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Написал небольшой редактор, когда рисую объекты, например, с помощью ф-ции auxSolidSphere, то цвет меняется с серого на белый:   здесь часть кода: | Код |
//---------------------------------------------------------------------------
//----- COpenGL -------------------------------------------------------------
//---------------------------------------------------------------------------
COpenGL::COpenGL(NWndStyle AStyle) : CCanvas(AStyle)
{
M1.Set(0, 0);
M2.Set(App->Screen->GetWidth(), App->Screen->GetHeight());
Create();
// CreateWnd();
Paint_Create();
}
void SetupLighting()
{
GLfloat MaterialAmbient[] = {0.5, 0.5, 0.5, 1.0};
GLfloat MaterialDiffuse[] = {1.0, 1.0, 1.0, 1.0};
GLfloat MaterialSpecular[] = {1.0, 1.0, 1.0, 1.0};
GLfloat MaterialShininess[] = {50.0};
GLfloat AmbientLightPosition[] = {-10.0, 10.0, -10.0, 0.0};
GLfloat LightAmbient[] = {0.5, 0.5, 0.5, 0};
glMaterialfv(GL_FRONT, GL_AMBIENT, MaterialAmbient);
glMaterialfv(GL_FRONT, GL_DIFFUSE, MaterialDiffuse);
glMaterialfv(GL_FRONT, GL_SPECULAR, MaterialSpecular);
glMaterialfv(GL_FRONT, GL_SHININESS, MaterialShininess);
glLightfv(GL_LIGHT0, GL_POSITION, AmbientLightPosition);
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, LightAmbient);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_COLOR_MATERIAL);
glColorMaterial(GL_FRONT, GL_AMBIENT_AND_DIFFUSE);
glShadeModel(GL_SMOOTH);
}
bool COpenGL::Paint_Create()
{
hdc = GetDC(hwnd);
PIXELFORMATDESCRIPTOR pfd;
memset(&pfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
pfd.cDepthBits = 32;
int N = ChoosePixelFormat(hdc, &pfd);
SetPixelFormat (hdc, N, &pfd);
hrc = wglCreateContext(hdc);
wglMakeCurrent(hdc, hrc);
// glEnable(GL_DEPTH_TEST);
// glEnable(GL_CULL_FACE);
SetupLighting();
glViewport(0, 0, W1Const, H1Const);
glPushMatrix();
glScaled(2.0 / (W1Const), 2.0 / (H1Const), ZScale);
glRotated(-90, 0, 0, 1);
glTranslated(HConst / 2 - GetHeight() + Koef, -WConst / 2, ZTrans);
// gluOrtho2D(0, 0, 800, 600);
return true;
}
bool COpenGL::Paint_Rechange()
{
glPopMatrix();
glPushMatrix();
glScaled(2.0 / (W1Const), 2.0 / (H1Const), ZScale);
glRotated(-90, 0, 0, 1);
glTranslated(HConst / 2 - GetHeight() + Koef, -WConst / 2, ZTrans);
return true;
}
bool COpenGL::Paint_Begin()
{
Paint_Rechange();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_ACCUM_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
return true;
}
bool COpenGL::Paint_End()
{
glFlush();
SwapBuffers(hdc);
return true;
}
bool COpenGL::Paint_Destroy()
{
glPopMatrix();
wglMakeCurrent(NULL, NULL);
ReleaseDC(hwnd, hdc);
return true;
}
void COpenGL::SetColor(CColor C)
{
CCanvas::SetColor(C);
}
void COpenGL::SetColor(real R, real G, real B)
{
CCanvas::SetColor(R, G, B);
glColor3f(R, G, B);
}
void COpenGL::Pen_Line(CRect R)
{
real X1 = R.M1.X;
real Y1 = R.M1.Y;
real X2 = R.M2.X;
real Y2 = R.M2.Y;
glBegin(GL_LINES);
glVertex2f (X1, Y1);
glVertex2f (X2, Y2);
glEnd();
glBegin(GL_POINTS);
glVertex2f (X2, Y2);
glEnd();
}
void COpenGL::Pen_Rectangle(CRect R)
{
real X1 = R.M1.X;
real Y1 = R.M1.Y;
real X2 = R.M2.X;
real Y2 = R.M2.Y;
// glEdgeFlag(true);
Pen_Line(CRect(X1, Y1, X2, Y1, false));
Pen_Line(CRect(X2, Y1, X2, Y2, false));
Pen_Line(CRect(X2, Y2, X1, Y2, false));
Pen_Line(CRect(X1, Y2, X1, Y1, false));
}
void COpenGL::Pen_Ellipse(CRect R)
{
real X1 = R.M1.X;
real Y1 = R.M1.Y;
real X2 = R.M2.X;
real Y2 = R.M2.Y;
real Two = 2;
real XMid = Round((X1 + X2) / Two);
real YMid = Round((Y1 + Y2) / Two);
real RX = XMid - X1;
real RY = YMid - Y1;
glBegin(GL_LINE_LOOP);
real TwoPI(2 * M_PI);
real Step(M_PI / 64);
for (real i = 0; i < TwoPI; i += Step)
{
real X = XMid + cosl(i) * RX;
real Y = YMid + sinl(i) * RY;
glVertex2f(X, Y);
}
glEnd();
}
void COpenGL::Pen_SetStyle(int value)
{
Pen_Style = value;
if (Pen_Style != 0)
{
glEnable(GL_LINE_STIPPLE);
if (Pen_Style == 1) glLineStipple(1, 0x0f0f);
if (Pen_Style == 2) glLineStipple(1, 0x5555);
}
else {
glDisable(GL_LINE_STIPPLE);
glLineStipple(1, 0xffff);
}
}
void COpenGL::Brush_Rectangle(CRect R)
{
CRect r = R;
r.ChangeRect(0, 0, 1, 1);
glBegin(GL_QUADS);
glVertex2f(r.M1.X, r.M1.Y);
glVertex2f(r.M2.X, r.M1.Y);
glVertex2f(r.M2.X, r.M2.Y);
glVertex2f(r.M1.X, r.M2.Y);
glEnd();
}
void COpenGL::Brush_Ellipse(CRect R)
{
real X1 = R.M1.X;
real Y1 = R.M1.Y;
real X2 = R.M2.X;
real Y2 = R.M2.Y;
real XMid = Round((X1 + X2) / 2);
real YMid = Round((Y1 + Y2) / 2);
real RX = XMid - X1;
real RY = YMid - Y1;
real TwoPI(2 * M_PI);
real Step(M_PI / 32);
glBegin(GL_POLYGON);
for (real i = 0; i < TwoPI; i += Step)
{
real X = XMid + cosl(i) * RX;
real Y = YMid + sinl(i) * RY;
glVertex2f(X, Y);
}
glEnd();
}
void COpenGL::Cube(CRect R)
{
// Pen_Rectangle(R);
real X = R.M1.X;
real Y = R.M1.Y;
real W = R.GetWidth();
real H = R.GetHeight();
glPushMatrix();
glTranslated(Y + H / 2, X + W / 2, 0);
glScaled(H, W, 1);
glRotated(90, 0, 0, 1);
glRotated(45, 45, 45, 1);
auxSolidCube(0.6);
glPopMatrix();
}
void COpenGL::Sphere(CRect R)
{
real X = R.M1.X;
real Y = R.M1.Y;
real W = R.GetWidth();
real H = R.GetHeight();
glPushMatrix();
glTranslated(Y + H / 2, X + W / 2, 0);
glScaled(H, W, 1);
glRotated(90, 0, 0, 1);
// glRotated(45, 45, 45, 1);
auxSolidSphere(0.5);
glPopMatrix();
}
void COpenGL::Teapot(CRect R)
{
real X = R.M1.X;
real Y = R.M1.Y;
real W = R.GetWidth();
real H = R.GetHeight();
glPushMatrix();
glTranslated(Y + H / 2, X + W / 2, 0);
glScaled(H, W, 1);
glRotated(90, 0, 0, 1);
// glRotated(45, 45, 45, 1);
auxSolidTeapot(0.3);
glPopMatrix();
}
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В чём может быть проблема? |
Проблема с цветом в OpenGL 
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