[SOLVED] ImGui 1.89.9 integration

[Amerio.Stephane]

Hi,

I'm trying to update ImGui from the provided 1.81 (in c++ thrid party) to the most recent github 1.89.9. But I get this compilation error:

1>...\source\ImGuiImpl.cpp(228,81): error C2664: 'void Unigine::MeshDynamic::addIndicesArray(const int *,int)': cannot convert argument 1 from 'T *const ' to 'const int *'
1>        with
1>        [
1>            T=ImWchar
1>        ]

Of course, a simple cast isn't working. How can we fix this?

Note: 1.81 integration works fine, but we need to use other imgui extensions that rely on a more recent ImGui API.

Thanks!

[sweetluna]

Hi,

It looks like you replaced imconfig.h too. Originally it defined ImDrawIdx as an int.

//---- Use 32-bit vertex indices (default is 16-bit) is one way to allow large meshes with more than 64K vertices.
// Your renderer backend will need to support it (most example renderer backends support both 16/32-bit indices).
// Another way to allow large meshes while keeping 16-bit indices is to handle ImDrawCmd::VtxOffset in your renderer.
// Read about ImGuiBackendFlags_RendererHasVtxOffset for details.
#define ImDrawIdx int

 

Hope this helps!
 

[Amerio.Stephane]

Duh, of course! Thanks for the clarification! (I think this should go into the doc anyway, along with "don't forget to import the imgui.basemat". Spare us the headaches...)

Thanks!

[silent]

Yeah, we will add this information into docs soon :) Thanks!