Runtime support is indicated via QRhi::Feature::HalfAttributes.
OpenGL support is available in OpenGL 3.0+, OpenGL ES 3.0+, and in
implementations that support the extension GL_ARB_half_float_vertex.
Other RHI backends (Vulkan, Metal, D3D11, and D3D12) all support this
feature.
Note that D3D does not support the half3 type. D3D backends pass half3
as half4.
tst_qrhi auto unit test included.
Change-Id: Ide05d7f62f6102ad5cae1b3681fdda98d52bca31
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
9ffa16baf0