add perspective matrix and mesh drawing

1 files changed, 9 insertions, 0 deletions

diff --git a/example.h b/example.h
index df671e1..29212aa 100644
--- a/example.h
+++ b/example.h
@@ -1,8 +1,11 @@
 #include <stdint.h>
 
+#define PI ((float)3.14159265358979323846)
+
 void init();
 void draw_frame(sponge_Texture c);
 void mouse_move(int32_t x, int32_t y);
+void draw_frame_3d(sponge_Texture c, float *depths);
 
 #ifdef SPONGE_EXAMPLE_IMPLEMENTATION
 
@@ -14,4 +17,10 @@ void init() {}
 void mouse_move(int32_t x, int32_t y) {}
 #endif // SPONGE_EXAMPLE_MOUSE_MOVE_DEFINED
 
+#ifndef SPONGE_EXAMPLE_DRAW_FRAME_3D_DEFINED
+void draw_frame_3d(sponge_Texture c, float *depths) {
+    draw_frame(c);
+}
+#endif // SPONGE_EXAMPLE_DRAW_FRAME_3D_DEFINED
+
 #endif // SPONGE_EXAMPLE_IMPLEMENTATION