[Mesa-dev] Instancing support in r300g?

[Lauri Kasanen]

Hi,

The 'net claims that instancing is a SM3 feature[1] (r500), but also
supported on SM2 ATI cards[2] (r300-r400).

Yet r300g claims no support for it, and it seems that even Nvidia's
Windows drivers don't expose ARB_draw_instanced on gf6 and gf7[3].

What's the story here? Does the GL extension use something different
than what DX uses?

- Lauri

[1] http://http.developer.nvidia.com/GPUGems2/gpugems2_chapter03.html
"Using the Geometry Instancing API provided by DirectX 9 and fully
supported in hardware by GeForce 6 Series GPUs"

[2] http://aras-p.info/texts/D3D9GPUHacks.html ,
http://www.hardwareheaven.com/industry-news/51427-farcy-1-2-withdrawn-patch.html

[3]
http://feedback.wildfiregames.com/report/opengl/feature/GL_ARB_draw_instanced