diff --git a/src/cal/cal/ambient.fmt b/src/cal/cal/ambient.fmt
new file mode 100644
index 000000000..d13378e8d
--- /dev/null
+++ b/src/cal/cal/ambient.fmt
@@ -0,0 +1 @@
+${ px } ${ py } ${ pz } ${ nx } ${ ny } ${ nz } ${uvx} ${uvy} ${uvz} ${lvl} ${wt} ${urad} ${vrad} ${red} ${grn} ${blu} ${pgu} ${pgv} ${dgu} ${dgv} $(corral)