Allow 8× multi sampling in traditional (non-framebuffer) MSAA

[kai-li-wop]

The goal is to enable 8× multi sampling (r_ext_multisample 8) in traditional (non-framebuffer) MSAA for World of Padman

• [x] OpenGL 1 renderer
• [x] OpenGL 2 renderer

Additional questions

• Is this also relevant for the Vulkan renderer?
• What is r_ext_framebuffer_multisample for?

[kai-li-wop]

See: https://github.com/ioquake/ioq3/pull/487

[kai-li-wop]

Introduced with 55cd12ff4b56b8dbb853708199b2b041c3a32290

[kai-li-wop]

Example picture MSAA Off (see in full screen)

Example picture MSAA 2x (see in full screen)

Example picture MSAA 4x (see in full screen)

Example picture MSAA 8x (see in full screen)

[mgerhardy]

There is no multisample support in the vulkan renderer yet - see https://github.com/PadWorld-Entertainment/worldofpadman/commit/de3ef9ad8e4e97cdd446c1c89cd40fd99813598a

[mgerhardy]

r_ext_framebuffer_multisample controlls the samples for fbos - http://damien.porquet.free.fr/msi/glexts/GL_EXT_framebuffer_multisample.txt.html

in other words - antialiasing for framebuffers

[kai-li-wop]

OK, then my questions are answered. Neither the Vulkan renderer is officially supported by WoP yet, nor do we provide an option for r_ext_framebuffer_multisample in the menu. So both are irrelevant for this ticket. Thx