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Messages - FrostKiwi

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[Max] Daily Builds / Re: 2.5d Displacement Playground!
« on: 2019-10-15, 12:28:47 »
Here is my comparison
Very good info, thanks :]
But how on earth is 2px + Autobump slower than 0.5px without autobump O.o

Also, if autobump generates bump information from the displacement texture, doesn't that mean that the normal map and / or bump map is irrelevant?

[Max] Daily Builds / Re: 2.5d Displacement Playground!
« on: 2019-10-08, 10:56:33 »
One more test. New displacement @ 1px VS old @ 3px VS old @ 3px with disabled autobump. In my opinion, old displacement with enabled autobump, looks the best.
Ohh, 2.5D Displacement does not gradually replace Displace with Normal/Bump at a distance?
That would be a hard blow to usability. Or is that just a bug?

Does 2.5D Displacement fully replace the old method?
Is there any reason or scenario to use the old one except compatibility to old scenes?

Unfortunately for people with Keplar generation cards we will not be rolling back to Optix version 5.x.x.
Ahhh, shucks. Progress before compatibility I guess. Either decision is a good one :]
Just FYI, according to the Steam survey, the 750ti is still in the Top 10 most videocards used.
Just out of curiosity, is there some hidden "replace this file" and change this .ini setting to enable zombie backwards compatibility held together by tape and bubble gum - only for the adventurous Corona-nauts?

So, is it Nvidia or Corona that is dropping support for older 700 series cards?  What exactly did daily-2019-09-20 do to break things and what files maybe need to be removed to get the previous daily-2019-08-27 building working again?
Nvidia released Optix 6.x.x, this version dropped support for the kepler architecture (GTX Titan 1st gen, GTX 6xx and GTX 7xx).
The Corona Team probably missed this and updated corona's 5.x.x version to 6.x.x, killing support.

Now it's up to the Corona team to either detect the presence of a kepler card and / or allow an option download for the 5.x.x version of Optix or just stick to Optix 6.x.x exclusively and make me a very sad panda :[

Gallery / Re: Best noodles in town...
« on: 2019-09-20, 19:24:32 »
That noodle android has a body made fully out of carbon fiber.
I guess those noodles really are the best noodles in town, if he can afford that :]

Nvidia doesn't want that you would sit on that old card for too long :]
That is just major league bullshit. I honestly don't get it. Optix performed so well on my card, why would you poop on your customers so hard?
I hope someone comes along to reset the GPU monopoly, like it happened with Ryzen crushing Intel's offerings this generation.
I'll go for an AMD GPU next time, just out of principle =.=

other renderers or 3rd party plugins installed which could be using Optix?
Nope, just corona.

Maybe it's something with backwards compatibility, considering this is the kepler architecture? This is the oldest supported architecture of optix after all....
Can I give some more indepth info? Some log or something?


ohhhhhhhh no.
Support for kelper is dropped with Optix 6.0 :[

All Users with a GTX 6xx or 7xx can go home.
The 780ti is still a very popular card and support is dropped, god damn.
Can you somehow provide both version? Download 6.X.X Optix for newer GTX cards and an optional download with Optix 5.X.X for Kepler (GTX 6XX and GTX 7XX and first gen GTX Titan) cards?

edit2: Considering how on my GTX 770 even a 4k denoise is instant, I kinda insist for Corona's optix to be backwards compatible :P

Did you try a complete uninstall and reinstall of Corona?
Yes, twice. Complete uninstall before trying daily-2019-08-27 and daily-2019-09-16.
I double checked, that the old denoiser was gone and the installer did also redownload the denoiser.

When I downgraded to daily-2019-08-07 I did not reinstall and it worked.
tl;dr recap:
Newest Nvidia Driver -> "Error, expected Optix 6.0.0, but you have 6.5.0"
Driver 418.81 -> "Error as posted here"

Optix seems to be busted in the last update. (GTX 770 here)
If I upgrade to the latest NVIDIA driver, it complains that the expected Optix Version is 6.0.0, but the available is 6.5.0
Downgrading the driver errors out with
Code: [Select]
Failed to initialize the denoiser.
Unknown error (Details: Function "_rtBufferCreate" caught exception: Encountered a rtcore error: m_exports->rtcDeviceContextCreateForCUDA( context, devctx ) returned (2): Invalid device context)

Both version daily-2019-08-27 and daily-2019-09-16 are broken in that way for me.
Had to downgrade Corona to daily-2019-08-07 to get it working again.

Hardware / Re: 10bit output with Geforce Cards
« on: 2019-08-21, 13:53:12 »
NVidia is just ugly with this.

If they really have buried this stupid Quadro-policy, I would change my mind about fancy 10bit screens.
If you are in exclusive fullscreen and on DirectX (not sure about vulkan here), then 10-bit output will work. So for gaming you are fine. Anything going through NVENC is also fine and will encode/decode 10-bit or 12-bit video.
If you have a window however and / or use a program written with OpenGL as the backbone, Nvidia refuses 10-bit color and Remote Desktop. So no 10-bit photoshop, 3dsmax or similar without shelling out for a quadro card.
To be fair, a diamond house is probably expensive with maintenance.

There is nothing you can do about it, unless you have a kepler generation card, which can be bios modded to think it's a quadro.

[Max] I need help! / Re: VR Walk-through
« on: 2019-08-16, 11:05:12 »
I am not sure that either of those are VR though (that is, stereoscopic, and can be viewed on things such as Oculus, Google Cardboard, GearVR etc.)
Thanks, Tom, I am looking for something that is stereoscopic.
With Version 1.19, krpano supports stereoscopic VR and their Tour examples demo the needed tour capability,
Pano2VR supports stereo as well, as outlined in their tutorial.

I got an Oculus Quest this week actually. Totally recommend it for a wireless showcase for clients on site.

Every single one of my scene (by now 8th) crashes during IR if I play long enough with Corona Light.
Reminds me of the joke: "Doctor, it hurts when I do this."
Doctor: "Then stop doing it"
Stop playing with the light for too long, I guess :P

[Max] General Discussion / Re: "Rough AO"
« on: 2019-08-15, 15:00:41 »
Doing a crap ton of openGL programming recently and it's standard to shove together image data into the 4 channels of a RGBA image. I don't know the internals of Corona, but it does save on bandwidth and processing, since you upload just 1 texture to the GPU in one call instead of 4 and you take up only one texture unit.
However, don't overthink it. Once it's loaded there should be no difference. Do what is the most comfortable to you as the artist. Comfort is the biggest speed-up you can get :]

but then I heard a person say that the PNG reader in 3dsMax is single threaded and slower than Tiff.
That is true, the PNG reader is a little disaster. I managed to break and crash 3dsMax constantly by piping 40 PNG sequences into the Corona multi map.

I don't like how long photoshop is taking to compress PNGs.
They addressed this with a compression complexity setting, but it is indeed crazy how long an 8k by 8k image can take to compress. There is a lot of optimization you can do in PNG's zip compression. I guess for use in web photoshop wants to offer a high compression ratio by crunching the optimal compression settings, to the determent of usability. At least Photoshop does this asynchronously now and doesn't lock up the whole program like it used to in the past.

[C4D] I need help! / Re: Cinematic render
« on: 2019-08-13, 15:08:33 »
This thread... it has potential...

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