vray_beta_3.4 Feedback?

[sebastien_berthier]

And, this would mean the world to me: would it be possible to have a way to edit the curves of textures like the outout rollout in 3ds max? This would speed up my workflow tremendously.

[tedvitale]

And, this would mean the world to me: would it be possible to have a way to edit the curves of textures like the outout rollout in 3ds max? This would speed up my workflow tremendously.

We won't have that ability immediately, but it will be something we are actively exploring and researching was to implement this.

I really appreciated the bump render pass in order to create materials. It would be nice to have it back.

I'm not sure what you are referring to exactly? Could you be a bit more specific? We never had a render channel pass in 2.0 specific to the material Bump.

I cant find the distributed rendering option. But I guess you ll implement that later. (By the way, the new license server is way more visually appealing and easy to use than before. I appreciated that)

Its on the way with a huge update and it will be in the final release!

It s also quite tricky to save renders from the frame buffer. It s impossible to choose the correct folder and the file extension. You can save the beauty pass in .exr, but not the other passes.

This has been fixed and will be updated in the next released beta.

I also noticed that the 2 point perspective doesnt react when you pan or zoom the camera. It just renders the initial view.

This has been fixed and will be updated in the next released beta.

[sebastien_berthier]

Great news. I look forward to the next beta release then!

I ve got another question. In the color mapping, Should I switch on "Linear Workflow" or not in this version of vray? I ve read somewhere that you re not suppose to switch it on vray 3.4 for 3ds max. Is it the same for sketchup?

[sebastien_berthier]

I also noticed that materials lose their material ID color when you close / relaunch sketchup.

[tedvitale]

I also noticed that materials lose their material ID color when you close / relaunch sketchup.

This is something I have been trying to track down. What exactly are the steps to reproduce this? Its literally just a close, and open and the ID's are gone? Or is there more too it than that?

Thanks for the feedback!

[tedvitale]

I ve got another question. In the color mapping, Should I switch on "Linear Workflow" or not in this version of vray? I ve read somewhere that you re not suppose to switch it on vray 3.4 for 3ds max. Is it the same for sketchup?

In 3DS Max you have more control over the Gamma settings of your materials and your workflow in general through the 3DS Max settings. It gets involved and I'm not going to go into workflows in Max, but I will say for you and the majority of users working in Version 3 for SketchUp, leave "Linear Workflow" enabled. All your gamma settings are being managed correctly by V-Ray and unless you want to manage your material gamma settings for every material in your scene manualy, which you dont need to do and I dont recommend, you should leave "Linear Workflow" enabled.

I hope that helps! If you have more Gamma questions or need specific workflow recomendations, please let me know!

[Shiyan lin]

I am a newbie .I wonder that in Vray For Sketch up，All the textures are automatically assigned a "color correction"option , and in color mapping sequence, all textures are de-gamma to 1.0, finally apply a gamma 2.2 to RGB channel.So why the frame buffer SRGB button for some reason is automatically turned on in beta 3.4? Everything seems to be wash-out look like.

[tedvitale]

I am a newbie .I wonder that in Vray For Sketch up，All the textures are automatically assigned a "color correction"option , and in color mapping sequence, all textures are de-gamma to 1.0, finally apply a gamma 2.2 to RGB channel.So why the frame buffer SRGB button for some reason is automatically turned on in beta 3.4? Everything seems to be wash-out look like.

The texture its self is not gamma corrected, and there are no color correction options added to the bitmap texture. I think you might be referring to is the Gamma slider in the Bitmap texture, I assume this based off of your comment "...all textures are de-gamma to 1.0..." but the Gamma slider in the Bitmap functions as a gamma multiplier (it should probably be renamed as such) and it is not showing the gamma of the image (which if its a png, jpeg, tiff, etc...). The only image textures in Gamma 1.0 are EXR and HDR image files.

Now, to address the other half of your comment. Because, by default, we have "Don't Affect Colors" enabled in the color mapping, we are not "baking" the Gamma into the frame buffer image and this dictates that the sRGB function needs to be enabled to correctly represent the image in gamma 2.2. The reverse is true, that if you disable "Don't Affect Colors" you also have to disable sRGB in the framebuffer.

All that said, you dont need to worry about the gamma of any of your images because V-Ray for SketchUp handles the gamma of an image for you so you can focus on creating beautiful images rather than trying to manage gamma settings.

[sebastien_berthier]

I can not really nail it. It seems to appear after skechtup crashes... sorry.

[Shiyan lin]

All that said, you dont need to worry about the gamma of any of your images because V-Ray for SketchUp handles the gamma of an image for you so you can focus on creating beautiful images rather than trying to manage gamma settings.

Ted,Very appreciate that you explains this issue so well. I won't care about gamma correction any more! Maybe the only thing should be carefully dealt with might be color mapping , Reinhard is always useful somehow ,I don't have to change the option to linear multiply or exponential anyway ,just tweak the burn value to get a not over exposed render,am I right?

[sebastien_berthier]

There is also an issue when you change the rotation of the HDRI in RT. It works for a while and then it resets to 0.

[tedvitale]

Maybe the only thing should be carefully dealt with might be color mapping , Reinhard is always useful somehow ,I don't have to change the option to linear multiply or exponential anyway ,just tweak the burn value to get a not over exposed render,am I right?

I typically use Reinhard for that reason as well.

[tedvitale]

There is also an issue when you change the rotation of the HDRI in RT. It works for a while and then it resets to 0.

Thanks for the feedback! We've seen these issues with RT and have fixed a lot of them. You'll see some big exciting changes in the next release.

[sebastien_berthier]

Cant wait!

[sebastien_berthier]

Hey Ted,

Thanks for releasing the new beta.
There is still an issue when installing though. I m using mac OSX, and the installer put the files in the folder "/Library/Application Support/SketchUp 2015/SketchUp/Plugins" instead of "/Users/User/Library/Application Support/SketchUp 2015/SketchUp/Plugins" (this is a hidden folder).
Looking forward to checking what you updated.