void DrawPrimitives(TRectF screen)
{
TColor4 c;
TRectF rect;
rect = new TRectF(5f, 5f, 170f, 170f);
c = TColor4.ColorBlue();
pRender2D.DrawRectangle(ref rect, ref c, E_PRIMITIVE2D_FLAGS.PF_LINE);
rect = new TRectF(10f, 10f, 160f, 160f);
c = TColor4.ColorGray();
pRender2D.DrawRectangle(ref rect, ref c, E_PRIMITIVE2D_FLAGS.PF_FILL);
pRender2D.DrawTriangles(null, ref triangles[0], (uint)triangles.Length, E_PRIMITIVE2D_FLAGS.PF_FILL);
for (int i = 0; i <= 12; i++)
{
TPoint2 p = new TPoint2(screen.x, screen.y) + new TPoint2(15f + 12 * i, 15f + 12 * i);
c = TColor4.ColorTeal();
pRender2D.DrawPoint(ref p, ref c, (uint)(1 + i));
}
for (int i = 0; i < 15; i++)
{
pRender2D.SetLineWidth((uint)(1 + i / 2));
TPoint2 p = new TPoint2(screen.width - i * 20, screen.height);
TPoint2 p1 = new TPoint2(screen.width, screen.height - i * 20);
c = TColor4.ColorOfficialOrange((byte)(255 - i * 17));
pRender2D.DrawLine(ref p, ref p1, ref c);
}
pRender2D.SetLineWidth(2);
TColor4 c1 = TColor4.ColorAqua(), c2 = TColor4.ColorFuchsia(), c3 = new TColor4(), c4 = new TColor4();
pRender2D.SetVerticesColors(ref c1, ref c2, ref c3, ref c4); // override per vertex color for the line
c = new TColor4();
TPoint2 p2 = new TPoint2(screen.width, 75f);
TPoint2 p3 = new TPoint2(200f, screen.height);
pRender2D.DrawLine(ref p2, ref p3, ref c, E_PRIMITIVE2D_FLAGS.PF_VERTICES_COLORS);
pRender2D.SetLineWidth(1);
c1 = TColor4.ColorGray();
c2 = TColor4.ColorMagenta();
c3 = TColor4.ColorOrange();
c4 = TColor4.ColorViolet();
pRender2D.SetVerticesColors(ref c1, ref c2, ref c3, ref c4); // override per vertex color for the rectangle
rect = new TRectF(250f, 25f, 125f, 125f);
pRender2D.DrawRectangle(ref rect, ref c, (E_PRIMITIVE2D_FLAGS.PF_LINE | E_PRIMITIVE2D_FLAGS.PF_VERTICES_COLORS));
c1 = TColor4.ColorBlack(0);
c2 = TColor4.ColorGreen();
c3 = TColor4.ColorGreen();
c4 = TColor4.ColorBlack(0);
pRender2D.SetVerticesColors(ref c1, ref c2, ref c3, ref c4);
rect = new TRectF(260f, 35f, 105f, 105f);
pRender2D.DrawRectangle(ref rect, ref c, (E_PRIMITIVE2D_FLAGS.PF_FILL | E_PRIMITIVE2D_FLAGS.PF_VERTICES_COLORS));
p2 = new TPoint2(125f, 50f);
c = TColor4.ColorOrange();
pRender2D.DrawCircle(ref p2, 40, 32, ref c, E_PRIMITIVE2D_FLAGS.PF_FILL);
c = TColor4.ColorWhite();
for (int i = 0; i < 6; i++)
{
pRender2D.DrawCircle(ref p2, (uint)(10 + i * 5), (uint)(4 + i * 2), ref c, E_PRIMITIVE2D_FLAGS.PF_LINE);
}
p2 = new TPoint2(200f, 250f);
p3 = new TPoint2(110f, 34f);
c = TColor4.ColorViolet();
pRender2D.DrawEllipse(ref p2, ref p3, 64, ref c, E_PRIMITIVE2D_FLAGS.PF_FILL);
pRender2D.SetLineWidth(3);
p3 = new TPoint2(100f, 30f);
c = TColor4.ColorWhite();
pRender2D.DrawEllipse(ref p2, ref p3, 32, ref c, E_PRIMITIVE2D_FLAGS.PF_LINE);
p3 = new TPoint2(80f, 24f);
c = TColor4.ColorFuchsia();
pRender2D.DrawEllipse(ref p2, ref p3, 8, ref c, E_PRIMITIVE2D_FLAGS.PF_FILL);
p3 = new TPoint2(30f, 75f);
c = TColor4.ColorOrange(100);
pRender2D.DrawEllipse(ref p2, ref p3, 64, ref c, E_PRIMITIVE2D_FLAGS.PF_FILL);
pRender2D.DrawPolygon(null, ref star_polygon[0], (uint)triangles.Length, E_PRIMITIVE2D_FLAGS.PF_FILL);
}