diff --git a/.gitignore b/.gitignore
index c44b317..4cff121 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,8 @@ target
 *.ppm
 *.png
 *.svg
+
 !images/buzz/*
+!images/ivo/*
 !images/l/*
 !images/r3d.png
diff --git a/README.md b/README.md
index 0837657..9b2c723 100644
--- a/README.md
+++ b/README.md
@@ -31,3 +31,12 @@ functions and triangle meshes.
 ![trex](images/l/trex.png)
 ![skyscrapers](images/l/skyscrapers.png)
 ![fun](images/l/fun.png)
+
+## Ivo, the isometric voxel renderer
+
+`ivo` is an isometric voxel renderer that is quite limited, for instance it does
+not support arbitrary cameras, but it is fun to play with anyhow.
+
+![hollow-cube](images/ivo/hollow_cube.png)
+![archi](images/ivo/archi.png)
+![octa](images/ivo/octa.png)
diff --git a/images/ivo/archi.png b/images/ivo/archi.png
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diff --git a/images/ivo/hollow_cube.png b/images/ivo/hollow_cube.png
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diff --git a/images/ivo/octa.png b/images/ivo/octa.png
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