Error in latest book? (Chapter 2: Nodes) not same in xCode

[jsd]

Changing the image DPI from 144 to 72 in Preview - Tools - Adjust Size also worked for me. Thank you.

[strifecrafter]

I’d like to fix the image using your method - but I’m rather new at using GIMP.

As soon as I open the file - GIMP says it has an embedded color profile and offers to convert it to sRGB.
Accept or Pass?

I skipped converting and followed your instruction to add the alpha channel.
Next - switch the image mode to RGB.
Now - did you mean “Save” or “Export” as the final step?
“Save” wants to save it as an xcf file - so I have been trying “Export” instead, but there is no checkbox for “Alpha Channel”.

[davepilot]

Yes, you definitely want Export, not Save. Make sure you save the file as a .png and that should work for you.

[mattstone]

This worked for me.

Bit annoying that it’s still in the latest book, which was just refreshed this week.

[m_michal]

I had same issue as everyone else. Resizing 72dpi didn’t seem to do the trick or adding adding alpha channel. The only thing that worked for me was dragging image to assets.xcassets and replacing the line with scnScene.background.contents = “Background_Diffuse” …does anyone have an idea when a formal solution will be corrected in book?

[jplozach]

I have the solution :
drag the file Background_Diffuse.png to Assets.xcassets and in the function SetupScene() add the code : scnScene.background.contents = “Background_Diffuse”

That’s all