53 lines
2.1 KiB
C#
53 lines
2.1 KiB
C#
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// THIRD_PARTY
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// SOURCE:
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// https://forum.unity.com/threads/generating-sprites-dynamically-from-png-or-jpeg-files-in-c.343735/
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using UnityEngine;
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using System.Collections;
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using System.IO;
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public static class ImageToSprite {
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//Static class instead of _instance
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// Usage from any other script:
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// MySprite = IMG2Sprite.LoadNewSprite(FilePath, [PixelsPerUnit (optional)], [spriteType(optional)])
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public static Sprite LoadNewSprite(string FilePath, float PixelsPerUnit = 100.0f, SpriteMeshType spriteType = SpriteMeshType.FullRect) {
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// Load a PNG or JPG image from disk to a Texture2D, assign this texture to a new sprite and return its reference
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Texture2D SpriteTexture = LoadTexture(FilePath);
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if (SpriteTexture == null) {
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Debug.LogError("Failed to load texture from " + FilePath);
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return null;
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}
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Sprite NewSprite = Sprite.Create(SpriteTexture, new Rect(0, 0, SpriteTexture.width, SpriteTexture.height), new Vector2(0, 0), PixelsPerUnit, 0, spriteType);
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return NewSprite;
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}
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public static Sprite ConvertTextureToSprite(Texture2D texture, float PixelsPerUnit = 32.0f, SpriteMeshType spriteType = SpriteMeshType.FullRect) {
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// Converts a Texture2D to a sprite, assign this texture to a new sprite and return its reference
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Sprite NewSprite = Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), new Vector2(0, 0), PixelsPerUnit, 0, spriteType);
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return NewSprite;
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}
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public static Texture2D LoadTexture(string FilePath) {
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// Load a PNG or JPG file from disk to a Texture2D
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// Returns null if load fails
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Texture2D Tex2D;
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byte[] FileData;
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if (File.Exists(FilePath)) {
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FileData = File.ReadAllBytes(FilePath);
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Tex2D = new Texture2D(2, 2); // Create new "empty" texture
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if (Tex2D.LoadImage(FileData)) // Load the imagedata into the texture (size is set automatically)
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return Tex2D; // If data = readable -> return texture
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}
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return null; // Return null if load failed
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}
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}
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