I’ve been using Blender for about a year now so I’m familiar with most of the functions. I have spent most of my time rendering images with transparent backgrounds, but I’m experiencing a really odd problem with my current project: for some reason, Blender’s adding a black background to my renders.
This could be due to composition, but I put it in this category because it could be one of the other.
I am using Blender Render.
I know the basics of setting the export image type to .PNG, selecting RGBA, and setting the Shading Alpha to “Transparent”. When I started experiencing problems I unchecked “sky” from the “include” sub-section in the Layers section. This may be important but perhaps not.
In the compositor, I checked all of the preview windows for my render layers inputs, and all of the backgrounds are transparent. Even if I trace everything to the last step prior to “pluging” it into the composite node, the background is still transparent, yet the output yields a solid black background… I am really confused!!!
One last detail that I think might help - another issue - is when I add stars. When I do, Blender adds then onto a transparent background (so it only renders the stars), and then for some reason in compositing places them over the model. The two situations may be linked.