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lkatelier

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Reply with quote  #1 
I am still frustrated with the jagged lines my renders generate. I do a lot of interiors so moldings and fine reveals are always part of my output. How can I make these images crisper with sharper straight edges that are not on the vertical? For example, the vanity in green is not clean-lined in it's rendition. Sharpening the image a great deal does not work as some details like grout lines or wallpaper textures become distorted. I have tried increasing image size and I have used an interior fine setting at times without improvement and the slower render times are not sustainable with the fine setting on my computer. Any input or thoughts on this are appreciated! I am thinking I need to upgrade my hardware but not sure what to upgrade to so any input on that would also be appreciated. thanks all! 😉

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png Powder Room.png (2.81 MB, 24 views)

JustinSlick

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Reply with quote  #2 
First of all... that print and palette are so great! I love this room!

For jagged lines:

  1. Have you tried using a subtle line-overlay?  Although it isn't a "real fix," the problems in this image are slight enough that it might at least be a suitable band-aid.
  2. Personally, I agree that the fine presets are only rarely or marginally helpful with difficult cases.
  3. There is a "per-material" edge smoothing setting.  You could try color picking the vanity and setting the edge smoothing to "ultra" in the material settings.  I've found this to be similarly unpredictable.

The most reliable solution I've found has been increasing image size, but you already know this.

I actually like the feel that the QMC preset gives.  Lighting generally looks great, and I think the slight noise sometimes helps mask the jaggedness problems.  Could be worth a try, but at this image size it might be too noisy.

Oh also, what is your current hardware?  Knowing what you have now will shed more light on whether an upgrade would help you significantly.

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lkatelier

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Reply with quote  #3 
Thank you Justin, I modify the images with editing software but it adds a step to the process and is not always successful because the image is not large enough and the jagged pixel is still a factor. If I create a really large image then a new problem occurs because shrinking fine wallpaper or fabric textures down for web viewing compresses them and makes them a real mess! I will try the preset (what does QMC stand for?) and I will try the ultra setting to see how it works out. 

Attached is what I am using - you have previously recommended I increase the RAM but I would like to find out if getting more RAM is just delaying the inevitable need for new hardware that will result in faster images. I am also not sure if upgrading Windows will affect rendering. The entire system I am using is 5 years old now, so something needs upgrading!

You expertise is appreciated! 😉

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png System.png (47.92 KB, 13 views)

bigstick

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Reply with quote  #4 
Basically your machine is a bit underpowered for rendering unless your scenes and renders are fairly small and simple. I would recommend at least a quad core i7 with 16Gb RAM and at least a 500Gb SSD. Try to get a decent discrete video card. In effect this means an Nvidia or AMD one. I would also go for at least 2Gb of Video RAM.

QMC stands for Quasi Monte Carlo, which is a type of rendering algorithm.

Jagged lines happen only with certain presets.

I would also download the RoundCorner plugin and use it for the edges of your worktop. just round by say 3mm with 1-2 segments, and soften the edge. This will give you a much more subtle effect without too many polygons, so it won't appreciably slow down your renders.

You might also want to use the Podium Image Editor for some post-processing. it's really fast and simple and can make fantastic adjustments to your renders, but I warn you, once you start, it becomes quite addictive 😉





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lkatelier

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Reply with quote  #5 
Thanks Bigstick, I have already discovered the Podium Editor and find myself using it for images outside of my renders! Thank you so much for the excellent information! I am looking forward to speedier and better renders!
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