[Question] Usage of CubeMap

[Kibouo]

Sorry, new to graphical programming. I'm confused over the usage of a cubemap (when constructing an ImmutableImage):

• I assume the image file used as texture has to include all sides of the cube in 1 file? Like an unfolded cube? (such as these)
• While researching I stumbled upon #260 where Tomaka mentions that cubemaps are equal to a texture 2D. It just has 6 layers. What are layers? DDG wasn't really helpfull.
• Lastly, what information does the size parameter of Dimensions::Cubemap hold? Rather, what does it want to know the size of?

Thanks in advance!

[AustinJ235]

The data for the buffer is the image data of six images appended to each other in the order of: left, right, bottom, top, back, and front (at least that is the order I have). The size of the cubemap is the width of one of the square images.

[Kibouo]

By "appended to each other" do you mean that you open 6 different image files and place them after each other in the buffer?

[AustinJ235]

Say you load an image into a Vec of u8's, where each value is the color component r, g, b, or a; or any other variant. Just append the next image's data onto that Vec.