public void MakeCurrent()
{
if (WGL.wglMakeCurrent(this.intptr_1, this.intptr_2) == 0)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
public void Render()
{
// Render OpenGL contents
if (DC == 0 || RC == 0)
{
return;
}
WGL.wglMakeCurrent(DC, RC);
// Clear buffers and load frame
GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
GL.glBindTexture(GL.GL_TEXTURE_2D, textureData[2]);
camera.applyCamera();
GL.glLoadIdentity();
GL.glDisable(GL.GL_TEXTURE_2D);
_sat.Render();
GL.glEnable(GL.GL_TEXTURE_2D);
GL.glBindTexture(GL.GL_TEXTURE_2D, textureData[0]);
_earth.Render();
// Flush and swap
GL.glFlush();
WGL.wglSwapBuffers(DC);
}
private void initRenderingContext()
{
m_uint_RC = WGL.wglCreateContext(m_uint_DC);
if (m_uint_RC == 0)
{
MessageBox.Show("Unable to get rendering context");
return;
}
if (WGL.wglMakeCurrent(m_uint_DC, m_uint_RC) == 0)
{
MessageBox.Show("Unable to make rendering context current");
return;
}
}
/// <summary>
/// Override OnPaint to draw our gl scene
/// </summary>
protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
{
float rot1 = 0, rot2 = 0;
if (DC == 0 || RC == 0)
{
return;
}
if (lastMs == 0)
{
lastMs = DateTime.Now.Ticks;
}
long currentMs = DateTime.Now.Ticks;
long milliseconds = (currentMs - lastMs) / 10000;
lastMs = currentMs; //Calculate elapsed timer
WGL.wglMakeCurrent(DC, RC);
GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
GL.glLoadIdentity();
GL.glTranslatef(0.0f, 0.0f, -6.0f); // Translate 6 Units Into The Screen
GL.glRotatef(angle, 0.0f, 1.0f, 0.0f); // Rotate On The Y-Axis By angle
for (rot1 = 0; rot1 < 2; rot1++) // 2 Passes
{
GL.glRotatef(90.0f, 0.0f, 1.0f, 0.0f); // Rotate 90 Degrees On The Y-Axis
GL.glRotatef(180.0f, 1.0f, 0.0f, 0.0f); // Rotate 180 Degress On The X-Axis
for (rot2 = 0; rot2 < 2; rot2++) // 2 Passes
{
GL.glRotatef(180.0f, 0.0f, 1.0f, 0.0f); // Rotate 180 Degrees On The Y-Axis
GL.glBegin(GL.GL_TRIANGLES); // Begin Drawing Triangles
GL.glColor3f(1.0f, 0.0f, 0.0f); GL.glVertex3f(0.0f, 1.0f, 0.0f);
GL.glColor3f(0.0f, 1.0f, 0.0f); GL.glVertex3f(-1.0f, -1.0f, 1.0f);
GL.glColor3f(0.0f, 0.0f, 1.0f); GL.glVertex3f(1.0f, -1.0f, 1.0f);
GL.glEnd(); // Done Drawing Triangles
}
}
GL.glFlush(); // Flush The GL Rendering Pipeline
WGL.wglSwapBuffers(DC);
angle += (float)(milliseconds) / 5.0f;
}
