Dear game developers,

I am looking forward to find people who are interested in 3D software rendering. In my opinion it is good to start in software to learn the basics, especially starting with a good implementation as foundation. If you understand everything you can move on to complex hardware acceleration APIs. The implementation is capable to render triangles and rectangles.

Code to render a triangle looks sort of like this:

local viewFrustum = createViewFrustum(
    createVector(0, 0, 0),      -- position
    createVector(10, 0, 0),     -- right
    createVector(0, 0, 10),     -- up
    createVector(0, 20, 0)      -- front
);
local plane = createPlane(
    createVector(-3, 10, -3),
    createVector(6, 0, 0),
    createVector(0, 0, 6)
);
local function task_draw_scene(thread)
    local bbuf = create_backbuffer(640, 480, 255, 255, 0, 50);
    local dbuf = createDepthBuffer(640, 480, 1);
    
    local time_start = getTickCount();
    
    do
        local gotToDraw, numDrawn, numSkipped = draw_plane_on_bbuf(viewFrustum, bbuf, dbuf, plane, true, “tri”);
        
        if ( gotToDraw ) then
            outputDebugString( "drawn " .. numDrawn .. " pixels (skipped " .. numSkipped .. ")" );
        end
    end
    
   (…)
end

If I managed to capture your interest then I have to mention that you require the game “Grand Theft Auto San Andreas”, the multiplayer framework “MTA:SA” and the following MTA Server resource:

https://github.com/quiret/mta_lua_3d_math

https://forum.mtasa.com/topic/122576-software-rendering-in-mtasa-lua/

There is a topic on the MTA forums if you want to learn more about this project. Maybe we will get to write a really good C++ implementation ?

- Martin