/***** DISPLAY FUNCTION *****/
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1.0, 1.0, 1.0);
glShadeModel(GL_SMOOTH);
glLoadIdentity();
if (animate) {
animateRide();
}
/* camera view */
gluLookAt(eyeX, eyeY, eyeZ,
centerX, centerY, centerZ,
upX, upY, upZ);
/*
Camera Speed - extra credit - realistic in terms of gravity
u_new = u_current + (delta(t)) * sq(2g(h_max - h))/||dp/du||
h_max = max height anywhere on the rollercoaster + a tiny bit
h = current height
p = position. | dp/du | = length of position
kinetic energy + potential energy = constant
*/
renderSky();
renderGround();
renderSpline();
/* needed for double buffering*/
glutSwapBuffers();
}
void LensFlareSunDemo::render()
{
camera.applyCamera();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
renderSky();
glutSwapBuffers();
}
// renderStage0 - Render distant land at beginning of scene 0, after sky
void DistantLand::renderStage0()
{
DECLARE_MWBRIDGE
IDirect3DStateBlock9 *stateSaved;
UINT passes;
// Get Morrowind camera matrices
device->GetTransform(D3DTS_VIEW, &mwView);
device->GetTransform(D3DTS_PROJECTION, &mwProj);
// Set variables derived from current camera configuration
setView(&mwView);
adjustFog();
setupCommonEffect(&mwView, &mwProj);
// Select distant static set
selectDistantCell();
isRenderCached &= (Configuration.MGEFlags & USE_MENU_CACHING) && mwBridge->IsMenu();
if(!isRenderCached)
{
///LOG::logline("Sky prims: %d", recordSky.size());
if(isDistantCell())
{
// Save state block manually since we can change FVF/decl
device->CreateStateBlock(D3DSBT_ALL, &stateSaved);
effect->BeginPass(PASS_SETUP);
effect->EndPass();
// Shadow map early render
if(Configuration.MGEFlags & USE_SHADOWS)
{
if(mwBridge->CellHasWeather() && !mwBridge->IsMenu())
{
effectShadow->Begin(&passes, D3DXFX_DONOTSAVESTATE);
renderShadowMap();
effectShadow->End();
}
}
// Distant everything; bias the projection matrix such that
// distant land gets drawn behind anything Morrowind would draw
D3DXMATRIX distProj = mwProj;
distProj._33 += kDistantZBias;
effect->SetMatrix(ehProj, &distProj);
effect->Begin(&passes, D3DXFX_DONOTSAVESTATE);
if(!mwBridge->IsUnderwater(eyePos.z))
{
// Draw distant landscape
if(mwBridge->IsExterior())
{
effect->BeginPass(PASS_RENDERLAND);
renderDistantLand(effect, &mwView, &distProj);
effect->EndPass();
}
// Draw distant statics, with alpha dissolve as they pass the near view boundary
DWORD p = mwBridge->CellHasWeather() ? PASS_RENDERSTATICSEXTERIOR : PASS_RENDERSTATICSINTERIOR;
effect->SetFloat(ehDissolveRange, 7168.0);
effect->BeginPass(p);
cullDistantStatics(&mwView, &distProj);
renderDistantStatics();
effect->EndPass();
}
// Sky scattering and sky objects (should be drawn late as possible)
if((Configuration.MGEFlags & USE_ATM_SCATTER) && mwBridge->CellHasWeather())
{
effect->BeginPass(PASS_RENDERSKY);
renderSky();
effect->EndPass();
}
// Update reflection
if(mwBridge->CellHasWater())
renderWaterReflection(&mwView, &distProj);
// Update water simulation
if(Configuration.MGEFlags & DYNAMIC_RIPPLES)
simulateDynamicWaves();
effect->End();
// Reset matrices
effect->SetMatrix(ehView, &mwView);
effect->SetMatrix(ehProj, &mwProj);
// Save distant land only frame to texture
if(~Configuration.MGEFlags & NO_MW_MGE_BLEND)
texDistantBlend = PostShaders::borrowBuffer(1);
// Restore render state
stateSaved->Apply();
stateSaved->Release();
}
else
{
// Clear water reflection to avoid seeing previous cell environment reflected
// Must be done every frame to react to lighting changes
clearReflection();
// Update water simulation
if(Configuration.MGEFlags & DYNAMIC_RIPPLES)
{
// Save state block manually since we can change FVF/decl
device->CreateStateBlock(D3DSBT_ALL, &stateSaved);
effect->Begin(&passes, D3DXFX_DONOTSAVESTATE);
simulateDynamicWaves();
effect->End();
// Restore render state
stateSaved->Apply();
stateSaved->Release();
}
}
}
// Clear stray recordings
recordMW.clear();
recordSky.clear();
}
