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Png is created but it is blank about tga HOT 5 CLOSED

steel1990 avatar steel1990 commented on August 22, 2024
Png is created but it is blank

from tga.

Comments (5)

steel1990 avatar steel1990 commented on August 22, 2024 1

Please update to the new version, I fixed this issue.

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steel1990 avatar steel1990 commented on August 22, 2024

Can you list your code and the tga file?

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Ashish117 avatar Ashish117 commented on August 22, 2024
var TGA = require("tga");
const maps = "./maps/";
var fs = require("fs");
var PNG = require("pngjs").PNG;
// Delete ds store before start
fs.readdir(maps, function (err, filenames) {
  filenames.forEach(function (filename) {
    console.log(maps + filename); 
    var tga = new TGA(fs.readFileSync(maps + filename));
    var png = new PNG({
      width: tga.width,
      height: tga.height,
    });
    png.data = tga.pixels;
    png.pack().pipe(fs.createWriteStream(`${maps}${filename}.png`));
  });
});

Tga link

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steel1990 avatar steel1990 commented on August 22, 2024

You tga image's alpha channel are all 0, so the output png file is empty!
Maybe you can reset the alpha channel as 255 by the code below:

for (var i = 3; i < tga.pixels.length; i += 4) {
    // change alpha channel as 255
    tga.pixels[i] = 255;
}

from tga.

Ashish117 avatar Ashish117 commented on August 22, 2024

You tga image's alpha channel are all 0, so the output png file is empty!
Maybe you can reset the alpha channel as 255 by the code below:

for (var i = 3; i < tga.pixels.length; i += 4) {
    // change alpha channel as 255
    tga.pixels[i] = 255;
}

The image is flipped

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Related Issues (3)

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