-----------------------------------

Catalyst

Sat Jun 14, 2003 11:26 am


Cube Class

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a simple class to allow you to easily make and render cubes in opengl

class PCube 
{
    public:
    
    float x,y,z;
    float radius;
    
    void Init (float X,float Y,float Z,float RAD)
    {
    x=X;
    y=Y;
    z=Z;
    radius=RAD;
    }
    
    void Render()
    {
    
    glBegin (GL_QUADS);
     
	glTexCoord2f(0,1); glVertex3f(x-radius, y-radius, z-radius);
	glTexCoord2f(0,0); glVertex3f(x-radius, y + radius, z-radius);
	glTexCoord2f(1,0); glVertex3f(x + radius, y + radius, z-radius); 
	glTexCoord2f(1,1); glVertex3f(x + radius, y-radius, z-radius);

	glTexCoord2f(0,1); glVertex3f(x-radius, y-radius, z + radius);
	glTexCoord2f(0,0); glVertex3f(x-radius, y + radius, z + radius);
	glTexCoord2f(1,0); glVertex3f(x + radius, y + radius, z + radius); 
	glTexCoord2f(1,1); glVertex3f(x + radius, y-radius, z + radius);

	glTexCoord2f(0,1); glVertex3f(x-radius, y-radius, z-radius);
	glTexCoord2f(0,0); glVertex3f(x-radius, y-radius, z + radius);
	glTexCoord2f(1,0); glVertex3f(x + radius, y-radius, z + radius); 
	glTexCoord2f(1,1); glVertex3f(x + radius, y-radius, z-radius);
		
	glTexCoord2f(0,1); glVertex3f(x-radius, y + radius, z-radius);
	glTexCoord2f(0,0); glVertex3f(x-radius, y + radius, z + radius);
	glTexCoord2f(1,0); glVertex3f(x + radius, y + radius, z + radius); 
	glTexCoord2f(1,1); glVertex3f(x + radius, y + radius, z-radius);

	glTexCoord2f(0,1); glVertex3f(x-radius, y-radius, z-radius);
	glTexCoord2f(0,0); glVertex3f(x-radius, y-radius, z + radius);
	glTexCoord2f(1,0); glVertex3f(x-radius, y + radius, z + radius); 
	glTexCoord2f(1,1); glVertex3f(x-radius, y + radius, z-radius);

	glTexCoord2f(0,1); glVertex3f(x + radius, y-radius, z-radius);
	glTexCoord2f(0,0); glVertex3f(x + radius, y-radius, z + radius);
	glTexCoord2f(1,0); glVertex3f(x + radius, y + radius, z + radius); 
	glTexCoord2f(1,1); glVertex3f(x + radius, y + radius, z-radius);                                                        
                                                                                                           
    glEnd();
    
    }

};


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Homer_simpson

Sat Jun 14, 2003 12:20 pm



-----------------------------------

also add this to your class... it makes pyramids =)

void CreatePyramid(float x, float y, float z, int width, int height)
{
	glBegin(GL_TRIANGLES);		
		
		glColor3ub(255, 0, 0);   glVertex3f(x, y + height, z);					// Top point
		glColor3ub(0, 255, 255); glVertex3f(x - width, y - height, z - width);	// Bottom left point
		glColor3ub(255, 0, 255); glVertex3f(x + width, y - height, z - width);  // Bottom right point

		glColor3ub(255, 0, 0);   glVertex3f(x, y + height, z);					// Top point
		glColor3ub(0, 255, 255); glVertex3f(x + width, y - height, z + width);  // Bottom right point
		glColor3ub(255, 0, 255); glVertex3f(x - width, y - height, z + width);	// Bottom left point

		glColor3ub(255, 0, 0);   glVertex3f(x, y + height, z);					// Top point
		glColor3ub(255, 0, 255); glVertex3f(x - width, y - height, z + width);	// Front bottom point
		glColor3ub(0, 255, 255); glVertex3f(x - width, y - height, z - width);	// Bottom back point

		glColor3ub(255, 0, 0);   glVertex3f(x, y + height, z);					// Top point
		glColor3ub(255, 0, 255); glVertex3f(x + width, y - height, z - width);	// Bottom back point
		glColor3ub(0, 255, 255); glVertex3f(x + width, y - height, z + width);	// Front bottom point
			
	glEnd();


-----------------------------------

Homer_simpson

Sat Jun 14, 2003 1:28 pm



-----------------------------------

and also
void DrawSphere(float x, float y, float z, float radius)
{
	GLUquadricObj *pSphere = gluNewQuadric();			
	glPushMatrix();									
	glTranslatef(x, y, z);							
	gluSphere(pSphere, radius, 15, 15);			
	glPopMatrix();										
	gluDeleteQuadric(pSphere);							
}