1 files changed, 29 insertions, 0 deletions
diff --git a/src/o3d/vertex_data.hpp b/src/o3d/vertex_data.hpp
new file mode 100644
index 0000000..0ebc6c9
--- /dev/null
+++ b/src/o3d/vertex_data.hpp
@@ -0,0 +1,29 @@
+#ifndef O3D_VERTEX_DATA_H
+#define O3D_VERTEX_DATA_H
+
+#include "math/vector.hpp"
+
+using
+    engine::math::Vector3;
+
+namespace engine::o3d {
+
+struct VertexData {
+    static constexpr VertexData lerp(const VertexData& vd1, const VertexData& vd2, float b0) {
+        return {
+            b0 * vd1.world_loc + (1.f - b0) * vd2.world_loc,
+        };
+    }
+
+    static constexpr VertexData bilerp(const VertexData& vd1, const VertexData& vd2, const VertexData& vd3, float b0, float b1) {
+        return {
+            b0 * vd1.world_loc + b1 * vd2.world_loc + (1.f - b0 - b1) * vd3.world_loc,
+        };
+    }
+
+    Vector3 world_loc;
+};
+
+}
+
+#endif // O3D_VERTEX_DATA_H