public void applyInternalTransform(DrawContext dc)
{
if (dc == null)
{
String message = Logging.getMessage("nullValue.DrawContextIsNull");
Logging.logger().severe(message);
throw new IllegalStateException(message);
}
Texture texture = this.getTexture(dc);
if (texture == null)
{
texture = this.requestTexture(dc);
}
if (texture == null)
{
return;
}
if (texture.getMustFlipVertically())
{
GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.
gl.glMatrixMode(GL2.GL_TEXTURE);
gl.glLoadIdentity();
gl.glScaled(1, -1, 1);
gl.glTranslated(0, -1, 0);
}
}
public void applyInternalTransform(DrawContext dc)
{
if (dc == null)
{
String message = Logging.getMessage("nullValue.DrawContextIsNull");
Logging.logger().severe(message);
throw new IllegalStateException(message);
}
// Use the tile's texture if available.
Texture t = this.getTextureFromCache(dc);
if (t == null)
{
t = this.initializeTexture(dc, this.imageSource);
}
if (t != null)
{
if (t.getMustFlipVertically())
{
GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.
gl.glMatrixMode(GL2.GL_TEXTURE);
gl.glLoadIdentity();
gl.glScaled(1, -1, 1);
gl.glTranslated(0, -1, 0);
}
}
}
protected void initializeFrame(DrawContext dc)
{
if (dc.getGLContext() == null)
{
String message = Logging.getMessage("BasicSceneController.GLContextNullStartRedisplay");
Logging.logger().severe(message);
throw new IllegalStateException(message);
}
GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.
gl.glPushAttrib(GL2.GL_VIEWPORT_BIT | GL2.GL_ENABLE_BIT | GL2.GL_TRANSFORM_BIT);
gl.glMatrixMode(GL2.GL_MODELVIEW);
gl.glPushMatrix();
gl.glLoadIdentity();
gl.glMatrixMode(GL2.GL_PROJECTION);
gl.glPushMatrix();
gl.glLoadIdentity();
gl.glEnable(GL.GL_DEPTH_TEST);
}
protected void applyStandardLightDirection(GL2 gl, int light, Vec4 direction)
{
// Setup the light as a directional light coming from the viewpoint. This requires two state changes
// (a) Set the light position as direction x, y, z, and set the w-component to 0, which tells OpenGL this is
// a directional light.
// (b) Invoke the light position call with the identity matrix on the modelview stack. Since the position
// is transformed by the
Vec4 vec = direction.normalize3();
float[] parameters = new float[4];
parameters[0] = (float)vec.x;
parameters[1] = (float)vec.y;
parameters[2] = (float)vec.z;
parameters[3] = 0.0f;
gl.glMatrixMode(GL2.GL_MODELVIEW);
gl.glPushMatrix();
gl.glLoadIdentity();
gl.glLightfv(light, GL2.GL_POSITION, parameters, 0);
gl.glPopMatrix();
}
