diff --git a/src/client/main.ts b/src/client/main.ts
index 9e709a2..6ac0173 100644
--- a/src/client/main.ts
+++ b/src/client/main.ts
@@ -65,55 +65,13 @@ async function main() {
 		instanceNumber: parseInt(instanceNumber),
 		squareRotation: 0,
 	};
+	let length: number = 0;
+	let buffers: any;
+	updateObj(data, true);
 
-	const [
-		positions,
-		normals,
-		uvs,
-		indices,
-	] = convert(data);
-	let x = 0;
-	let y = 0;
-	let z = 0;
-	let maxx = positions[0];
-	let maxy = positions[1];
-	let maxz = positions[2];
-	let minx = positions[0];
-	let miny = positions[1];
-	let minz = positions[2];
-	for (let i = 0; i < positions.length; i++) {
-		if (i % 3 == 0) {
-			if (positions[i] > maxx) {
-				maxx = positions[i];
-			} else if (positions[i] < minx) {
-				minx = positions[i];
-			}
-			x += positions[i];
-		} else if (i % 3 == 1) {
-			if (positions[i] > maxy) {
-				maxy = positions[i];
-			} else if (positions[i] < miny) {
-				miny = positions[i];
-			}
-			y += positions[i];
-		} else {
-			if (positions[i] > maxz) {
-				maxz = positions[i];
-			} else if (positions[i] < minz) {
-				minz = positions[i];
-			}
-			z += positions[i];
-		}
-	}
-	params.range = Math.max(maxx - minx, maxy - miny, maxz - minz);
-	params.avg.x = x / (positions.length / 3);
-	params.avg.y = y / (positions.length / 3);
-	params.avg.z = z / (positions.length / 3);
-	let length = indices.length;
 	let [shaderProgram, fragmentShader]: any = initShaderProgram(gl,
 		vsSource,
 		fsSource4);
-
 	let programInfo: any = {
 		program: shaderProgram,
 		attribLocations: {
@@ -139,7 +97,6 @@ async function main() {
 	};
 
 	let texture = loadTexture(gl, '/static/textures/racer.png');
-	let buffers = initBuffers(gl, positions, indices, normals, uvs);
 	let then = 0;
 	let changed = false;
 
@@ -167,8 +124,9 @@ async function main() {
 	/**
 	 * Pushes a new obj file to the gl buffer
 	 * @param {string} data the obj file to push
+	 * @param {boolean} firstCall is it first object updated ?
 	 */
-	function updateObj(data: string) {
+	function updateObj(data: string, firstCall: boolean = false) {
 		const [
 			positions,
 			normals,
@@ -213,7 +171,9 @@ async function main() {
 		params.avg.x = x / (positions.length / 3);
 		params.avg.y = y / (positions.length / 3);
 		params.avg.z = z / (positions.length / 3);
-		deleteBuffers(gl, buffers);
+		if (!firstCall) {
+			deleteBuffers(gl, buffers);
+		}
 		buffers = initBuffers(gl, positions, indices, normals, uvs);
 	}