TextShader draw your text as ImageEffect (with fragment shader). This effect should be used for a debug.
effect.DrawText("Your Text", posX, posY, size, color);
Set your text and the parameters in viewport(uv) space.
- Valid characters are AsciiCode number 32 ~ 126.
\
(back slash) becomes line-break.
You can import this asset from UnityPackage.
You have to import following assets to use this asset.