Unity - How to change sprite size to fixed resoltion in code-CodePudding

I have a set of sprites with different resolutions and aspect ratios. I want to create new sprites based on the original sprites but with a fixed 20 x 20 resolution.

When working with bitmaps, what I did was this: Bitmap newImage = new Bitmap(oldImage, new Size(20, 20));

But Unity's Sprites don't have any constructors. How can I do this?

CodePudding user response：

Not sure how exactly you want to resize an image (make it smaller, or cut the part of it), but you can play around with Sprite.Create method

CodePudding user response：

There are 2 ways to create Sprites from image or original sprite. from image code below..

string url = "";//image url;
WWW image = new WWW(url);
yield return image;
Texture2D texture = new Texture2D(1, 1);
image.LoadImageIntoTexture(texture);
Sprite newSprite = Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), new Vector2(0, 0), 1);
RectTransform rt = newSprite.GetComponent<RectTransform>();
rt.sizeDelta = new Vector2(20, 20);//make 20px * 20px sprite

clone sprite code below..

Sprite cloneSprite = Instantiate(originalSprite);
RectTransform rt = cloneSprite.GetComponent<RectTransform>();
rt.sizeDelta = new Vector2(20, 20);//make 20px * 20px sprite

I hope it will work on your project.