ok… I am trying to learn opengl and I am trying to make classes for each primitive so that its easier to reuse the code…
this is the primitives.h right now :
// Primitives Header - Sphere/Ellipsoid , Cube/Cuboid, Cylinder, Cone
#pragma once
#include “materials.h”
// - > Cube Class ← Begin //
class i3dCube
{float cvar_CubeVertices[24][3];
float cvar_CubeWidth;
float cvar_CubeHeight;
float cvar_CubeLength;float cvar_CubeX;
float cvar_CubeY;
float cvar_CubeZ;float cvar_CubeRotX;
float cvar_CubeRotY;
float cvar_CubeRotZ;float cvar_CubeScale;
bool cvar_CubeTexed;
float cvar_CubeColor_AMBI[4];
float cvar_CubeColor_DIFF[4];
float cvar_CubeColor_SPEC[4];
float cvar_CubeColor_EMIT[4];
float cvar_CubeColor_SHINE;public :
void SetCube (float posX, float posY, float posZ,
float rotX, float rotY, float rotZ,
float Width, float Height, float Length,
float Scale, bool Textured, i3dMaterial Material);void SetDimensions (float CWidth, float CHeight, float CLength);
void SetPosition (float posX, float posY, float posZ);
void Move(float changeX, float changeY, float changeZ);
void SetRotation (float rotX, float rotY, float rotZ);
void Rotate(float changeX, float changeY, float changeZ);
void SetScale (float Scale);
void Scale(float changeScale);
void SetMaterial (i3dMaterial Material);
void ToggleTexture (bool Textured);
void Render ();};
// Function - Set all properties of the Cube (Useful for initialization)
void i3dCube::SetCube (float posX, float posY, float posZ,
float rotX, float rotY, float rotZ,
float CWidth, float CHeight, float CLength,
float Scale, bool Textured, i3dMaterial Material)
{cvar_CubeX = posX;
cvar_CubeY = posY;
cvar_CubeZ = posZ;cvar_CubeRotX = rotX;
cvar_CubeRotY = rotY;
cvar_CubeRotZ = rotZ;cvar_CubeWidth = CWidth;
cvar_CubeHeight = CHeight;
cvar_CubeLength = CLength;cvar_CubeScale = Scale;
cvar_CubeTexed = Textured;
memcpy(cvar_CubeColor_AMBI,Material.MatColor_AMBI,4);
memcpy(cvar_CubeColor_DIFF,Material.MatColor_DIFF,4);
memcpy(cvar_CubeColor_SPEC,Material.MatColor_SPEC,4);
memcpy(cvar_CubeColor_EMIT,Material.MatColor_EMIT,4);
cvar_CubeColor_SHINE = Material.MatColor_SHINE;} // Done
// Function - Set Width, Height and Length Only of Cube
void i3dCube::SetDimensions (float CWidth, float CHeight, float CLength)
{cvar_CubeWidth = CWidth;
cvar_CubeHeight = CHeight;
cvar_CubeLength = CLength;} // Done
// Function - Set X,Y and Z Position Only of Cube
void i3dCube::SetPosition (float posX, float posY, float posZ)
{cvar_CubeX = posX;
cvar_CubeY = posY;
cvar_CubeZ = posZ;} // Done
// Function - Move Cube relatively to its current position
void i3dCube::Move (float changeX, float changeY, float changeZ){
cvar_CubeX = cvar_CubeX + changeX;
cvar_CubeY = cvar_CubeY + changeY;
cvar_CubeZ = cvar_CubeZ + changeZ;
}// Function - Set X,Y and Z Rotation Only of Cube
void i3dCube::SetRotation (float rotX, float rotY, float rotZ)
{cvar_CubeRotX = rotX;
cvar_CubeRotY = rotY;
cvar_CubeRotZ = rotZ;} // Done
// Function - Rotate Cube relatively to its current rotation
void i3dCube::Rotate (float changeX, float changeY, float changeZ){
cvar_CubeRotX = cvar_CubeRotX + changeX;
cvar_CubeRotY = cvar_CubeRotY + changeY;
cvar_CubeRotZ = cvar_CubeRotZ + changeZ;
}// Function - Set Scale Only of Cube
void i3dCube::SetScale (float Scale)
{cvar_CubeScale = Scale;
} // Done
// Function - Scale Cube relatively to its current scale
void i3dCube::Scale(float changeScale){cvar_CubeScale = cvar_CubeScale + changeScale;
}
// Function - Set various properties of the Cube’s material
void i3dCube::SetMaterial (i3dMaterial Material)
{
memcpy(cvar_CubeColor_AMBI,Material.MatColor_AMBI,4);
memcpy(cvar_CubeColor_DIFF,Material.MatColor_DIFF,4);
memcpy(cvar_CubeColor_SPEC,Material.MatColor_SPEC,4);
memcpy(cvar_CubeColor_EMIT,Material.MatColor_EMIT,4);
cvar_CubeColor_SHINE = Material.MatColor_SHINE;} // Done
// Function - Change setting that determines whether a given texture should be used
void i3dCube::ToggleTexture (bool Textured)
{cvar_CubeTexed = Textured;
} // Done
// Function - Render the Cube!
void i3dCube::Render()
{glTranslatef(cvar_CubeX, cvar_CubeY, cvar_CubeZ);
glRotatef(cvar_CubeRotX,1.0,0.0,0.0);
glRotatef(cvar_CubeRotY,0.0,1.0,0.0);
glRotatef(cvar_CubeRotZ,0.0,0.0,1.0);
glScalef(cvar_CubeWidth * cvar_CubeScale, cvar_CubeHeight * cvar_CubeScale, cvar_CubeLength * cvar_CubeScale);glMaterialfv(GL_FRONT, GL_AMBIENT, cvar_CubeColor_AMBI);
glMaterialfv(GL_FRONT, GL_DIFFUSE, cvar_CubeColor_DIFF);
glMaterialfv(GL_FRONT, GL_SPECULAR, cvar_CubeColor_SPEC);
glMaterialfv(GL_FRONT, GL_EMISSION, cvar_CubeColor_EMIT);
glMaterialf(GL_FRONT, GL_SHININESS, cvar_CubeColor_SHINE);glPushMatrix();
glBegin(GL_QUADS);
// xy face front glNormal3f(0.0, 0.0, 1.0); glVertex3f(-0.5, 0.5, 0.5); glVertex3f(-0.5, -0.5, 0.5); glVertex3f(0.5, -0.5, 0.5); glVertex3f(0.5, 0.5, 0.5); // xy face back glNormal3f(0.0, 0.0, -1.0); glVertex3f(-0.5, 0.5, -0.5); glVertex3f(-0.5, -0.5, -0.5); glVertex3f(0.5, -0.5, -0.5); glVertex3f(0.5, 0.5, -0.5); // yz face right glNormal3f(-1.0, 0.0, 0.0); glVertex3f(-0.5, 0.5, 0.5); glVertex3f(-0.5, 0.5, -0.5); glVertex3f(-0.5, -0.5, -0.5); glVertex3f(-0.5, -0.5, 0.5); // yz face left glNormal3f(1.0, 0.0, 0.0); glVertex3f(0.5, 0.5, 0.5); glVertex3f(0.5, 0.5, -0.5); glVertex3f(0.5, -0.5, -0.5); glVertex3f(0.5, -0.5, 0.5); // xz face top glNormal3f(0.0, 1.0, 0.0); glVertex3f(-0.5, 0.5, 0.5); glVertex3f(0.5, 0.5, 0.5); glVertex3f(0.5, 0.5, -0.5); glVertex3f(-0.5, 0.5, -0.5); // xz face bottom glNormal3f(0.0, -1.0, 0.0); glVertex3f(-0.5, -0.5, 0.5); glVertex3f(0.5, -0.5, 0.0); glVertex3f(0.5, -0.5, -0.5); glVertex3f(-0.5, -0.5, -0.5);
glEnd();
glPopMatrix();
}// Done
// - > Cube Class ← End //
//============================================================================================================================//
// - > Sphere Class ← Begin //
class i3dSphere
{
float cvar_SphereWidth;
float cvar_SphereHeight;
float cvar_SphereLength;float cvar_SphereX;
float cvar_SphereY;
float cvar_SphereZ;float cvar_SphereRotX;
float cvar_SphereRotY;
float cvar_SphereRotZ;float cvar_SphereScale;
bool cvar_SphereTexed;
float cvar_SphereColor_AMBI[4];
float cvar_SphereColor_DIFF[4];
float cvar_SphereColor_SPEC[4];
float cvar_SphereColor_EMIT[4];
float cvar_SphereColor_SHINE;public :
void SetSphere (float posX, float posY, float posZ,
float rotX, float rotY, float rotZ,
float Width, float Height, float Length,
float Scale, bool Textured, i3dMaterial Material);void SetDimensions (float CWidth, float CHeight, float CLength);
void SetPosition (float posX, float posY, float posZ);
void Move(float changeX, float changeY, float changeZ);
void SetRotation (float rotX, float rotY, float rotZ);
void Rotate(float changeX, float changeY, float changeZ);
void SetScale (float Scale);
void Scale(float changeScale);
void SetMaterial (i3dMaterial Material);
void ToggleTexture (bool Textured);
void Render ();};
// Function - Set all properties of the Sphere (Useful for initialization)
void i3dSphere::SetSphere (float posX, float posY, float posZ,
float rotX, float rotY, float rotZ,
float CWidth, float CHeight, float CLength,
float Scale, bool Textured, i3dMaterial Material)
{cvar_SphereX = posX;
cvar_SphereY = posY;
cvar_SphereZ = posZ;cvar_SphereRotX = rotX;
cvar_SphereRotY = rotY;
cvar_SphereRotZ = rotZ;cvar_SphereWidth = CWidth;
cvar_SphereHeight = CHeight;
cvar_SphereLength = CLength;cvar_SphereScale = Scale;
cvar_SphereTexed = Textured;
memcpy(cvar_SphereColor_AMBI,Material.MatColor_AMBI,4);
memcpy(cvar_SphereColor_DIFF,Material.MatColor_DIFF,4);
memcpy(cvar_SphereColor_SPEC,Material.MatColor_SPEC,4);
memcpy(cvar_SphereColor_EMIT,Material.MatColor_EMIT,4);
cvar_SphereColor_SHINE = Material.MatColor_SHINE;} // Done
// Function - Set Width, Height and Length Only of Sphere
void i3dSphere::SetDimensions (float CWidth, float CHeight, float CLength)
{cvar_SphereWidth = CWidth;
cvar_SphereHeight = CHeight;
cvar_SphereLength = CLength;} // Done
// Function - Set X,Y and Z Position Only of Sphere
void i3dSphere::SetPosition (float posX, float posY, float posZ)
{cvar_SphereX = posX;
cvar_SphereY = posY;
cvar_SphereZ = posZ;} // Done
// Function - Move Sphere relatively to its current position
void i3dSphere::Move (float changeX, float changeY, float changeZ){
cvar_SphereX = cvar_SphereX + changeX;
cvar_SphereY = cvar_SphereY + changeY;
cvar_SphereZ = cvar_SphereZ + changeZ;
}// Function - Set X,Y and Z Rotation Only of Sphere
void i3dSphere::SetRotation (float rotX, float rotY, float rotZ)
{cvar_SphereRotX = rotX;
cvar_SphereRotY = rotY;
cvar_SphereRotZ = rotZ;} // Done
// Function - Rotate Sphere relatively to its current rotation
void i3dSphere::Rotate (float changeX, float changeY, float changeZ){
cvar_SphereRotX = cvar_SphereRotX + changeX;
cvar_SphereRotY = cvar_SphereRotY + changeY;
cvar_SphereRotZ = cvar_SphereRotZ + changeZ;
}// Function - Set Scale Only of Sphere
void i3dSphere::SetScale (float Scale)
{cvar_SphereScale = Scale;
} // Done
// Function - Scale Sphere relatively to its current scale
void i3dSphere::Scale(float changeScale){cvar_SphereScale = cvar_SphereScale + changeScale;
}
// Function - Set various properties of the Sphere’s material
void i3dSphere::SetMaterial (i3dMaterial Material)
{
memcpy(cvar_SphereColor_AMBI,Material.MatColor_AMBI,4);
memcpy(cvar_SphereColor_DIFF,Material.MatColor_DIFF,4);
memcpy(cvar_SphereColor_SPEC,Material.MatColor_SPEC,4);
memcpy(cvar_SphereColor_EMIT,Material.MatColor_EMIT,4);
cvar_SphereColor_SHINE = Material.MatColor_SHINE;} // Done
// Function - Change setting that determines whether a given texture should be used
void i3dSphere::ToggleTexture (bool Textured)
{cvar_SphereTexed = Textured;
} // Done
// Function - Render the Sphere!
void i3dSphere::Render()
{
GLUquadricObj *g_texturedObject = NULL;glPushMatrix();
glTranslatef(cvar_SphereX, cvar_SphereY, cvar_SphereZ);
glRotatef(cvar_SphereRotX,1.0,0.0,0.0);
glRotatef(cvar_SphereRotY,0.0,1.0,0.0);
glRotatef(cvar_SphereRotZ,0.0,0.0,1.0);
glScalef(cvar_SphereWidth * cvar_SphereScale, cvar_SphereHeight * cvar_SphereScale, cvar_SphereLength * cvar_SphereScale);glMaterialfv(GL_FRONT, GL_AMBIENT, cvar_SphereColor_AMBI);
glMaterialfv(GL_FRONT, GL_DIFFUSE, cvar_SphereColor_DIFF);
glMaterialfv(GL_FRONT, GL_SPECULAR, cvar_SphereColor_SPEC);
glMaterialfv(GL_FRONT, GL_EMISSION, cvar_SphereColor_EMIT);
glMaterialf(GL_FRONT, GL_SHININESS, cvar_SphereColor_SHINE);g_texturedObject = gluNewQuadric();
gluQuadricTexture(g_texturedObject, GL_TRUE);
gluSphere(g_texturedObject,1,20,20);glPopMatrix();
}// Done
// - > Sphere Class ← End //
Here is the main rendering code
// Render Stuff : Called every frame
void i3dRender(){glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear Screen And Depth Buffer
glLoadIdentity(); // Reset The Current Modelview Matrix
glPushMatrix();//----------------- ALL RENDER STUFF ---------------//
gluLookAt(0.0f,0.0f,50.0f,0.0f,0.0f,-500.0f,0.0f,1.0f,0.0f);
TestCube.Move(0.01,0.01,0.01);
//TestSphere.Move(0.01,0.01,0.01);
TestCube.Rotate(1,1,1);TestCube.Render();
TestSphere.Render();//----------------- ALL RENDER STUFF --------------//
glPopMatrix();
}
Note: code does not show initialization and windows window stuff
The problem is when I run the app, the sphere rotates and moves with the cube. I have checked the variables and they are not nameds the same… so why ?
Also if I move TestSphere.Render above TestCube.Render, I get what I need… the sphere stays intact and the cube goes through transformations…
Please help… Thanks,
Aditya
[This message has been edited by adityagaddam (edited 07-28-2003).]
