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-rw-r--r--src/main.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/main.cpp b/src/main.cpp
index 083427c..a341233 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -81,8 +81,8 @@ static void
Redisplay(void)
{
const float m[4] = {
- 1.0, 0.0,
- 0.0, 1.0
+ cosf(angle_offset), sinf(angle_offset),
+ -sinf(angle_offset), cosf(angle_offset)
};