Setting size of plane to texture's pixel size

Questions & Answers
1

Suppose my texture size is at 200x50px. I intend to map this texture onto a plane as an interactable component. But the size of the plane is always either larger or smaller than the texture. The texture will stretch and become pixelated. I want to set the size of the plane to have the same size as the texture. But the scaling factor for the plane is in Unity’s own unit.

How can I set the size of a plane to be exactly the pixel size of the texture?

2

You can set the plane’s scale to the same aspect of the image (200, 50, or 20,5, or 4,1) but if you want pixel-for-pixel accuracy, consider using a GUITexture or you’ll have to convert world to screen coordinates Unity - Scripting API: Camera.WorldToScreenPoint