Quick rooms to render

RCR-2631227

Hello everyone, could you kindly tell me the furnished rooms in the store that you consider by default to be faster to calculate during the rendering phase with Iray? In general, it doesn't matter the genre, as long as it's not extremely slow for the calculation, I understand that it varies from machine to machine but in any case I imagine you will have rooms purchased in the shop that are generally faster to calculate, right? If so, please indicate them to me here, I might be interested in buying them.

Anyway my specs are:
RTX 4070ti
In the next few months I will upgrade to cpu and ram with i5 14600k and 32gb of high frequency DDR5 ram (I currently have an i7 9700k and 16gb of 4000 MHz ram)
Unfortunately, closed rooms are always very heavy to calculate, so if you could tell me the quickest ones to calculate I would be very happy.

Thank you

FirstBastion

As a general rule,  items with reflective surfaces and degrees of transparency will take longer to render.  So flat matte walls will render faster than a glossy wall with windows, (transparent glass) with sheer drapes (transparent fabric) .

Fill that room up with furniture with any kind of metal or glossy surface that reflects,  and each ot those reflection calculations will add to the render time.  Have any two reflective surfaces bouncing off each other and those calculations start increasing exponentially. 

Fill that room up with  furniture with any kind of glass surfaces that reflects and also refracts light,  and you will have increased calculations. 

Then you have to consider the lighting.  How many light sources, how many additional calculations for the shadows those lights will cast.  Are they emmisive?  How dense is the poly count of those emmissive surfaces. Does the light then, also pass through a transluscent lens. Again more to calculate. 

RCR-2631227

FirstBastion said:

As a general rule,  items with reflective surfaces and degrees of transparency will take longer to render.  So flat matte walls will render faster than a glossy wall with windows, (transparent glass) with sheer drapes (transparent fabric) .

Fill that room up with furniture with any kind of metal or glossy surface that reflects,  and each ot those reflection calculations will add to the render time.  Have any two reflective surfaces bouncing off each other and those calculations start increasing exponentially. 

Fill that room up with  furniture with any kind of glass surfaces that reflects and also refracts light,  and you will have increased calculations. 

Then you have to consider the lighting.  How many light sources, how many additional calculations for the shadows those lights will cast.  Are they emmisive?  How dense is the poly count of those emmissive surfaces. Does the light then, also pass through a transluscent lens. Again more to calculate. 

Thanks so much for the advice, I've been using C4D all my life but on DAZ, perhaps because I tend to use pre-made scene packages, unlike on C4D where I model the props myself and manage the entire creation/optimisation process, I tend not to think about things that I normally think about when I'm in C4D, because actually reflections, refractions, transparencies, bounces of lights, displacement, are things that have a very high impact in terms of calculation times. Effectively by removing windows, mirrors, using distant light as lighting (therefore creating 5 walls and leaving the one behind the room open), the calculation times change exponentially. At this point you gave me the idea of leaving aside the pre-made packages where there are also walls or things that are too heavy and perhaps just using the props, giving more attention to the optimization process, which I didn't do before. Thank you so much for the advice!