Unable to pass vec4[] uniform as function argument in Metal

[luboslenco]

Source glsl:

uniform vec4 shirr[7];

vec3 shIrradiance(const vec3 nor) {
	vec3 cl00 = vec3(shirr[0].x, shirr[0].y, shirr[0].z);
	// ...
}

void main() {
	// ...
	shIrradiance(n);
}

Output metal:

struct Material_mesh_frag_main_uniforms
{
    float4 shirr[7];
    // ...
};

float3 shIrradiance(thread const float3& nor, thread spvUnsafeArray<float4, 7> (&shirr))
{
    //...
}

fragment Material_mesh_frag_main_out Material_mesh_frag_main(Material_mesh_frag_main_in in [[stage_in]], constant Material_mesh_frag_main_uniforms& uniforms [[buffer(0)]])
{
    //...
    // Error:
    // No matching function for call to 'shIrradiance'
    // Candidate function not viable: 2nd argument ('const constant spvUnsafeArray<float4, 7>') is in address space constant, but parameter must be in address space 0
    shIrradiance(n, uniforms.shirr);
}

[luboslenco]

This one still stands based on my initial testing.

[luboslenco]

Workaround:

uniform vec4 shirr[7];

vec3 shIrradiance(const vec3 nor, const vec4 shirr[7]) {
	vec3 cl00 = vec3(shirr[0].x, shirr[0].y, shirr[0].z);
	// ...
}

void main() {
	// ...
	shIrradiance(n, shirr);
}

[RobDangerous]

Was fixed in b3c5f72.