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A featured article by LearnMMD's Mae Blythe!How can I use Blender to make a model for MMD? How do I resize my Blender model as I import it into PMXE? How do I use Decimate?

Making Your First Model Part 14
FINALLY Importing your Model into PMXe!

The original idea for this series was just explaining my experience with making my first model. I took that and ran with it, replacing that idea with telling people how to make a model. However, in this section, I ran into a lot of problems. Because of that, this section reads less like a tutorial and more like the frustrated diary of an angsty teen. If you don’t like reading about other people being frustrated, scroll down to the bottom to see a simple graphic that explains the basic process of exporting a model from Blender to PMXe.


Yep! There’s nothing more that I can think of to tell you to do without popping it into PMXe.

While you can do bones and weight them in Blender, I prefer doing it in PMXe.

I spent a few hours trying to make UV maps. If they get ‘rekt’ as the kids these days say . . . I’ll make sure to tell you so that you don’t make my mistakes!

Note – this is LearnMMD. Explaining how to download and set up PMXe here seems a little silly when there’s an entire section of the download page dedicated to it!

So, let’s open up the blend file in Blender. Before starting, let’s apply all of the modifiers. You have to do it in Object mode, and you should do them in the order that you added them.

Sometimes you can import without removing the modifiers and it works just fine . . . other times, it is a hot mess.

Next, let’s open up MMD_Tools.

Now, let’s create a model! The button you’ll press should be the first button when you open up the “mmd_tools” tab of the toolbar.

After the base of the model is created, select everything and mash “Attach Meshes to Model”.

. . .


Take a deep breath.

Don’t be a big dummy like me – select the entire mesh before mashing “Create Model” . . . otherwise . . .

There’s a good chance that your model was not nice to you and did not attach herself to the model.

In that case, first wildly click around in hope that that does something. If it doesn’t, check to see if any part of the rig was somehow put on another layer. Click madly again until you hopefully see any sign that it worked.

A tiny sign that it worked

A tiny sign that it worked!

Now . . . I realized this a long time ago and knew I’d have to fix it . . .

size comparison of Meiko and Camila, the MMD model I am creating, making from scratch in Blender.

She’s tiny!  But this is an easy fix. Meiko is 515 pixels tall in this screenshot. Camila is an adorable 228.

When you open models in PMXe, it asks you what scale you want the model to be. We just need to tell it to make Camila 2.26 times larger!

We enlarged my new MMD model. Camila, to the correct size.

Now . . I adore this model. I adore how smooth and shiny it is . . . but take a look here.

PMXe and MMD taking up way too much memory

PMXe and MMD taking up way too much memory!

So, I love this model. I love how beautiful and smooth she is. I can’t rig her because I hate stressing out my poor little computer. So, if there is anyone out there who would like to rig her, I’m leaving her right here:

Download unrigged model

Click the image to go to my dA page where you can download my un-rigged Camila model.

Now, let me tell you about “Decimate”. The Decimate modifier is my new best friend. Sometimes, you need a subsurface modifier for anything to look right. Sometimes, you’ve already applied subsurface modifier and need to get your poly count down.

Decimate is your friend!

The Decimate options in Blender...

As of now, the only option that gives pretty ok results seems to be “collapse”.

One note is that you cannot see the changes in edit mode, but you can watch the mesh transform in Object Mode.

Now that my poor baby is Decimated and has about as many faces as the Luka model that comes with MMD, let’s get her exported again.

PMXe Memory Usage with Decimated Model

PMXe Memory Usage with Decimated Model

Much better!

Amazingly, all of my UV maps went unscathed! Of course, I’ll make sure to double check before I spend hours hand-painting a texture.

Now . . . let’s answer the big question from the previous part . . . Will it AO Bake?!

In the words of Mama Ru . . .

Yaaaaasss Queen!

AO Map of Dress

AO Map of Dress


So, I’m sorry to say that this part will be unusually short . . . because I had some unusual problems.

The biggest problem was just my ambition. I want to make perfect, realistic models. Both Blender, PMXe, and MMD slapped me on the wrist for that. Blender refused to bake AO maps, PMXe lagged, and MMD almost threatened to crash.

If you didn’t make an ambitious model to begin with, then this entire page could be reduced to this graphic :

Simple Export Model from Blender Graphic

Tune in next time when we add bones in PMXe!

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