public override void Draw (Gdk.Rectangle viewport, Texture previous, Texture next)
{
for (int i = 0; i < color.Length; i++)
color [i] = percent;
bool supported = GlExtensionLoader.LoadExtension ("GL_ARB_multitexture");
if (!supported) {
System.Console.WriteLine ("GL_ARB_multitexture not supported");
return;
}
Gl.glViewport (0, 0, viewport.Width, viewport.Height);
Gl.glMatrixMode (Gl.GL_PROJECTION);
Gl.glLoadIdentity ();
Glu.gluOrtho2D (0, viewport.Width, 0, viewport.Height);
Gl.glMatrixMode (Gl.GL_MODELVIEW);
Gl.glLoadIdentity ();
Gl.glDisable (Gl.GL_TEXTURE_RECTANGLE_ARB);
Gl.glActiveTextureARB (Gl.GL_TEXTURE0);
Gl.glEnable (Gl.GL_TEXTURE_RECTANGLE_ARB);
//Gl.glTexEnvi(Gl.GL_TEXTURE_ENV, Gl.GL_TEXTURE_ENV_MODE, Gl.GL_REPLACE);
next.Bind ();
Fit (viewport, next);
Gl.glActiveTextureARB (Gl.GL_TEXTURE1);
//Gl.glDisable (Gl.GL_TEXTURE_RECTANGLE_ARB);
Gl.glEnable (Gl.GL_TEXTURE_RECTANGLE_ARB);
previous.Bind ();
Fit (viewport, previous);
Gl.glTexEnvi (Gl.GL_TEXTURE_ENV, Gl.GL_TEXTURE_ENV_MODE, Gl.GL_COMBINE);
Gl.glTexEnvf (Gl.GL_TEXTURE_ENV, Gl.GL_COMBINE_RGB, Gl.GL_INTERPOLATE);
Gl.glTexEnvfv (Gl.GL_TEXTURE_ENV,
Gl.GL_TEXTURE_ENV_COLOR,
color);
Gl.glMatrixMode (Gl.GL_MODELVIEW);
Gl.glBegin (Gl.GL_QUADS);
Gl.glMultiTexCoord2fARB (Gl.GL_TEXTURE0, 0, 0);
Gl.glMultiTexCoord2fARB (Gl.GL_TEXTURE1, 0, 0);
Gl.glVertex3f (0, viewport.Height, 0);
Gl.glMultiTexCoord2fARB (Gl.GL_TEXTURE0, next.Width, 0);
Gl.glMultiTexCoord2fARB (Gl.GL_TEXTURE1, previous.Width, 0);
Gl.glVertex3f (viewport.Width, viewport.Height, 0);
Gl.glMultiTexCoord2fARB (Gl.GL_TEXTURE0, next.Width, next.Height);
Gl.glMultiTexCoord2fARB (Gl.GL_TEXTURE1, previous.Width, previous.Height);
Gl.glVertex3f (viewport.Width, 0, 0);
Gl.glMultiTexCoord2fARB (Gl.GL_TEXTURE0, 0, next.Height);
Gl.glMultiTexCoord2fARB (Gl.GL_TEXTURE1, 0, previous.Height);
Gl.glVertex3f (0, 0, 0);
Gl.glEnd ();
Gl.glDisable (Gl.GL_TEXTURE_RECTANGLE_ARB);
Gl.glActiveTextureARB (Gl.GL_TEXTURE0);
}
public override void Draw(Gdk.Rectangle viewport, Texture previous, Texture next)
{
Gl.glViewport(0, 0, viewport.Width, viewport.Height);
Gl.glMatrixMode(Gl.GL_PROJECTION);
Gl.glLoadIdentity();
Glu.gluPerspective(40, viewport.Width / (float)viewport.Height, 0.1, 50.0);
Gl.glMatrixMode(Gl.GL_MODELVIEW);
Gl.glLoadIdentity();
Glu.gluLookAt(0.0, 0.0, 3.0,
0.0, 0.0, 0.0,
0.0, 1.0, 0.0);
Gl.glTranslatef(0, 0, -3);
Gl.glPushMatrix();
Gl.glTranslatef(0, 0, 0.5f);
Texture t = previous;
t.Bind();
RenderPlane(new Gdk.Rectangle(-2, -1, 2, 2), t);
Gl.glBegin(Gl.GL_QUADS);
Gl.glTexCoord2f(0, 0);
Gl.glVertex3f(-2, -1, 0);
Gl.glTexCoord2f(t.Width, 0);
Gl.glVertex3f(-2, 1, 0);
Gl.glTexCoord2f(t.Width, t.Height);
Gl.glVertex3f(0, 1, 0);
Gl.glTexCoord2f(0, t.Height);
Gl.glVertex3f(0, -1, 0);
Gl.glEnd();
next.Bind();
Gl.glBegin(Gl.GL_QUADS);
Gl.glTexCoord2f(0, 0);
Gl.glVertex3f(1, -1, 0);
Gl.glTexCoord2f(next.Width, 0);
Gl.glVertex3f(1, 1, 0);
Gl.glTexCoord2f(next.Width, next.Height);
Gl.glVertex3f(2.41421f, 1, -1.41421f);
Gl.glTexCoord2f(0, next.Height);
Gl.glVertex3f(2.41421f, -1, -1.41421f);
Gl.glEnd();
}
protected void RenderPlane(Gdk.Rectangle viewport, Texture previous)
{
previous.Bind();
Fit(viewport, previous);
Gl.glMatrixMode(Gl.GL_MODELVIEW);
Gl.glBegin(Gl.GL_QUADS);
Gl.glTexCoord2f(0, 0);
Gl.glVertex3f(0, viewport.Height, 0);
Gl.glTexCoord2f(previous.Width, 0);
Gl.glVertex3f(viewport.Width, viewport.Height, 0);
Gl.glTexCoord2f(previous.Width, previous.Height);
Gl.glVertex3f(viewport.Width, 0, 0);
Gl.glTexCoord2f(0, previous.Height);
Gl.glVertex3f(0, 0, 0);
Gl.glEnd();
}
public override void Draw(Gdk.Rectangle viewport, Texture previous, Texture next)
{
for (int i = 0; i < color.Length; i++)
{
color [i] = percent;
}
bool supported = GlExtensionLoader.LoadExtension("GL_ARB_multitexture");
if (!supported)
{
System.Console.WriteLine("GL_ARB_multitexture not supported");
return;
}
Gl.glViewport(0, 0, viewport.Width, viewport.Height);
Gl.glMatrixMode(Gl.GL_PROJECTION);
Gl.glLoadIdentity();
Glu.gluOrtho2D(0, viewport.Width, 0, viewport.Height);
Gl.glMatrixMode(Gl.GL_MODELVIEW);
Gl.glLoadIdentity();
Gl.glDisable(Gl.GL_TEXTURE_RECTANGLE_ARB);
Gl.glActiveTextureARB(Gl.GL_TEXTURE0);
Gl.glEnable(Gl.GL_TEXTURE_RECTANGLE_ARB);
//Gl.glTexEnvi(Gl.GL_TEXTURE_ENV, Gl.GL_TEXTURE_ENV_MODE, Gl.GL_REPLACE);
next.Bind();
Fit(viewport, next);
Gl.glActiveTextureARB(Gl.GL_TEXTURE1);
//Gl.glDisable (Gl.GL_TEXTURE_RECTANGLE_ARB);
Gl.glEnable(Gl.GL_TEXTURE_RECTANGLE_ARB);
previous.Bind();
Fit(viewport, previous);
Gl.glTexEnvi(Gl.GL_TEXTURE_ENV, Gl.GL_TEXTURE_ENV_MODE, Gl.GL_COMBINE);
Gl.glTexEnvf(Gl.GL_TEXTURE_ENV, Gl.GL_COMBINE_RGB, Gl.GL_INTERPOLATE);
Gl.glTexEnvfv(Gl.GL_TEXTURE_ENV,
Gl.GL_TEXTURE_ENV_COLOR,
color);
Gl.glMatrixMode(Gl.GL_MODELVIEW);
Gl.glBegin(Gl.GL_QUADS);
Gl.glMultiTexCoord2fARB(Gl.GL_TEXTURE0, 0, 0);
Gl.glMultiTexCoord2fARB(Gl.GL_TEXTURE1, 0, 0);
Gl.glVertex3f(0, viewport.Height, 0);
Gl.glMultiTexCoord2fARB(Gl.GL_TEXTURE0, next.Width, 0);
Gl.glMultiTexCoord2fARB(Gl.GL_TEXTURE1, previous.Width, 0);
Gl.glVertex3f(viewport.Width, viewport.Height, 0);
Gl.glMultiTexCoord2fARB(Gl.GL_TEXTURE0, next.Width, next.Height);
Gl.glMultiTexCoord2fARB(Gl.GL_TEXTURE1, previous.Width, previous.Height);
Gl.glVertex3f(viewport.Width, 0, 0);
Gl.glMultiTexCoord2fARB(Gl.GL_TEXTURE0, 0, next.Height);
Gl.glMultiTexCoord2fARB(Gl.GL_TEXTURE1, 0, previous.Height);
Gl.glVertex3f(0, 0, 0);
Gl.glEnd();
Gl.glDisable(Gl.GL_TEXTURE_RECTANGLE_ARB);
Gl.glActiveTextureARB(Gl.GL_TEXTURE0);
}
protected void RenderPlane (Gdk.Rectangle viewport, Texture previous)
{
previous.Bind ();
Fit (viewport, previous);
Gl.glMatrixMode (Gl.GL_MODELVIEW);
Gl.glBegin (Gl.GL_QUADS);
Gl.glTexCoord2f (0, 0);
Gl.glVertex3f (0, viewport.Height, 0);
Gl.glTexCoord2f (previous.Width, 0);
Gl.glVertex3f (viewport.Width, viewport.Height, 0);
Gl.glTexCoord2f (previous.Width, previous.Height);
Gl.glVertex3f (viewport.Width, 0, 0);
Gl.glTexCoord2f (0, previous.Height);
Gl.glVertex3f (0, 0, 0);
Gl.glEnd ();
}
public override void Draw (Gdk.Rectangle viewport, Texture previous, Texture next)
{
Gl.glViewport (0, 0, viewport.Width, viewport.Height);
Gl.glMatrixMode (Gl.GL_PROJECTION);
Gl.glLoadIdentity ();
Glu.gluPerspective (40, viewport.Width / (float) viewport.Height, 0.1, 50.0);
Gl.glMatrixMode (Gl.GL_MODELVIEW);
Gl.glLoadIdentity ();
Glu.gluLookAt (0.0, 0.0, 3.0,
0.0, 0.0, 0.0,
0.0, 1.0, 0.0);
Gl.glTranslatef (0, 0, -3);
Gl.glPushMatrix ();
Gl.glTranslatef (0, 0, 0.5f);
Texture t = previous;
t.Bind ();
RenderPlane (new Gdk.Rectangle (-2, -1, 2, 2), t);
Gl.glBegin (Gl.GL_QUADS);
Gl.glTexCoord2f (0, 0);
Gl.glVertex3f (-2, -1, 0);
Gl.glTexCoord2f (t.Width, 0);
Gl.glVertex3f (-2, 1, 0);
Gl.glTexCoord2f (t.Width, t.Height);
Gl.glVertex3f (0, 1, 0);
Gl.glTexCoord2f (0, t.Height);
Gl.glVertex3f (0, -1, 0);
Gl.glEnd ();
next.Bind ();
Gl.glBegin (Gl.GL_QUADS);
Gl.glTexCoord2f (0, 0);
Gl.glVertex3f (1, -1, 0);
Gl.glTexCoord2f (next.Width, 0);
Gl.glVertex3f (1, 1, 0);
Gl.glTexCoord2f (next.Width, next.Height);
Gl.glVertex3f (2.41421f, 1, -1.41421f);
Gl.glTexCoord2f (0, next.Height);
Gl.glVertex3f (2.41421f, -1, -1.41421f);
Gl.glEnd ();
}