This has been mentioned in a few other threads but I think it deserves its own topic and a bit more scientific approach to show the issue and need for improvement. ( @andy , @DavidEranen , @jeff - this is for you guys) Problem: Sun+Skylight with high quality shadow setting display is very slow due …

Hi All, Looks like in the next WIP a big display speed improvement is coming up! Following up on this topic where the idea was defined along with some tests, here are the results after implementing it. Please note that the V6 metric also applies to WIP prior to making this recent change. This aff…

Thanks @Jarek for the writeup. I agree with all your points. I’ve made the following YouTrack items: https://mcneel.myjetbrains.com/youtrack/issue/RH-57802?project=RH https://mcneel.myjetbrains.com/youtrack/issue/RH-57803?project=RH https://mcneel.myjetbrains.com/youtrack/issue/RH-57804?project=…

Hi David, great to hear and thanks for logging these items. I was trying hard to bring this up before you guys go into UI lock for V7 mode and tweaks like that would not be possible. cheers, –jarek

While preparing this test I realized TestMaxSpeed command doesn’t switch to degraded Skylight, which unless using a trick I did doesn’t produce valid measurement. Maybe that could be tweaked as well?

On the contrary…it produces very accurate results… Switching to some degraded mode is what produces inaccurate results. We need TestMaxSpeed to produce, constant, reproducible results… having a degraded mode kick in at random times doesn’t give us that. That being said, there is an option to TestMa…

I think that your #1 should really be a percentage of the overall GPU memory…otherwise we’re just going to run into this again… However, even that is probably a bad idea since users will just max everything out because they just paid a lot of money for a new video card…right? :slight_smile: Actuall…

@Jarek Just curious… What is the maximum texture size reported in Rhino’s OpenGL page on your system? -J

Hi @jeff - the max texture size in listed in OpenGL info in Rhino options here is: 16384 [image] So this was the maximum setting that when changed via scripting or editing DisplayMode ini file had any effect on shadow quality. Beyond that, system was working fine but just no quality improvement i…

[image] jeff: On the contrary…it produces very accurate results… Switching to some degraded mode is what produces inaccurate results. We need TestMaxSpeed to produce, constant, reproducible results… having a degraded mode kick in at random times doesn’t give us that. Oh thanks - I did not rea…

Great job @Jarek . I don’t have time nor knowledge to go deep into it but I would like to add my voice to the request of making shadows and display performance better. Some performance tests Latests WIP CPU: i7-6820HK GPU: GTX 1070 8GB (mobile) Very simple scene. I would really like to write some…

Shadows and Display Speed test/need for tune-up

Serengeti (Rhino WIP)

brian (Brian Gillespie) April 14, 2020, 10:32pm 10

RH-57802 and RH-57804 are fixed in the latest WIP

Topic		Replies	Views
Shadow Map size Rhino for Windows	21	3631	January 31, 2022
Viewport Render Shadow Quality Rendering WIP	40	8594	December 14, 2017
What are these Advanced Options for SkylightShadows? Rhino for Windows	14	1516	December 5, 2023
Very slow display, not usable Serengeti (Rhino WIP)	57	6807	November 2, 2017
Slow Display Serengeti (Rhino WIP)	32	3441	June 21, 2017

Shadows and Display Speed test/need for tune-up

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