Changing Blend Modes for 2.5D textures

[Brandondorf9999]

This is the tutorial I want to share to all you smash hackers. It has come to the point where blend modes should become customized to all models with alpha channel used. The blending entries are like the blend info as in the BMD models, but ends with 0F on the 4 byte entry for most files and next to the entry of 03 07 00 07.

Tools Needed:

1. Hex Editor
2. Dolphin Emulator (needed to preview the difference)
3. GC-Rebuilder (to replace and export dat/usd files)

The entry on dat and usd files follows this:

The first byte is the blend equation, the 2nd is the source blend and the third is the destination (which would provide the transparency).

Here are a list of transparency blending modes for these 3 entries:

Blend Equations:

1. Add
2. Subtract
3. Reverse Subtract
4. Min
5. Max

Source & Destination Blend modes:

1. Zero
2. One
3. Source Color
4. Inverse Source Color
5. Source Alpha
6. Inverse Source Alpha
7. Destination Alpha
8. Inverse Destination Alpha

Here are 4 example photos of the altered blending for the interfaces in-game:

I have not found the blending for 3D models and effects and is not editable yet at this point.

 

[zankyou]

I am very curious in how you found that structure. Seems to be that last reference by the material structure

 

[Ed94]

So dam cool.

 

[Brandondorf9999]

I am very curious in how you found that structure. Seems to be that last reference by the material structure

Like with the blend info for bmd and bdl models, the similar structure is also used for these data files.

 

[zankyou]

Like with the blend info for bmd and bdl models, the similar structure is also used for these data files.

Oh then maybe you could explain some flags in the material structure I dont understand.

 

[DRGN]

Or some of these unknowns in the Texture structure?:

 

[Brandondorf9999]

Or some of these unknowns in the Texture structure?:

View attachment 97634

That structure on an unknown is just plain transparency. The blend stucture follows in a four byte entry aside from the texture tree like this for example "01 04 05 0F" or "01 04 05 05". The add blend equation for every normal and non-subtractive models are 01, not 03.

 

[Brandondorf9999]

Oh then maybe you could explain some flags in the material structure I dont understand.

The first flag is the blend equation that does the operations to add, subtract or another type of blend. The 2nd flag is the source blending that handles the transparency on the foreground and the 3rd one blends it through the background. If you're unsatisfied with it, you can google "blend function" on how it works or you could use this tool at Anders Riggelsen's website.

 

[Brandondorf9999]

I think most other transparency objects are handled by code.

 

[DRGN]

That structure on an unknown is just plain transparency.

Which "unknown" are you referring to?

I was wondering if you knew what any of the unknowns are in the Texture Structure (the unknowns listed in the image I posted). They can also be seen here.


What zankyou was asking was whether you might know what other unknown values/flags are in the Material Structure. Apparently (or according to zankyou), what you've found is at 0x14 in the Material Structure?

 

[zankyou]

Finally tried incoporating this into my stage imports.
I dont really know anything about this but just going off of pattern recognition, I believe the source and destination blend flags start at 0 and not 1. So subtract one for the values in the OP.
Again I dont really know anything about this but Ive had success with this correction in my model hacks to take with that as you will.