Forum - Tips & Tricks - TRANSPARENT MATERIALS IN FBX FILES - Messages

Message from PatMarrNC

Thu, 17 Nov 2016 20:48:21 GMT

looking good, Primaveranz! There's no stopping you now! You can do transparency, FBX and post images in the forum, all in the same day!

Message from primaveranz

Thu, 17 Nov 2016 20:17:43 GMT

This is what I was originally trying to post:-

Message from PatMarrNC

Thu, 17 Nov 2016 19:54:04 GMT

awesome! What did you have to do to make it work?

oh.. we must have been typing at the same time.... (I use Firefox too. )

Isn't it great when some problem that's been kicking your butt finally gets resolved??
(Primaveranz for mogul!!)

----------------------------------------------------
edited by PatMarrNC on 17/11/2016

Message from primaveranz

Thu, 17 Nov 2016 19:52:54 GMT

ikes wrote:

Or, it could be the browser you're using, I have firefox.

Quite right, Chrome and Opera don't work but IE11 did

Message from primaveranz

Thu, 17 Nov 2016 19:51:16 GMT

Message from ikes

Thu, 17 Nov 2016 19:50:45 GMT

primaveranz wrote:

ikes wrote:

You can also make a screenshot and paste it here.

Ha ha! No I can't

You may not be a Mogul yet Ikes, but the software is able to calculate that, with your skills you should be. So it is carefully written to pre-empt that ascension (I am a former programmer - I have great faith in coders). It is also smart enough to know I never will be, hence no "Pastability" for me

haha, it's a conspiracy I think.

Or, it could be the browser you're using, I have firefox.

Message from primaveranz

Thu, 17 Nov 2016 19:47:49 GMT

ikes wrote:

You can also make a screenshot and paste it here.

Message from ikes

Thu, 17 Nov 2016 19:40:38 GMT

You can also make a screenshot and paste it here.

Message from ikes

Thu, 17 Nov 2016 19:38:11 GMT

primaveranz wrote:

Two things I get from that.
Pat is the only one of you who can actually Paste an image straight in to a post and, when I click the HTML button I don't see any HTML, the text just changes format slightly. I just tried with Chrome and Opera, same thing. Makes me more suspicious that non-Mogul logins have different capabilities on the forum from us plebs

It's no biggie though, as I can't upload videos either because I don't use YouTube.

I just copy and pasted an image from my image editor and it works with me.

Message from primaveranz

Thu, 17 Nov 2016 19:26:31 GMT

Message from ikes

Thu, 17 Nov 2016 17:23:24 GMT

This is the syntax in html:

[img]Link_to_image.jpg[/img]

Message from fazz68

Thu, 17 Nov 2016 15:59:49 GMT

yep every forum ive ever post a pic in uses the img inside the square brackets at the start and /img in the square brackets at the end. even if you are hotlinking a picture from the interwebs (which i dont do coz 9 times out of 10 whatever pic you are hotlinking usually shows up as a do not hotlink our pic image) so uploading to imgur is easier for me.

Message from PatMarrNC

Thu, 17 Nov 2016 15:30:27 GMT

looking at the code in each of these messages, I see that primaveranz link used the URL tag while your message used the IMG tag... the URL tag does not include the preview, just a hot link, while the IMG tage actually inserts the image.

you can manually enter these tags between square brackets. An embedded image link would look like this:

where I type LBRACKET, I mean this left square bracket character: ""

LBRACKET img RBRACKET insert URL here LBRACKET /img RBRACKET

an easier way is to type the url, hilight it, then click the IMAGE icon in the toolbar above the message. (the 6th icon from the left, the one immediately before the color pallet). That will automatically put the IMG tags around the url

Message from fazz68

Thu, 17 Nov 2016 14:45:06 GMT

how to get a photo/picture into the forum.. upload it to imgur or photobucket or whatever host you use. copy the url or whatever code they provide for that pic and paste it in your post.

in the case of imgur it would be this one...

edited by fazz68 on 17/11/2016

Message from PatMarrNC

Thu, 17 Nov 2016 14:32:14 GMT

interesting. Anybody else have any ideas on this? All of us together are smarter than any of us individually...somebody out there must know what key steps are required to get a photo into a forum message.

Maybe what messed it up was SELECT ALL. Did you try just clicking to hilight one image, then use CTRL-C (Not CTRL-A) to copy it?

Message from primaveranz

Thu, 17 Nov 2016 02:17:12 GMT

I opened each of them in Paint.Net, selected all, copied and then pasted into the message. Nothing happened though.
I tried with a couple of different browsers as well, PNGs as well as JPGs and I have just tried again in this post on my work PC with a different picture - same result.
Maybe only the favoured few Moguls can paste pictures
edited by primaveranz on 17/11/2016

Message from PatMarrNC

Thu, 17 Nov 2016 00:55:40 GMT

how did you copy it? It doesn't work by copying the file itself, it has to be open in a program like Windows paint, then you click on the image to select it, and CTRL-C to copy...

then in your forum message, CTRL-V to paste, and you get an image as follows:

Message from primaveranz

Wed, 16 Nov 2016 17:44:02 GMT

Couldn't have done it without you two guys
It makes life a hell of a lot easier for me as I a very comfortable with Milkshape having used it for years and I don't have the time to learn Blender (again!) - I'd rather be making movies.

I tried pasting the two jpgs into this post but no luck again
edited by primaveranz on 16/11/2016
edited by primaveranz on 16/11/2016

Message from PatMarrNC

Wed, 16 Nov 2016 11:52:47 GMT

Primaveranz! You got it working!! WOO HOO! That's awesome! I love it when people are free to share ideas, everybody benefits!

Regarding the addition of photos to forum messages: This is one of the few forums that doesn't require you to link to a URL... you can simply copy-paste photos directly into the message. So if you have a way to open the graphics and hilite-copy it, then its just a matter of clicking inside the message and PASTE!

PS... nice looking model! Great texturing !

------------------------------------------------
edited by PatMarrNC on 16/11/2016

Message from primaveranz

Wed, 16 Nov 2016 09:01:20 GMT

So apparently you can't link to pics on a Google drive from the forum and see a preview?

https://drive.google.com/file/d/0Bz7oh4SWxJEFLUgtRjE4LS1SOTQ/view

Message from primaveranz

Wed, 16 Nov 2016 05:25:07 GMT

For milkshape users.
Thanks to Pat and Rodrisilva, I now have a workflow from Milkshape into Muvizu with transparencies.
I create a model with separate transparent and opaque materials.
Export to Wavefront OBJ format into a folder.
Edit the .MTL file as described by Pat above.
Import the OBJ into Blender (DON"T PANIC!)
Export from Blender as FBX.
Import to Muvizu.
Et voila!

This way if you don't have the inclination to learn Blender all you use it for is to export the FBX. Not sure why the broken link icon is showing below, if you click it you should see the image.

edited by primaveranz on 16/11/2016

Message from ziggy72

Tue, 15 Nov 2016 23:35:17 GMT

Rodrisilva wrote:

ziggy72 wrote:

That's a great little video Rodrisilva, but the model at the end is single sided - how can you avoid that?

One way is to duplicate mesh and flip normals direction on second mesh. Not necessariy all model but only transparent area car section.

You know, I had to choose a simple model for this tuto, not the ideal one.

Makes sense, thanks

Message from primaveranz

Tue, 15 Nov 2016 23:02:52 GMT

I checked with Digimania and Voxelise offers no solution to the Transparency issue.

Message from Rodrisilva

Tue, 15 Nov 2016 22:44:06 GMT

ziggy72 wrote:

That's a great little video Rodrisilva, but the model at the end is single sided - how can you avoid that?

Message from ziggy72

Tue, 15 Nov 2016 20:10:54 GMT

That's a great little video Rodrisilva, but the model at the end is single sided - how can you avoid that?

Message from urbanlamb

Tue, 15 Nov 2016 01:50:51 GMT

Rodrisilva wrote:

Hi guys

After many complaints about Muvizu FBX importing drawbacks I decided to make a rapid tuto about blender model texturing and FBX exporting using transparency (inside same mesh model).
For those who need help or are confused, Blender remains a wonderful free software. Nothing in life will be easy if we do not try harder.

Indeed I just made something (i have not been using muvizu for awhile it would not install on my system for some reason, but I tried tried again and it worked this time) and it worked flawlessly. I was starting to think that something had broken in the fbx export process in blender, but indeed it actually worked better then previously.

I hope your tutorial helps. I dont know if people dont understand me or what, but I have tried explaining this and it seemed not to help.
edited by urbanlamb on 15/11/2016

Message from Rodrisilva

Tue, 15 Nov 2016 01:02:08 GMT

Message from drewi

Sun, 23 Oct 2016 10:05:46 GMT

great information re mtl edits Pat, thanks to you and Ikes for sharing.

Message from PatMarrNC

Sun, 23 Oct 2016 09:13:14 GMT

I discovered tonight that when you add the d parameter to a .mtl material file, and assign any value to it that is less than 1.0, any FBX made from it will have directable/keyframable opacity! The upshot is that you can make objects fade in and out incrementally instead of just completely disappearing or appearing all at once. Imagine a floating ghostly skull or Cheshire Cat that slowly appears or disappears in a scene!

Message from PatMarrNC

Tue, 18 Oct 2016 17:26:38 GMT

another thing that affects color/shadow artifacts on models is whether or not the object is UVMapped. I've noticed that even if an object requires no texture and you just want it to be a solid color that can be changed in the object's parameters, UVmapping it makes a difference in color integrity.

Without UVMapping, color gets applied from one direction.. and in the same sense that a texture gets skewed when you apply it to an object without first UVMapping it, I have to think that color gets distorted too.

Whether that explanation is technically correct is a moot point. UVMapping solid colors seems to help my models. Your mileage may vary... but it's something to look at if you're getting color anomalies.

Message from PatMarrNC

Sun, 16 Oct 2016 18:43:37 GMT

Once you go down the dark side of manually editing your MTL files, there are lots of things to do. The wavefront OBJ material spec is fairly comprehensive and worth reading.

http://paulbourke.net/dataformats/mtl/

One thing that can make a difference in Muvizu is the illum parameter. I started looking at this because I get weird color artifacts on my models sometimes in Muvizu./ The illum param can help compensate when this happens.

 Illumination:  
 syntax = illum #  (# is in the range 1-10, defined below)     
 ------------------------------------------------------------------------ 
    
 0	Color on and Ambient off   
  
 1	Color on and Ambient on   
  
 2	Highlight on   
  
 3	Reflection on and Ray trace on  
   
 4	Transparency: Glass on  		 
         Reflection: Ray trace on   
  
 5	Reflection: Fresnel on and Ray trace on   
  
 6	Transparency: Refraction on  		 
           Reflection: Fresnel off and Ray trace on 
   
 7	Transparency: Refraction on  		 
           Reflection: Fresnel on and Ray trace on   
  
 8	Reflection on and Ray trace off   
  
 9	Transparency: Glass on  		 
           Reflection: Ray trace off   
  
 10	Casts shadows onto invisible surfaces   
  
 -------------------------------------------------- 
  
 If you start getting light artifacts, try illum 0. It turns off most of the things that make the color deviate from its base color. It also makes it more boring, so experiment.

==========================
edited by PatMarrNC on 16/10/2016

Message from ziggy72

Sun, 09 Oct 2016 15:17:08 GMT

Ah! This makes sense - not every program handles the MTL files the same way, but I didn't realise they were actually sabotaging the materials! Congrats on working it out, and thanks again to Ikes for his assistance.

Message from PatMarrNC

Sun, 09 Oct 2016 07:07:14 GMT

This is one of those topics that has driven many of us to the brink of insanity... and thanks to IKES, I may have new information for that will help some of those who haven't been able to get transparent material (such as glass) into their FBX files.

When I saw that IKES had uploaded cars with glass, I asked him how he did it. He told me step by step... and I followed his instructions... but it didn't work! So Ikes sent me an OBJ and its MTL file to compare with mine,

Much to my surprise, I discovered that my modeling program stripped out the information needed to get the transparency working!! I manually entered the missing information into my MTL file, converted it to FBX, and whattaya know?? It had transparency!!

After reading some threads and seeing that guys who use Milkshape have a time with this, I discovered that Milkshape does the same thing! It strips out a key part of the material description that allows Colors (not textures, they're handled differently... and Milkshape doesn't strip that out... which is why you can get transparency when using textures)

Anyway, here are two examples of an MTL file... one showing what many of our Modeling programs generates, and then an edited version that actually works:

newmtl blue
Ka 0.8 0.8 0.8
Kd 0 0 1
Ks 0 0 0
Ns 64

newmtl banjo
Ka 0.611765 0.611765 0.611765
Kd 1 1 1
Ks 1 1 1
Ns 0
map_Kd /home/pat/Pictures/BANJO.png

Notice that the blue material (a color) has one less line than the banjo material, which uses a texture file. With a texture file, if there are alpha areas in the texture, the alpha is inherited from the image.

The first material only shows information for Ambient (Ka) Diffuse (Kd) Specular (Ks) and shininess (Ns). For colors, Alpha is declared as a decimal percentage after the letter "d". With that in mind, here's the edited version that works:

newmtl blue
Ka 0.8 0.8 0.8
Kd 0 0 1
Ks 0 0 0
Ns 64
d 0.20
illum 2

Since "d" is a percentage of opacity:
d 0.0 = totally clear
d 1.0 = totally opaque (solid)
d 0.2 = 20% opaque (or 80% clear)

In conclusion.. if you've been having a fit trying to get transparency into your FBX files, start by looking at the MTL file that gets generated along with your OBJ file. If it lacks the "d" parameter, that may be your problem.
edited by PatMarrNC on 09/10/2016