diff --git a/libraries/entities-renderer/src/textured_particle.slv b/libraries/entities-renderer/src/textured_particle.slv
index 5c47fdd1e9..dd503caee2 100644
--- a/libraries/entities-renderer/src/textured_particle.slv
+++ b/libraries/entities-renderer/src/textured_particle.slv
@@ -64,31 +64,31 @@ float interpolate3Points(float y1, float y2, float y3, float u) {
         return y2;
     }
 
-	float slope;
+	float halfSlope;
     if ((y2 >= y1 && y2 >= y3) || (y2 <= y1 && y2 <= y3)) {
         // U or inverted-U shape.
         // Make the slope at y2 = 0, which means that the control points half way between the value points have the value y2.
-		slope = 0.0f;
+		halfSlope = 0.0f;
 
     } else {
         // L or inverted and/or mirrored L shape.
         // Make the slope at y2 be the slope between y1 and y3, up to a maximum of double the minimum of the slopes between y1
         // and y2, and y2 and y3. Use this slope to calculate the control points half way between the value points.
         // Note: The maximum ensures that the control points and therefore the interpolated values stay between y1 and y3.
-        float slope = y3 - y1;
-        float doubleSlope12 = 2.0f * (y2 - y1);
-        float doubleSlope23 = 2.0f * (y3 - y2);
-        if (abs(slope) > abs(doubleSlope12)) {
-            slope = doubleSlope12;
-        } else if (abs(slope) > abs(doubleSlope23)) {
-            slope = doubleSlope23;
+        halfSlope = (y3 - y1) / 2.0f;
+        float slope12 = y2 - y1;
+        float slope23 = y3 - y2;
+        if (abs(halfSlope) > abs(slope12)) {
+            halfSlope = slope12;
+        } else if (abs(halfSlope) > abs(slope23)) {
+            halfSlope = slope23;
         }
     }
 
     float stepU = step(0.5f, u);  // 0.0 if u < 0.5, 1.0 otherwise.
     float slopeSign = 2.0f * stepU - 1.0f; // -1.0 if u < 0.5, 1.0 otherwise
     float start = (1.0f - stepU) * y1 + stepU * y2;  // y1 if u < 0.5, y2 otherwise
-    float middle = y2 + slopeSign * slope / 2.0f;
+    float middle = y2 + slopeSign * halfSlope;
     float finish = (1.0f - stepU) * y2 + stepU * y3; // y2 if u < 0.5, y3 otherwise
     float v = 2.0f * u - step(0.5f, u);  // 0.0-0.5 -> 0.0-1.0 and 0.5-1.0 -> 0.0-1.0
     return bezierInterpolate(start, middle, finish, v);