tangent and tbn matrix tests

tests/geometry/functions/area.cc

@@ -10,11 +10,11 @@ TG_FUZZ_TEST(TypedGeometry, Area)
 
         // random 2d transformation
         auto alpha = tg::degree(uniform(rng, 0.0f, 360.0f));
-        mat2x2 rotation = {vec2(cos(alpha), -sin(alpha)), vec2(sin(alpha), cos(alpha))};
+        mat2x2 rotation = {{vec2(cos(alpha), -sin(alpha)), vec2(sin(alpha), cos(alpha))}};
         f32 randomScale = 0.0f;
         while (randomScale == 0.0f)
             randomScale = uniform(rng, -10.0f, 10.0f);
-        mat2x2 scale = {vec2(randomScale, 0), vec2(0, randomScale)};
+        mat2x2 scale = {{vec2(randomScale, 0), vec2(0, randomScale)}};
         auto box = tg::box2(tg::pos2(-10, -10), tg::pos2(10, 10));
         auto translation = tg::translation(uniform(rng, box) - pos2::zero);