Greetings.
A graph needs to be created for the calculator. Where options can be visualized. The calculator is for calculating the price of modular houses made from containers.
Example render

For example, such a house can come in different variations. With gray walls, siding. With floor-to-ceiling windows, with regular ones, floor-to-ceiling doors and regular ones.
Then 2 floors with stairs. 2 3 5 sections. That is, a set of different images
The overall goal is to create a base and from this container make variations of images.
All of them will only be on a transparent background. And differ from each other by wall colors (3 options), floor texture (3-4 options - tiles, laminate, carpet) etc.
Currently, the following questions are in the calculator:
2. How do you want the exterior cladding of the building to be done?*
Sandwich panel with a microwave or trapezoidal profile
Wooden cladding "Swedish rebate" (painted black)
Plastic (paneling) panels
HPL boards (solid laminate panels)
3. How should the walls and ceilings be finished inside?*
Laminated chipboard or smooth steel sheet
Ready wall panels with textured coating
Gypsum board with fiberglass or painting
Other
4. What kind of flooring do you want in the building?*
Standard PVC flooring
Carpet tiles
PVC planks "herringbone"
Other
5. What additional elements do you want to have in the building?
(You can choose several options.)
6. What purpose do you want to use the building for?
(If your option is not listed, choose "Other".)
Here for understanding how it might look (this is just a photo)



Interested in the price for the main render and for the variation. Thank you.