c++ API applying material to instance

[gregpat90]

I am having trouble applying the blueSG material from the cpp example using the c++ API instead of the javascript API.

[ak]

Hi,

What do you mean with 'apply' in detail?
Is it possible to upload the application you tried with?

Regards.

[gregpat90]

I am trying to assign to existing material to geometry so that the geometry is rendering using that material. This is code I currently have.


db->create_attribute(cstate, (std::string(meshname)).c_str(), "String","Material[]");

if(inst.is_valid())
{
cstate.loginfo( "inst after create material valid ");
}

mi::Access<mi::Ref> ref = inst.get_field("material[0]");

if(ref.is_valid())
{
cstate.loginfo( "ref is valid ");
}

mi::Edit<mi::Material> mat = ref->get_edit(cstate);
if(mat.is_valid())
{
cstate.loginfo( "mat is valid ");
}


The ref is not valid

[cleh]

Hi,

using RealityServer 2.3, accessing the material of an instance should look like this



mi::Access<mi::Array<mi::Material> > mat = inst.get_field("material");
if (!mat.is_valid())
return false;
mi::Access<mi::Material> mat0 = mat->get_element(cstate, 0);
if (!mat0.is_valid())
return false;


If you are not on 2.3, please let me know what version you are working with and
I'll look into this in detail.

Regards,
Chris