libgdx TextureRegion到Pixmap [英] libgdx TextureRegion to Pixmap

问题描述

如何从TextureRegion或Sprite创建Pixmap?我需要这样做，以便更改某些像素的颜色，然后从Pixmap创建新的Texture(在加载屏幕期间).

How do I create Pixmap from TextureRegion or from Sprite? I need this in order to change color of some pixels and then create new Texture from Pixmap (during loading screen).

推荐答案

Texture texture = textureRegion.getTexture();
if (!texture.getTextureData().isPrepared()) {
    texture.getTextureData().prepare();
}
Pixmap pixmap = texture.getTextureData().consumePixmap();

如果只需要该纹理的一部分(该区域)，则必须进行一些手动处理:

If you want only a part of that texture (the region), then you'll have to do some manual processing:

for (int x = 0; x < textureRegion.getRegionWidth(); x++) {
    for (int y = 0; y < textureRegion.getRegionHeight(); y++) {
        int colorInt = pixmap.getPixel(textureRegion.getRegionX() + x, textureRegion.getRegionY() + y);
        // you could now draw that color at (x, y) of another pixmap of the size (regionWidth, regionHeight)
    }
}

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