static public VertexBuffer CreateBox(GraphicsDevice device, Vector3 size)
{
VertexPositionNormal[] vertices = new VertexPositionNormal[36];
Vector3 topLeftFront = new Vector3(-1.0f, 1.0f, -1.0f) * size;
Vector3 bottomLeftFront = new Vector3(-1.0f, -1.0f, -1.0f) * size;
Vector3 topRightFront = new Vector3(1.0f, 1.0f, -1.0f) * size;
Vector3 bottomRightFront = new Vector3(1.0f, -1.0f, -1.0f) * size;
Vector3 topLeftBack = new Vector3(-1.0f, 1.0f, 1.0f) * size;
Vector3 topRightBack = new Vector3(1.0f, 1.0f, 1.0f) * size;
Vector3 bottomLeftBack = new Vector3(-1.0f, -1.0f, 1.0f) * size;
Vector3 bottomRightBack = new Vector3(1.0f, -1.0f, 1.0f) * size;
Vector3 frontNormal = new Vector3(0.0f, 0.0f, 1.0f) * size;
Vector3 backNormal = new Vector3(0.0f, 0.0f, -1.0f) * size;
Vector3 topNormal = new Vector3(0.0f, 1.0f, 0.0f) * size;
Vector3 bottomNormal = new Vector3(0.0f, -1.0f, 0.0f) * size;
Vector3 leftNormal = new Vector3(-1.0f, 0.0f, 0.0f) * size;
Vector3 rightNormal = new Vector3(1.0f, 0.0f, 0.0f) * size;
// Front face.
vertices[0] = new VertexPositionNormal(topLeftFront, frontNormal);
vertices[1] = new VertexPositionNormal(bottomLeftFront, frontNormal);
vertices[2] = new VertexPositionNormal(topRightFront, frontNormal);
vertices[3] = new VertexPositionNormal(bottomLeftFront, frontNormal);
vertices[4] = new VertexPositionNormal(bottomRightFront, frontNormal);
vertices[5] = new VertexPositionNormal(topRightFront, frontNormal);
// Back face.
vertices[6] = new VertexPositionNormal(topLeftBack, backNormal);
vertices[7] = new VertexPositionNormal(topRightBack, backNormal);
vertices[8] = new VertexPositionNormal(bottomLeftBack, backNormal);
vertices[9] = new VertexPositionNormal(bottomLeftBack, backNormal);
vertices[10] = new VertexPositionNormal(topRightBack, backNormal);
vertices[11] = new VertexPositionNormal(bottomRightBack, backNormal);
// Top face.
vertices[12] = new VertexPositionNormal(topLeftFront, topNormal);
vertices[13] = new VertexPositionNormal(topRightBack, topNormal);
vertices[14] = new VertexPositionNormal(topLeftBack, topNormal);
vertices[15] = new VertexPositionNormal(topLeftFront, topNormal);
vertices[16] = new VertexPositionNormal(topRightFront, topNormal);
vertices[17] = new VertexPositionNormal(topRightBack, topNormal);
// Bottom face.
vertices[18] = new VertexPositionNormal(bottomLeftFront, bottomNormal);
vertices[19] = new VertexPositionNormal(bottomLeftBack, bottomNormal);
vertices[20] = new VertexPositionNormal(bottomRightBack, bottomNormal);
vertices[21] = new VertexPositionNormal(bottomLeftFront, bottomNormal);
vertices[22] = new VertexPositionNormal(bottomRightBack, bottomNormal);
vertices[23] = new VertexPositionNormal(bottomRightFront, bottomNormal);
// Left face.
vertices[24] = new VertexPositionNormal(topLeftFront, leftNormal);
vertices[25] = new VertexPositionNormal(bottomLeftBack, leftNormal);
vertices[26] = new VertexPositionNormal(bottomLeftFront, leftNormal);
vertices[27] = new VertexPositionNormal(topLeftBack, leftNormal);
vertices[28] = new VertexPositionNormal(bottomLeftBack, leftNormal);
vertices[29] = new VertexPositionNormal(topLeftFront, leftNormal);
// Right face.
vertices[30] = new VertexPositionNormal(topRightFront, rightNormal);
vertices[31] = new VertexPositionNormal(bottomRightFront, rightNormal);
vertices[32] = new VertexPositionNormal(bottomRightBack, rightNormal);
vertices[33] = new VertexPositionNormal(topRightBack, rightNormal);
vertices[34] = new VertexPositionNormal(topRightFront, rightNormal);
vertices[35] = new VertexPositionNormal(bottomRightBack, rightNormal);
VertexBuffer buffer = new VertexBuffer(device, new VertexDeclaration(VertexPositionNormal.VertexElements),
vertices.Length, BufferUsage.WriteOnly);
buffer.SetData(vertices);
return(buffer);
}
public static VertexBuffer CreateBox(GraphicsDevice device, Vector3 size)
{
VertexPositionNormal[] vertices = new VertexPositionNormal[36];
Vector3 topLeftFront = new Vector3(-1.0f, 1.0f, -1.0f) * size;
Vector3 bottomLeftFront = new Vector3(-1.0f, -1.0f, -1.0f) * size;
Vector3 topRightFront = new Vector3(1.0f, 1.0f, -1.0f) * size;
Vector3 bottomRightFront = new Vector3(1.0f, -1.0f, -1.0f) * size;
Vector3 topLeftBack = new Vector3(-1.0f, 1.0f, 1.0f) * size;
Vector3 topRightBack = new Vector3(1.0f, 1.0f, 1.0f) * size;
Vector3 bottomLeftBack = new Vector3(-1.0f, -1.0f, 1.0f) * size;
Vector3 bottomRightBack = new Vector3(1.0f, -1.0f, 1.0f) * size;
Vector3 frontNormal = new Vector3(0.0f, 0.0f, 1.0f) * size;
Vector3 backNormal = new Vector3(0.0f, 0.0f, -1.0f) * size;
Vector3 topNormal = new Vector3(0.0f, 1.0f, 0.0f) * size;
Vector3 bottomNormal = new Vector3(0.0f, -1.0f, 0.0f) * size;
Vector3 leftNormal = new Vector3(-1.0f, 0.0f, 0.0f) * size;
Vector3 rightNormal = new Vector3(1.0f, 0.0f, 0.0f) * size;
// Front face.
vertices[0] = new VertexPositionNormal(topLeftFront, frontNormal);
vertices[1] = new VertexPositionNormal(bottomLeftFront, frontNormal);
vertices[2] = new VertexPositionNormal(topRightFront, frontNormal);
vertices[3] = new VertexPositionNormal(bottomLeftFront, frontNormal);
vertices[4] = new VertexPositionNormal(bottomRightFront, frontNormal);
vertices[5] = new VertexPositionNormal(topRightFront, frontNormal);
// Back face.
vertices[6] = new VertexPositionNormal(topLeftBack, backNormal);
vertices[7] = new VertexPositionNormal(topRightBack, backNormal);
vertices[8] = new VertexPositionNormal(bottomLeftBack, backNormal);
vertices[9] = new VertexPositionNormal(bottomLeftBack, backNormal);
vertices[10] = new VertexPositionNormal(topRightBack, backNormal);
vertices[11] = new VertexPositionNormal(bottomRightBack, backNormal);
// Top face.
vertices[12] = new VertexPositionNormal(topLeftFront, topNormal);
vertices[13] = new VertexPositionNormal(topRightBack, topNormal);
vertices[14] = new VertexPositionNormal(topLeftBack, topNormal);
vertices[15] = new VertexPositionNormal(topLeftFront, topNormal);
vertices[16] = new VertexPositionNormal(topRightFront, topNormal);
vertices[17] = new VertexPositionNormal(topRightBack, topNormal);
// Bottom face.
vertices[18] = new VertexPositionNormal(bottomLeftFront, bottomNormal);
vertices[19] = new VertexPositionNormal(bottomLeftBack, bottomNormal);
vertices[20] = new VertexPositionNormal(bottomRightBack, bottomNormal);
vertices[21] = new VertexPositionNormal(bottomLeftFront, bottomNormal);
vertices[22] = new VertexPositionNormal(bottomRightBack, bottomNormal);
vertices[23] = new VertexPositionNormal(bottomRightFront, bottomNormal);
// Left face.
vertices[24] = new VertexPositionNormal(topLeftFront, leftNormal);
vertices[25] = new VertexPositionNormal(bottomLeftBack, leftNormal);
vertices[26] = new VertexPositionNormal(bottomLeftFront, leftNormal);
vertices[27] = new VertexPositionNormal(topLeftBack, leftNormal);
vertices[28] = new VertexPositionNormal(bottomLeftBack, leftNormal);
vertices[29] = new VertexPositionNormal(topLeftFront, leftNormal);
// Right face.
vertices[30] = new VertexPositionNormal(topRightFront, rightNormal);
vertices[31] = new VertexPositionNormal(bottomRightFront, rightNormal);
vertices[32] = new VertexPositionNormal(bottomRightBack, rightNormal);
vertices[33] = new VertexPositionNormal(topRightBack, rightNormal);
vertices[34] = new VertexPositionNormal(topRightFront, rightNormal);
vertices[35] = new VertexPositionNormal(bottomRightBack, rightNormal);
VertexBuffer buffer = new VertexBuffer(device,
VertexPositionNormal.SizeInBytes * vertices.Length,
BufferUsage.WriteOnly);
buffer.SetData(vertices);
return buffer;
}
