void Render()
{
Gl.Clear(GlClearBufferMask.ColorBufferBit);
Gl.Begin(GlPrimitiveType.Quads);
Gl.ActiveTexture(GlTextureUnit.Texture0);
Gl.BindTexture(GlTextureTarget.Texture2d, Texture);
Gl.TexCoord2f(0, 0);
Gl.Vertex2f(-1, -1);
Gl.TexCoord2f(1, 0);
Gl.Vertex2f(1, -1);
Gl.TexCoord2f(1, 1);
Gl.Vertex2f(1, 1);
Gl.TexCoord2f(0, 1);
Gl.Vertex2f(-1, 1);
Gl.End();
}
void Render()
{
Gl.Rotated(1, Axis[0], Axis[1], Axis[2]);
Gl.PushMatrix();
Gl.Translated(0, 0, -1.575);
Gl.Scaled(1, 1, 1.3);
Axis[0] += RandomDouble() / 4;
Axis[1] += RandomDouble() / 4;
Axis[2] += RandomDouble() / 4;
NormalizeAxis();
Gl.Clear(GlClearBufferMask.ColorBufferBit | GlClearBufferMask.DepthBufferBit);
Gl.Color3f(1, 1, 1);
Gl.Begin(GlPrimitiveType.Triangles);
for (int i = 0; i < TeapotPatches.GetLength(0); ++i)
{
double fu;
for (double u = 0; u < 1; u = fu)
{
fu = u + DeltaUV;
double[] ab = null;
double[] bb = null;
double fv;
for (double v = 0; v < 1; v = fv)
{
fv = v + DeltaUV;
double[] aa;
if (ab == null)
{
aa = CalculateSurface(i, u, v);
}
else
{
aa = ab;
}
double[] ba;
if (bb == null)
{
ba = CalculateSurface(i, fu, v);
}
else
{
ba = bb;
}
ab = CalculateSurface(i, u, fv);
bb = CalculateSurface(i, fu, fv);
Gl.Vertex3dv(aa);
Gl.Vertex3dv(ab);
Gl.Vertex3dv(ba);
Gl.Vertex3dv(bb);
Gl.Vertex3dv(ab);
Gl.Vertex3dv(ba);
aa[1] *= -1;
ba[1] *= -1;
ab[1] *= -1;
bb[1] *= -1;
Gl.Vertex3dv(aa);
Gl.Vertex3dv(ab);
Gl.Vertex3dv(ba);
Gl.Vertex3dv(bb);
Gl.Vertex3dv(ab);
Gl.Vertex3dv(ba);
if (i < RotateXPatches)
{
aa[0] *= -1;
ba[0] *= -1;
ab[0] *= -1;
bb[0] *= -1;
Gl.Vertex3dv(aa);
Gl.Vertex3dv(ab);
Gl.Vertex3dv(ba);
Gl.Vertex3dv(bb);
Gl.Vertex3dv(ab);
Gl.Vertex3dv(ba);
aa[1] *= -1;
ba[1] *= -1;
ab[1] *= -1;
bb[1] *= -1;
Gl.Vertex3dv(aa);
Gl.Vertex3dv(ab);
Gl.Vertex3dv(ba);
Gl.Vertex3dv(bb);
Gl.Vertex3dv(ab);
Gl.Vertex3dv(ba);
ab[0] *= -1;
bb[0] *= -1;
}
else
{
ab[1] *= -1;
bb[1] *= -1;
}
}
}
}
Gl.End();
Gl.PopMatrix();
}
void Render()
{
Gl.Rotatef(1, Axis[0], Axis[1], Axis[2]);
Axis[0] += RandomFloat() / 4;
Axis[1] += RandomFloat() / 4;
Axis[2] += RandomFloat() / 4;
NormalizeAxis();
Gl.Clear(GlClearBufferMask.ColorBufferBit | GlClearBufferMask.DepthBufferBit);
Gl.Begin(GlPrimitiveType.Triangles);
Gl.Color3f(1, 0, 0);
Gl.Vertex3f(1, 1, 1);
Gl.Vertex3f(1, -1, 1);
Gl.Vertex3f(-1, 1, 1);
Gl.Vertex3f(-1, -1, 1);
Gl.Vertex3f(1, -1, 1);
Gl.Vertex3f(-1, 1, 1);
Gl.Color3f(0, 1, 1);
Gl.Vertex3f(1, 1, -1);
Gl.Vertex3f(1, -1, -1);
Gl.Vertex3f(-1, 1, -1);
Gl.Vertex3f(-1, -1, -1);
Gl.Vertex3f(1, -1, -1);
Gl.Vertex3f(-1, 1, -1);
Gl.Color3f(0, 1, 0);
Gl.Vertex3f(1, 1, 1);
Gl.Vertex3f(1, 1, -1);
Gl.Vertex3f(1, -1, 1);
Gl.Vertex3f(1, -1, -1);
Gl.Vertex3f(1, 1, -1);
Gl.Vertex3f(1, -1, 1);
Gl.Color3f(1, 0, 1);
Gl.Vertex3f(-1, 1, 1);
Gl.Vertex3f(-1, 1, -1);
Gl.Vertex3f(-1, -1, 1);
Gl.Vertex3f(-1, -1, -1);
Gl.Vertex3f(-1, 1, -1);
Gl.Vertex3f(-1, -1, 1);
Gl.Color3f(0, 0, 1);
Gl.Vertex3f(1, 1, 1);
Gl.Vertex3f(1, 1, -1);
Gl.Vertex3f(-1, 1, 1);
Gl.Vertex3f(-1, 1, -1);
Gl.Vertex3f(1, 1, -1);
Gl.Vertex3f(-1, 1, 1);
Gl.Color3f(1, 1, 0);
Gl.Vertex3f(1, -1, 1);
Gl.Vertex3f(1, -1, -1);
Gl.Vertex3f(-1, -1, 1);
Gl.Vertex3f(-1, -1, -1);
Gl.Vertex3f(1, -1, -1);
Gl.Vertex3f(-1, -1, 1);
Gl.End();
}
void Render()
{
if (UpdateColorsEverFrame)
{
++ColorOffset;
}
Gl.Clear(GlClearBufferMask.ColorBufferBit);
Gl.Begin(GlPrimitiveType.Triangles);
Gl.Color3f(0.5f, 0.5f, 0.5f);
Gl.Vertex2f(0, 0);
Gl.Color3fv(Colors[(ColorOffset + 0) % 8]);
Gl.Vertex2f(1, 1);
Gl.Color3fv(Colors[(ColorOffset + 1) % 8]);
Gl.Vertex2f(0, 1);
Gl.Color3f(0.5f, 0.5f, 0.5f);
Gl.Vertex2f(0, 0);
Gl.Color3fv(Colors[(ColorOffset + 1) % 8]);
Gl.Vertex2f(0, 1);
Gl.Color3fv(Colors[(ColorOffset + 2) % 8]);
Gl.Vertex2f(-1, 1);
Gl.Color3f(0.5f, 0.5f, 0.5f);
Gl.Vertex2f(0, 0);
Gl.Color3fv(Colors[(ColorOffset + 2) % 8]);
Gl.Vertex2f(-1, 1);
Gl.Color3fv(Colors[(ColorOffset + 3) % 8]);
Gl.Vertex2f(-1, 0);
Gl.Color3f(0.5f, 0.5f, 0.5f);
Gl.Vertex2f(0, 0);
Gl.Color3fv(Colors[(ColorOffset + 3) % 8]);
Gl.Vertex2f(-1, 0);
Gl.Color3fv(Colors[(ColorOffset + 4) % 8]);
Gl.Vertex2f(-1, -1);
Gl.Color3f(0.5f, 0.5f, 0.5f);
Gl.Vertex2f(0, 0);
Gl.Color3fv(Colors[(ColorOffset + 4) % 8]);
Gl.Vertex2f(-1, -1);
Gl.Color3fv(Colors[(ColorOffset + 5) % 8]);
Gl.Vertex2f(0, -1);
Gl.Color3f(0.5f, 0.5f, 0.5f);
Gl.Vertex2f(0, 0);
Gl.Color3fv(Colors[(ColorOffset + 5) % 8]);
Gl.Vertex2f(0, -1);
Gl.Color3fv(Colors[(ColorOffset + 6) % 8]);
Gl.Vertex2f(1, -1);
Gl.Color3f(0.5f, 0.5f, 0.5f);
Gl.Vertex2f(0, 0);
Gl.Color3fv(Colors[(ColorOffset + 6) % 8]);
Gl.Vertex2f(1, -1);
Gl.Color3fv(Colors[(ColorOffset + 7) % 8]);
Gl.Vertex2f(1, 0);
Gl.Color3f(0.5f, 0.5f, 0.5f);
Gl.Vertex2f(0, 0);
Gl.Color3fv(Colors[(ColorOffset + 7) % 8]);
Gl.Vertex2f(1, 0);
Gl.Color3fv(Colors[(ColorOffset + 0) % 8]);
Gl.Vertex2f(1, 1);
Gl.End();
}