diff --git a/orx-jvm/orx-dnk3/src/main/kotlin/gltf/GltfScene.kt b/orx-jvm/orx-dnk3/src/main/kotlin/gltf/GltfScene.kt
index 4573e731..0cc27414 100644
--- a/orx-jvm/orx-dnk3/src/main/kotlin/gltf/GltfScene.kt
+++ b/orx-jvm/orx-dnk3/src/main/kotlin/gltf/GltfScene.kt
@@ -278,9 +278,16 @@ fun GltfFile.buildSceneNodes(): GltfSceneData {
             ibmData.order(ByteOrder.nativeOrder())
             (ibmData as Buffer).position(ibmAccessor.byteOffset + (ibmBufferView.byteOffset ?: 0))
 
-            require(ibmAccessor.type == "MAT4")
-            require(ibmAccessor.componentType == GLTF_FLOAT)
-            require(ibmAccessor.count == joints.size)
+            require(ibmAccessor.type == "MAT4") {
+                "Unsupported inverse bind matrix type: ${ibmAccessor.type}"
+            }
+            require(ibmAccessor.componentType == GLTF_FLOAT) {
+                "Unsupported inverse bind matrix component type: ${ibmAccessor.componentType}"
+            }
+            require(ibmAccessor.count == joints.size) {
+                "Mismatch between inverse bind matrix count (${ibmAccessor.count}) and joints size (${joints.size})"
+
+            }
             val ibms = (0 until ibmAccessor.count).map {
                 val array = DoubleArray(16)
                 for (i in 0 until 16) {
diff --git a/orx-marching-squares/src/commonMain/kotlin/MarchingSquares.kt b/orx-marching-squares/src/commonMain/kotlin/MarchingSquares.kt
index 54288dcf..44e68dbe 100644
--- a/orx-marching-squares/src/commonMain/kotlin/MarchingSquares.kt
+++ b/orx-marching-squares/src/commonMain/kotlin/MarchingSquares.kt
@@ -56,13 +56,16 @@ fun findContours(
 
             fun blend(v1: Double, v2: Double): Double {
                 if (useInterpolation) {
-                    require(v1 == v1 && v2 == v2)
+                    require(!v1.isNaN() && !v2.isNaN()) {
+                        "Input values v1=$v1 or v2=$v2 are NaN, which is not allowed."
+                    }
                     val f1 = min(v1, v2)
                     val f2 = max(v1, v2)
                     val v = (-f1) / (f2 - f1)
 
-                    require(v == v)
-                    require(v in 0.0..1.0)
+                    require(v == v && v in 0.0..1.0) {
+                        "Invalid value calculated during interpolation: v=$v"
+                    }
 
                     return if (f1 == v1) {
                         v
diff --git a/orx-noise/src/commonMain/kotlin/UniformRandom.kt b/orx-noise/src/commonMain/kotlin/UniformRandom.kt
index 7144ea46..e19224b9 100644
--- a/orx-noise/src/commonMain/kotlin/UniformRandom.kt
+++ b/orx-noise/src/commonMain/kotlin/UniformRandom.kt
@@ -172,11 +172,6 @@ fun Vector2.Companion.uniformRing(
     outerRadius: Double = 1.0,
     random: Random = Random.Default
 ): Vector2 {
-
-    require(innerRadius <= outerRadius) {
-
-    }
-
     val eps = 1E-6
 
     if (abs(innerRadius - outerRadius) < eps) {
diff --git a/orx-turtle/src/commonMain/kotlin/NinjaTurtle.kt b/orx-turtle/src/commonMain/kotlin/NinjaTurtle.kt
index 6fa4618b..d040445c 100644
--- a/orx-turtle/src/commonMain/kotlin/NinjaTurtle.kt
+++ b/orx-turtle/src/commonMain/kotlin/NinjaTurtle.kt
@@ -39,7 +39,11 @@ fun Turtle.segment(
     })
 
     require(position.distanceTo(segment0.start) < 1E-5) {
-        """${position}, ${segment0.start}"""
+        "Alignment error: Turtle position ${position} is not aligned with segment start ${segment0.start}. Distance: ${
+            position.distanceTo(
+                segment0.start
+            )
+        }"
     }
     cb.segment(segment0)
     orientation = cb.segments.last().pose(1.0).matrix33.matrix44