i have installed the latest 3.0 blender version but the render time is longer instead of being reduce can anyone help
rendered in 2.93.2 =
rendered in 3.0 =
i am using rtx3090 with ryzen5950x
The new shadow catcher is MUCH slower than the old one because it includes indirect lighting.
https://developer.blender.org/T93324
Also old settings do not translate 1:1 with Cycles X, like noise threshold values, Cycles X might be slower because it is cleaner.
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hi, i dont recommend to use hybrid rendering, in certain gpu=cpu it doesnt really improve the render speed, but instead gives some burden to the cpu, if the gpu memory is too full, but i dont know tbh, also i think is not yet optimized for cycles x (or it works better with intel processors i dont know, or is indeed already available to use hybrid rendering, but you gotta do more considerable tests)
also your samples amount is too high for such simpler render and textures, reduce it to between 200-500 samples
also remember optix in your RTX card can be more faster than cuda most of times, try both optix and OID
also whats your render size, 2048? i think will be not visible too much the difference with the half of that size (1024 x 1024) well unless you really need that size is OK…
Im seeing the exact same thing in 3.5.1 Though i have a shadow catcher object. I dont have the pass enabled. im seeing a difference of 1 minute. 2.93 is 26 seconds and 3.5.1 is about 1m30s
I tried different tile sizes, but that still makes it slower. Rendering it as one big image even goes above 2 minutes. All test where done using CUDA. i have an gtx 1660Ti
I notice that when rendering an transparent image, Cycles X takes longer to go over the transparent areas. When pre Cycles X just zapps over it
You shouldn’t be using tiles in Cycles X unless its a large render or you have a GPU with very low memory, and even then you should only use a few tiles, like 2 - 4 tiles for the entire image. Id disable tiles unless you have a heavy scene or large rendered frame.
The shadow catcher is also just going to be slower in every situation in Cycles X
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