Changing the image DPI from 144 to 72 in Preview - Tools - Adjust Size also worked for me. Thank you.
Iād like to fix the image using your method - but Iām 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 āSaveā or āExportā as the final step?
āSaveā wants to save it as an xcf file - so I have been trying āExportā instead, but there is no checkbox for āAlpha Channelā.
Yes, you definitely want Export, not Save. Make sure you save the file as a .png and that should work for you.
This worked for me.
Bit annoying that itās still in the latest book, which was just refreshed this week.
I had same issue as everyone else. Resizing 72dpi didnāt 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 = āBackground_Diffuseā ā¦does anyone have an idea when a formal solution will be corrected in book?
I have the solution :
drag the file Background_Diffuse.png to Assets.xcassets and in the function SetupScene() add the code : scnScene.background.contents = āBackground_Diffuseā
Thatās all