Pingo - 3D graphics based on VDU commands

video/agon.h

@@ -268,6 +268,7 @@
 #define BUFFERED_COMPRESS				0x40	// Compress blocks from multiple buffers into one buffer
 #define BUFFERED_DECOMPRESS				0x41	// Decompress blocks from multiple buffers into one buffer
 #define BUFFERED_EXPAND_BITMAP			0x48	// Expand a bitmap buffer
+#define BUFFERED_PINGO_3D               0x49    // Configure a 3D scene or render to a bitmap
 
 #define BUFFERED_DEBUG_INFO				0x80	// Get debug info about a buffer
 

video/pingo/LICENSE

@@ -0,0 +1,121 @@
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video/pingo/README.md

@@ -0,0 +1,30 @@
+
+# pingo
+
+Pingo is a low level 2D/3D software graphics library. It uses no dynamically allocated memory and provides a simple low level backend interface to implement for your platform. This library can easily be compiled for many different platforms since it has no dependencies except for a working C compiler, it has been tested on Windows, Linux x86, Linux ARM, ESP32, Arm Cortex M3 and even RISC V CPUs.
+
+The cmake project contains targets that build examples that show  3D rendering on different platforms.
+```
+git clone git@github.com:fededevi/pingo.git
+cd pingo
+mkdir build && cd build
+cmake .. && make
+```
+
+If you compile on Linux the default cmake project will build 3 example binaries:
+- linux_window -> An example that renders to an X11 window
+- linux_framebuffer -> An example that renders to a framebuffer device 
+- linux_terminal -> An example that renders to the terminal
+
+If you compile on Windows the default cmake project will build 2 example binaries:
+- win_window -> An example that renders to a Windows window
+- win_terminal -> An example that renders to the terminal
+
+Some backends like the linux framebuffer require exact dimension and pixel format, see pixel.h and this line in the example's main.c:
+```
+int main(){
+    Vec2i size = {300, 150};
+```
+
+#### An example with texture and per-triangle shading
+![Example](/public/viking.png)