issues with the new IPR refresh button

[jasonhuang1115]

Hey,

It's great to see the button finally being added. Thanks!

Couple issues below:

1. the Maya render view window gets resized whatever the current set render resolution every time I press “Refresh Interactive Rendering” . I keep Maya’s Render View up with minimum screen space to access the option for rendering in half resolution. It’s fairly annoying that I have to keep re-adjusting the Maya Render View as the window size keeps popping back to the current full render resolution.

2. “Refresh Interactive Rendering” re-cache all textures which takes as long as stop and start the IPR again manually. Can "Refresh Interactive Rendering " start with the currently cached textures and only load the updates on textures and scene changes? I guess this button/function is designed for when IPR becomes unresponsive so users can “wake” it up. But can it be made as actually a faster restart otherwise it is the same as push the stop and re-start IPR manually?

3. re-draw of the buttons is still an issue. I have to click somewhere else in Maya and click the stop button again to actually see the correct button status.

cheers,
Jason

[snivlem]

4) Also, if you have two cameras in scene persp and Camera1, you can choose Camera1 to IPR render. After finishing the VFB says "Current (Camera1)" but it always reverts back to persp instead of using the last used camera for the IPR render.

[yolov]

1. I can see how that can be a problem, but we haven't really changed anything. It probably did the same thing with older builds, when you don't have the "hide render view" enabled and you just click IPR in Maya. We can see if we can do something about it, but I doubt it.

2. IPR has never supported texture/geometry caching between renders.

3. This has been an issue for a long time and it's really hard to fix without causing crashes (which is exactly what happened last time when we tried fixing it).

4. That's a bit confusing, I agree. But there's a huge difference between the normal VFB render buttong and the new IPR render button in that the render button performs "reneder *last*" while the IPR button does exactly what the Maya's IPR button does. So if you click it, it won't start IPR with the last used camera, but instead will start it from the currently active viewport - just like the IPR button has done up until now. We only added it to the VFB, that's all. You can always use the right-click menu to choose the camera to start IPR from. The menu is the same as the one on the render button - it just gives you the last used camera (maybe we can do something about that).

[jasonhuang1115]

1. I can see how that can be a problem, but we haven't really changed anything. It probably did the same thing with older builds, when you don't have the "hide render view" enabled and you just click IPR in Maya. We can see if we can do something about it, but I doubt it.

I didn't have this issue ever in older builds. I keep the Maya render view up and scale it to minimum window size to access the menu bar only. Every time I stop IPR and re-start it, Maya Render View stay where it was and doesn't change at all.

2. IPR has never supported texture/geometry caching between renders.

This kind of defeats the purpose of "Refresh Interactive Rendering". Maybe I misunderstand the purpose of this function. I expect it is a function to simply "wake up" IPR if for any reason it stop updating with scene edits. In my blurry memory, in Arnold, there is a button to "pause" IPR and "resume" (not talking about checkpoint in rendering) where it will resume immediately.

[vlado]

2. IPR has never supported texture/geometry caching between renders.

I think we do actually cache textures between renders; and if the option to cache geometry is enabled, we probably cache geometry too. This will be way more useful when we do the IPR in-process though, rather than running a separate render server.

Best regards,
Vlado

[snivlem]

Thanks Alex on #4, that makes sense.

[yolov]

I didn't have this issue ever in older builds. I keep the Maya render view up and scale it to minimum window size to access the menu bar only. Every time I stop IPR and re-start it, Maya Render View stay where it was and doesn't change at all.


This kind of defeats the purpose of "Refresh Interactive Rendering". Maybe I misunderstand the purpose of this function. I expect it is a function to simply "wake up" IPR if for any reason it stop updating with scene edits. In my blurry memory, in Arnold, there is a button to "pause" IPR and "resume" (not talking about checkpoint in rendering) where it will resume immediately.

Ah, we do actually support the pause button in the render view it's not in VFB though for the moment.
Can you tell me what Maya version you are using?

[jasonhuang1115]

Ah, we do actually support the pause button in the render view it's not in VFB though for the moment.
Can you tell me what Maya version you are using?

I am using Maya 2016 and 2017. For the "pause" feature, can users resume it without going through the whole scene caching and translation? If yes, I think it might be more useful than the "Refresh interactive IPR" button. Can you expose this "pause" feature in the VFB UI?

[yolov]

It just pauses and then resumes the RT. I'll add a request to add it to the VFB.

[jasonhuang1115]

Awesome! Thanks Yolov. Please let us know when it's added in the nightly.

[vlado]

It just pauses and then resumes the RT. I'll add a request to add it to the VFB.

I hope that getting an icon for it won't be the slowest part of the implementation

Best regards,
Vlado

[shaio]

I didn't have this issue ever in older builds. I keep the Maya render view up and scale it to minimum window size to access the menu bar only. Every time I stop IPR and re-start it, Maya Render View stay where it was and doesn't change at all.

Hello,
Can you specify in which V-Ray version this issue wasn't present, that would be very helpful. I've gone all the way down to V-Ray 3.00.01 in Maya 2015 and the issue was still there.

[jasonhuang1115]

Hello,
Can you specify in which V-Ray version this issue wasn't present, that would be very helpful. I've gone all the way down to V-Ray 3.00.01 in Maya 2015 and the issue was still there.

I can't exactly recall as this has been the way of me working in Maya almost as long as I can remember. I don't activate "hide render view" and simply leave the Maya render view window somewhere on my monitor but with very minimum screen real estate for accessing some menu functions like pick IPR camera and changing rendering solution to 50% or 75%.

I am on Windows 7 x64 and I recently have used Maya 2014 through 2017 and VRay 3.0 through 3.4.

[shaio]

I tried with Maya 2014 and V-Ray 3.0 and it still resizes the Render View.
It seems that it happens with Maya Software render too (no V-Ray loaded). Unfortunately we won't be able to fix this since it's Maya issue.

[jasonhuang1115]

I tried with Maya 2014 and V-Ray 3.0 and it still resizes the Render View.
It seems that it happens with Maya Software render too (no V-Ray loaded). Unfortunately we won't be able to fix this since it's Maya issue.

A bit sad, but I will probably use the "Pause/Resume IPR" button, if added, more often than the "Refresh IPR" button. So as long as the "Pause" button doesn't resize the Maya Render View window, I am ok.