Any notes about what's contained in fp_cN besides fp_c9?

[Trainmaster9977]

I assume it's up in the air currently, given it's not annotated, but do you have any notes on what they may contain? It's harder to tell given that the rest of it doesn't contain material params (those seem to be just in fp_c9) that can be viewed and edited easily, but worth a shot to ask if you already have anything.

Especially given, that the portion

fn pixel_source_not_premultiplied() {
        let source = indoc! {"
            temp_733 = temp_730 * temp_680;
            // 0x0017F8: 0x49A002AC06870000 Ffma
            temp_734 = fma(temp_722, fp_c11_data[26].x, temp_732);
            // 0x001808: 0x49A002AC06870401 Ffma
            temp_735 = fma(temp_724, fp_c11_data[26].x, temp_732);
            // 0x001810: 0x49A002AC06870202 Ffma
            temp_736 = fma(temp_726, fp_c11_data[26].x, temp_732);
            // 0x001818: 0xE30000000007000F Exit
            if (!s_is_bgra[0])
            {
                out_attr0.x = temp_734;
                temp_737 = true;
            }
            else
            {
                out_attr0.z = temp_734;
            }
            temp_737 = false;
            out_attr0.y = temp_735;
            if (!s_is_bgra[0])
            {
                out_attr0.z = temp_736;
                temp_738 = true;
            }
            else
            {
                out_attr0.x = temp_736;
            }
            temp_738 = false;
            out_attr0.w = temp_733;
        "};

Is in the main.rs file- So would you know what fp_c11_data[26].x is at least, or is that still a mystery?