Data structure packing

[JoshKlint]

I have this structure:

struct SVONode
{
    uint child[8];
};

And I am binding it like so:

layout(binding = 5) readonly buffer SVONodeBlock { SVONode svonodes[]; };

I am expecting this to be a tightly packed array where each element is 32 bytes (eight 32-bit unsigned integers) so I can upload an array of the identical structures declared in C++.

Am I making any mistakes here? The shader does not seem to be getting the right data.

[Alfonse_Reinheart]

Try again using std430 layout explicitly. You shouldn’t have to, since the extension says that this will be the default for buffer variables.

Alternatively, look at the SPIR-V assembly output.

[JoshKlint]

The results are identical when I add that, so I think the problem is probably somewhere else.