diff --git a/runelite-api/src/main/java/net/runelite/api/Perspective.java b/runelite-api/src/main/java/net/runelite/api/Perspective.java
index 38a86eea7b..64ab37be46 100644
--- a/runelite-api/src/main/java/net/runelite/api/Perspective.java
+++ b/runelite-api/src/main/java/net/runelite/api/Perspective.java
@@ -719,19 +719,13 @@ public class Perspective
 
 	private static SimplePolygon calculateAABB(Client client, Model m, int jauOrient, int x, int y, int z)
 	{
-		int ex = m.getExtremeX();
-		if (ex == -1)
-		{
-			// dynamic models don't get stored when they render where this normally happens
-			m.calculateBoundsCylinder();
-			m.calculateExtreme(0);
-			ex = m.getExtremeX();
-		}
+		m.calculateExtreme(jauOrient);
 
 		int x1 = m.getCenterX();
 		int y1 = m.getCenterZ();
 		int z1 = m.getCenterY();
 
+		int ex = m.getExtremeX();
 		int ey = m.getExtremeZ();
 		int ez = m.getExtremeY();
 
@@ -759,7 +753,7 @@ public class Perspective
 		int[] x2d = new int[8];
 		int[] y2d = new int[8];
 
-		modelToCanvas(client, 8, x, y, z, jauOrient, xa, ya, za, x2d, y2d);
+		modelToCanvasCpu(client, 8, x, y, z, 0, xa, ya, za, x2d, y2d);
 
 		return Jarvis.convexHull(x2d, y2d);
 	}
@@ -770,7 +764,7 @@ public class Perspective
 		int[] y2d = new int[m.getVerticesCount()];
 		final int[] faceColors3 = m.getFaceColors3();
 
-		Perspective.modelToCanvas(client,
+		Perspective.modelToCanvasCpu(client,
 			m.getVerticesCount(),
 			x, y, z,
 			jauOrient,