matrix Directory Reference

Files
	matrix.cpp

Detailed Description

Matrix Rain

Matrix Rain recreates the classic falling-glyph effect using SDL_ttf and MXVK sprites. The glyphs are rendered into an off-screen SDL surface, tinted by depth level, and uploaded into a texture every frame. The bundled default font is the bold Noto Sans CJK JP face; use --font-path <file> to point at another font.

Controls

• Space - randomize the streams and clear the canvas
• Escape - quit
• --binary - limit the glyph set to 0 and 1
• --font-size <px> - set the glyph raster size in pixels
• --font-path <file> - override the bundled bold font file used for glyphs
• --color <spec> - tint the rain using #RRGGBB or R,G,B

How It Works

The sample builds a glyph set from the bundled bold Noto Sans CJK JP font, lays out vertical streams to match the current window size, and updates their positions on a timer. The canvas is then uploaded to a sprite and drawn to the swapchain, so the whole effect stays inside the Vulkan presentation loop.