при таких раскладах уже рисуется сфера, но это не есть гуд, взял из примеров проект, на нем и пробовал:
| Код |
//---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop
#include "GlSkel.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TFormMain *FormMain;
//---------------------------------------------------------------------------
__fastcall TFormMain::TFormMain(TComponent* Owner)
: TForm(Owner)
{
Application->OnIdle = IdleLoop;
size = 50.0f;
}
//---------------------------------------------------------------------------
void __fastcall TFormMain::IdleLoop(TObject*, bool& done)
{
done = false;
RenderGLScene();
SwapBuffers(hdc);
}
//---------------------------------------------------------------------------
void __fastcall TFormMain::FormCreate(TObject *Sender)
{
hdc = GetDC(Handle);
SetPixelFormatDescriptor();
hrc = wglCreateContext(hdc);
if(hrc == NULL)
ShowMessage(":-)~ hrc == NULL");
if(wglMakeCurrent(hdc, hrc) == false)
ShowMessage("Could not MakeCurrent");
w = ClientWidth;
h = ClientHeight;
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
SetupLighting();
SetupTextures();
CreateInpriseCorporateLogo();
}
//---------------------------------------------------------------------------
void __fastcall TFormMain::SetPixelFormatDescriptor()
{
PIXELFORMATDESCRIPTOR pfd = {
sizeof(PIXELFORMATDESCRIPTOR),
1,
PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER,
PFD_TYPE_RGBA,
24,
0,0,0,0,0,0,
0,0,
0,0,0,0,0,
32,
0,
0,
PFD_MAIN_PLANE,
0,
0,0,
};
PixelFormat = ChoosePixelFormat(hdc, &pfd);
SetPixelFormat(hdc, PixelFormat, &pfd);
}
//---------------------------------------------------------------------------
void __fastcall TFormMain::FormResize(TObject *Sender)
{
GLfloat nRange = 50.0;
w = ClientWidth;
h = ClientHeight;
if(h == 0)
h = 1;
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
if (w <= h)
glOrtho (-nRange, nRange, -nRange*h/w, nRange*h/w, -nRange, nRange);
else
glOrtho (-nRange*w/h, nRange*w/h, -nRange, nRange, -nRange, nRange);
//For perspective correction
//GLfloat aspect = (GLfloat)w/(GLfloat)h;
//gluPerspective(30.0f, aspect, 1.0, 50.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
//---------------------------------------------------------------------------
void __fastcall TFormMain::RenderGLScene()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
DrawObjects();
glFlush();
}
//---------------------------------------------------------------------------
void __fastcall TFormMain::DrawObjects()
{ /*
//GoldCube
glBindTexture(GL_TEXTURE_2D, texture1);
//Body
glPushMatrix();
glColor3f(0.8f, 0.8f, 0.8f);
glTranslatef(0.0f, 15.0f, 20.0f);
glRotatef(90, 1.0, 0.0, 0.0);
glCallList(startoflist);
glPopMatrix();
*/
/*
//Top
glPushMatrix();
glDisable(GL_CULL_FACE);
glColor3f(0.8f, 0.8f, 0.8f);
glTranslatef(0.0f, 15.0f, 20.0f);
glRotatef(-90, 1.0, 0.0, 0.0);
glCallList(startoflist + 1);
glEnable(GL_CULL_FACE);
glPopMatrix();
//Bottom
glPushMatrix();
glColor3f(0.8f, 0.8f, 0.8f);
glTranslatef(0.0f, -10.0f, 20.0f);
glRotatef(90, 1.0, 0.0, 0.0);
glCallList(startoflist + 2);
glPopMatrix();
*/
/*
//Red Pyramid
glBindTexture(GL_TEXTURE_2D, texture2);
//Body
glPushMatrix();
glColor3f(1.0f, 0.0f, 0.0f);
glTranslatef(-20.0f, -10.0f, -5.0);
glRotatef(-90, 1.0, 0.0, 0.0);
glCallList(startoflist + 3);
glPopMatrix();
*/
/*
//Bottom
glPushMatrix();
glColor3f(1.0f, 0.0f, 0.0f);
glTranslatef(-20.0f, -10.0f, -5.0);
glRotatef(90, 1.0, 0.0, 0.0);
glCallList(startoflist + 4);
glPopMatrix();
*/
//Blue Sphere
glPushMatrix();
glBindTexture(GL_TEXTURE_2D, texture3);
glColor3f(0.0f, 0.0f, 1.0f);
glTranslatef(15.0, 5.0f, -7.5f);
glRotatef(90, 1.0, 0.0, 0.0);
glRotatef(90, 0.0, 0.0, 1.0);
glCallList(startoflist + 5);
glPopMatrix();
/*
//Ring
glPushMatrix();
glDisable(GL_CULL_FACE);
glRotatef(-90, 1.0, 0.0, 0.0);
glCallList(startoflist + 6);
glEnable(GL_CULL_FACE);
glPopMatrix();
*/
}
//---------------------------------------------------------------------------
void __fastcall TFormMain::FormPaint(TObject *Sender)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glFlush();
DrawObjects();
}
//---------------------------------------------------------------------------
void __fastcall TFormMain::FormDestroy(TObject *Sender)
{
gluDeleteQuadric(GoldCube);
gluDeleteQuadric(GoldCubeTop);
gluDeleteQuadric(GoldCubeBottom);
gluDeleteQuadric(RedPyramid);
gluDeleteQuadric(RedPyramidBottom);
gluDeleteQuadric(BlueSphere);
gluDeleteQuadric(Ring);
delete bitmap;
wglMakeCurrent(NULL, NULL);
wglDeleteContext(hrc);
}
//---------------------------------------------------------------------------
void __fastcall TFormMain::CreateInpriseCorporateLogo()
{
startoflist = glGenLists(4);
DrawGoldCube();
DrawRedPyramid();
DrawBlueSphere();
DrawRing();
}
//---------------------------------------------------------------------------
void __fastcall TFormMain::DrawGoldCube()
{
GoldCube = gluNewQuadric();
GoldCubeTop = gluNewQuadric();
GoldCubeBottom = gluNewQuadric();
glBindTexture(GL_TEXTURE_2D, texture1);
gluQuadricTexture(GoldCube, GL_TRUE);
gluQuadricDrawStyle(GoldCube, GLU_FILL);
gluQuadricNormals(GoldCube, GLU_SMOOTH);
gluQuadricTexture(GoldCubeTop, GL_TRUE);
gluQuadricDrawStyle(GoldCubeTop, GLU_FILL);
gluQuadricNormals(GoldCubeTop, GLU_SMOOTH);
gluQuadricTexture(GoldCubeBottom, GL_TRUE);
gluQuadricDrawStyle(GoldCubeBottom, GLU_FILL);
gluQuadricNormals(GoldCubeBottom, GLU_SMOOTH);
glNewList(startoflist, GL_COMPILE);
gluCylinder(GoldCube, 15, 15, 25, 4, 10);
glEndList();
glNewList(startoflist + 1, GL_COMPILE);
gluDisk(GoldCubeTop, 0, 15, 4, 1);
glEndList();
glNewList(startoflist + 2, GL_COMPILE);
gluDisk(GoldCubeBottom, 0, 15, 4, 1);
glEndList();
}
//---------------------------------------------------------------------------
void __fastcall TFormMain::DrawRedPyramid()
{
RedPyramid = gluNewQuadric();
RedPyramidBottom = gluNewQuadric();
glBindTexture(GL_TEXTURE_2D, texture2);
gluQuadricTexture(RedPyramid, GL_TRUE);
gluQuadricDrawStyle(RedPyramid, GLU_FILL);
gluQuadricNormals(RedPyramid, GLU_SMOOTH);
gluQuadricTexture(RedPyramidBottom, GL_TRUE);
gluQuadricDrawStyle(RedPyramidBottom, GLU_FILL);
gluQuadricNormals(RedPyramidBottom, GLU_SMOOTH);
glNewList(startoflist + 3, GL_COMPILE);
gluCylinder(RedPyramid, 16, 0, 35, 4, 10);
glEndList();
glNewList(startoflist + 4, GL_COMPILE);
gluCylinder(RedPyramidBottom, 16, 0, 1, 4, 10);
glEndList();
}
//---------------------------------------------------------------------------
void __fastcall TFormMain::DrawBlueSphere()
{
BlueSphere = gluNewQuadric();
glBindTexture(GL_TEXTURE_2D, texture3);
gluQuadricTexture(BlueSphere, GL_TRUE);
gluQuadricDrawStyle(BlueSphere, GLU_FILL);
gluQuadricNormals(BlueSphere, GLU_SMOOTH);
glNewList(startoflist + 5, GL_COMPILE);
gluSphere(BlueSphere, 15, 25, 25);
glEndList();
}
//---------------------------------------------------------------------------
void __fastcall TFormMain::DrawRing()
{
Ring = gluNewQuadric();
glColor3f(1.0f, 1.0f, 1.0f);
gluQuadricDrawStyle(Ring, GLU_FILL);
gluQuadricNormals(Ring, GLU_SMOOTH);
glNewList(startoflist + 6, GL_COMPILE);
gluDisk(Ring, 24, 25, 50, 50);
glEndList();
}
//---------------------------------------------------------------------------
void __fastcall TFormMain::FormKeyDown(TObject *Sender, WORD &Key,
TShiftState Shift)
{
if(Key == VK_UP)
glRotatef(-5, 1.0, 0.0, 0.0);
if(Key == VK_DOWN)
glRotatef(5, 1.0, 0.0, 0.0);
if(Key == VK_LEFT)
glRotatef(-5, 0.0, 1.0, 0.0);
if(Key == VK_RIGHT)
glRotatef(5, 0.0, 1.0, 0.0);
}
//---------------------------------------------------------------------------
void __fastcall TFormMain::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[] = {0.5, 1.0, 1.0, 0.0};
GLfloat LightAmbient[] = {0.5, 0.5, 0.5, 1.0};
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);
}
//---------------------------------------------------------------------------
void __fastcall TFormMain::SetupTextures()
{
bitmap = new Graphics::TBitmap;
bitmap->LoadFromFile("red.bmp");
GLubyte bits[64][64][4];
for(int i = 0; i < 64; i++)
{
for(int j = 0; j < 64; j++)
{
bits[i][j][0]= (GLbyte)GetRValue(bitmap->Canvas->Pixels[i][j]);
bits[i][j][1]= (GLbyte)GetGValue(bitmap->Canvas->Pixels[i][j]);
bits[i][j][2]= (GLbyte)GetBValue(bitmap->Canvas->Pixels[i][j]);
bits[i][j][3]= (GLbyte)255;
}
}
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
glGenTextures(1, &texture1);
glBindTexture(GL_TEXTURE_2D, texture1);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 64, 64, 0, GL_RGBA, GL_UNSIGNED_BYTE, bits);
bitmap->LoadFromFile("gold.bmp");
for(int i = 0; i < 64; i++)
{
for(int j = 0; j < 64; j++)
{
bits[i][j][0]= (GLbyte)GetRValue(bitmap->Canvas->Pixels[i][j]);
bits[i][j][1]= (GLbyte)GetGValue(bitmap->Canvas->Pixels[i][j]);
bits[i][j][2]= (GLbyte)GetBValue(bitmap->Canvas->Pixels[i][j]);
bits[i][j][3]= (GLbyte)255;
}
}
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
glGenTextures(1, &texture2);
glBindTexture(GL_TEXTURE_2D, texture2);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 64, 64, 0, GL_RGBA, GL_UNSIGNED_BYTE, bits);
bitmap->LoadFromFile("blue.bmp");
for(int i = 0; i < 64; i++)
{
for(int j = 0; j < 64; j++)
{
bits[i][j][0]= (GLbyte)GetRValue(bitmap->Canvas->Pixels[i][j]);
bits[i][j][1]= (GLbyte)GetGValue(bitmap->Canvas->Pixels[i][j]);
bits[i][j][2]= (GLbyte)GetBValue(bitmap->Canvas->Pixels[i][j]);
bits[i][j][3]= (GLbyte)255;
}
}
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
glGenTextures(1, &texture3);
glBindTexture(GL_TEXTURE_2D, texture3);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 64, 64, 0, GL_RGBA, GL_UNSIGNED_BYTE, bits);
glEnable(GL_TEXTURE_2D);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
}
|
а вот и GLSkel.h
| Код |
//---------------------------------------------------------------------------
#ifndef GlSkelH
#define GlSkelH
//---------------------------------------------------------------------------
#include <Classes.hpp>
#include <Controls.hpp>
#include <StdCtrls.hpp>
#include <Forms.hpp>
#include <gl\gl.h>
#include <gl\glu.h>
//---------------------------------------------------------------------------
class TFormMain : public TForm
{
__published: // IDE-managed Componentsvoid __fastcall FormCreate(TObject *Sender);
void __fastcall FormResize(TObject *Sender);
void __fastcall FormPaint(TObject *Sender);
void __fastcall FormDestroy(TObject *Sender);
void __fastcall FormCreate(TObject *Sender);
void __fastcall FormKeyDown(TObject *Sender, WORD &Key,
TShiftState Shift);
private: // User declarations
HDC hdc;
HGLRC hrc;
int PixelFormat;
GLuint startoflist;
GLfloat x, y, xstep, ystep, w, h;
GLsizei size;
GLuint texture1, texture2, texture3;
GLUquadricObj* GoldCube, *GoldCubeTop, *GoldCubeBottom,
*RedPyramid, *RedPyramidBottom, *BlueSphere, *Ring;
Graphics::TBitmap* bitmap;
public: // User declarations
__fastcall TFormMain(TComponent* Owner);
void __fastcall IdleLoop(TObject*, bool&);
void __fastcall RenderGLScene();
void __fastcall SetPixelFormatDescriptor();
void __fastcall DrawObjects();
void __fastcall CreateInpriseCorporateLogo();
void __fastcall DrawGoldCube();
void __fastcall DrawRedPyramid();
void __fastcall DrawBlueSphere();
void __fastcall DrawRing();
void __fastcall SetupLighting();
void __fastcall SetupTextures();
};
//---------------------------------------------------------------------------
extern PACKAGE TFormMain *FormMain;
//---------------------------------------------------------------------------
#endif
|
я дуб в графике, поясните мне что да как, куда хоть тыкаться |
