I have been asked to render out boards with different cloth samples on them,for acoustic boards.
I have the samples physically, what is the best process to get the cloth perfect if that is possible, photograph plan down shot with diffuse light.
Is there a simple set up that can be purchased to get the lighting correct?
I also have another query.
I have 1 image with 16 different version of the material to change out.
What is the best process for the this, in vray I think it is the Vray switcher material, but I would prefer to use Corona?
Have patience, your posts were less than 7 hours apart. Besides it being a monday time zones are a thing as well.
Using a straight down photo during overcast daylight outside is the easiest, tried and tested method of capturing anything in VFX. Going for a direct PBR capture is quite a difficult task, maybe overkill for a material recreation.
I’d suggest you go with a material tutorial, there are one’s made by the Corona team. They will guide you in recreating materials. With a straight down photo as reference or part of a texture will propably do it.
If you really want to go the capture route, with color calibration on so on, [dubcat did an exellent writeup about this.](https://forum.corona-renderer.com/ index.php?topic=10409.0 ) Although again, this is time and ressource intensive, propably overkill.
As for the switcher thing, I read the Vray Doc on what it does. I don’t quite understand quite why you need a value in a material to change materials themselves… so I don’t know about that.
However, 3dsMax always supported batch rendering, which allows you to save state and render multiple materials / views / render settings. But again, someone else is more qualified to answer on that.
Good Morning.
Thank you very much for the reply.
Apologies, point taken on the reply.
I am under pressure to get the work done, and wanted to be sure of the right method.
Thank you also for the links they are great, I do appreciate them.
I recommend using a macbeth chart to get accurate colour representation as detailed in dubcat’s process.
If you have access to swatch samples that are at least 8 inches long/wide and a flatbed scanner, I’ve had good results with scanning fabrics and then making them seamless in photoshop.
As for swapping out materials, I would just make a multi/sub-object material with all your fabric materials and then click and drag to swap the materials around when you need to render out a new version. then just use the render selected mode to render your variations.
that’s actually a really good idea!