QPerVertexColorMaterial does not work with Direct3D

It gives a shader compilation error.
” Shader Error: "cbuffer ID 50 (name: qt3d_light_uniforms), member index 0 (name: lights) cannot be expressed with either HLSL packing layout or packoffset."

Seems to be the same issue as it was for Gooch material, reported (and since fixed) here:

QTBUG-110128

 

Context: pervertexcolor.frag

const int MAX_LIGHTS = 8;
const int TYPE_POINT = 0;
const int TYPE_DIRECTIONAL = 1;
const int TYPE_SPOT = 2;

struct Light

{     int type;     vec3 position;     vec3 color;     float intensity;     vec3 direction;     float constantAttenuation;     float linearAttenuation;     float quadraticAttenuation;     float cutOffAngle; }

;

layout(std140, binding = 2) uniform qt3d_light_uniforms

{   uniform Light lights[MAX_LIGHTS];   uniform int lightCount;   uniform int envLightCount; }

;