glDrawPixels

This is a discussion on glDrawPixels within the Game Programming forums, part of the General Programming Boards category; are these functions glCopy Pixels, glDrawPixels... do they work in Perspective view. I have only seen them work in Ortho ...

  1. #1
    Registered User linuxdude's Avatar
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    glDrawPixels

    are these functions glCopy Pixels, glDrawPixels... do they work in Perspective view. I have only seen them work in Ortho and that is all I can get them to work in also.

  2. #2
    Crazy Fool Perspective's Avatar
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    works for me without orhto view

    Code:
    void drawImage() {
    	
    	// draw 'display' image
    	glClear(GL_COLOR_BUFFER_BIT);
    	glRasterPos2d(-1, -1);
    	glDrawPixels(width, height, GL_RGB, GL_UNSIGNED_BYTE, (unsigned char*)display);
    	glFlush();
    
    }
    
    ....
    void initGL(GLint width, GLint height) {
      
    	glMatrixMode(GL_PROJECTION);
    	glLoadIdentity();
    	glViewport(0, 0, (GLsizei)width, (GLsizei)height);
    }

  3. #3
    Registered User linuxdude's Avatar
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    nothing in your code above is perspective?? I meant with gluPerspective or glFrustum. With the depth buffer enabled and everything.
    [EDIT]Got it to work; I forgot to translatef down on the z buffer
    Last edited by linuxdude; 07-15-2004 at 05:40 PM.

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