void Application::Render() {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Set currently used shader program
glUseProgram(m_program_ID);
// Set world matrix
m_world = glm::mat4(1.0f);
// Set initial Model-View-Projection mx.
glm::mat4 MVP = m_cam.getViewProj() * m_world;
float gy8 = sqrtf(8.0f);
float gy12 = sqrtf(12.0f);
float down = gy12 - gy8;
// ====================================================================================================
// ============================== Moving along circular path ==========================================
// = According to http://gamedev.stackexchange.com/questions/9607/moving-an-object-in-a-circular-path =
glm::vec3 rotation(0.0f + sinf(m_rotation)*10.0f, 0.0f + cosf(m_rotation)*10.0f, 0.0f);
MVP = glm::translate(MVP, rotation);
// ====================================================================================================
// ============================== Scaling on Z-axis ===================================================
MVP = glm::scale(MVP, 1.0f, 1.0f, m_scaling);
// ====================================================================================================
// ============================== Rendering the 3 cylinders ===========================================
RenderCylinder(MVP, glm::vec3(0.0f, gy8, 0.0f));
RenderCylinder(MVP, glm::vec3(gy8, down, 0.0f));
RenderCylinder(MVP, glm::vec3(-down, down, 2.0f));
RenderCylinder(MVP, glm::vec3(-down, down, -2.0f));
// ====================================================================================================
// ============================== Undoing the translation =============================================
MVP = glm::translate(MVP, -rotation);
glUniformMatrix4fv(m_loc_MVP, 1, GL_FALSE, &( MVP[0][0] )); // Send to the VGA
// Draw axes
if( draw_z ) {
glBegin(GL_LINES);
glVertex3f(0.0f, 0.0f, 1000.0f);
glVertex3f(0.0f, 0.0f, -1000.0f);
glEnd();
}
if( draw_x ) {
glBegin(GL_LINES);
glVertex3f(1000.0f, 0.0f, 0.0f);
glVertex3f(-1000.0f, 0.0f, 0.0f);
glEnd();
}
if( draw_y ) {
glBegin(GL_LINES);
glVertex3f(0.0f, 1000.0f, 0.0f);
glVertex3f(0.0f, -1000.0f, 0.0f);
glEnd();
}
// We're not using the shader program anymore
glUseProgram(0);
}
void Indicator::RenderArrow(GraphicsDevice &GD, MatrixController &MC, const Vec3f &P1, const Vec3f &P2, const RGBColor &Color, bool ColorNormals)
{
Vec3f Diff = P2 - P1;
Vec3f Dir = Vec3f::Normalize(Diff);
float TotalHeight = Diff.Length();
float CylinderRadius = TotalHeight * 0.1f;
float ArrowRadius = CylinderRadius * 2.0f;
float ArrowHeight = ArrowRadius;
float CylinderHeight = TotalHeight - ArrowHeight;
RenderCylinder(GD, MC, CylinderRadius, P1, P1 + Dir * CylinderHeight, Color, false, ColorNormals);
RenderCylinder(GD, MC, ArrowRadius, P1 + Dir * CylinderHeight, P2, Color, true, ColorNormals);
}
void DrawWheelShape(NxShape* wheel)
{
if(wheel->is(NX_SHAPE_WHEEL) != NULL)
{
NxWheelShape* wheelShape = (NxWheelShape*)wheel;
glPushMatrix();
float glmat[16];
wheel->getGlobalPose().getColumnMajor44(glmat);
NxWheelShapeDesc wheelShapeDesc;
float r = wheelShape->getRadius();
float a = wheelShape->getSteerAngle();
glMultMatrixf(&(glmat[0]));
glTranslatef(-r/2,0,0);
glRotatef(90,0,1,0);
glRotatef(NxMath::radToDeg(a),0,1,0);
glScalef(r, r, r);
RenderCylinder();
glPopMatrix();
}
}
void DrawCapsule(NxShape* capsule, const NxVec3& color)
{
NxMat34 pose = capsule->getGlobalPose();
const NxReal & r = capsule->isCapsule()->getRadius();
const NxReal & h = capsule->isCapsule()->getHeight();
glPushMatrix();
SetupGLMatrix(pose.t, pose.M);
glPushMatrix();
glTranslatef(0.0f, h*0.5f, 0.0f);
glScalef(r,r,r);
RenderSphere();
glPopMatrix();
glPushMatrix();
glTranslatef(0.0f,-h*0.5f, 0.0f);
glScalef(r,r,r);
RenderSphere();
glPopMatrix();
glPushMatrix();
glTranslatef(0.0f,h*0.5f, 0.0f);
glScalef(r,h,r);
glRotatef(90.0f,1.0f,0.0f,0.0f);
RenderCylinder();
glPopMatrix();
glPopMatrix();
}
void DrawCapsule(float r, float h, const PR& pose)
{
/* glPushMatrix();
SetupGLMatrix(pose);
unsigned num = 12;
glRotatef(90.0f, 0.0f, 1.0f, 0.0f);
gluSphere(GetGLUQuadric(),
r,
num, num);
gluCylinder(GetGLUQuadric(), r, r, h, num, num);
glTranslatef(0.0f, 0.0f, h);
gluSphere(GetGLUQuadric(),
r,
num, num);
glPopMatrix();
return;*/
glPushMatrix();
SetupGLMatrix(pose);
glPushMatrix();
glTranslatef(0.0f, h*0.5f, 0.0f);
glScalef(r,r,r);
glutSolidSphere(1.0f, 12, 12); // doesn't include texcoords
glPopMatrix();
glPushMatrix();
glTranslatef(0.0f,-h*0.5f, 0.0f);
glScalef(r,r,r);
glutSolidSphere(1.0f, 12, 12); // doesn't include texcoords
glPopMatrix();
glPushMatrix();
glTranslatef(0.0f,h*0.5f, 0.0f);
glScalef(r,h,r);
glRotatef(90.0f,1.0f,0.0f,0.0f);
RenderCylinder();
glPopMatrix();
glPopMatrix();
}
PintCapsuleShapeRenderer(float r, float h)
{
glNewList(mDisplayListNum, GL_COMPILE);
glPushMatrix();
glTranslatef(0.0f, h*0.5f, 0.0f);
glScalef(r,r,r);
glutSolidSphere(1.0f, 12, 12); // doesn't include texcoords
glPopMatrix();
glPushMatrix();
glTranslatef(0.0f, -h*0.5f, 0.0f);
glScalef(r,r,r);
glutSolidSphere(1.0f, 12, 12); // doesn't include texcoords
glPopMatrix();
glPushMatrix();
glTranslatef(0.0f, h*0.5f, 0.0f);
glScalef(r,h,r);
glRotatef(90.0f,1.0f,0.0f,0.0f);
RenderCylinder();
glPopMatrix();
glEndList();
}
void DrawCapsule(const NxVec3& color, NxF32 r, NxF32 h)
{
glColor4f(color.x, color.y, color.z, 1.0f);
glPushMatrix();
glTranslatef(0.0f, h*0.5f, 0.0f);
glScalef(r,r,r);
RenderSphere();
glPopMatrix();
glPushMatrix();
glTranslatef(0.0f,-h*0.5f, 0.0f);
glScalef(r,r,r);
RenderSphere();
glPopMatrix();
glPushMatrix();
glTranslatef(0.0f,h*0.5f, 0.0f);
glScalef(r,h,r);
glRotatef(90.0f,1.0f,0.0f,0.0f);
RenderCylinder();
glPopMatrix();
}
void Indicator::RenderBox(GraphicsDevice &GD, MatrixController &MC, float Radius, const Rectangle3f &Rect, RGBColor Color)
{
RenderCylinder(GD, MC, Radius, Vec3f(Rect.Min.x, Rect.Min.y, Rect.Min.z), Vec3f(Rect.Max.x, Rect.Min.y, Rect.Min.z), Color);
RenderCylinder(GD, MC, Radius, Vec3f(Rect.Max.x, Rect.Min.y, Rect.Min.z), Vec3f(Rect.Max.x, Rect.Max.y, Rect.Min.z), Color);
RenderCylinder(GD, MC, Radius, Vec3f(Rect.Max.x, Rect.Max.y, Rect.Min.z), Vec3f(Rect.Min.x, Rect.Max.y, Rect.Min.z), Color);
RenderCylinder(GD, MC, Radius, Vec3f(Rect.Min.x, Rect.Max.y, Rect.Min.z), Vec3f(Rect.Min.x, Rect.Min.y, Rect.Min.z), Color);
RenderCylinder(GD, MC, Radius, Vec3f(Rect.Min.x, Rect.Min.y, Rect.Min.z), Vec3f(Rect.Min.x, Rect.Min.y, Rect.Max.z), Color);
RenderCylinder(GD, MC, Radius, Vec3f(Rect.Max.x, Rect.Min.y, Rect.Min.z), Vec3f(Rect.Max.x, Rect.Min.y, Rect.Max.z), Color);
RenderCylinder(GD, MC, Radius, Vec3f(Rect.Max.x, Rect.Max.y, Rect.Min.z), Vec3f(Rect.Max.x, Rect.Max.y, Rect.Max.z), Color);
RenderCylinder(GD, MC, Radius, Vec3f(Rect.Min.x, Rect.Max.y, Rect.Min.z), Vec3f(Rect.Min.x, Rect.Max.y, Rect.Max.z), Color);
RenderCylinder(GD, MC, Radius, Vec3f(Rect.Min.x, Rect.Min.y, Rect.Max.z), Vec3f(Rect.Max.x, Rect.Min.y, Rect.Max.z), Color);
RenderCylinder(GD, MC, Radius, Vec3f(Rect.Max.x, Rect.Min.y, Rect.Max.z), Vec3f(Rect.Max.x, Rect.Max.y, Rect.Max.z), Color);
RenderCylinder(GD, MC, Radius, Vec3f(Rect.Max.x, Rect.Max.y, Rect.Max.z), Vec3f(Rect.Min.x, Rect.Max.y, Rect.Max.z), Color);
RenderCylinder(GD, MC, Radius, Vec3f(Rect.Min.x, Rect.Max.y, Rect.Max.z), Vec3f(Rect.Min.x, Rect.Min.y, Rect.Max.z), Color);
Matrix4 Scale = Matrix4::Scaling(Rect.Dimensions());
Matrix4 Translate = Matrix4::Translation(Rect.Min);
MC.World = Scale * Translate;
LPDIRECT3DDEVICE9 Device = GD.CastD3D9().GetDevice();
D3DCOLOR D3DColor = RGBColor(90, 90, 90);
Device->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_BLENDFACTOR);
Device->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_INVBLENDFACTOR);
Device->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE);
Device->SetRenderState(D3DRS_BLENDFACTOR, D3DColor);
_Box.SetColor(Color);
_Box.Render();
Device->SetRenderState(D3DRS_ALPHABLENDENABLE, FALSE);
}
void Indicator::DrawCamera(GraphicsDevice &GD, MatrixController &MC, const Matrix4 &Perspective, float Radius, float Length, const Camera &C)
{
Vec3f Frustrum[8], Target;
GetCameraLine(Perspective, C, 0.0f, 0.0f, Frustrum[0], Frustrum[4]);
GetCameraLine(Perspective, C, 1.0f, 0.0f, Frustrum[1], Frustrum[5]);
GetCameraLine(Perspective, C, 1.0f, 1.0f, Frustrum[2], Frustrum[6]);
GetCameraLine(Perspective, C, 0.0f, 1.0f, Frustrum[3], Frustrum[7]); //get the 8 vertices of the perspective cube in world space
RenderCylinder(GD, MC, Radius, Frustrum[0], Frustrum[1], RGBColor::White);
RenderCylinder(GD, MC, Radius, Frustrum[1], Frustrum[2], RGBColor::White);
RenderCylinder(GD, MC, Radius, Frustrum[2], Frustrum[3], RGBColor::White);
RenderCylinder(GD, MC, Radius, Frustrum[3], Frustrum[0], RGBColor::White);
RenderCylinder(GD, MC, Radius, Frustrum[0], Frustrum[4], RGBColor::White);
RenderCylinder(GD, MC, Radius, Frustrum[1], Frustrum[5], RGBColor::White);
RenderCylinder(GD, MC, Radius, Frustrum[2], Frustrum[6], RGBColor::White);
RenderCylinder(GD, MC, Radius, Frustrum[3], Frustrum[7], RGBColor::White);
RenderCylinder(GD, MC, Radius, Frustrum[4], Frustrum[5], RGBColor::White);
RenderCylinder(GD, MC, Radius, Frustrum[5], Frustrum[6], RGBColor::White);
RenderCylinder(GD, MC, Radius, Frustrum[6], Frustrum[7], RGBColor::White);
RenderCylinder(GD, MC, Radius, Frustrum[7], Frustrum[4], RGBColor::White); //render the 12 line segments of the perspective cube in world space
RenderSphere(GD, MC, Radius * 2.0f, C.VecEye(), RGBColor::Blue); //render the camera eye vector
Target = C.VecEye() - C.VecLookDir() * Length;
RenderCylinder(GD, MC, Radius, C.VecEye(), Target, RGBColor::Red);
Target = C.VecEye() + C.VecUp() * Length;
RenderCylinder(GD, MC, Radius, C.VecEye(), Target, RGBColor::Green);
Target = C.VecEye() + C.VecRight() * Length;
RenderCylinder(GD, MC, Radius, C.VecEye(), Target, RGBColor::Yellow); //render the C.VecLookDir, C.VecUp, and C.VecLeft vectors
}
void Indicator::DrawCameraLine(GraphicsDevice &GD, MatrixController &MC, const Matrix4 &Perspective, float Radius, const RGBColor &Color, const Camera &C, float x, float y)
{
Vec3f P1Out, P2Out;
GetCameraLine(Perspective, C, x, y, P1Out, P2Out); //get the camera line
RenderCylinder(GD, MC, Radius, P1Out, P2Out, Color); //draw it
}