OpenGLCube.h

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// Copyright 2015 Sensics, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//        http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef INCLUDED_OpenGLCube_h_GUID_CC4A4D86_AD2D_4FBC_82F1_877BEEBA8434
#define INCLUDED_OpenGLCube_h_GUID_CC4A4D86_AD2D_4FBC_82F1_877BEEBA8434

void draw_cube(double radius) {
    static const GLfloat matspec[4] = {0.5, 0.5, 0.5, 0.0};
    static const float red_col[] = {1.0, 0.0, 0.0};
    static const float grn_col[] = {0.0, 1.0, 0.0};
    static const float blu_col[] = {0.0, 0.0, 1.0};
    static const float yel_col[] = {1.0, 1.0, 0.0};
    static const float lightblu_col[] = {0.0, 1.0, 1.0};
    static const float pur_col[] = {1.0, 0.0, 1.0};
    glPushMatrix();
    glScaled(radius, radius, radius);
    glMaterialfv(GL_FRONT, GL_SPECULAR, matspec);
    glMaterialf(GL_FRONT, GL_SHININESS, 64.0);
    glBegin(GL_POLYGON);
    glColor3fv(lightblu_col);
    glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, lightblu_col);
    glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, lightblu_col);
    glNormal3f(0.0, 0.0, -1.0);
    glVertex3f(1.0, 1.0, -1.0);
    glVertex3f(1.0, -1.0, -1.0);
    glVertex3f(-1.0, -1.0, -1.0);
    glVertex3f(-1.0, 1.0, -1.0);
    glEnd();
    glBegin(GL_POLYGON);
    glColor3fv(blu_col);
    glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, blu_col);
    glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, blu_col);
    glNormal3f(0.0, 0.0, 1.0);
    glVertex3f(-1.0, 1.0, 1.0);
    glVertex3f(-1.0, -1.0, 1.0);
    glVertex3f(1.0, -1.0, 1.0);
    glVertex3f(1.0, 1.0, 1.0);
    glEnd();
    glBegin(GL_POLYGON);
    glColor3fv(yel_col);
    glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, yel_col);
    glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, yel_col);
    glNormal3f(0.0, -1.0, 0.0);
    glVertex3f(1.0, -1.0, 1.0);
    glVertex3f(-1.0, -1.0, 1.0);
    glVertex3f(-1.0, -1.0, -1.0);
    glVertex3f(1.0, -1.0, -1.0);
    glEnd();
    glBegin(GL_POLYGON);
    glColor3fv(grn_col);
    glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, grn_col);
    glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, grn_col);
    glNormal3f(0.0, 1.0, 0.0);
    glVertex3f(1.0, 1.0, 1.0);
    glVertex3f(1.0, 1.0, -1.0);
    glVertex3f(-1.0, 1.0, -1.0);
    glVertex3f(-1.0, 1.0, 1.0);
    glEnd();
    glBegin(GL_POLYGON);
    glColor3fv(pur_col);
    glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, pur_col);
    glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, pur_col);
    glNormal3f(-1.0, 0.0, 0.0);
    glVertex3f(-1.0, 1.0, 1.0);
    glVertex3f(-1.0, 1.0, -1.0);
    glVertex3f(-1.0, -1.0, -1.0);
    glVertex3f(-1.0, -1.0, 1.0);
    glEnd();
    glBegin(GL_POLYGON);
    glColor3fv(red_col);
    glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, red_col);
    glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, red_col);
    glNormal3f(1.0, 0.0, 0.0);
    glVertex3f(1.0, -1.0, 1.0);
    glVertex3f(1.0, -1.0, -1.0);
    glVertex3f(1.0, 1.0, -1.0);
    glVertex3f(1.0, 1.0, 1.0);
    glEnd();
    glPopMatrix();
}

#endif // INCLUDED_OpenGLCube_h_GUID_CC4A4D86_AD2D_4FBC_82F1_877BEEBA8434