koobas.hobune.stream
One Texture2D from multiple others
Hi guys!, I've been struggling to find a proper way to create a new Texture2D based on multiple others.
The Idea is that I dynamically load up a list of Textures2D form a certain folder (that's done). so I have this list of textures. What I want to do is to create a new Texture that has every texture on the list in such a way that it has 1 column and X rows where X is the count of the list.
That way I'll end up having one texture with every texture of the list in 1 column and I can use this to create a particles system.
So the problem is generating this master texture.
Can anybody help me do this?. Thanks!
Hello guys, for those who are following this question, I managed to solve this. It a little tricky though.
I'll leave you here the method that I use to create a master image. This is, it takes all pngs (you can modify this) files on the parameters path and merge them into one master png inside a folder called "output". The png files dont have to be the same width or height, but I recommend them to be. The resoulting image will be a png with 1 column and X rows. Its heght will be the sum of all the heights and the width will be the larger of them all. [See the pic]
I hope this helps.
using System.Collections.Generic;
using System.Drawing;
public static Texture2D MergeImages(string path)
{
string[] filesStrings = null;
List<Image> images = new List<Image>();
Bitmap outputImage = null;
Texture2D outputtexture = null;
if (path != null && path != "" && path != " " && System.IO.Directory.Exists(path))
{
filesStrings = System.IO.Directory.GetFiles(path, "*.png");
Debug.Log(filesStrings.Length);
}
if (filesStrings.Length > 0)
{
int outputwidth = 0;
int outputheight = 0;
foreach (string filestring in filesStrings)
{
Image imageToAdd = Image.FromFile(filestring);
images.Add(imageToAdd);
outputheight += imageToAdd.Height;
if (imageToAdd.Width > outputwidth)
outputwidth = imageToAdd.Width;
}
outputImage = new Bitmap(outputwidth, outputheight, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
using (System.Drawing.Graphics graphics = (System.Drawing.Graphics.FromImage(outputImage)))
{
graphics.DrawImage(images[0], new Rectangle(new Point(), images[0].Size),
new Rectangle(new Point(), images[0].Size), GraphicsUnit.Pixel);
}
int heightAcum = images[0].Height;
for (int i = 1; i < images.Count; i++)
{
using (System.Drawing.Graphics graphics = (System.Drawing.Graphics.FromImage(outputImage)))
{
graphics.DrawImage(images[i], new Rectangle(new Point(0, heightAcum), images[i].Size),
new Rectangle(new Point(), images[i].Size), GraphicsUnit.Pixel);
}
heightAcum += images[i].Height;
}
path = path + "/Output";
if (System.IO.Directory.Exists(path))
{
System.IO.Directory.Delete(path, true);
System.IO.Directory.CreateDirectory(path);
}
else
{
System.IO.Directory.CreateDirectory(path);
}
outputImage.Save(path + "/particlesMerge.png", System.Drawing.Imaging.ImageFormat.Png);
outputtexture = LoadTexture(path)[0];
}
return outputtexture;
}
