void CalcBounds()
{
if (Meshes.Count == 0)
{
BoundingBox = AABB.Empty;
BoundingSphere = BoundSphere.Empty;
}
BoundingBox = AABB.CalculateAABB(Meshes.SelectMany(M => M.GetVertices().Select(V => V.Position)));
BoundingSphere = BoundSphere.FromAABB(BoundingBox);
}
public AABB CalculateAABB()
{
AABB Bounds = MapModels[0].BoundingBox;
for (int ModelIdx = 1; ModelIdx < MapModels.Length; ModelIdx++)
{
Vector3[] Verts = new Vector3[16];
Array.Copy(Bounds.GetVertices().ToArray(), 0, Verts, 0, 8);
Array.Copy(MapModels[ModelIdx].BoundingBox.GetVertices().ToArray(), 0, Verts, 8, 8);
Bounds = AABB.CalculateAABB(Verts);
}
return(Bounds);
}
public static void Init()
{
Engine.GBuffer = new RenderTexture(Engine.Window.WindowWidth, Engine.Window.WindowHeight, IsGBuffer: true);
Engine.GBuffer.Framebuffer.SetLabel(OpenGL.ObjectIdentifier.Framebuffer, "GBuffer");
Engine.ScreenRT = new RenderTexture(Engine.Window.WindowWidth, Engine.Window.WindowHeight);
Engine.ScreenRT.Framebuffer.SetLabel(OpenGL.ObjectIdentifier.Framebuffer, "ScreenRT");
Engine.ScreenQuad = new Mesh2D();
Engine.ScreenQuad.PrimitiveType = PrimitiveType.Triangles;
Engine.ScreenQuad.SetVertices(Utils.EmitRectangleTris(new Vertex2[6], 0, 0, 0, Engine.Window.WindowWidth, Engine.Window.WindowHeight, 0, 0, 1, 1, Color.White));
Engine.ScreenQuad.VAO.SetLabel(OpenGL.ObjectIdentifier.VertexArray, "Screen Quad");
var Msh = FishGfx.Formats.Obj.Load("content/models/sphere_2.obj").First();
Vertex3[] MshVerts = Msh.Vertices.ToArray();
AABB PointLightBound = AABB.CalculateAABB(MshVerts.Select(V => V.Position));
for (int i = 0; i < MshVerts.Length; i++)
{
MshVerts[i].Position /= PointLightBound.Size;
}
Engine.PointLightMesh = new libTechMesh();
Engine.PointLightMesh.SetVertices(MshVerts);
Engine.PointLightMesh.SetLabel("Point Light Volume");
// Screen framebuffer
OpenGL.Gl.Get(OpenGL.Gl.MAX_SAMPLES, out int MaxMSAA);
if (Engine.MSAA > MaxMSAA)
{
Engine.MSAA.Value = MaxMSAA;
}
LoadShaders();
}