessed) AI Output
Prompt: photorealistic kitchen render, modern interior design, high quality

Test #04: Flux ControlNet - Strength 0.6 - Kitchen-Specific Prompt

Model: flux-dev-controlnet
Control Strength: 0.6 | Control Type: soft_edge
Preprocess: basic
Input Output
Input (preprocessed) AI Output
Prompt: photorealistic L-shaped kitchen render, upper wall cabinets, lower base cabinets, range hood above cooktop in center, built-in oven on left, sink on r...

Test #05: Flux ControlNet - Strength 0.8 - Kitchen-Specific Prompt

Model: flux-dev-controlnet
Control Strength: 0.8 | Control Type: soft_edge
Preprocess: basic
Input Output
Input (preprocessed) AI Output
Prompt: photorealistic L-shaped kitchen render, upper wall cabinets, lower base cabinets, range hood above cooktop in center, built-in oven on left, sink on r...

Test #06: Flux ControlNet - Strength 0.95 - Exact Layout Prompt

Model: flux-dev-controlnet
Control Strength: 0.95 | Control Type: soft_edge
Preprocess: basic
Input Output
Input (preprocessed) AI Output
Prompt: EXACT kitchen layout from sketch, preserve all cabinet positions precisely, tall cabinet on far left, range hood in center-left, upper open shelving, ...

Test #07: ControlNet Scribble - Default - Generic Prompt

Model: controlnet-scribble
Control Strength: None | Control Type: None
Preprocess: basic
Input Output
Input (preprocessed) AI Output
Prompt: photorealistic kitchen render, modern interior design, high quality, best quality, extremely detailed

Test #08: ControlNet Scribble - Default - Kitchen-Specific Prompt

Model: controlnet-scribble
Control Strength: None | Control Type: None
Preprocess: basic
Input Output
Input (preprocessed) AI Output
Prompt: photorealistic L-shaped kitchen, range hood above cooktop, built-in oven on left, sink on right, modern grey cabinets, white countertops, best quality...

Test #09: Flux ControlNet - Strength 0.8 - Canny Edge Preprocessed

Model: flux-dev-controlnet
Control Strength: 0.8 | Control Type: canny
Preprocess: canny
Input Output
Input (preprocessed) AI Output
Prompt: photorealistic L-shaped kitchen render, follow edge lines exactly, range hood above cooktop, built-in oven on left, sink on right, modern design

Test #10: Flux ControlNet - Strength 0.95 - High Contrast Sketch

Model: flux-dev-controlnet
Control Strength: 0.95 | Control Type: soft_edge
Preprocess: high_contrast
Input Output
Input (preprocessed) AI Output
Prompt: EXACT kitchen layout, preserve geometry precisely, tall unit left, hood center, shelving upper right, cooktop under hood, sink right side, photorealis...

Key Questions to Answer

Decision Point: If none of these tests preserve exact geometry, the Block-out-to-Render pivot is the right choice.

Generated: 2026-01-15 15:51:22