3D Renderer Line drawer

So I was working on a 3D rendering program

Writing a whole 3D render in assembly was slightly overambitious I think. It took thousands of lines of code and hundreds of memory allocations, functions and random stuff.

It is supposed to be able to do rotation, projection, and wireframe drawing, and I tried making it draw a simple cube.

As of right now it doesn’t work. Debugging DTA assembly is hard especially when you have 1400 lines of it. (i thought of splitting it up into several files, but the way that it’s assembled and stuff makes it difficult, I still do have many files but I merge them all before assembling)

There’s some problems with the math and conditional stuff and if i try to run the whole renderer the screen just shows one pixel at coordinates (0, 0) flickering.

But I was able to program a functional line drawing algorithm based on generalized Bresenham’s line drawing algorithm! (see picture) It basically works by taking two start and end coordinates, and adjusting the x towards the end coordinate, while measuring the error of the y-coordinate from the ideal line and adjusting for it. idk im bad at explaining things.

I’ll probably write more about this in detail once I get the 3D renderer fully working.