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-rw-r--r--sandboxes/EXAMPLE_circulation.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/sandboxes/EXAMPLE_circulation.txt b/sandboxes/EXAMPLE_circulation.txt
index 1293dad..8d31e84 100644
--- a/sandboxes/EXAMPLE_circulation.txt
+++ b/sandboxes/EXAMPLE_circulation.txt
@@ -15,7 +15,7 @@ color #ffaabb
# The functions are written in the GLSL language (check out https://www.khronos.org/opengles/sdk/docs/manglsl/docbook4/).
# You can use all sorts of functions like sin, cos, sqrt,
# etc. For multiplication you use * and to take a to the power of b you need to use pow(a, b).
-# You can use x,y,z to get the coordinates of the grain, or p to get them as a vector.
+# You can use x,y,z to get the coordinates of the grain, or p to get them as a vector. You can also use pi.
add vec3(z, 0, -sin(y)*x)
# We can add more functions in this same file. We can change settings before adding our next function