[Bf-committers] Attempt on duplicating modifier

[Aaron Carlisle]

Hi Edgard,

You may want to look at
https://github.com/ideasman42/blender_patch_templates/tree/master/patches

Hope this helps,

Aaron Carlisle

On Wed, Oct 26, 2016 at 4:34 PM, Edgard Damiani <edamiani at gmail.com> wrote:

> Hi everyone,
>
> It's in my plans using Blender as a prototyping platform for my master's
> thesis, so I decided to start my tests by duplicating an existing modifier
> and changing its code. I've chosen the Skin Modifier, since it's the
> closest I could find to what I have in mind, and took these steps to
> duplicate it:
>
> - Duplicated the MOD_skin.c file and renamed it to MOD_skin2.c;
> - Inside MOD_skin2.c, I renamed modifierType_Skin to modifierType_Skin2,
> and changed its first parameter accordingly ("Skin2");
> - Added "eModifierType_Skin2 = 53" to the end of ModifierType in
> DNA_modifier_types.h (53 being the first vacant number);
> - Declared modifierType_Skin2 inside MOD_modifiertypes.h;
> - Added INIT_TYPE(Skin2) inside MOD_util.c;
>
> With these steps, the code compiles without issues, but when I run Blender,
> the recently-created modifier doesn't appear in the Modifiers list. Then, I
> realized that I should somehow add it to the UI through Python, but the
> only file I've found that had a connection with the modifiers was
> properties_data_modifier.py, which lists the user interface code for each
> modifier. I tried to create a SKIN2 function inside this file by
> duplicating the SKIN function, but the whole Python interface breaks down
> when I do it.
>
> Is there anything else I should do in order to correctly show this Skin2
> modifier inside Blender's Modifiers list?
>
>
> Thanks and best regards,
> Edgard
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