bool DrawGLScene(GLvoid) // Here's Where We Do All The Drawing
{ if (bumps) {
if (useMultitexture && maxTexelUnits>1)
return doMesh2TexelUnits();
else return doMesh1TexelUnits();
}
else return doMeshNoBumps();
}
void Sample_22::draw()
{
if (m_bumps) {
if (m_useMultitexture && m_maxTexelUnits>1)
doMesh2TexelUnits();
else doMesh1TexelUnits();
}
else doMeshNoBumps();
m_xrot+=0.3f; // X Axis Rotation
m_yrot+=0.2f; // Y Axis Rotation
m_zrot+=0.4f; // Z Axis Rotation
}
GLvoid NEHE22::DrawGLScene(){
if (bumps) {
if (useMultitexture && maxTexelUnits>1){
doMesh2TexelUnits();
}
else{
doMesh1TexelUnits();
}
}
else{
doMeshNoBumps();
}
//draw FPS text
GLint matrixMode;
GLboolean lightingOn;
lightingOn= glIsEnabled(GL_LIGHTING); /* lighting on? */
if (lightingOn) glDisable(GL_LIGHTING);
glGetIntegerv(GL_MATRIX_MODE, &matrixMode); /* matrix mode? */
glDisable(GL_TEXTURE_2D);
glDisable(GL_DEPTH_TEST);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glPushAttrib(GL_COLOR_BUFFER_BIT); /* save current colour */
glTranslatef(0.0f,0.0f,-1.0f);
glColor3f(0.8f,0.8f,0.8f);//set text color
computeFPS();
Utils::drawText(-0.98f,-0.98f, GLUT_BITMAP_HELVETICA_12, FPSstr);
glPopAttrib();
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(matrixMode);
if (lightingOn) glEnable(GL_LIGHTING);
glEnable(GL_TEXTURE_2D); // Enable Texture Mapping
glEnable(GL_DEPTH_TEST);
glutSwapBuffers();
// handle keyboard input
if (keys['e']){
keys['e']=false;
emboss=!emboss;
}
if (keys['m']){
keys['m']=false;
useMultitexture=((!useMultitexture) && multitextureSupported);
}
if (keys['b']){
keys['b']=false;
bumps=!bumps;
}
if (keys['f']){
keys['f']=false;
filter++;
filter%=3;
}
if(specialKeys[GLUT_KEY_PAGE_UP]){
z-=0.02f;
}
if(specialKeys[GLUT_KEY_PAGE_DOWN]){
z+=0.02f;
}
if (specialKeys[GLUT_KEY_UP]){
xspeed-=0.01f;
}
if (specialKeys[GLUT_KEY_DOWN]){
xspeed+=0.01f;
}
if (specialKeys[GLUT_KEY_RIGHT]){
yspeed+=0.01f;
}
if (specialKeys[GLUT_KEY_LEFT]){
yspeed-=0.01f;
}
}
