qtforum.de

Code: Alles auswählen

initializeGL()
{
	// setup viewport, projection etc.:
	glViewport(0, 0, (GLint)width(), (GLint)height());
	glEnable(GL_TEXTURE_2D);
	glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);


	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glRotatef(180.0f, 180.0f,0.0f,0.0f); // Rotate

}

Code: Alles auswählen

	glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );

	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);



	glTexImage2D(
		GL_TEXTURE_2D,
		0,
		GL_LUMINANCE,
		m_image.width(),
		m_image.height(),
		0, GL_LUMINANCE,
		GL_UNSIGNED_BYTE,
		m_image.bits());	

	

	glEnable(GL_TEXTURE_2D);
	glBegin(GL_QUADS);      // Start Drawing A Textured Quad
	glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 0.0f); // Bottom Left
	glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 0.0f); // Bottom Right
	glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 0.0f);  // Top Right
	glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 0.0f);  // Top Left
	glEnd();           // Done Drawing The Quad	
	glDisable(GL_TEXTURE_2D);