glColor3f not working on gluSphere - c++

Question

I am currently rendering a solar system of planets in my 3d space but every single planet is black even when light hits the sphere. The spheres are rendered last in my render function. Had the colors working when the spheres were being rendered on their own but now i've added my sky box and other quads all the spheres refuse to be colored.
#include "Scene.h"
float rotation;
float rotation2;
int direction;
int speed;
Scene::Scene(Input *in)
{
// Initialise variables
rotation = 20;
rotation2 = 0;
direction = 1;
speed = 5;
myTexture = 0;
skyBox = 0;
// Store pointer for input class
input = in;
// OpenGL settings
glShadeModel(GL_SMOOTH); // Enable Smooth Shading
glClearColor(0.39f, 0.58f, 93.0f, 1.0f); // Cornflour Blue Background
glClearDepth(1.0f); // Depth Buffer Setup
glClearStencil(0); // Clear stencil buffer
glEnable(GL_DEPTH_TEST); // Enables Depth Testing
glEnable(GL_LIGHTING); // Enables Lighting
glDepthFunc(GL_LEQUAL); // The Type Of Depth Testing To Do
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); // Really Nice Perspective Calculations
// Other OpenGL / render setting should be applied here.
myTexture = SOIL_load_OGL_texture
(
"gfx/neongrid.png",
SOIL_LOAD_AUTO,
SOIL_CREATE_NEW_ID,
SOIL_FLAG_MIPMAPS | SOIL_FLAG_NTSC_SAFE_RGB | SOIL_FLAG_COMPRESS_TO_DXT
);
skyBox = SOIL_load_OGL_texture
(
"gfx/starField.png",
SOIL_LOAD_AUTO,
SOIL_CREATE_NEW_ID,
SOIL_FLAG_MIPMAPS | SOIL_FLAG_NTSC_SAFE_RGB | SOIL_FLAG_COMPRESS_TO_DXT
);
glEnable(GL_TEXTURE_2D);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
GL_NEAREST);
camera = new Camera();
}
void Scene::update(float dt)
{
// Update camera position
camera->update(input, dt);
// Handle user input
if (input->isKeyDown(43))
{
direction = 1;
input->SetKeyUp(43);
}
else if (input->isKeyDown(45))
{
direction = -1;
input->SetKeyUp(45);
}
// Update scene related variables
rotation += speed * dt;
rotation2 += (speed *2) * dt;
if (input->isKeyDown('p') && WF == false)
{
WF = true;
input->SetKeyUp('p');
glPolygonMode(GL_FRONT, GL_LINE);
}
if (input->isKeyDown('p') && WF == true)
{
WF = false;
input->SetKeyUp('p');
glPolygonMode(GL_FRONT, GL_FILL);
}
// Calculate FPS for output
calculateFPS();
}
void Scene::render() {
// Clear Color and Depth Buffers
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Reset transformations
glLoadIdentity();
// Set the camera
gluLookAt(camera->getPosition().x, camera->getPosition().y, camera->getPosition().z,
camera->getLookAt().x, camera->getLookAt().y, camera->getLookAt().z,
camera->getUp().x, camera->getUp().y, camera->getUp().z);
glutWarpPointer(400, 300);
glutSetCursor(GLUT_CURSOR_FULL_CROSSHAIR);
// Lighting
GLfloat Light_Ambient[] = { 0.2f, 0.2f, 0.2f, 1.0f };
GLfloat Light_Diffuse[] = { 9.0f, 9.0f, 9.0f, 1.0f };
GLfloat Light_Position[] = { 2.0f, 2.0f, 2.0f, 1.0f };
glLightfv(GL_LIGHT0, GL_AMBIENT, Light_Ambient);
glLightfv(GL_LIGHT0, GL_DIFFUSE, Light_Diffuse);
glLightfv(GL_LIGHT0, GL_POSITION, Light_Position);
glEnable(GL_LIGHT0);
glDisable(GL_DEPTH_TEST);
#pragma region skybox
glPushMatrix();
glTranslatef(camera->getPosition().x, camera->getPosition().y, camera->getPosition().z);
glBindTexture(GL_TEXTURE_2D, skyBox);
glBegin(GL_QUADS);
//Back
glNormal3f(0.0f, 0.0f, 1.0f);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(-1.0f, -1.0f, 1.0f);
glNormal3f(0.0f, 0.0f, 1.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(1.0f, -1.0f, 1.0f);
glNormal3f(0.0f, 0.0f, 1.0f);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(1.0f, 1.0f, 1.0f);
glNormal3f(0.0f, 0.0f, 1.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(-1.0f, 1.0f, 1.0f);
//Right
glNormal3f(1.0f, 0.0f, 0.0f);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(1.0f, -1.0f, -1.0f);
glNormal3f(1.0f, 0.0f, 0.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(1.0f, 1.0f, -1.0f);
glNormal3f(1.0f, 0.0f, 0.0f);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(1.0f, 1.0f, 1.0f);
glNormal3f(1.0f, 0.0f, 0.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(1.0f, -1.0f, 1.0f);
//front
glNormal3f(0.0f, 0.0f, -1.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(1.0f, -1.0f, -1.0f);
glNormal3f(0.0f, 0.0f, -1.0f);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(-1.0f, -1.0f, -1.0f);
glNormal3f(0.0f, 0.0f, -1.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(-1.0f, 1.0f, -1.0f);
glNormal3f(0.0f, 0.0f, -1.0f);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(1.0f, 1.0f, -1.0f);
//left
glNormal3f(-1.0f, 0.0f, 0.0f);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(-1.0f, -1.0f, -1.0f);
glNormal3f(-1.0f, 0.0f, 0.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(-1.0f, -1.0f, 1.0f);
glNormal3f(-1.0f, 0.0f, 0.0f);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(-1.0f, 1.0f, 1.0f);
glNormal3f(-1.0f, 0.0f, 0.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(-1.0f, 1.0f, -1.0f);
//top
glNormal3f(0.0f, 1.0f, 0.0f);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(-1.0f, 1.0f, 1.0f);
glNormal3f(0.0f, 1.0f, 0.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(1.0f, 1.0f, 1.0f);
glNormal3f(0.0f, 1.0f, 0.0f);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(1.0f, 1.0f, -1.0f);
glNormal3f(0.0f, 1.0f, 0.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(-1.0f, 1.0f, -1.0f);
//bottom
glNormal3f(0.0f, -1.0f, 0.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(-1.0f, -1.0f, -1.0f);
glNormal3f(0.0f, -1.0f, 0.0f);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(1.0f, -1.0f, -1.0f);
glNormal3f(0.0f, -1.0f, 0.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(1.0f, -1.0f, 1.0f);
glNormal3f(0.0f, -1.0f, 0.0f);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(-1.0f, -1.0f, 1.0f);
glEnd();
#pragma endregion
glEnable(GL_DEPTH_TEST);
glPopMatrix();
glPushMatrix();
#pragma region wall
glBindTexture(GL_TEXTURE_2D, myTexture);
glTranslatef(0.0, 0.0, 0.0);
glScalef(5.0f, 5.0f, 5.0f);
glBegin(GL_QUADS);
// first face
glNormal3f(1.0f, 0.0f, 0.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(0.0f, 1.0f, 0.0f);
// second face
glNormal3f(1.0f, 0.0f, 0.0f);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(1.0f, 1.0f, 0.0f);
// third face
glNormal3f(1.0f, 0.0f, 0.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(1.0f, 0.0f, 0.0f);
// fourth face
glNormal3f(1.0f, 0.0f, 0.0f);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(0.0f, 0.0f, 0.0f);
glEnd();
glPopMatrix();
glPushMatrix();
glBindTexture(GL_TEXTURE_2D, myTexture);
glScalef(5.0f, 5.0f, 5.0f);
glBegin(GL_QUADS);
// first face
glNormal3f(1.0f, 0.0f, 0.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(0.0f, 0.0f, 0.0f);
// second face
glNormal3f(1.0f, 0.0f, 0.0f);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(1.0f, 0.0f, 0.0f);
// third face
glNormal3f(1.0f, 0.0f, 0.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(1.0f, 0.0f, -1.0f);
// fourth face
glNormal3f(1.0f, 0.0f, 0.0f);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(0.0f, 0.0f, -1.0f);
glEnd();
#pragma endregion
glPopMatrix();
glPushMatrix();
// Render sun
glEnable(GL_TEXTURE_2D);
glColor3f(1.0f, 1.0f, 1.0f);
glBindTexture(GL_TEXTURE_2D, NULL);
glTranslatef(0.5, 0.5, -0.5);
glColor3f(1.0f, 0.0f, 0.0f);
gluSphere(gluNewQuadric(), 0.20, 20, 20);
glPushMatrix(); // Push for default matrix
// Render Planet 1
glRotatef(rotation, 0.5, 0.5, 0);
glTranslatef(0, 0, 1);
glScalef(1, 1, 1);
glColor3f(0.0f, 2.0f, 0.0f);
gluSphere(gluNewQuadric(), 0.20, 10, 10);
glPopMatrix(); // Pop off stack back to sun matrix
glPushMatrix(); // Push for default matrix
// Render Planet 2
glRotatef(rotation2, 0, 1, 0);
glTranslatef(2, 0, 0);
glScalef(0.5, 0.5, 0.5);
glColor3f(0.0f, 0.0f, 1.0f);
gluSphere(gluNewQuadric(), 0.20, 5, 5);
glPushMatrix(); // Pop back to sun
// Render a moon around Planet 2
glRotatef((rotation*2.0), 0, 1, 0);
glTranslatef(1.5, 0, 0);
glScalef(0.3, 0.3, 0.3);
glColor3f(0.0f, 0.0f, 1.0f);
gluSphere(gluNewQuadric(), 0.20, 20, 20);
glPopMatrix(); // Pop to planet 2
glPushMatrix(); // Push for default matrix
// Render a SECOND moon around Planet 2
glRotatef((rotation * 2), 0, 0, 1);
glTranslatef(1.5, 0, 0);
glScalef(0.3, 0.3, 0.3);
glColor3f(0.0f, 0.0f, 1.0f);
gluSphere(gluNewQuadric(), 0.20, 20, 20);
glPopMatrix();
//glPopMatrix();
glPopMatrix(); // Go back to sun!
glPushMatrix();
glTranslatef(2, 2, 2);
glColor3f(1, 0, 0);
gluSphere(gluNewQuadric(), 0.5, 20, 20);
glPopMatrix();
// End render geometry --------------------------------------
// Render text, should be last object rendered.
renderTextOutput();
// Swap buffers, after all objects are rendered.
glutSwapBuffers();
}
// Handles the resize of the window. If the window changes size the perspective matrix requires re-calculation to match new window size.
void Scene::resize(int w, int h)
{
width = w;
height = h;
// Prevent a divide by zero, when window is too short
// (you cant make a window of zero width).
if (h == 0)
h = 1;
float ratio = (float)w / (float)h;
fov = 45.0f;
nearPlane = 0.1f;
farPlane = 100.0f;
// Use the Projection Matrix
glMatrixMode(GL_PROJECTION);
// Reset Matrix
glLoadIdentity();
// Set the viewport to be the entire window
glViewport(0, 0, w, h);
// Set the correct perspective.
gluPerspective(fov, ratio, nearPlane, farPlane);
// Get Back to the Modelview
glMatrixMode(GL_MODELVIEW);
}
// Calculates FPS
void Scene::calculateFPS()
{
frame++;
time = glutGet(GLUT_ELAPSED_TIME);
if (time - timebase > 1000) {
sprintf_s(fps, "FPS: %4.2f", frame*1000.0 / (time - timebase));
timebase = time;
frame = 0;
}
}
// Compiles standard output text including FPS and current mouse position.
void Scene::renderTextOutput()
{
// Render current mouse position and frames per second.
sprintf_s(mouseText, "Mouse: %i, %i", input->getMouseX(), input->getMouseY());
displayText(-1.f, 0.96f, 1.f, 0.f, 0.f, mouseText);
displayText(-1.f, 0.90f, 1.f, 0.f, 0.f, fps);
}
// Renders text to screen. Must be called last in render function (before swap buffers)
void Scene::displayText(float x, float y, float r, float g, float b, char* string) {
// Get Lenth of string
int j = strlen(string);
// Swap to 2D rendering
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-1.0, 1.0, -1.0, 1.0, 5, 100);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
// Orthographic lookAt (along the z-axis).
gluLookAt(0.0f, 0.0f, 10.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);
// Set text colour and position.
glColor3f(r, g, b);
glRasterPos2f(x, y);
// Render text.
for (int i = 0; i < j; i++) {
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_12, string[i]);
}
// Reset colour to white.
glColor3f(1.f, 1.f, 1.f);
// Swap back to 3D rendering.
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(fov, ((float)width/(float)height), nearPlane, farPlane);
glMatrixMode(GL_MODELVIEW);
}
Updated sun code :
// Render sun
glTranslatef(0.5, 0.5, -0.5);
glColor3f(1.0f, 0.0f, 0.0f);
gluSphere(gluNewQuadric(), 0.20, 20, 20);
glPushMatrix(); // Push for default matrix
// Render Planet 1
glRotatef(rotation, 0.5, 0.5, 0);
glTranslatef(0, 0, 1);
glScalef(1, 1, 1);
glColor3f(0.0f, 2.0f, 0.0f);
gluSphere(gluNewQuadric(), 0.20, 10, 10);
glPopMatrix(); // Pop off stack back to sun matrix
glPushMatrix(); // Push for default matrix

Answer 1

Found out i was missing a OpenGL setting
glEnable(GL_COLOR_MATERIAL);
Inserted at the start of Scene

Answer 2

Try to end glEnable(GL_TEXTURE_2D); with glDisable(GL_TEXTURE_2D); after you render sun.
If problem appeared after you added skybox. Check if vertices are in right order.