public void lineRenderTeapot()
{
var lines = new List <List <(Vector2, Vector2, Color)> >();
var verts = ObjFileLoader.LoadVertsFromObjAtPath(new System.IO.FileInfo("../../../../../geometry_models/teapot.obj"))
.Select(x => Vector4.Add(x, new Vector4(5, 5, 0, 0))).ToArray();
var tris = ObjFileLoader.LoadTrisFromObjAtPath(new System.IO.FileInfo("../../../../../geometry_models/teapot.obj"));
var trilines = tris.SelectMany(x =>
new List <(Vector2, Vector2, Color)>()
{
(new Vector2(verts[x.vertIndexList[0] - 1].X * 50, verts[x.vertIndexList[0] - 1].Y * 50),
new Vector2(verts[x.vertIndexList[1] - 1].X * 50, verts[x.vertIndexList[1] - 1].Y * 50), Color.White),
(new Vector2(verts[x.vertIndexList[1] - 1].X * 50, verts[x.vertIndexList[1] - 1].Y * 50),
new Vector2(verts[x.vertIndexList[2] - 1].X * 50, verts[x.vertIndexList[2] - 1].Y * 50), Color.White),
(new Vector2(verts[x.vertIndexList[2] - 1].X * 50, verts[x.vertIndexList[2] - 1].Y * 50),
new Vector2(verts[x.vertIndexList[0] - 1].X * 50, verts[x.vertIndexList[0] - 1].Y * 50), Color.White),
}
);
lines.Add(trilines.ToList());
var renderer = new LineRenderer2d(640, 480, lines);
var image = new ppmImage(640, 480, 255);
image.Colors = renderer.Render();
Assert.AreEqual(18702, image.Colors.Where(x => x == Color.White).Count());
System.IO.File.WriteAllBytes("../../../linetest_teapot.ppm", image.toByteArray());
}
public void TriangleRenderKnot1WithVertsDirect()
{
var verts = ObjFileLoader.LoadVertsFromObjAtPath(new System.IO.FileInfo("../../../../../geometry_models/knot/knot.obj"))
//flip verts since image top is 0,0
.Select(x => Vector4.Multiply(x, new Vector4(1.0f, 1.0f, 1.0f, 1.0f)))
//scale and offset.
.Select(x => Vector4.Multiply(Vector4.Add(x, new Vector4(5, 5, 0, 0)), 120)).ToArray();
var tris = ObjFileLoader.LoadTrisFromObjAtPath(new System.IO.FileInfo("../../../../../geometry_models/knot/knot.obj"));
var renderer = new Triangle2dRenderer(1024, 768, new List <IEnumerable <TriangleFace> > {
tris
});
renderer.VertexData = verts.Select(x => new Vector3(x.X, x.Y, x.Z)).ToArray();
var image = new ppmImage(1024, 768, 255);
image.Colors = renderer.Render();
Assert.AreEqual(741639, image.Colors.Where(x => x == Color.Red).Count());
System.IO.File.WriteAllBytes("../../../knotTestVertsDirect.ppm", image.toByteArray());
}
