void Motion(void)
{
rot += 3.0f;
if (rot >= 360.0f) rot -= 360.0f;
UpdateModelView();
Redraw();
}
/* ARGSUSED1 */
void Button(int button, int state, int x, int y)
{
switch (button) {
case GLUT_LEFT_BUTTON:
if (state == GLUT_DOWN) {
rot -= 15.0f;
UpdateModelView();
Redraw();
}
break;
case GLUT_RIGHT_BUTTON:
if (state == GLUT_DOWN) {
rot += 15.0f;
UpdateModelView();
Redraw();
}
break;
}
}
void InitMatrices(void)
{
/* Calculate projection matrix */
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
gluPerspective(45.0f, 1.0f, 1.0f, 100.0f);
/* Retrieve the matrix */
glGetFloatv(GL_PROJECTION_MATRIX, Projection);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
UpdateModelView();
}
bool Shadows::Render()
{
/* Input - timer and fps graph */
timer.Update();
float dt = timer.GetDeltaTime();
pFPSGraph->Input(1.0f / dt, timer.GetTime());
/* User input */
if (KeyPressed(KEY_SPACE))
{
iCurrentGroup = (iCurrentGroup + 1) % (int)GROUPS_COUNT;
}
if (KeyPressed(KEY_ENTER))
{
eDisplayMode = (eDisplayMode + 1) % E_DISPLAY_MODES;
}
if (KeyPressing(KEY_LEFT))
{
if ((fShadowExtent -= dt * 300.0f) < fMinShadowExtent)
fShadowExtent = fMinShadowExtent;
}
if (KeyPressing(KEY_RIGHT))
{
if ((fShadowExtent += dt * 300.0f) > fMaxShadowExtent)
fShadowExtent = fMaxShadowExtent;
}
if (KeyPressed(KEY_8))
{
bUseDoubleStencil = !bUseDoubleStencil;
}
if (KeyPressed(KEY_9))
{
bLightMove = !bLightMove;
}
if (KeyPressed(KEY_0))
{
bWireframe = !bWireframe;
}
if (KeyPressing(KEY_UP))
{
if ((fDistance -= dt * 150.0f) < fMinDistance)
fDistance = fMinDistance;
}
if (KeyPressing(KEY_DOWN))
{
if ((fDistance += dt * 150.0f) > fMaxDistance)
fDistance = fMaxDistance;
}
if (ScrollUp())
{
if ((fDistance /= 1.05f) < fMinDistance)
fDistance = fMinDistance;
}
if (ScrollDown())
{
if ((fDistance *= 1.05f) > fMaxDistance)
fDistance = fMaxDistance;
}
if (KeyPressed(KEY_R))
{
bFPSMode = !bFPSMode;
}
if (bFPSMode)
{
fpsCamera.Update(this, dt);
}
else
{
if (KeyPressing(KEY_Q))
{
light[iCurLight].fLightHeight += 50.0f * dt;
}
if (KeyPressing(KEY_E))
{
light[iCurLight].fLightHeight -= 50.0f * dt;
}
if (KeyPressing(KEY_W))
{
light[iCurLight].fLightRadius += dt;
}
if (KeyPressing(KEY_S))
{
light[iCurLight].fLightRadius -= dt;
}
}
if (KeyPressed(KEY_1))
{
if (iNumLights > 1)
iNumLights--;
}
if (KeyPressed(KEY_2))
{
if (iNumLights < MAX_LIGHTS)
iNumLights++;
}
// Update light positions
if (bLightMove)
{
for (unsigned int i = 0; i < MAX_LIGHTS; i++)
{
light[i].fLightAngle += dt;
light[i].UpdatePos(fMinDistance);
}
}
/* Update camera state */
y += 0.002f * (GetPointer()->GetMotionX() + GetPointer()->GetInertiaX());
x -= 0.002f * (GetPointer()->GetMotionY() + GetPointer()->GetInertiaY());
if (GetPointer()->TimeSinceLastInput() > 10.0f && bLightMove)
t += dt;
yRot = y + 20.0f * t;
xRot = x + 20.0f * sin(t);
/* Rendering */
// Clear color and depth buffer
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_DEPTH_TEST);
UpdateModelView();
glEnable(GL_CULL_FACE);
// Draw scene (including shadow if enabled)
RenderScene();
glDisable(GL_CULL_FACE);
// Render Light
for (unsigned int i = 0; i < iNumLights; i++)
{
DrawLightMarker(light[i].fPos);
}
//glDisable(GL_DEPTH_TEST);
glClear(GL_DEPTH_BUFFER_BIT);
DrawCoordinateFrame();
if (iShowInfo)
{
pFPSGraph->Draw();
glEnable(GL_BLEND);
pFont->Bind();
pFPSGraph->TextDraw(pFont.get());
// font parameters
float yellow[] = {1.0,1.0,0.0,1.0};
float red[] = {1.0,0.0,0.0,1.0};
float scale = 0.06f;
float mscale = 0.07f;
float x = -1.0f;
float y = 1.0f;
FontManager::HorzAlign horz = FontManager::LeftAlign;
FontManager::VertAlign vert = FontManager::TopAlign;
if (iShowInfo >= 2)
{
pFont->Render(x, y -= mscale, scale, red, horz, vert,
"[LEFT,RIGHT] Extent=%.1f", fShadowExtent);
char text[200];
CurrentGroupDesc(text);
pFont->Render(x, y -= mscale, scale, red, horz, vert,
text);
pFont->Render(x, y -= mscale, scale, red, horz, vert,
"[ENTER] Render Mode=%s", DisplayMoreStr[eDisplayMode]);
pFont->Render(x, y -= mscale, scale, red, horz, vert,
"[8] Double Stencil=%d", bUseDoubleStencil ? 1 : 0);
pFont->Render(x, y -= mscale, scale, red, horz, vert,
"[0] Wireframe=%d", bWireframe ? 1 : 0);
}
glDisable(GL_BLEND);
}
iFrameCounter++;
return true;
}
