Messages

31

[Max] I need help! / Re: Do you Halo?

« on: 2017-07-21, 19:21:29 »

There is a trick I used other than turning off premultipled alpha, and that's to find the back ground that will be used and render using it or a similar color. Tends to  knock the issue down and you don't get jaggies.

32

[Max] I need help! / Re: Bake maps lacking contrast

« on: 2017-07-21, 19:19:21 »

That's the intent to a degree :) We can't remodel everything, would there be a setting to get this to happen with Corona?

33

[Max] I need help! / Re: Corona Light Map baking

« on: 2017-07-21, 18:12:31 »

Switched over to this thread, please ignore this one:

https://forum.corona-renderer.com/index.php?topic=16749.new;topicseen#new

34

[Max] I need help! / Re: Bake maps lacking contrast

« on: 2017-07-21, 17:31:29 »

The lightmap bakes to compare as a whole;

Vray:

http://vdcdemo.aareas.com/vdc3d/modelpreview.html?modelname=Vray_PlayCanvas_Simple_Room_Exponetial_Bake_065-WEBGL%20&username=mikek&date=7-17-2017&version=V1


Corona:

http://vdcdemo.aareas.com/vdc3d/modelpreview.html?modelname=Corona_PlayCanvas_Simple_Room_CR_079-WEBGL%20&username=mikek&date=7-17-2017&version=V1


You can see the seams around the trim and window frames the most, the walls and ceiling are one complete models and have welded verts in the Unwrap.



Another example of Corona only, I haven't gotten to go ahead to relight this with Vray.

http://vdcdemo.aareas.com/vdc3d/modelpreview.html?modelname=3975I_Mulbury_WebGL_Cor_BM_LM_073-WEBGL%20&username=mikek&date=7-20-2017&version=V1

35

[Max] I need help! / Re: Light map seams

« on: 2017-07-21, 17:09:29 »

Hi All, I responded on this thread with all the info:


https://forum.corona-renderer.com/index.php?topic=16749.new;topicseen#new

36

[Max] I need help! / Re: Light map seams

« on: 2017-07-21, 17:07:55 »

lightmap_properties.nDilations 32 is the padding setting in the script.
it works with Vray properly, doesen't work with Corona as expected

37

[Max] I need help! / Re: Bake maps lacking contrast

« on: 2017-07-21, 16:52:20 »

Here is the Vray lightmap and Corona lightmaps to compare. You can see the Corona Lightmaps are off compared to the Vray in terms of padding.
I attached 2 images.
I can upload the files so you can take a look at the before and after.

38

[Max] I need help! / Re: Bake maps lacking contrast

« on: 2017-07-21, 16:05:14 »

because you are using wrong gamma as you attached in another topic, all errors write to you how to solve them, just read it

Sprayer, could you link me back to that post?
I can't find it in my forum profile.

39

[Max] I need help! / Re: Bake maps lacking contrast

« on: 2017-07-21, 16:03:23 »

Hi There,
It's a problem for sure in terms of baking, but I can't remodel every interior we do and sort of have to live with that modeling setup unfortunately.

I don't have the same issue with Vray, and that's the bake map, a straight Png, not mip mapped yet, seems to be an error in terms of the bake, that's using Corona 1.5

Mike

40

[Max] I need help! / Re: Do you Halo?

« on: 2017-07-21, 15:19:59 »

Premultiplied alpha issues perhaps, are you saving it as black? is this in Photoshop?
What image format are you using?

41

[Max] I need help! / Re: Bake maps lacking contrast

« on: 2017-07-21, 15:18:35 »

I'd would love to use Gamma 2.2, but render to texture doesn't seem to respect it.

Is there a way to fix that, here are the proper Corona settings, the wrong image was attached before. We have the workflow for compenstating for the Gamma switch in Vray, exposure control *.45 and it seems to works well, little to much contrast.

With baking in Corona the contrast seems reduced compared to the renders, migth be user error though :)



Also, even with padding of 32 pixels, there are a lot of seams in Corona bakes compared to Vray:


http://vdcdemo.aareas.com/vdc3d/modelpreview.html?modelname=3975I_Mulbury_WebGL_Cor_BM_LM_073-WEBGL%20&username=mikek&date=7-20-2017&version=V1


(Bakemaps and lightmaps both have the issue)


The bleed seems to go to black a few pixels early, where as in Vray it takes the last light pixels and bleeds them out 32 pixels.

Attached is a light map with the UV's super imposed

We are completely new to baking in Corona so there might be stuff we are missing.

42

[Max] Daily Builds / Re: Texture baking prototype

« on: 2017-07-13, 14:34:39 »

Second this, so need projection mapping.

WOuld any one know a good work flow for Corona and RRT.
We are padding at 32 and still getting seams showing

https://playcanv.as/b/8ypVaNs5/


The dislike of Corona for Gamma 1 is also an issue, the bakes and the scene lighting don't match well
user error I am sure, these  are our setting for exteriors


I have more info on this thread, please reply there since it was the one that got feedback.


https://forum.corona-renderer.com/index.php?topic=16749.new;topicseen#new

43

[Max] I need help! / Re: Light map seams

« on: 2017-07-12, 21:17:43 »

Bleed = Padding for sure. We have it set to 16 for Exteriors and 32 for Interiors.

We do this via custom scripting and this is the section that pertains to the bleed, I change it manually if it needs to be larger:



   if (substring ((classof renderers.current) as string) 1 6) == "Corona" then
                                             (
                                                lightmap_type = Corona_Light()
                                                --lightmap_type = Corona_Beauty()
                                                lightmap_type.targetMapSlotName = "Self illum."
                                             )
                                          else
                                             (
                                                lightmap_type = VRayLightingMap()
                                                lightmap_type.targetMapSlotName = "Self-Illumination"
                                             )
                                          lightmap_type.outputSzX = render_x
                                          lightmap_type.outputSzY = render_y
                                          lightmap_properties = (surf_scene_array[surf_scene_array_count]).INodeBakeProperties
                                          lightmap_properties.bakeEnabled = true
                                          lightmap_properties.nDilations = 32
                                          lightmap_properties.addBakeElement lightmap_type
                                          lightmap_type.filename = LightBakeMap_png_name
                                          lightmap_properties.bakeChannel = (unwrapMod.getMapChannel())

44

[Max] I need help! / Re: Light map seams

« on: 2017-07-12, 20:08:05 »

Here are some screen shots of our interior and exterior settings, please comment if you see a better way of setting these up for baking in Corona

45

[Max] I need help! / Light map seams

« on: 2017-07-12, 19:16:54 »

Hi There,
Using Corona for Lightmaps baking has some issues for us, wondering if some one or a Dev could comment and let us know if this is a bug or a settings issue.

Our render to texture settings are up to 32 pixels of bleed (32 Interior, 16 Exterior, but this still happens.

There is a bleed / lack of accuracy compared to Vray and as a result large surfaces have a seam like this around them
(Images attached)

A link to look at the results in Web GL

http://vdcdemo.aareas.com/vdc3d/modelpreview.html?modelname=3625C4_Providence%20Tradition_03_CORONA_003-WEBGL%20&username=mikek&date=7-11-2017&version=V1

https://playcanv.as/b/8ypVaNs5/



If we are doing something wrong please let us know, any solution would be great :)
Mike K