joshuaskelly / sprytile Goto Github PK

Summary

Add alpha clip transparency to unlit shader. The graph should look similar to the below:

Notes

1. The node setup is done by the SPRYTILE_OT_SetupMaterial operator.
2. The material blend mode needs to be set to Alpha Clip.

Summary

Blender 2.80 removed several methods from the bgl module and has broken how Sprytile draws GUI elements in the 3D viewport.

Repro

Clicking on any of the Sprytile tools (Fill, Paint, Build) will cause the GUI to be drawn in the 3D viewport. This will crash Blender 2.80 as several module methods are missing entirely.

Sprytile GUI in Blender 2.79

• Palette of selectable tiles in viewport.
• Preview of tile to be placed (white outline + alpha transparency) in viewport.
• Preview grid of where tiles will be placed (not pictured above).

Notes

1. The usage of this module is mostly isolated to sprytile_gui.py except a single reference in sprytile_utils.py.

2. The best practices going forward is to avoid using OpenGL directly (via the bgl module) and prefer the usage of the gpu module.

3. Blender 2.80 prefers addon panels to live in the Properties panel on the right. Sprytile used to live in the Tools panel on the left. Placement of the tile palette might need more thought.

References

• Blender 2.80 Draw API Release Notes
• Blender 2.80 GPU Module Documentation
• Blender 2.80 BGL Module Documentation