diff --git a/hrt/prefab/fx/gpuemitter/BaseSimulation.hx b/hrt/prefab/fx/gpuemitter/BaseSimulation.hx
index 7e5bff2f..0f950762 100644
--- a/hrt/prefab/fx/gpuemitter/BaseSimulation.hx
+++ b/hrt/prefab/fx/gpuemitter/BaseSimulation.hx
@@ -7,8 +7,7 @@ class BaseSimulation extends ComputeUtils {
 		}>;
 		@param var particleBuffer : RWPartialBuffer<{
 			speed : Vec3,
-			lifeTime : Float,
-			lifeRatio : Float,
+			life : Float,
 			random : Float,
 		}>;
 
@@ -24,7 +23,7 @@ class BaseSimulation extends ComputeUtils {
 
 		var dt : Float;
 		var speed : Vec3;
-		var lifeTime : Float;
+		var life : Float;
 		var particleRandom : Float;
 		var modelView : Mat4;
 		var instanceID : Int;
@@ -34,7 +33,7 @@ class BaseSimulation extends ComputeUtils {
 		function __init__() {
 			dt = dtParam;
 			speed = particleBuffer[computeVar.globalInvocation.x].speed;
-			lifeTime = particleBuffer[computeVar.globalInvocation.x].lifeTime;
+			life = particleBuffer[computeVar.globalInvocation.x].life;
 			prevModelView = batchBuffer[computeVar.globalInvocation.x].modelView;
 			particleRandom = particleBuffer[computeVar.globalInvocation.x].random;
 			relativeTransform = scaleMatrix(vec3(particleRandom * (maxSize - minSize) + minSize));
@@ -53,7 +52,7 @@ class BaseSimulation extends ComputeUtils {
 				newPos = ((newPos - boundsPos) % boundsSize) + boundsPos;
 			modelView = relativeTransform * align * translationMatrix(newPos);
 			var idx = computeVar.globalInvocation.x;
-			particleBuffer[idx].lifeTime = lifeTime - dt;
+			particleBuffer[idx].life = life - dt;
 			particleBuffer[idx].speed = speed;
 			batchBuffer[idx].modelView = modelView;
 		}
diff --git a/hrt/prefab/fx/gpuemitter/BaseSpawn.hx b/hrt/prefab/fx/gpuemitter/BaseSpawn.hx
index 3b320855..c387fe81 100644
--- a/hrt/prefab/fx/gpuemitter/BaseSpawn.hx
+++ b/hrt/prefab/fx/gpuemitter/BaseSpawn.hx
@@ -7,8 +7,8 @@ class BaseSpawn extends ComputeUtils {
 		}>;
 		@param var particleBuffer : RWPartialBuffer<{
 			speed : Vec3,
+			life : Float,
 			lifeTime : Float,
-			lifeRatio : Float,
 			random : Float,
 		}>;
 		@param var atomic : RWBuffer<Int>;
@@ -23,7 +23,7 @@ class BaseSpawn extends ComputeUtils {
 		@param var rate : Int;
 		@param var absPos : Mat4;
 
-		var lifeTime : Float;
+		var life : Float;
 		var particleRandom : Float;
 		var modelView : Mat4;
 		var relativeTransform : Mat4;
@@ -31,14 +31,14 @@ class BaseSpawn extends ComputeUtils {
 		function __init__() {
 			emitNormal = vec3(0.0, 0.0, 1.0);
 			particleRandom = particleBuffer[computeVar.globalInvocation.x].random;
-			lifeTime = mix(minLifeTime, maxLifeTime, (global.time + particleRandom) % 1.0);
+			life = mix(minLifeTime, maxLifeTime, (global.time + particleRandom) % 1.0);
 			relativeTransform = translationMatrix(vec3(0.0));
 			modelView = relativeTransform * absPos;
 		}
 
 		function main() {
 			var idx = computeVar.globalInvocation.x;
-			if ( FORCED || (!INFINITE && particleBuffer[idx].lifeTime < 0.0) ) {
+			if ( FORCED || (!INFINITE && particleBuffer[idx].life < 0.0) ) {
 				var c = atomicAdd(atomic, 0, 1);
 				if ( FORCED || (!INFINITE && c < rate) ) {
 					batchBuffer[idx].modelView = modelView;
@@ -46,9 +46,9 @@ class BaseSpawn extends ComputeUtils {
 					if ( SPEED_NORMAL )
 						s = emitNormal;
 					particleBuffer[idx].speed = s * maxStartSpeed;
-					particleBuffer[idx].lifeTime = lifeTime;
+					particleBuffer[idx].life = life;
 					// Keep in memory duration of particle to normalize curve update.
-					particleBuffer[idx].lifeRatio = 1.0 / lifeTime;
+					particleBuffer[idx].lifeTime = life;
 				}
 			}
 		}
diff --git a/hrt/prefab/fx/gpuemitter/GPUEmitter.hx b/hrt/prefab/fx/gpuemitter/GPUEmitter.hx
index ceb6b17d..169d27c8 100644
--- a/hrt/prefab/fx/gpuemitter/GPUEmitter.hx
+++ b/hrt/prefab/fx/gpuemitter/GPUEmitter.hx
@@ -116,8 +116,8 @@ class GPUEmitterObject extends h3d.scene.MeshBatch {
 		var p = dataPasses;
 		var particleBufferFormat = hxd.BufferFormat.make([
 			{ name : "speed", type : DVec3 },
+			{ name : "life", type : DFloat },
 			{ name : "lifeTime", type : DFloat },
-			{ name : "lifeRatio", type : DFloat },
 			{ name : "random", type : DFloat },
 			{ name : "padding", type : DVec2 },
 		]);
@@ -130,9 +130,9 @@ class GPUEmitterObject extends h3d.scene.MeshBatch {
 					// floats[i * stride] = 0.0;
 					// floats[i * stride + 1] = 0.0;
 					// floats[i * stride + 2] = 0.0;
-					floats[i * stride + 3] = -1000.0; // lifeTime warmup
+					floats[i * stride + 3] = -1000.0; // life warmup
 					var l = hxd.Math.random() * (data.maxLifeTime - data.minLifeTime) + data.minLifeTime;
-					floats[i * stride + 4] = 1.0 / l; // lifeRatio
+					floats[i * stride + 4] = l; // lifeTime
 					floats[i * stride + 5] = hxd.Math.random(); // random
 					// padding
 					// floats[i * stride + 6] = 0.0;
diff --git a/hrt/prefab/fx/gpuemitter/LocalRotation.hx b/hrt/prefab/fx/gpuemitter/LocalRotation.hx
index e7dd24a3..2b74eeb6 100644
--- a/hrt/prefab/fx/gpuemitter/LocalRotation.hx
+++ b/hrt/prefab/fx/gpuemitter/LocalRotation.hx
@@ -7,13 +7,13 @@ class LocalRotationShader extends ComputeUtils {
 
 		var relativeTransform : Mat4;
 		var dt : Float;
-		var lifeTime : Float;
+		var life : Float;
 		var particleRandom : Float;
 		function main() {
 			var r = 2.0 * random3d(vec2(particleRandom)) - 1.0;
-			relativeTransform = rotateMatrixX(speedRotation * lifeTime * r.x) *
-				rotateMatrixY(speedRotation * lifeTime * r.y) *
-				rotateMatrixZ(speedRotation * lifeTime * r.z) *
+			relativeTransform = rotateMatrixX(speedRotation * life * r.x) *
+				rotateMatrixY(speedRotation * life * r.y) *
+				rotateMatrixZ(speedRotation * life * r.z) *
 				relativeTransform;
 		}
 	}
diff --git a/hrt/prefab/fx/gpuemitter/UpdateParamShader.hx b/hrt/prefab/fx/gpuemitter/UpdateParamShader.hx
index 0b8c52f9..ed38cb69 100644
--- a/hrt/prefab/fx/gpuemitter/UpdateParamShader.hx
+++ b/hrt/prefab/fx/gpuemitter/UpdateParamShader.hx
@@ -5,7 +5,7 @@ class UpdateParamShader extends hxsl.Shader {
 
 		@param var batchBuffer : RWBuffer<Float>;
 
-		@param var particleBuffer : RWPartialBuffer<{ lifeTime : Float, lifeRatio : Float }>;
+		@param var particleBuffer : RWPartialBuffer<{ life : Float, lifeTime : Float }>;
 
 		@param var paramTexture : Sampler2D;
 		@param var stride : Int;
@@ -15,7 +15,7 @@ class UpdateParamShader extends hxsl.Shader {
 
 		function main() {
 			var idx = computeVar.globalInvocation.x;
-			batchBuffer[idx * stride + pos] = paramTexture.get(vec2(1.0 - particleBuffer[idx].lifeTime * particleBuffer[idx].lifeRatio, row)).x;
+			batchBuffer[idx * stride + pos] = paramTexture.get(vec2(1.0 - particleBuffer[idx].life / particleBuffer[idx].lifeTime, row)).x;
 		}
 	}
 }
\ No newline at end of file