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कंप्यूटर ग्राफिक्स/2013-14/प्रयोगशाला 3
{{कंप्यूटर ग्राफिक्स -- 2013-2014 -- info.uvt.ro/पेज हैडर}}


=== एंटीअलियासिंग (Antialising) ===

* '''रंग ब्लेंडिंग (Color Blending)''' -

<source lang="Java">
(contracted; show full)</source>

=== बहुभुज(Polygons) ===


==== वैधता(Validity) ====

==== बहुभुज का निर्माण ब्लॉक (Building blocks of polyons)
  ====

==== आयामी (Dimensionality) ====

==== प्रिमिटिवस (Primitives) ====

<source lang="java">
public class MainFrame
(contracted; show full)		[...]
	}

	[...]
}
</source>

=== बहुभुज स्टिपल (Polygon stipple)
  ===

<source lang="java">
public class MainFrame
{

	[...]
	byte mask[] = {
        	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	               0x03, (byte)0x80, 0x01, (byte)0xC0, 0x06, (byte)0xC0, 0x03, 0x60, 

	               0x04, 0x60, 0x06, 0x20, 0x04, 0x30, 0x0C, 0x20, 
	               0x04, 0x18, 0x18, 0x20, 0x04, 0x0C, 0x30, 0x20,
	               0x04, 0x06, 0x60, 0x20, 0x44, 0x03, (byte)0xC0, 0x22, 
	               0x44, 0x01, (byte)0x80, 0x22, 0x44, 0x01, (byte)0x80, 0x22, 
	               0x44, 0x01, (byte)0x80, 0x22, 0x44, 0x01, (byte)0x80, 0x22,
	               0x44, 0x01, (byte)0x80, 0x22, 0x44, 0x01, (byte)0x80, 0x22, 
	               0x66, 0x01, (byte)0x80, 0x66, 0x33, 0x01, (byte)0x80, (byte)0xCC, 

	               0x19, (byte)0x81, (byte)0x81, (byte)0x98, 0x0C, (byte)0xC1, (byte)0x83, 0x30,
	               0x07, (byte)0xe1, (byte)0x87, (byte)0xe0, 0x03, 0x3f, (byte)0xfc, (byte)0xc0, 
	               0x03, 0x31, (byte)0x8c, (byte)0xc0, 0x03, 0x33, (byte)0xcc, (byte)0xc0, 
	               0x06, 0x64, 0x26, 0x60, 0x0c, (byte)0xcc, 0x33, 0x30,
	               0x18, (byte)0xcc, 0x33, 0x18, 0x10, (byte)0xc4, 0x23, 0x08, 
	               0x10, 0x63, (byte)0xC6, 0x08, 0x10, 0x30, 0x0c, 0x08, 
	               0x10, 0x18, 0x18, 0x08, 0x10, 0x00, 0x00, 0x08};

	public void display(GLAutoDrawable canvas) {
		GL2 gl = canvas.getGL().getGL2();

		gl.glPolygonMode(GL.GL_FRONT_AND_BACK, GL2.GL_FILL);

		// Set the polygon mask.
		gl.glPolygonStipple (mask, 0);
		// Enable polygon stipple.
		gl.glEnable (GL2.GL_POLYGON_STIPPLE);

		// Define vertices in clockwise order (back-faced).
		gl.glBegin(GL2.GL_POLYGON);
			gl.glColor3f(1.f, 0.f, 0.f);
			gl.glVertex2f(0.2f, 0.2f);
			gl.glColor3f(0.f, 1.f, 0.f);
			gl.glVertex2f(0.2f, 0.4f);
			gl.glColor3f(0.f, 0.f, 1.f);
			gl.glVertex2f(0.4f, 0.4f);
			gl.glColor3f(1.f, 1.f, 1.f);
			gl.glVertex2f(0.4f, 0.2f);
		gl.glEnd();

		// Disable polygon stipple.
		gl.glDisable (GL2.GL_POLYGON_STIPPLE);

		[...]
	}

	[...]
}
</source>

=== बहुभुज नार्मल (Polygon normals)  ===
<source lang="java">
public class MainFrame
{
    [...]

    public void display(GLAutoDrawable canvas) {
        GL2 gl = canvas.getGL().getGL2();

        [...]

        // Do not render front-faced polygons.
        gl.glCullFace(GL.GL_FRONT);
        // Culling must be enabled in order to work.
        gl.glEnable(GL.GL_CULL_FACE);        

        gl.glPolygonMode(GL.GL_FRONT_AND_BACK, GL.GL_FILL);

        // Define vertices in clockwise order (back-faced).
        gl.glBegin(GL2.GL_POLYGON);
            // Define normal for vertex 1
            gl.glNormal3f(0.f, 0.f, 1.f);
            gl.glColor3f(1.f, 0.f, 0.f);
            gl.glVertex2f(0.2f, 0.2f);

            // Define normal for vertex 2
            gl.glNormal3f(0.f, 0.f, 1.f);
            gl.glColor3f(0.f, 1.f, 0.f);
            gl.glVertex2f(0.2f, 0.4f);

            // Define normal for vertex 3
            gl.glNormal3f(0.f, 0.f, 1.f);
            gl.glColor3f(0.f, 0.f, 1.f);
            gl.glVertex2f(0.4f, 0.4f);

            // Define normal for vertex 4
            gl.glNormal3f(0.f, 0.f, 1.f);
            gl.glColor3f(1.f, 1.f, 1.f);
            gl.glVertex2f(0.4f, 0.2f);
        gl.glEnd();

        [...]
    }

    [...]
}
</source>
==== बम्प   मैपिंग प्राइमर (Bump mapping primer)  ====

=== बिल्डिंग डिस्प्ले सूचियाँ (Building Display Lists)  ===
<source lang="java">
public class MainFrame
{
    [...]

    int aCircle;

(contracted; show full)
** [http://download.java.net/media/jogl/builds/nightly/javadoc_public/javax/media/opengl/GL.html#glGenLists(int) glGenLists(int)];
** [http://download.java.net/media/jogl/builds/nightly/javadoc_public/javax/media/opengl/GL.html#glNewList(int,%20int) glNewList(int, int)];
** [http://download.java.net/media/jogl/builds/nightly/javadoc_public/javax/media/opengl/GL.html#glEndList() glEndList()];



== अभ्यास (Exercises)
  ==

{{कंप्यूटर ग्राफिक्स -- 2013-2014 -- info.uvt.ro/पेज फ़ुटर}}

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