Adding very basic 3d outside of a standard operating system - Floating points and basic 3d graphics

Floating point math now works reliably in Responsive OS, enabling more complex calculations for graphics and simulations.

Responsive OS has achieved stable floating-point math and implemented basic 3D graphics capabilities. The developer successfully enabled the FPU (floating-point unit) and SSE instructions on the CPU, ensuring the stack is 16-byte aligned for floating-point operations. This enables the use of floating-point types directly, rather than relying on compiler optimizations to convert them to fixed-precision integers. The project includes helper functions for 3D vector math, such as calculating distance, magnitude, and a fast inverse square root approximation. A novel method for projecting 3D points onto a 2D screen is introduced, simplifying calculations by assuming axis-aligned or 45-degree viewing angles, resulting in a fish-eye effect. This projection encodes distance and depth information within the 3D vector structure, allowing for rendering of basic shapes like a house, with a new overloaded draw segment function that handles points in front of and behind the camera.

The successful integration of floating-point arithmetic in Responsive OS is a significant step towards its maturity as a functional operating system. Previously, developers had to work around the absence of stable floating-point support, often resorting to complex integer approximations or custom libraries. This update removes that barrier, opening the door for more sophisticated applications, particularly in graphics, scientific computing, and signal processing.

The introduction of 3D graphics, even in a basic form, suggests a move towards richer user interfaces and multimedia capabilities within Responsive OS. The custom projection method highlights an experimental approach to rendering, prioritizing simplicity and unique visual effects over strict mathematical accuracy. This could lead to specialized graphical applications or a distinct aesthetic for the OS, while the underlying floating-point support is key for future development in performance-critical areas.