public void Render(Camera camera, Mesh[] meshes, IRender render)
{
var viewMatrix = Matrix.LookAtLH(camera.Position, camera.Target, Vector3.UnitY);
var projectionMatrix = Matrix.PerspectiveFovLH(
0.5f,
(float)renderWidth / renderHeight,
0.01f,
1.0f);
foreach (var mesh in meshes)
{
var worldMatrex = Matrix.RotationYawPitchRoll(
mesh.Rotation.X,
mesh.Rotation.Y,
mesh.Rotation.Z)*
Matrix.Translation(mesh.Position);
var transformMatrix = worldMatrex*viewMatrix*projectionMatrix;
render.Render(this,mesh,transformMatrix);
}
}
public static List<Mesh> LoadMeshes(string path)
{
var meshes = new List<Mesh>();
dynamic jsonObject = JsonConvert.DeserializeObject(File.ReadAllText(path));
for (var meshIndex = 0; meshIndex < jsonObject.meshes.Count; meshIndex++)
{
var verticesArray = jsonObject.meshes[meshIndex].vertices;
var indicesArray = jsonObject.meshes[meshIndex].indices;
var uvCount = jsonObject.meshes[meshIndex].uvCount.Value;
var verticesStep = 1;
switch ((int) uvCount)
{
case 0:
verticesStep = 6;
break;
case 1:
verticesStep = 8;
break;
case 2:
verticesStep = 10;
break;
}
var verticesCount = verticesArray.Count/verticesStep;
// number of faces is logically the size of the array divided by 3 (A, B, C)
var facesCount = indicesArray.Count/3;
var mesh = new Mesh(jsonObject.meshes[meshIndex].name.Value, verticesCount, facesCount);
// Filling the Vertices array of our mesh first
for (var index = 0; index < verticesCount; index++)
{
var x = (float) verticesArray[index*verticesStep].Value;
var y = (float) verticesArray[index*verticesStep + 1].Value;
var z = (float) verticesArray[index*verticesStep + 2].Value;
mesh.Vertices[index] = new Vector3(x, y, z);
}
// Then filling the Faces array
for (var index = 0; index < facesCount; index++)
{
var a = (int) indicesArray[index*3].Value;
var b = (int) indicesArray[index*3 + 1].Value;
var c = (int) indicesArray[index*3 + 2].Value;
mesh.Faces[index] = new Face(a, b, c);
}
// Getting the position you've set in Blender
var position = jsonObject.meshes[meshIndex].position;
mesh.Position = new Vector3((float) position[0].Value, (float) position[1].Value, (float) position[2].Value);
meshes.Add(mesh);
}
return meshes;
}