问题描述
我需要在窗口的两侧显示opengl纹理，在MFC中创建一个双视图。怎么做。
我尝试了什么：
我尝试下面的代码，但只有一个出现
void OverlayDisplayDlg :: DrawTwinView（）
{
glClear （GL_COLOR_BUFFER_BIT）; //清除颜色缓冲区
glMatrixMode（GL_MODELVIEW）; //操作模型 - 视图矩阵
glLoadIdentity（）; //重置模型视图矩阵
glEnable（GL_TEXTURE_2D）;
glGenTextures（5，& m_glTexture [4]）;
glBindTexture （GL_TEXTURE_2D，m_glTexture [4]）;
glPushMatrix（）;
m_glTexture [0] = ApplyTexture（）;
glEnable（GL_TEXTURE_2D） ;
glBindTexture（GL_TEXTURE_2D，m_glTexture [0]）;
glBegin（GL_QUADS）;
glTexCoord2d（0.0,0.0）;
glVertex2f（-1.0f，-1.0f）;
glTexCoord2d（1.0,0.0）;
glVertex2f（0.0f，-1.0f）;
glTexCoord2d（1.0,1.0）;
glVertex2f（0.0f，1.0f）;
glTexCoord2d（0.0,1.0）;
glVertex2f（-1.0f，1.0f）;
glEnd（）;
glDisable（GL_TEXTURE_2D）;
glPopMatrix（）;
glPushMatrix（）;
GLuint glTexture;
glTexture = ApplyTexture（）;
glEnable（GL_TEXTURE_2D）;
glBindTexture（GL_TEXTURE_2D，glTexture）;
glBegin（GL_QUADS）;
glTexCoord2d（0.0,0.0）;
glVertex2f（0.2f，-1.0f）;
glTexCoord2d（1.0,0.0）;
glVertex2f（1.0f，-1.0f）;
glTexCoord2d（1.0,1.0）;
glVertex2f（1.0f，1.0f）;
glTexCoord2d（0.0,1.0）;
glVertex2f（0.2f，1.0f）;
glEnd（）;
glDisable（GL_TEXTURE_2D）;
glPopMatrix（）;
SwapBuffers（m_hDeviceContextDC）;
}
GLuint OverlayDisplayDlg :: ApplyTexture（）
{
GLuint glTexture;
ReadData（_T（D：\\ Bin Files \\InputData_1280_690.bin），WIDTH，HEIGHT，PIXEL，m_pbyImageData）;
glClear（GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT）;
glEnable（GL_TEXTURE_2D）;
glEnable（GL_COLOR_MATERIAL）;
glGenTextures（1，& glTexture）;
glBindTexture（GL_TEXTURE_2D，glTexture）;
glTexEnvf（GL_TEXTURE_ENV，GL_TEXTURE_ENV_MODE，GL_MODULATE）; //选择调制以将纹理与颜色混合以进行着色
glTexParameteri（GL_TEXTURE_2D，GL_TEXTURE_MIN_FILTER，GL_NEAREST）; //当纹理区域很小时，双线性过滤最近的mipmap
glTexParameteri（GL_TEXTURE_2D，GL_TEXTURE_MAG_FILTER，GL_NEAREST）; //当纹理区域很大时，双线性过滤原始的
glTexParameteri（GL_TEXTURE_2D，GL_TEXTURE_WRAP_S，GL_REPEAT）; //纹理在边缘包裹（重复）
glTexParameteri（GL_TEXTURE_2D，GL_TEXTURE_WRAP_T，GL_REPEAT）;
glColor4f（1.0f，1.0f，1.0f，1.0f ）;
glTexImage2D（GL_TEXTURE_2D，0，GL_RGBA，WIDTH，HEIGHT，0，GL_LUMINANCE，GL_UNSIGNED_BYTE，m_pbyImageData）; //将纹理应用图像显示到屏幕
glDisable（GL_TEXTURE_2D）;
glDisable（GL_COLOR_MATERIAL）;
返回glTexture;
}
请帮帮我
I need to display opengl texture on 2 sides of window creating a twin view in MFC. How to do this.
What I have tried:
I tried the below code but only one is appearing
void OverlayDisplayDlg :: DrawTwinView()
{
glClear( GL_COLOR_BUFFER_BIT ); // Clear the color buffer
glMatrixMode( GL_MODELVIEW ); // To operate on Model-View matrix
glLoadIdentity(); // Reset the model-view matrix
glEnable( GL_TEXTURE_2D );
glGenTextures( 5, &m_glTexture[4] );
glBindTexture( GL_TEXTURE_2D, m_glTexture[4] );
glPushMatrix();
m_glTexture[0] = ApplyTexture();
glEnable( GL_TEXTURE_2D );
glBindTexture( GL_TEXTURE_2D, m_glTexture[0] );
glBegin( GL_QUADS );
glTexCoord2d(0.0,0.0);
glVertex2f( -1.0f, -1.0f );
glTexCoord2d( 1.0,0.0 );
glVertex2f( 0.0f, -1.0f );
glTexCoord2d( 1.0,1.0 );
glVertex2f( 0.0f, 1.0f );
glTexCoord2d( 0.0,1.0 );
glVertex2f( -1.0f, 1.0f );
glEnd();
glDisable( GL_TEXTURE_2D );
glPopMatrix();
glPushMatrix();
GLuint glTexture;
glTexture = ApplyTexture();
glEnable( GL_TEXTURE_2D );
glBindTexture( GL_TEXTURE_2D, glTexture );
glBegin( GL_QUADS );
glTexCoord2d(0.0,0.0);
glVertex2f( 0.2f, -1.0f );
glTexCoord2d( 1.0,0.0 );
glVertex2f( 1.0f, -1.0f );
glTexCoord2d( 1.0,1.0 );
glVertex2f( 1.0f, 1.0f );
glTexCoord2d( 0.0,1.0 );
glVertex2f( 0.2f, 1.0f );
glEnd();
glDisable( GL_TEXTURE_2D );
glPopMatrix();
SwapBuffers( m_hDeviceContextDC );
}
GLuint OverlayDisplayDlg :: ApplyTexture()
{
GLuint glTexture;
ReadData( _T( "D:\\Bin Files\\InputData_1280_690.bin" ), WIDTH, HEIGHT, PIXEL, m_pbyImageData);
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glEnable( GL_TEXTURE_2D );
glEnable(GL_COLOR_MATERIAL);
glGenTextures( 1, &glTexture );
glBindTexture( GL_TEXTURE_2D, glTexture );
glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ); // Select modulate to mix texture with color for shading
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); // When texture area is small, bilinear filter the closest mipmap
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); // When texture area is large, bilinear filter the original
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT ); // The texture wraps over at the edges (repeat)
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
glColor4f( 1.0f, 1.0f, 1.0f, 1.0f);
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, WIDTH, HEIGHT, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, m_pbyImageData ); // To dislay texture applied image to screen
glDisable( GL_TEXTURE_2D );
glDisable( GL_COLOR_MATERIAL );
return glTexture;
}
Please help me
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