A.I. / LLM Good RENDERING Prompts


para-CAD
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I’ve been testing this workflow on a few current projects.

The speed is impressive. For example most of these took under a minute to generate.

The biggest issue I ran into early on was losing control of the architecture… windows shifting, proportions drifting, etc.

What made the difference was tightening up the prompt with clear constraints:

– Preserve exact architecture
– Do not modify structure, openings, or proportions
– Enhance lighting, materials, and environment only

Once those guardrails were in place, the results became much more reliable.

Sharing a few before/afters here.

 

 

Pool side.jpg

Pool side after.png

Entry View Before.png

Entry View after.png

Driveway approcah before.jpg

Driveway after.png

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On 4/28/2026 at 7:24 PM, para-CAD said:

I hope chief abandons it's in app photo-realistic rendering approach and partners with a good AI service (included in our subscription).  And the cloud idea.........I am not inclined to drop Dropbox, or pay more for a CA cloud service.  Chief should integrate with Dropbox.  They don't need to expand outside their true focus...CAD software and not try to be a jack-of-all-trades.

I really don't want them to do away with it totally.  The quick PBRs do work in a pinch, IMO, esp. when I'm just conveying an idea or an approval.  I mean I don't need photo quality for every camara view.  Do they need to go further, I don't think so, or like you mentioned, team up with someone.  There are some on here like Rene who are just geniuses on the lighting and getting their views to look great and natural.  Me, however, I don't want to figure the sun exact direction so that things in a bedroom are not to dark or to bright.  Or figure out how to make a material look more realistic.. and so on on every camera view.  This has taken a lot of time, and I still am not good at it.  I want to drop what view I have and tell the service what I want..  and keep moving on.  Like the two bedrooms.  The first one is PBR, 350 passes.. the second, told Chat to "make more natural and inviting" and mentioned the SW paint number that I had showing in my model.. that's it.

 

All these views you all showed look great to me. 

 

@robdyck 

Rob, I love that style of architecture.. you know its Canada when you see a hockey goal in the cul-de-sac..  "Car".. "Game on"...

 

DUBIN INTERIOR 12.jpg

DUBIN INTERIOR 12 ChatGPT Image.png

DUBIN INTERIOR 14.jpg

DUBIN INTERIOR 14 ChatGPT Image.png

Edited by mtldesigns
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7 hours ago, robdyck said:

I'd like 100% photo realism and a sunny day.

interesting how it first put the front yard tree behind the house. And it almost got the fence house connection right, pretty close. although it looks like the house is bigger that it was at the peak in the original. curious, can you tell it to make it smaller maintaining the aspect ratio?

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4 hours ago, mtldesigns said:

Rob, I love that style of architecture.. you know its Canada when you see a hockey goal in the cul-de-sac..  "Car".. "Game on"...

and you know its southern Alberta circa 1990 to 2010 houses when the only trees you see in a suburb are columnar aspens..

Edited by SHCanada2
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19 hours ago, JonathanK said:

Touché, my friend!

We're all just having some fun. Interesting image

we've come up with. Should we call this a close

encounter of the AI kind? :rolleyes:

 

BTW, some people have expressed, shall we say, 

concern over the little guy's lack of apparel. Not

wanting to ruffle anyone's feathers I submit to you

an edited version correcting that issue.

1994804503_ChatGPTImageMay1202607_39_53PM.thumb.png.76002797c75d8f5c602b07513a11c76b.png

 

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Robert, please don't take this in any way as a criticism

of your image but I find it interesting that AI seems to

like to keep cracks in streets and driveways etc. I seem

to remember someone else also commenting on this

behavior.

 

Usually I would think this would be undesirable as these

are often sign of trouble to come. With this in mind I had

a play with your image to illustrate the possible outcome

of such problems.

 

innocent cracks?

Rendertree.thumb.png.788fac14b490bfac0f6134411da613a3.png 

 

 

Prompt:  Show what would happen if a big sink hole appeared

in the street where the cracks are around the manhole cover. :o

Rendertree-Sink.thumb.png.5228100369373fd409ff873791c58406.png  

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Thanks Michael... agreed that this has been one of the best threads in a long time.

 

On a side, your prompts for maintaining accuracy with the AI work are stellar. Thanks for sharing them. 

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