[orx-temporal-blur] Add gain and color matrix controls

orx-temporal-blur/README.md

@@ -10,27 +10,6 @@ while processing the tail-end of the extension chain. This multi-sampling strate
 entirely suited in real-time and/or interactive settings.
 
 `orx-temporal-blur` works well with programs that use `seconds` for their animation input.
-This includes `Animatables`, but only after the `Animatable` clock is synchronized with the `Program` clock.
-(Which you should already have done when using `ScreenRecorder`) 
-
-Synchronizing clocks in OPENRNDR 0.3.36 (current release):
-```
-Animatable.clock(object: Clock {
-                override val time: Long
-                    get() = (clock() * 1E3).toLong()
-            })
-```
-
-Synchronizing high precision clocks in OPENRNDR 0.3.37 (future release)
-```
-Animatable.clock(object: Clock {
-                override val time: Long
-                get() = timeNanos / 1000
-                override val timeNanos: Long
-                    get() = (clock() * 1E6).toLong()
-
-            })
-```
 
 Note that time-step-based simulations or integrations will likely break because your drawing code will be executed multiple times
 per frame.
@@ -39,9 +18,24 @@ per frame.
 
 ```kotlin
 extend(TemporalBlur()) {
-    duration = 0.9
-    samples = 30
+    duration = 0.9 // duration is in frames
+    samples = 30 
     fps = 60.0 
     jitter = 1.0
 }
 ```
+
+## Color shifts
+
+Additionally, a color matrix can be set per accumulation step. See [`DemoColorShift01.kt`](src/demo/kotlin/DemoColorShift01.kt)
+
+```
+extend(TemporalBlur()) {
+    colorMatrix = {
+        // `it` is 0.0 at start of frame, 1.0 at end of frame
+        tint(ColorRGBa.WHITE.mix(ColorRGBa.BLUE, it))
+    }
+}
+```
+
+