Merge "Add sparkle noise type in the TurbulenceNoiseShader." into main

6 files changed, 169 insertions, 80 deletions

diff --git a/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/loadingeffect/LoadingEffect.kt b/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/loadingeffect/LoadingEffect.kt
index abe1e3de8eea..1c763e8c6108 100644
--- a/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/loadingeffect/LoadingEffect.kt
+++ b/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/loadingeffect/LoadingEffect.kt
@@ -181,6 +181,11 @@ private constructor(
         turbulenceNoiseShader.setColor(newColor)
     }
 
+    /** Updates the noise color that's screen blended on top. */
+    fun updateScreenColor(newColor: Int) {
+        turbulenceNoiseShader.setScreenColor(newColor)
+    }
+
     /**
      * Retrieves the noise offset x, y, z values. This is useful for replaying the animation
      * smoothly from the last animation, by passing in the last values to the next animation.
@@ -322,7 +327,10 @@ private constructor(
     private fun draw() {
         paintCallback?.onDraw(paint!!)
         renderEffectCallback?.onDraw(
-            RenderEffect.createRuntimeShaderEffect(turbulenceNoiseShader, "in_src")
+            RenderEffect.createRuntimeShaderEffect(
+                turbulenceNoiseShader,
+                TurbulenceNoiseShader.BACKGROUND_UNIFORM
+            )
         )
     }
 
diff --git a/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseAnimationConfig.kt b/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseAnimationConfig.kt
index 59354c843447..ba8f1ace0214 100644
--- a/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseAnimationConfig.kt
+++ b/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseAnimationConfig.kt
@@ -52,7 +52,7 @@ data class TurbulenceNoiseAnimationConfig(
     /** Color of the effect. */
     val color: Int = DEFAULT_COLOR,
     /** Background color of the effect. */
-    val backgroundColor: Int = DEFAULT_BACKGROUND_COLOR,
+    val screenColor: Int = DEFAULT_SCREEN_COLOR,
     val width: Float = 0f,
     val height: Float = 0f,
     val maxDuration: Float = DEFAULT_MAX_DURATION_IN_MILLIS,
@@ -72,7 +72,7 @@ data class TurbulenceNoiseAnimationConfig(
      */
     val lumaMatteOverallBrightness: Float = DEFAULT_LUMA_MATTE_OVERALL_BRIGHTNESS,
     /** Whether to flip the luma mask. */
-    val shouldInverseNoiseLuminosity: Boolean = false
+    val shouldInverseNoiseLuminosity: Boolean = false,
 ) {
     companion object {
         const val DEFAULT_MAX_DURATION_IN_MILLIS = 30_000f // Max 30 sec
@@ -83,7 +83,7 @@ data class TurbulenceNoiseAnimationConfig(
         const val DEFAULT_COLOR = Color.WHITE
         const val DEFAULT_LUMA_MATTE_BLEND_FACTOR = 1f
         const val DEFAULT_LUMA_MATTE_OVERALL_BRIGHTNESS = 0f
-        const val DEFAULT_BACKGROUND_COLOR = Color.BLACK
+        const val DEFAULT_SCREEN_COLOR = Color.BLACK
         private val random = Random()
     }
 }
diff --git a/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseShader.kt b/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseShader.kt
index 8dd90a8ffe9f..025c8b9dce04 100644
--- a/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseShader.kt
+++ b/packages/SystemUI/animation/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseShader.kt
@@ -16,6 +16,7 @@
 package com.android.systemui.surfaceeffects.turbulencenoise
 
 import android.graphics.RuntimeShader
+import com.android.systemui.surfaceeffects.shaders.SolidColorShader
 import com.android.systemui.surfaceeffects.shaderutil.ShaderUtilLibrary
 import java.lang.Float.max
 
@@ -28,9 +29,11 @@ class TurbulenceNoiseShader(val baseType: Type = Type.SIMPLEX_NOISE) :
     RuntimeShader(getShader(baseType)) {
     // language=AGSL
     companion object {
+        /** Uniform name for the background buffer (e.g. image, solid color, etc.). */
+        const val BACKGROUND_UNIFORM = "in_src"
         private const val UNIFORMS =
             """
-            uniform shader in_src; // Needed to support RenderEffect.
+            uniform shader ${BACKGROUND_UNIFORM};
             uniform float in_gridNum;
             uniform vec3 in_noiseMove;
             uniform vec2 in_size;
@@ -41,7 +44,7 @@ class TurbulenceNoiseShader(val baseType: Type = Type.SIMPLEX_NOISE) :
             uniform half in_lumaMatteBlendFactor;
             uniform half in_lumaMatteOverallBrightness;
             layout(color) uniform vec4 in_color;
-            layout(color) uniform vec4 in_backgroundColor;
+            layout(color) uniform vec4 in_screenColor;
         """
 
         private const val SIMPLEX_SHADER =
@@ -50,22 +53,20 @@ class TurbulenceNoiseShader(val baseType: Type = Type.SIMPLEX_NOISE) :
                 vec2 uv = p / in_size.xy;
                 uv.x *= in_aspectRatio;
 
+                // Compute turbulence effect with the uv distorted with simplex noise.
                 vec3 noiseP = vec3(uv + in_noiseMove.xy, in_noiseMove.z) * in_gridNum;
-                // Bring it to [0, 1] range.
-                float luma = (simplex3d(noiseP) * in_inverseLuma) * 0.5 + 0.5;
-                luma = saturate(luma * in_lumaMatteBlendFactor + in_lumaMatteOverallBrightness)
-                        * in_opacity;
-                vec3 mask = maskLuminosity(in_color.rgb, luma);
-                vec3 color = in_backgroundColor.rgb + mask * 0.6;
+                vec3 color = getColorTurbulenceMask(simplex3d(noiseP) * in_inverseLuma);
+
+                // Blend the result with the background color.
+                color = in_src.eval(p).rgb + color * 0.6;
 
                 // Add dither with triangle distribution to avoid color banding. Dither in the
                 // shader here as we are in gamma space.
                 float dither = triangleNoise(p * in_pixelDensity) / 255.;
+                color += dither.rrr;
 
-                // The result color should be pre-multiplied, i.e. [R*A, G*A, B*A, A], thus need to
-                // multiply rgb with a to get the correct result.
-                color = (color + dither.rrr) * in_opacity;
-                return vec4(color, in_opacity);
+                // Return the pre-multiplied alpha result, i.e. [R*A, G*A, B*A, A].
+                return vec4(color * in_opacity, in_opacity);
             }
         """
 
@@ -76,32 +77,105 @@ class TurbulenceNoiseShader(val baseType: Type = Type.SIMPLEX_NOISE) :
                 uv.x *= in_aspectRatio;
 
                 vec3 noiseP = vec3(uv + in_noiseMove.xy, in_noiseMove.z) * in_gridNum;
-                // Bring it to [0, 1] range.
-                float luma = (simplex3d_fractal(noiseP) * in_inverseLuma) * 0.5 + 0.5;
-                luma = saturate(luma * in_lumaMatteBlendFactor + in_lumaMatteOverallBrightness)
-                        * in_opacity;
-                vec3 mask = maskLuminosity(in_color.rgb, luma);
-                vec3 color = in_backgroundColor.rgb + mask * 0.6;
+                vec3 color = getColorTurbulenceMask(simplex3d_fractal(noiseP) * in_inverseLuma);
+
+                // Blend the result with the background color.
+                color = in_src.eval(p).rgb + color * 0.6;
 
                 // Skip dithering.
                 return vec4(color * in_opacity, in_opacity);
             }
         """
+
+        /**
+         * This effect has two layers: color turbulence effect with sparkles on top.
+         * 1. Gets the luma matte using Simplex noise.
+         * 2. Generate a colored turbulence layer with the luma matte.
+         * 3. Generate a colored sparkle layer with the same luma matter.
+         * 4. Apply a screen color to the background image.
+         * 5. Composite the previous result with the color turbulence.
+         * 6. Composite the latest result with the sparkles.
+         */
+        private const val SIMPLEX_SPARKLE_SHADER =
+            """
+            vec4 main(vec2 p) {
+                vec2 uv = p / in_size.xy;
+                uv.x *= in_aspectRatio;
+
+                vec3 noiseP = vec3(uv + in_noiseMove.xy, in_noiseMove.z) * in_gridNum;
+                // Luma is used for both color and sparkle masks.
+                float luma = simplex3d(noiseP) * in_inverseLuma;
+
+                // Get color layer (color mask with in_color applied)
+                vec3 colorLayer = getColorTurbulenceMask(simplex3d(noiseP) * in_inverseLuma);
+                float dither = triangleNoise(p * in_pixelDensity) / 255.;
+                colorLayer += dither.rrr;
+
+                // Get sparkle layer (sparkle mask with particles & in_color applied)
+                vec3 sparkleLayer = getSparkleTurbulenceMask(luma, p);
+
+                // Composite with the background.
+                half4 bgColor = in_src.eval(p);
+                half sparkleOpacity = smoothstep(0, 0.75, in_opacity);
+
+                half3 effect = screen(bgColor.rgb, in_screenColor.rgb);
+                effect = screen(effect, colorLayer * 0.22);
+                effect += sparkleLayer * sparkleOpacity;
+
+                return mix(bgColor, vec4(effect, 1.), in_opacity);
+            }
+        """
+
+        private const val COMMON_FUNCTIONS =
+            /**
+             * Below two functions generate turbulence layers (color or sparkles applied) with the
+             * given luma matte. They both return a mask with in_color applied.
+             */
+            """
+            vec3 getColorTurbulenceMask(float luma) {
+                // Bring it to [0, 1] range.
+                luma = luma * 0.5 + 0.5;
+
+                half colorLuma =
+                    saturate(luma * in_lumaMatteBlendFactor + in_lumaMatteOverallBrightness)
+                    * in_opacity;
+                vec3 colorLayer = maskLuminosity(in_color.rgb, colorLuma);
+
+                return colorLayer;
+            }
+
+            vec3 getSparkleTurbulenceMask(float luma, vec2 p) {
+                half lumaIntensity = 1.75;
+                half lumaBrightness = -1.3;
+                half sparkleLuma = max(luma * lumaIntensity + lumaBrightness, 0.);
+
+                float sparkle = sparkles(p - mod(p, in_pixelDensity * 0.8), in_noiseMove.z);
+                vec3 sparkleLayer = maskLuminosity(in_color.rgb * sparkle, sparkleLuma);
+
+                return sparkleLayer;
+            }
+        """
         private const val SIMPLEX_NOISE_SHADER =
-            ShaderUtilLibrary.SHADER_LIB + UNIFORMS + SIMPLEX_SHADER
+            ShaderUtilLibrary.SHADER_LIB + UNIFORMS + COMMON_FUNCTIONS + SIMPLEX_SHADER
         private const val FRACTAL_NOISE_SHADER =
-            ShaderUtilLibrary.SHADER_LIB + UNIFORMS + FRACTAL_SHADER
-        // TODO (b/282007590): Add NOISE_WITH_SPARKLE
+            ShaderUtilLibrary.SHADER_LIB + UNIFORMS + COMMON_FUNCTIONS + FRACTAL_SHADER
+        private const val SPARKLE_NOISE_SHADER =
+            ShaderUtilLibrary.SHADER_LIB + UNIFORMS + COMMON_FUNCTIONS + SIMPLEX_SPARKLE_SHADER
 
         enum class Type {
+            /** Effect with a simple color noise turbulence. */
             SIMPLEX_NOISE,
+            /** Effect with a simple color noise turbulence, with fractal. */
             SIMPLEX_NOISE_FRACTAL,
+            /** Effect with color & sparkle turbulence with screen color layer. */
+            SIMPLEX_NOISE_SPARKLE
         }
 
         fun getShader(type: Type): String {
             return when (type) {
                 Type.SIMPLEX_NOISE -> SIMPLEX_NOISE_SHADER
                 Type.SIMPLEX_NOISE_FRACTAL -> FRACTAL_NOISE_SHADER
+                Type.SIMPLEX_NOISE_SPARKLE -> SPARKLE_NOISE_SHADER
             }
         }
     }
@@ -111,7 +185,7 @@ class TurbulenceNoiseShader(val baseType: Type = Type.SIMPLEX_NOISE) :
         setGridCount(config.gridCount)
         setPixelDensity(config.pixelDensity)
         setColor(config.color)
-        setBackgroundColor(config.backgroundColor)
+        setScreenColor(config.screenColor)
         setSize(config.width, config.height)
         setLumaMatteFactors(config.lumaMatteBlendFactor, config.lumaMatteOverallBrightness)
         setInverseNoiseLuminosity(config.shouldInverseNoiseLuminosity)
@@ -137,9 +211,20 @@ class TurbulenceNoiseShader(val baseType: Type = Type.SIMPLEX_NOISE) :
         setColorUniform("in_color", color)
     }
 
-    /** Sets the background color of the effect. Alpha is ignored. */
+    /**
+     * Sets the color that is used for blending on top of the background color/image. Only relevant
+     * to [Type.SIMPLEX_NOISE_SPARKLE].
+     */
+    fun setScreenColor(color: Int) {
+        setColorUniform("in_screenColor", color)
+    }
+
+    /**
+     * Sets the background color of the effect. Alpha is ignored. If you are using [RenderEffect],
+     * no need to call this function since the background image of the View will be used.
+     */
     fun setBackgroundColor(color: Int) {
-        setColorUniform("in_backgroundColor", color)
+        setInputShader(BACKGROUND_UNIFORM, SolidColorShader(color))
     }
 
     /**
@@ -163,7 +248,7 @@ class TurbulenceNoiseShader(val baseType: Type = Type.SIMPLEX_NOISE) :
      *
      * @param lumaMatteBlendFactor increases or decreases the amount of variance in noise. Setting
      *   this a lower number removes variations. I.e. the turbulence noise will look more blended.
-     *   Expected input range is [0, 1]. more dimmed.
+     *   Expected input range is [0, 1].
      * @param lumaMatteOverallBrightness adds the overall brightness of the turbulence noise.
      *   Expected input range is [0, 1].
      *
diff --git a/packages/SystemUI/src/com/android/systemui/media/controls/ui/controller/MediaControlPanel.java b/packages/SystemUI/src/com/android/systemui/media/controls/ui/controller/MediaControlPanel.java
index 26c63f31fa46..899b9ed103cd 100644
--- a/packages/SystemUI/src/com/android/systemui/media/controls/ui/controller/MediaControlPanel.java
+++ b/packages/SystemUI/src/com/android/systemui/media/controls/ui/controller/MediaControlPanel.java
@@ -1306,7 +1306,7 @@ public class MediaControlPanel {
                 TurbulenceNoiseAnimationConfig.DEFAULT_NOISE_SPEED_Z,
                 // Color will be correctly updated in ColorSchemeTransition.
                 /* color= */ mColorSchemeTransition.getAccentPrimary().getCurrentColor(),
-                /* backgroundColor= */ Color.BLACK,
+                /* screenColor= */ Color.BLACK,
                 width,
                 height,
                 TurbulenceNoiseAnimationConfig.DEFAULT_MAX_DURATION_IN_MILLIS,
diff --git a/packages/SystemUI/tests/src/com/android/systemui/surfaceeffects/loadingeffect/LoadingEffectTest.kt b/packages/SystemUI/tests/src/com/android/systemui/surfaceeffects/loadingeffect/LoadingEffectTest.kt
index 7c36a85243a2..7a83cfe852d6 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/surfaceeffects/loadingeffect/LoadingEffectTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/surfaceeffects/loadingeffect/LoadingEffectTest.kt
@@ -19,7 +19,9 @@ package com.android.systemui.surfaceeffects.loadingeffect
 import android.graphics.Paint
 import android.graphics.RenderEffect
 import android.testing.AndroidTestingRunner
+import android.testing.TestableLooper
 import androidx.test.filters.SmallTest
+import com.android.systemui.animation.AnimatorTestRule
 import com.android.systemui.model.SysUiStateTest
 import com.android.systemui.surfaceeffects.loadingeffect.LoadingEffect.Companion.AnimationState
 import com.android.systemui.surfaceeffects.loadingeffect.LoadingEffect.Companion.AnimationState.EASE_IN
@@ -31,18 +33,17 @@ import com.android.systemui.surfaceeffects.loadingeffect.LoadingEffect.Companion
 import com.android.systemui.surfaceeffects.loadingeffect.LoadingEffect.Companion.RenderEffectDrawCallback
 import com.android.systemui.surfaceeffects.turbulencenoise.TurbulenceNoiseAnimationConfig
 import com.android.systemui.surfaceeffects.turbulencenoise.TurbulenceNoiseShader
-import com.android.systemui.util.concurrency.FakeExecutor
-import com.android.systemui.util.time.FakeSystemClock
 import com.google.common.truth.Truth.assertThat
+import org.junit.Rule
 import org.junit.Test
 import org.junit.runner.RunWith
 
 @SmallTest
 @RunWith(AndroidTestingRunner::class)
+@TestableLooper.RunWithLooper(setAsMainLooper = true)
 class LoadingEffectTest : SysUiStateTest() {
 
-    private val fakeSystemClock = FakeSystemClock()
-    private val fakeExecutor = FakeExecutor(fakeSystemClock)
+    @get:Rule val animatorTestRule = AnimatorTestRule(this)
 
     @Test
     fun play_paintCallback_triggersDrawCallback() {
@@ -61,14 +62,12 @@ class LoadingEffectTest : SysUiStateTest() {
                 animationStateChangedCallback = null
             )
 
-        fakeExecutor.execute {
-            assertThat(paintFromCallback).isNull()
+        assertThat(paintFromCallback).isNull()
 
-            loadingEffect.play()
-            fakeSystemClock.advanceTime(500L)
+        loadingEffect.play()
+        animatorTestRule.advanceTimeBy(500L)
 
-            assertThat(paintFromCallback).isNotNull()
-        }
+        assertThat(paintFromCallback).isNotNull()
     }
 
     @Test
@@ -88,25 +87,22 @@ class LoadingEffectTest : SysUiStateTest() {
                 animationStateChangedCallback = null
             )
 
-        fakeExecutor.execute {
-            assertThat(renderEffectFromCallback).isNull()
+        assertThat(renderEffectFromCallback).isNull()
 
-            loadingEffect.play()
-            fakeSystemClock.advanceTime(500L)
+        loadingEffect.play()
+        animatorTestRule.advanceTimeBy(500L)
 
-            assertThat(renderEffectFromCallback).isNotNull()
-        }
+        assertThat(renderEffectFromCallback).isNotNull()
     }
 
     @Test
     fun play_animationStateChangesInOrder() {
         val config = TurbulenceNoiseAnimationConfig()
-        val expectedStates = arrayOf(NOT_PLAYING, EASE_IN, MAIN, EASE_OUT, NOT_PLAYING)
-        val actualStates = mutableListOf(NOT_PLAYING)
+        val states = mutableListOf(NOT_PLAYING)
         val stateChangedCallback =
             object : AnimationStateChangedCallback {
                 override fun onStateChanged(oldState: AnimationState, newState: AnimationState) {
-                    actualStates.add(newState)
+                    states.add(newState)
                 }
             }
         val drawCallback =
@@ -121,16 +117,15 @@ class LoadingEffectTest : SysUiStateTest() {
                 stateChangedCallback
             )
 
-        val timeToAdvance =
-            config.easeInDuration + config.maxDuration + config.easeOutDuration + 100
+        loadingEffect.play()
 
-        fakeExecutor.execute {
-            loadingEffect.play()
+        // Execute all the animators by advancing each duration with some buffer.
+        animatorTestRule.advanceTimeBy(config.easeInDuration.toLong())
+        animatorTestRule.advanceTimeBy(config.maxDuration.toLong())
+        animatorTestRule.advanceTimeBy(config.easeOutDuration.toLong())
+        animatorTestRule.advanceTimeBy(500)
 
-            fakeSystemClock.advanceTime(timeToAdvance.toLong())
-
-            assertThat(actualStates).isEqualTo(expectedStates)
-        }
+        assertThat(states).containsExactly(NOT_PLAYING, EASE_IN, MAIN, EASE_OUT, NOT_PLAYING)
     }
 
     @Test
@@ -157,17 +152,15 @@ class LoadingEffectTest : SysUiStateTest() {
                 stateChangedCallback
             )
 
-        fakeExecutor.execute {
-            assertThat(numPlay).isEqualTo(0)
+        assertThat(numPlay).isEqualTo(0)
 
-            loadingEffect.play()
-            loadingEffect.play()
-            loadingEffect.play()
-            loadingEffect.play()
-            loadingEffect.play()
+        loadingEffect.play()
+        loadingEffect.play()
+        loadingEffect.play()
+        loadingEffect.play()
+        loadingEffect.play()
 
-            assertThat(numPlay).isEqualTo(1)
-        }
+        assertThat(numPlay).isEqualTo(1)
     }
 
     @Test
@@ -181,7 +174,7 @@ class LoadingEffectTest : SysUiStateTest() {
         val stateChangedCallback =
             object : AnimationStateChangedCallback {
                 override fun onStateChanged(oldState: AnimationState, newState: AnimationState) {
-                    if (oldState == MAIN && newState == NOT_PLAYING) {
+                    if (oldState == EASE_OUT && newState == NOT_PLAYING) {
                         isFinished = true
                     }
                 }
@@ -194,18 +187,17 @@ class LoadingEffectTest : SysUiStateTest() {
                 stateChangedCallback
             )
 
-        fakeExecutor.execute {
-            assertThat(isFinished).isFalse()
+        assertThat(isFinished).isFalse()
 
-            loadingEffect.play()
-            fakeSystemClock.advanceTime(config.easeInDuration.toLong() + 500L)
+        loadingEffect.play()
+        animatorTestRule.advanceTimeBy(config.easeInDuration.toLong() + 500L)
 
-            assertThat(isFinished).isFalse()
+        assertThat(isFinished).isFalse()
 
-            loadingEffect.finish()
+        loadingEffect.finish()
+        animatorTestRule.advanceTimeBy(config.easeOutDuration.toLong() + 500L)
 
-            assertThat(isFinished).isTrue()
-        }
+        assertThat(isFinished).isTrue()
     }
 
     @Test
@@ -232,13 +224,11 @@ class LoadingEffectTest : SysUiStateTest() {
                 stateChangedCallback
             )
 
-        fakeExecutor.execute {
-            assertThat(isFinished).isFalse()
+        assertThat(isFinished).isFalse()
 
-            loadingEffect.finish()
+        loadingEffect.finish()
 
-            assertThat(isFinished).isFalse()
-        }
+        assertThat(isFinished).isFalse()
     }
 
     @Test
diff --git a/packages/SystemUI/tests/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseShaderTest.kt b/packages/SystemUI/tests/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseShaderTest.kt
index 549280a809e2..e62ca645d772 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseShaderTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/surfaceeffects/turbulencenoise/TurbulenceNoiseShaderTest.kt
@@ -20,6 +20,7 @@ import androidx.test.filters.SmallTest
 import com.android.systemui.SysuiTestCase
 import com.android.systemui.surfaceeffects.turbulencenoise.TurbulenceNoiseShader.Companion.Type.SIMPLEX_NOISE
 import com.android.systemui.surfaceeffects.turbulencenoise.TurbulenceNoiseShader.Companion.Type.SIMPLEX_NOISE_FRACTAL
+import com.android.systemui.surfaceeffects.turbulencenoise.TurbulenceNoiseShader.Companion.Type.SIMPLEX_NOISE_SPARKLE
 import org.junit.Test
 import org.junit.runner.RunWith
 
@@ -38,4 +39,9 @@ class TurbulenceNoiseShaderTest : SysuiTestCase() {
     fun compilesFractalNoise() {
         turbulenceNoiseShader = TurbulenceNoiseShader(baseType = SIMPLEX_NOISE_FRACTAL)
     }
+
+    @Test
+    fun compilesSparkleNoise() {
+        turbulenceNoiseShader = TurbulenceNoiseShader(baseType = SIMPLEX_NOISE_SPARKLE)
+    }
 }