1 files changed, 9 insertions, 0 deletions
diff --git a/src/gl.zig b/src/gl.zig
index 2b7e9ea..b578350 100644
--- a/src/gl.zig
+++ b/src/gl.zig
@@ -941,11 +941,20 @@ pub const Source = struct {
     };
 
     texture: Texture,
+    freeze: bool = false,
+    step: std.atomic.Value(bool) = std.atomic.Value(bool).init(false),
+
     deinit_fn: *const fn (self: *Source, allocator: std.mem.Allocator) void,
 
     pub fn deinit(self: *Source, allocator: std.mem.Allocator) void {
         self.deinit_fn(self, allocator);
     }
+
+    pub fn shouldStep(self: *Source) bool {
+        const step = !self.freeze or self.step.load(.acquire);
+        if (step) self.step.store(false, .release);
+        return step;
+    }
 };
 
 pub const UniformCache = struct {