| private glStencilFunc ( uint func, int refx, uint mask ) : void | ||
| func | uint | |
| refx | int | |
| mask | uint | |
| return | void | |
void StartReflaction(int x, int y, int z)
{
GL.glEnable(GL.GL_BLEND);
GL.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);
//only floor, draw only to STENCIL buffer
GL.glEnable(GL.GL_STENCIL_TEST);
GL.glStencilOp(GL.GL_REPLACE, GL.GL_REPLACE, GL.GL_REPLACE);
GL.glStencilFunc(GL.GL_ALWAYS, 1, 0xFFFFFFFF); // draw floor always
GL.glColorMask((byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE);
GL.glDisable(GL.GL_DEPTH_TEST);
GL.glPushMatrix();
GL.glRotated(90, 0, 1, 0);
GL.glTranslatef(0, -4, 0);
mirror.Draw();
GL.glPopMatrix();
GL.glColorMask((byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE);
GL.glEnable(GL.GL_DEPTH_TEST);
// reflection is drawn only where STENCIL buffer value equal to 1
GL.glStencilFunc(GL.GL_EQUAL, 1, 0xFFFFFFFF);
GL.glStencilOp(GL.GL_KEEP, GL.GL_KEEP, GL.GL_KEEP);
GL.glEnable(GL.GL_STENCIL_TEST);
// draw reflected scene
GL.glPushMatrix();
GL.glScalef(x, y, z); //swap on Z axis
}
private void DrawAll()
{
GL.glEnable(GL.GL_BLEND);
GL.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);
//only floor, draw only to STENCIL buffer
GL.glEnable(GL.GL_STENCIL_TEST);
GL.glStencilOp(GL.GL_REPLACE, GL.GL_REPLACE, GL.GL_REPLACE);
GL.glStencilFunc(GL.GL_ALWAYS, 1, 0xFFFFFFFF); // draw floor always
GL.glColorMask((byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE);
GL.glDisable(GL.GL_DEPTH_TEST);
DrawSea();
// restore regular settings
GL.glColorMask((byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE);
GL.glEnable(GL.GL_DEPTH_TEST);
// reflection is drawn only where STENCIL buffer value equal to 1
GL.glStencilFunc(GL.GL_EQUAL, 1, 0xFFFFFFFF);
GL.glStencilOp(GL.GL_KEEP, GL.GL_KEEP, GL.GL_KEEP);
GL.glEnable(GL.GL_STENCIL_TEST);
// draw reflected scene
GL.glPushMatrix();
GL.glEnable(GL.GL_CULL_FACE);
GL.glScalef(1, 1, -1); //swap on Z axis
GL.glCullFace(GL.GL_FRONT);
DrawReflected();
GL.glCullFace(GL.GL_BACK);
DrawReflected();
GL.glDisable(GL.GL_CULL_FACE);
GL.glPopMatrix();
// really draw floor
//( half-transparent ( see its color's alpha byte)))
// in order to see reflected objects
GL.glDepthMask((byte)GL.GL_FALSE);
DrawSea();
GL.glDepthMask((byte)GL.GL_TRUE);
// Disable GL.GL_STENCIL_TEST to show All, else it will be cut on GL.GL_STENCIL
GL.glDisable(GL.GL_STENCIL_TEST);
DrawReflected();
}
/**********************************************************************************************************
*
*
*
* MAIN DRAW FUNCTION
*
*
*
**********************************************************************************************************/
public void Draw()
{
if (m_uint_DC == 0 || m_uint_RC == 0)
{
return;
}
GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT | GL.GL_STENCIL_BUFFER_BIT);
GL.glViewport(0, 0, Width, Height);
GL.glLoadIdentity();
GLU.gluLookAt(ScrollValue[0], ScrollValue[1], ScrollValue[2],
ScrollValue[3], ScrollValue[4], ScrollValue[5],
ScrollValue[6], ScrollValue[7], ScrollValue[8]);
GL.glRotatef(xAngle, 1.0f, 0.0f, 0.0f);
GL.glRotatef(yAngle, 0.0f, 1.0f, 0.0f);
GL.glRotatef(zAngle, 0.0f, 0.0f, 1.0f);
GL.glTranslatef(xShift, yShift, zShift);
pos[0] = light_position[0] = ScrollValue[9];
pos[1] = light_position[1] = ScrollValue[10];
pos[2] = light_position[2] = ScrollValue[11];
pos[3] = light_position[3] = 0;
GL.glLightfv(GL.GL_LIGHT0, GL.GL_AMBIENT, light_ambient);
GL.glLightfv(GL.GL_LIGHT0, GL.GL_DIFFUSE, light_diffuse);
GL.glLightfv(GL.GL_LIGHT0, GL.GL_SPECULAR, light_specular);
GL.glLightfv(GL.GL_LIGHT0, GL.GL_POSITION, light_position);
GL.glLightModelfv(GL.GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
GL.glEnable(GL.GL_LIGHT0);
/*
*
* Reflection
*
*/
GL.glEnable(GL.GL_BLEND);
GL.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);
if (reflectionOn)
{
//draw only to STENCIL buffer
GL.glEnable(GL.GL_STENCIL_TEST);
GL.glStencilOp(GL.GL_REPLACE, GL.GL_REPLACE, GL.GL_REPLACE);
GL.glStencilFunc(GL.GL_ALWAYS, 1, 0xFFFFFFFF);
GL.glColorMask((byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE);
GL.glDisable(GL.GL_DEPTH_TEST);
drawLake();
// restore regular settings
GL.glColorMask((byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE);
GL.glEnable(GL.GL_DEPTH_TEST);
// reflection is drawn only where STENCIL buffer value equal to 1
GL.glStencilFunc(GL.GL_EQUAL, 1, 0xFFFFFFFF);
GL.glStencilOp(GL.GL_KEEP, GL.GL_KEEP, GL.GL_KEEP);
/*
*
* draw reflected scene
*
*/
GL.glEnable(GL.GL_LIGHTING);
for (currentTree = 0; currentTree < numOfTrees; currentTree++)
{
GL.glPushMatrix();
//GL.glTranslated(randX[currentTree], 0,randZ[currentTree]);
GL.glTranslated(locationX[currentTree], 0, locationZ[currentTree]);
GL.glRotated(locationRotateY[currentTree], 0, 1, 0);
GL.glScalef(1, -1, 1); //swap on Z axis
if (scullFaceOn)
{
GL.glEnable(GL.GL_CULL_FACE);
GL.glCullFace(GL.GL_BACK);
GL.glCallList(TREE_LIST + currentTree);
GL.glCullFace(GL.GL_FRONT);
GL.glCallList(TREE_LIST + currentTree);
GL.glDisable(GL.GL_CULL_FACE);
}
else
{
GL.glCallList(TREE_LIST + currentTree);
}
GL.glPopMatrix();
}
drawLake();
GL.glStencilFunc(GL.GL_NOTEQUAL, 1, 0xFFFFFFFF);
GL.glStencilOp(GL.GL_KEEP, GL.GL_KEEP, GL.GL_KEEP);
// really draw floor
//( half-transparent ( see its color's alpha byte)))
// in order to see reflected objects
//GL.glDepthMask((byte)GL.GL_FALSE);
GL.glDepthMask((byte)GL.GL_TRUE);
if (!textureOn)
{
drawFloor();
}
else
{
drawFloorTextured();
DrawTexturedCube();
}
GL.glDisable(GL.GL_LIGHTING);
GL.glDisable(GL.GL_STENCIL_TEST);
}
else
{
GL.glEnable(GL.GL_LIGHTING);
drawLake();
if (!textureOn)
{
drawFloor();
}
else
{
drawFloorTextured();
DrawTexturedCube();
}
GL.glDisable(GL.GL_LIGHTING);
}
DrawLight();
/*
* Draw trees
*/
GL.glEnable(GL.GL_LIGHTING);
GL.glPushMatrix();
for (currentTree = 0; currentTree < numOfTrees; currentTree++)
{
GL.glPushMatrix();
//GL.glTranslated(randX[currentTree], 0, randZ[currentTree]);
GL.glTranslated(locationX[currentTree], 0, locationZ[currentTree]);
GL.glRotated(locationRotateY[currentTree], 0, 1, 0);
GL.glCallList(TREE_LIST + currentTree);
GL.glPopMatrix();
}
GL.glPopMatrix();
/*
* Draw trees shadows
*/
GL.glDisable(GL.GL_LIGHTING);
GL.glColor3d(0, 0, 0);
if (shadowOn)
{
GL.glPushMatrix();
MakeShadowMatrix(ground);
GL.glMultMatrixf(cubeXform);
for (currentTree = 0; currentTree < numOfTrees; currentTree++)
{
GL.glPushMatrix();
//GL.glTranslated(randX[currentTree], 0, randZ[currentTree]);
GL.glTranslated(locationX[currentTree], 0, locationZ[currentTree]);
GL.glRotated(locationRotateY[currentTree], 0, 1, 0);
GL.glCallList(TREE_LIST + currentTree);
GL.glPopMatrix();
}
GL.glPopMatrix();
}
GL.glFlush();
WGL.wglSwapBuffers(m_uint_DC);
}
public void Draw()
{
pos[0] = -4 + (float)xExisOrigin + (float)ScrollValue[11];
pos[1] = 15 + (float)yExisOrigin + (float)ScrollValue[12];
pos[2] = 15 + (float)ScrollValue[13];
if (m_uint_DC == 0 || m_uint_RC == 0)
{
return;
}
GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT | GL.GL_STENCIL_BUFFER_BIT);
GL.glLoadIdentity();
// not trivial
double [] ModelVievMatrixBeforeSpecificTransforms = new double[16];
double [] CurrentRotationTraslation = new double[16];
GLU.gluLookAt(ScrollValue[0], ScrollValue[1], ScrollValue[2],
ScrollValue[3], ScrollValue[4], ScrollValue[5],
ScrollValue[6], ScrollValue[7], ScrollValue[8]);
GL.glTranslatef(0.0f, 0.0f, -30.0f);
GL.glRotatef(105, 0, 0, 1);
GL.glRotatef(70, 0, 1, 0);
GL.glRotatef(15, 1, 0, 0);
//save current ModelView Matrix values
//in ModelVievMatrixBeforeSpecificTransforms array
//ModelView Matrix ========>>>>>> ModelVievMatrixBeforeSpecificTransforms
GL.glGetDoublev(GL.GL_MODELVIEW_MATRIX, ModelVievMatrixBeforeSpecificTransforms);
//ModelView Matrix was saved, so
GL.glLoadIdentity(); // make it identity matrix
//make transformation in accordance to KeyCode
float delta;
if (intOptionC != 0)
{
delta = 5.0f * Math.Abs(intOptionC) / intOptionC; // signed 5
switch (Math.Abs(intOptionC))
{
case 1:
GL.glRotatef(delta, 1, 0, 0);
break;
case 2:
GL.glRotatef(delta, 0, 1, 0);
break;
case 3:
GL.glRotatef(delta, 0, 0, 1);
break;
case 4:
GL.glTranslatef(delta / 20, 0, 0);
break;
case 5:
GL.glTranslatef(0, delta / 20, 0);
break;
case 6:
GL.glTranslatef(0, 0, delta / 20);
break;
}
}
//as result - the ModelView Matrix now is pure representation
//of KeyCode transform and only it !!!
//save current ModelView Matrix values
//in CurrentRotationTraslation array
//ModelView Matrix =======>>>>>>> CurrentRotationTraslation
GL.glGetDoublev(GL.GL_MODELVIEW_MATRIX, CurrentRotationTraslation);
//The GL.glLoadMatrix function replaces the current matrix with
//the one specified in its argument.
//The current matrix is the
//projection matrix, modelview matrix, or texture matrix,
//determined by the current matrix mode (now is ModelView mode)
GL.glLoadMatrixd(AccumulatedRotationsTraslations); //Global Matrix
//The GL.glMultMatrix function multiplies the current matrix by
//the one specified in its argument.
//That is, if M is the current matrix and T is the matrix passed to
//GL.glMultMatrix, then M is replaced with M • T
GL.glMultMatrixd(CurrentRotationTraslation);
//save the matrix product in AccumulatedRotationsTraslations
GL.glGetDoublev(GL.GL_MODELVIEW_MATRIX, AccumulatedRotationsTraslations);
//replace ModelViev Matrix with stored ModelVievMatrixBeforeSpecificTransforms
GL.glLoadMatrixd(ModelVievMatrixBeforeSpecificTransforms);
//multiply it by KeyCode defined AccumulatedRotationsTraslations matrix
GL.glMultMatrixd(AccumulatedRotationsTraslations);
//REFLECTION//DrawAxes();
//REFLECTION b
intOptionB += 1; //for rotation
intOptionC += 10; //for rotation
// without REFLECTION was only DrawAll();
// now
//!!!!------sky box
GL.glPushMatrix();
GL.glPushAttrib(GL.GL_CURRENT_BIT);
GL.glColor4f(1.0f, 1.0f, 1.0f, 0.5f);
GL.glEnable(GL.GL_TEXTURE_2D);
GL.glDisable(GL.GL_BLEND);
GL.glRotatef(90, 1, 0, 0);
DrawTexturedCube();
GL.glPopAttrib();
GL.glPopMatrix();
/////
GL.glEnable(GL.GL_BLEND);
GL.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);
//only floor, draw only to STENCIL buffer
GL.glEnable(GL.GL_STENCIL_TEST);
GL.glStencilOp(GL.GL_REPLACE, GL.GL_REPLACE, GL.GL_REPLACE);
GL.glStencilFunc(GL.GL_ALWAYS, 1, 0xFFFFFFFF); // draw floor always
GL.glColorMask((byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE);
GL.glDisable(GL.GL_DEPTH_TEST);
DrawFloor3();
// restore regular settings
GL.glColorMask((byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE);
GL.glEnable(GL.GL_DEPTH_TEST);
// reflection is drawn only where STENCIL buffer value equal to 1
GL.glStencilFunc(GL.GL_EQUAL, 1, 0xFFFFFFFF);
GL.glStencilOp(GL.GL_KEEP, GL.GL_KEEP, GL.GL_KEEP);
GL.glEnable(GL.GL_STENCIL_TEST);
// draw reflected scene
GL.glPushMatrix();
GL.glScalef(1, 1, -1); //swap on Z axis
GL.glEnable(GL.GL_CULL_FACE);
GL.glCullFace(GL.GL_BACK);
DrawFigures();
GL.glCullFace(GL.GL_FRONT);
DrawFigures();
GL.glDisable(GL.GL_CULL_FACE);
GL.glPopMatrix();
// really draw floor
//( half-transparent ( see its color's alpha byte)))
// in order to see reflected objects
GL.glDepthMask((byte)GL.GL_FALSE);
DrawFloor3();
GL.glDepthMask((byte)GL.GL_TRUE);
// Disable GL.GL_STENCIL_TEST to show All, else it will be cut on GL.GL_STENCIL
GL.glDisable(GL.GL_STENCIL_TEST);
DrawFigures();
GL.glDisable(GL.GL_TEXTURE_2D);
GL.glFlush();
WGL.wglSwapBuffers(m_uint_DC);
}
public void Draw()
{
float delta = 0;
double[] ModelViewMatrixBeforeTransforms = new double[16];
double[] CurrentTraslation = new double[16];
if (m_uint_DC == 0 || m_uint_RC == 0)
{
return;
}
GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT | GL.GL_STENCIL_BUFFER_BIT);
GL.glLoadIdentity();
if (enableLookAtValue)
{
GLU.gluLookAt(LookAtNumberValue[0], LookAtNumberValue[1], LookAtNumberValue[2],
LookAtNumberValue[3], LookAtNumberValue[4], LookAtNumberValue[5],
LookAtNumberValue[6], LookAtNumberValue[7], LookAtNumberValue[8]);
}
GL.glTranslatef(0.0f, 0.0f, -20.0f);
if (enableRotate)
{
GL.glRotatef(viewAngle, 0.0f, 1.0f, 0.0f);
viewAngle -= 2f;
}
DrawRoom();
DrawOldAxes();
DrawLightSource();
GL.glGetDoublev(GL.GL_MODELVIEW_MATRIX, ModelViewMatrixBeforeTransforms);
GL.glLoadIdentity();
if (coordSysMoveDirection != 0)
{
delta = 5.0f * Math.Abs(coordSysMoveDirection) / coordSysMoveDirection;
switch (Math.Abs(coordSysMoveDirection))
{
case 1:
GL.glTranslatef(delta / 20, 0, 0);
break;
case 2:
GL.glTranslatef(0, delta / 20, 0);
break;
case 3:
GL.glTranslatef(0, 0, delta / 20);
break;
case 4:
GL.glRotatef(delta, 1, 0, 0);
break;
case 5:
GL.glRotatef(delta, 0, 1, 0);
break;
case 6:
GL.glRotatef(delta, 0, 0, 1);
break;
}
}
GL.glGetDoublev(GL.GL_MODELVIEW_MATRIX, CurrentTraslation);
GL.glLoadMatrixd(AccumulatedTraslations);
GL.glMultMatrixd(CurrentTraslation);
GL.glGetDoublev(GL.GL_MODELVIEW_MATRIX, AccumulatedTraslations);
GL.glLoadMatrixd(ModelViewMatrixBeforeTransforms);
GL.glMultMatrixd(AccumulatedTraslations);
DrawAxes();
GL.glCallList(handList);
if (enableReflection)
{
GL.glEnable(GL.GL_BLEND);
GL.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);
GL.glEnable(GL.GL_STENCIL_TEST);
GL.glStencilOp(GL.GL_REPLACE, GL.GL_REPLACE, GL.GL_REPLACE);
GL.glStencilFunc(GL.GL_ALWAYS, 1, 0xFFFFFFFF);
GL.glColorMask((byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE);
GL.glDisable(GL.GL_DEPTH_TEST);
//DrawFloor();
GL.glCallList(floorMainList);
GL.glColorMask((byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE);
GL.glEnable(GL.GL_DEPTH_TEST);
GL.glStencilFunc(GL.GL_EQUAL, 1, 0xFFFFFFFF);
GL.glStencilOp(GL.GL_KEEP, GL.GL_KEEP, GL.GL_KEEP);
GL.glEnable(GL.GL_STENCIL_TEST);
GL.glPushMatrix();
GL.glScalef(1, -1, 1);
GL.glEnable(GL.GL_CULL_FACE);
GL.glCullFace(GL.GL_BACK);
GL.glTranslated(0, 3, 0);
DrawFigures();
GL.glCullFace(GL.GL_FRONT);
DrawFigures();
GL.glDisable(GL.GL_CULL_FACE);
GL.glPopMatrix();
GL.glDepthMask((byte)GL.GL_FALSE);
//DrawFloor();
GL.glCallList(floorMainList);
GL.glDepthMask((byte)GL.GL_TRUE);
GL.glDisable(GL.GL_STENCIL_TEST);
}
GL.glFlush();
WGL.wglSwapBuffers(m_uint_DC);
}
public void Draw()
{
if (m_uint_DC == 0 || m_uint_RC == 0)
{
return;
}
GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT | GL.GL_STENCIL_BUFFER_BIT);
//TRIVIAL
GL.glViewport(0, 0, Width, Height);
GL.glLoadIdentity();
GL.glEnable(GL.GL_NORMALIZE);
GLU.gluLookAt(ScrollValue[0], ScrollValue[1], ScrollValue[2],
ScrollValue[3], ScrollValue[4], ScrollValue[5],
ScrollValue[6], ScrollValue[7], ScrollValue[8]);
pos[0] = light_position[0] = ScrollValue[9];
pos[1] = light_position[1] = ScrollValue[10];
pos[2] = light_position[2] = ScrollValue[11];
pos[3] = light_position[3] = 0;
light_position_reflected[0] = -ScrollValue[9];
light_position_reflected[1] = -ScrollValue[10];
light_position_reflected[2] = -ScrollValue[11];
light_position[3] = 0;
GL.glLightfv(GL.GL_LIGHT0, GL.GL_POSITION, light_position);
GL.glEnable(GL.GL_LIGHT0);
GL.glLightfv(GL.GL_LIGHT1, GL.GL_POSITION, light_position);
GL.glEnable(GL.GL_LIGHT1);
//beascender look angle
GL.glTranslatef(0.0f, -50.0f, -340.0f); //how far from the lake
GL.glTranslatef(0.0f, 1.0f, 0.0f); //height from the lake
GL.glRotatef(25, 1.0f, 0, 0); //look at lake angle
GL.glRotatef(xAngle, 1.0f, 0.0f, 0.0f);
if (checkBox)
{
GL.glRotatef((float)spirala * 0.018f, 0.0f, 1.0f, 0.0f);
GL.glRotatef((float)speed * 0.008f, 1.0f, 1.0f, 0.0f);
GL.glRotatef((float)speed * 0.008f, 0.0f, 1.0f, 1.0f);
GL.glRotatef((float)speed * -0.005f, 1.0f, 0.0f, 1.0f);
}
GL.glRotatef(yAngle, 0.0f, 1.0f, 0.0f);
GL.glRotatef(zAngle, 0.0f, 0.0f, 1.0f);
if (checkBox)
{
GL.glTranslatef(xShift, yShift + (float)-speed * 0.18f, zShift);
}
GL.glTranslatef(xShift, yShift, zShift);
/*
*
* Reflection drawing area start here
*
*/
GL.glPushMatrix();
GL.glEnable(GL.GL_BLEND);
GL.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);
//draw only to STENCIL buffer
GL.glEnable(GL.GL_STENCIL_TEST);
GL.glStencilOp(GL.GL_REPLACE, GL.GL_REPLACE, GL.GL_REPLACE);
GL.glStencilFunc(GL.GL_ALWAYS, 1, 0xFFFFFFFF);
GL.glColorMask((byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE);
GL.glDisable(GL.GL_DEPTH_TEST);
Drawlake();//Draw area when we want to see reflect
// restore regular seascendings
GL.glColorMask((byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE);
GL.glEnable(GL.GL_DEPTH_TEST);
// reflection is drawn only where STENCIL buffer value equal to 1
GL.glStencilFunc(GL.GL_EQUAL, 1, 0xFFFFFFFF);
GL.glStencilOp(GL.GL_KEEP, GL.GL_KEEP, GL.GL_KEEP);
/*
* draw reflected scene
*/
GL.glScalef(1, -1, 1); //swap axes down
GL.glPushMatrix();
DrawTexturedCube();
//reflected penguin
drawPenguin();
draw_sun();
draw_moon();
GL.glPopMatrix();
GL.glPopMatrix();
GL.glEnable(GL.GL_LIGHTING);
Drawlake();
GL.glDisable(GL.GL_LIGHTING);
GL.glStencilFunc(GL.GL_NOTEQUAL, 1, 0xFFFFFFFF);
GL.glStencilOp(GL.GL_KEEP, GL.GL_KEEP, GL.GL_KEEP);
GL.glDepthMask((byte)GL.GL_FALSE);
GL.glDepthMask((byte)GL.GL_TRUE);
drawFloorTextured();
draw_sun();
draw_moon();
GL.glDisable(GL.GL_STENCIL_TEST);
DrawTexturedCube(); //SKY BOX
/*
*
* paint main scene area - start here
*
*/
// drawaxe();
GL.glShadeModel(GL.GL_FLAT);
GL.glEnable(GL.GL_LIGHTING);
//Main Penguin
drawPenguin();
/////////
GL.glDisable(GL.GL_LIGHTING);
/*
*
* Draw shadows area - start here
*
*/
GL.glDisable(GL.GL_LIGHTING);
GL.glPushMatrix();
MakeShadowMatrix(ground); //sending fround matrix
GL.glMultMatrixf(cubeXform);
GL.glShadeModel(GL.GL_FLAT);
GL.glColor3d(0, 0, 0);//black
drawPenguinShade();
GL.glPopMatrix();
GL.glFlush();
WGL.wglSwapBuffers(m_uint_DC);
}
public void Draw()
{
GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT | GL.GL_STENCIL_BUFFER_BIT);
GL.glMatrixMode(GL.GL_MODELVIEW);
GL.glLoadIdentity();
GL.glTranslatef(0.0f, -1.5f, -6.0f);
GL.glRotatef(10, 1.0f, 0.0f, 0.0f);
GL.glRotatef(-tank.rotation, 0.0f, 1.0f, 0.0f);
GL.glRotatef(-tank.turretRotation, 0.0f, 1.0f, 0.0f);
GL.glTranslatef(-tank.posX, 0.0f, -tank.posZ);
//DrawAxes();
DrawAll();
//target
target.Drawself();
//LIGHT - before transforms
// hence it is in const position
GL.glPushMatrix();
GL.glEnable(GL.GL_LIGHTING);
GL.glEnable(GL.GL_LIGHT0);
GL.glTranslatef(0, 11, -35);
float[] ambient = { 0, 0, 0.3f, 1 };
if (tank.TankType == 2)
{
ambient[2] = 0.2f;
}
else
{
ambient[0] = 0.2f;
}
float[] diffuse = { 1, 1, 1, 1 };
float[] specular = { 0.5f, 0.5f, 0.5f, 1f };
float[] pos = { 0, 1f, -0.5f, 0 };
GL.glLightfv(GL.GL_LIGHT0, GL.GL_AMBIENT, ambient);
GL.glLightfv(GL.GL_LIGHT0, GL.GL_DIFFUSE, diffuse);
GL.glLightfv(GL.GL_LIGHT0, GL.GL_SPECULAR, specular);
GL.glLightfv(GL.GL_LIGHT0, GL.GL_POSITION, pos);
GL.glColor3f(1, 1, 0);
GL.glDisable(GL.GL_LIGHTING);
GLU.gluSphere(obj, 1, 12, 12); //SUN
GL.glEnable(GL.GL_LIGHTING);
GL.glPopMatrix();
if (!stelthmode)
{
GL.glEnable(GL.GL_BLEND);
GL.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);
GL.glEnable(GL.GL_STENCIL_TEST);
GL.glStencilOp(GL.GL_REPLACE, GL.GL_REPLACE, GL.GL_REPLACE);
GL.glStencilFunc(GL.GL_ALWAYS, 1, 0xFFFFFFFF); // draw floor always
GL.glColorMask((byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE);
GL.glDisable(GL.GL_DEPTH_TEST);
DrawMirror(false);
// restore regular settings
GL.glColorMask((byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE);
GL.glEnable(GL.GL_DEPTH_TEST);
// reflection is drawn only where STENCIL buffer value equal to 1
GL.glStencilFunc(GL.GL_EQUAL, 1, 0xFFFFFFFF);
GL.glStencilOp(GL.GL_KEEP, GL.GL_KEEP, GL.GL_KEEP);
GL.glEnable(GL.GL_STENCIL_TEST);
// draw reflected scene
GL.glPushMatrix();
GL.glScalef(-1, 1, 1); //swap on Z axis
GL.glEnable(GL.GL_CULL_FACE);
GL.glCullFace(GL.GL_BACK);
tank.drawSelf();
DrawBullets();
GL.glCullFace(GL.GL_FRONT);
tank.drawSelf();
DrawBullets();
GL.glDisable(GL.GL_CULL_FACE);
GL.glPopMatrix();
GL.glDepthMask((byte)GL.GL_FALSE);
DrawMirror(false);
GL.glDepthMask((byte)GL.GL_TRUE);
// Disable GL.GL_STENCIL_TEST to show All, else it will be cut on GL.GL_STENCIL
GL.glDisable(GL.GL_STENCIL_TEST);
}
else
{
GL.glEnable(GL.GL_BLEND);
GL.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);
GL.glEnable(GL.GL_STENCIL_TEST);
GL.glStencilOp(GL.GL_REPLACE, GL.GL_REPLACE, GL.GL_REPLACE);
GL.glStencilFunc(GL.GL_ALWAYS, 1, 0xFFFFFFFF); // draw floor always
GL.glColorMask((byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE);
GL.glDisable(GL.GL_DEPTH_TEST);
DrawMirror(false);
// restore regular settings
GL.glColorMask((byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE);
GL.glEnable(GL.GL_DEPTH_TEST);
// reflection is drawn only where STENCIL buffer value equal to 1
GL.glStencilFunc(GL.GL_EQUAL, 1, 0xFFFFFFFF);
GL.glStencilOp(GL.GL_KEEP, GL.GL_KEEP, GL.GL_KEEP);
GL.glEnable(GL.GL_STENCIL_TEST);
// draw reflected scene
GL.glPushMatrix();
GL.glScalef(-1, 1, 1); //swap on Z axis
GL.glEnable(GL.GL_CULL_FACE);
GL.glCullFace(GL.GL_BACK);
DrawBullets();
GL.glCullFace(GL.GL_FRONT);
DrawBullets();
GL.glDisable(GL.GL_CULL_FACE);
GL.glPopMatrix();
GL.glDepthMask((byte)GL.GL_FALSE);
DrawMirror(false);
GL.glDepthMask((byte)GL.GL_TRUE);
// Disable GL.GL_STENCIL_TEST to show All, else it will be cut on GL.GL_STENCIL
GL.glDisable(GL.GL_STENCIL_TEST);
}
if (!stelthmode)
{
tank.drawSelf();
}
else
{
tank.drawstelth();
}
DrawMirror(true);
DrawBullets();
//REFLECTION e
update();
WGL.wglSwapBuffers(m_uint_DC);
}
void DrawMirrors()
{
//only wall, draw only to STENCIL buffer
GL.glEnable(GL.GL_BLEND);
GL.glEnable(GL.GL_STENCIL_TEST);
GL.glStencilOp(GL.GL_REPLACE, GL.GL_REPLACE, GL.GL_REPLACE); // change stencil according to the object color
GL.glStencilFunc(GL.GL_ALWAYS, 1, 0xFFFFFFFF); // draw wall always
GL.glColorMask((byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE);
GL.glDisable(GL.GL_DEPTH_TEST);
// add mirrors for STENCIL buffer
backMirrorSurface.Draw(backMinusArray);
rightMirrorSurface.Draw(rightMinusArray);
leftMirrorSurface.Draw(leftMinusArray);
// restore regular settings
GL.glColorMask((byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE);
GL.glEnable(GL.GL_DEPTH_TEST);
// reflection is drawn only where STENCIL buffer value equal to 1
GL.glStencilFunc(GL.GL_EQUAL, 1, 0xFFFFFFFF);
GL.glStencilOp(GL.GL_KEEP, GL.GL_KEEP, GL.GL_KEEP); // keep object origenal color
GL.glEnable(GL.GL_STENCIL_TEST);
// draw reflected scene for back mirror
GL.glPushMatrix();
GL.glScalef(1, 1, -1); //swap on Z axis
GL.glTranslated(0, 0, mirrorWidth);
rubiksCube.Draw();
GL.glPopMatrix();
// draw reflected left mirror scene for right mirror scene
GL.glPushMatrix();
//GL.glScalef(-1, 1, 1); //swap on Z axis
GL.glTranslated(mirrorWidth * 2, 0, 0);
rubiksCube.Draw();
GL.glPopMatrix();
// draw reflected scene for right mirror
GL.glPushMatrix();
GL.glScalef(-1, 1, 1); //swap on X axis
GL.glTranslated(-mirrorWidth, 0, 0);
leftMirrorSurface.Draw(leftMinusArray);
rubiksCube.Draw();
GL.glPopMatrix();
// draw reflected right mirror scene for left mirror scene
GL.glPushMatrix();
//GL.glScalef(-1, 1, 1); //swap on Z axis
GL.glTranslated(-mirrorWidth * 2, 0, 0);
rubiksCube.Draw();
GL.glPopMatrix();
// draw reflected scene for left mirror
GL.glPushMatrix();
GL.glScalef(-1, 1, 1); //swap on X axis
GL.glTranslated(mirrorWidth, 0, 0);
rightMirrorSurface.Draw(rightMinusArray);
rubiksCube.Draw();
GL.glPopMatrix();
// really draw wall
//( half-transparent ( see its color's alpha byte)))
// in order to see reflected objects
GL.glDepthMask((byte)GL.GL_FALSE);
backMirrorSurface.Draw(backMinusArray);
Console.WriteLine((((-1.0 / 15) * (-90 - rightMirrorSurface.AngleY))));
Console.WriteLine(rightMirrorSurface.AngleY);
if (ScrollValue[1] < (3 + 5 * ((-1.0 / 15) * (-90 - rightMirrorSurface.AngleY))) && ScrollValue[1] > -(3 + 5 * ((-1.0 / 15) * (-90 - rightMirrorSurface.AngleY)))) // TODO: need to consider with --> cGL.rightMirrorSurface.AngleY >= -90
{
rightMirrorSurface.Draw(rightMinusArray);
leftMirrorSurface.Draw(leftMinusArray);
}
else if (ScrollValue[1] < (3 + 5 * ((-1.0 / 15) * (-90 - rightMirrorSurface.AngleY))))
{
leftMirrorSurface.DrawAsWall(leftWallColorArray, leftMinusArray);
rightMirrorSurface.Draw(rightMinusArray);
}
else
{
rightMirrorSurface.DrawAsWall(rightWallColorArray, rightMinusArray);
leftMirrorSurface.Draw(leftMinusArray);
}
GL.glDepthMask((byte)GL.GL_TRUE);
// Disable GL.GL_STENCIL_TEST to show All, else it will be cut on GL.GL_STENCIL
GL.glDisable(GL.GL_STENCIL_TEST);
// GL.glEnable(GL.GL_DEPTH_TEST);
//GL.glDisable(GL.GL_DEPTH_TEST);
//GL.glClear(GL.GL_DEPTH_BUFFER_BIT);
//GL.glDepthFunc(GL.GL_LESS);
//GL.glDepthFunc(GL.GL_GREATER);
// GL.glDisable(GL.GL_BLEND);
}
public void Draw()
{
//Shadows
pos[0] = 0;//ScrollValue[9];
pos[1] = ScrollValue[8];
pos[2] = ScrollValue[7];
pos[3] = ScrollValue[9];
if (m_uint_DC == 0 || m_uint_RC == 0)
{
return;
}
GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
GL.glLoadIdentity();
// not trivial
double[] ModelVievMatrixBeforeSpecificTransforms = new double[16];
double[] CurrentRotationTraslation = new double[16];
GLU.gluLookAt(ScrollValue[0], ScrollValue[1], ScrollValue[2],
ScrollValue[3], ScrollValue[4], ScrollValue[5],
ScrollValue[6], ScrollValue[7], ScrollValue[8]);
GL.glTranslatef(0.0f, 0.0f, -1.0f);
if (!bPerspective)
{
GL.glTranslatef(0.0f, 0.0f, 8.0f);
}
//3D model b3
GL.glTranslatef(0.0f, -5.0f, -15.0f);
GL.glRotated(180, 0, 1, 0);
//3D model e
//save current ModelView Matrix values
//in ModelVievMatrixBeforeSpecificTransforms array
//ModelView Matrix ========>>>>>> ModelVievMatrixBeforeSpecificTransforms
GL.glGetDoublev(GL.GL_MODELVIEW_MATRIX, ModelVievMatrixBeforeSpecificTransforms);
//ModelView Matrix was saved, so
// GL.glLoadIdentity(); // make it identity matrix
GL.glLoadIdentity(); // make it identity matrix
//make transformation in accordance to KeyCode
float delta;
if (intOptionC != 0)
{
delta = 5.0f * Math.Abs(intOptionC) / intOptionC; // signed 5
switch (Math.Abs(intOptionC))
{
case 1:
GL.glRotatef(delta, 1, 0, 0);
break;
case 2:
GL.glRotatef(delta, 0, 1, 0);
break;
case 3:
GL.glRotatef(delta, 0, 0, 1);
break;
case 4:
GL.glTranslatef(delta / 20, 0, 0);
break;
case 5:
GL.glTranslatef(0, delta / 20, 0);
break;
case 6:
GL.glTranslatef(0, 0, delta / 20);
break;
}
}
//as result - the ModelView Matrix now is pure representation
//of KeyCode transform and only it !!!
//save current ModelView Matrix values
//in CurrentRotationTraslation array
//ModelView Matrix =======>>>>>>> CurrentRotationTraslation
GL.glGetDoublev(GL.GL_MODELVIEW_MATRIX, CurrentRotationTraslation);
//The GL.glLoadMatrix function replaces the current matrix with
//the one specified in its argument.
//The current matrix is the
//projection matrix, modelview matrix, or texture matrix,
//determined by the current matrix mode (now is ModelView mode)
GL.glLoadMatrixd(AccumulatedRotationsTraslations); //Global Matrix
//The GL.glMultMatrix function multiplies the current matrix by
//the one specified in its argument.
//That is, if M is the current matrix and T is the matrix passed to
//GL.glMultMatrix, then M is replaced with M • T
GL.glMultMatrixd(CurrentRotationTraslation);
//save the matrix product in AccumulatedRotationsTraslations
GL.glGetDoublev(GL.GL_MODELVIEW_MATRIX, AccumulatedRotationsTraslations);
//replace ModelViev Matrix with stored ModelVievMatrixBeforeSpecificTransforms
GL.glLoadMatrixd(ModelVievMatrixBeforeSpecificTransforms);
//multiply it by KeyCode defined AccumulatedRotationsTraslations matrix
GL.glMultMatrixd(AccumulatedRotationsTraslations);
GL.glEnable(GL.GL_TEXTURE_2D);
if (!rotate)
{
GL.glRotatef(0, 0, 20, 0);
GL.glDepthRange(1, 1);////////if the zebra behind the cube, change to (1,1)
GL.glPushMatrix();
DrawTexturedCube();
GL.glPopMatrix();
}
else
{
GL.glRotatef(0, 0, 20, 0);
GL.glDepthRange(1, 1);
GL.glPushMatrix();
angle -= 0.1f;
GL.glRotatef(angle, 0, 2, 0);
DrawTexturedCube();
GL.glPopMatrix();
}
GL.glRotated(100, 0, 90, 0);
GL.glScaled(0.05, 0.05, 0.05);
GL.glRotated(-90, 180, 0, 0);
GL.glScaled(30, 30, 30);
DrawFigures();
GL.glEnable(GL.GL_BLEND);
GL.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);
//only floor, draw only to STENCIL buffer
GL.glEnable(GL.GL_STENCIL_TEST);
GL.glStencilOp(GL.GL_REPLACE, GL.GL_REPLACE, GL.GL_REPLACE);
GL.glStencilFunc(GL.GL_ALWAYS, 1, 0xFFFFFFFF); // draw floor always
GL.glColorMask((byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE, (byte)GL.GL_FALSE);
GL.glDisable(GL.GL_DEPTH_TEST);
// restore regular settings
GL.glColorMask((byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE, (byte)GL.GL_TRUE);
GL.glEnable(GL.GL_DEPTH_TEST);
GL.glEnable(GL.GL_STENCIL_TEST);
// draw reflected scene
GL.glPushMatrix();
GL.glScalef(1, 1, -1); //swap on Z axis
GL.glEnable(GL.GL_CULL_FACE);
GL.glCullFace(GL.GL_BACK);
DrawFigures();
GL.glCullFace(GL.GL_FRONT);
DrawFigures();
GL.glDisable(GL.GL_CULL_FACE);
GL.glPopMatrix();
// really draw floor
//( half-transparent ( see its color's alpha byte)))
// in order to see reflected objects
GL.glDepthMask((byte)GL.GL_FALSE);
DrawFloor();
GL.glDepthMask((byte)GL.GL_TRUE);
// Disable GL.GL_STENCIL_TEST to show All, else it will be cut on GL.GL_STENCIL
GL.glDisable(GL.GL_STENCIL_TEST);
DrawFigures();
//REFLECTION e
GL.glFlush();
WGL.wglSwapBuffers(m_uint_DC);
}
