hoffstadt / hoffstadt/DearPyGui

MTLTextureDescriptor failed assertion when trying to use dpg.font_registry()

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#2,354 2 comments 1 reaction 0 assignees View on GitHub
state: pending type: bug
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Description

## Version of Dear PyGui

Version: 1.11.1
Operating System: macOs 14.5

## My Issue/Question

Cannot use custom fonts - any attempt to include dpg.font_registry() into the code leads to crash with message:

-[MTLTextureDescriptorInternal validateWithDevice:]:1357: failed assertion `Texture Descriptor Validation
MTLTextureDescriptor has width of zero.
MTLTextureDescriptor has height of zero.

## To Reproduce

Steps to reproduce the behavior:
1. save example code from "Font Loading Instructions" https://dearpygui.readthedocs.io/en/latest/documentation/fonts.html input python file. Place file NotoSerifCJKjp-Medium.otf at same path.
2. run that python file
3. See error

## Expected behavior

Expected normal usage.

```python
import dearpygui.dearpygui as dpg

dpg.create_context()

# add a font registry
with dpg.font_registry():
# first argument ids the path to the .ttf or .otf file
default_font = dpg.add_font("NotoSerifCJKjp-Medium.otf", 20)
second_font = dpg.add_font("NotoSerifCJKjp-Medium.otf", 10)

with dpg.window(label="Font Example", height=200, width=200):
dpg.add_button(label="Default font")
b2 = dpg.add_button(label="Secondary font")
dpg.add_button(label="default")

# set font of specific widget
dpg.bind_font(default_font)
dpg.bind_item_font(b2, second_font)

dpg.show_font_manager()

dpg.create_viewport(title='Custom Title', width=800, height=600)
dpg.setup_dearpygui()
dpg.show_viewport()
dpg.start_dearpygui()
dpg.destroy_context()
```

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