void CubeReflector::updateFace( const ReflectParams ¶ms, U32 faceidx )
{
GFXDEBUGEVENT_SCOPE( CubeReflector_UpdateFace, ColorI::WHITE );
// store current matrices
GFXTransformSaver saver;
// set projection to 90 degrees vertical and horizontal
F32 left, right, top, bottom;
MathUtils::makeFrustum( &left, &right, &top, &bottom, M_HALFPI_F, 1.0f, mDesc->nearDist );
GFX->setFrustum( left, right, bottom, top, mDesc->nearDist, mDesc->farDist );
// We don't use a special clipping projection, but still need to initialize
// this for objects like SkyBox which will use it during a reflect pass.
gClientSceneGraph->setNonClipProjection( GFX->getProjectionMatrix() );
// Standard view that will be overridden below.
VectorF vLookatPt(0.0f, 0.0f, 0.0f), vUpVec(0.0f, 0.0f, 0.0f), vRight(0.0f, 0.0f, 0.0f);
switch( faceidx )
{
case 0 : // D3DCUBEMAP_FACE_POSITIVE_X:
vLookatPt = VectorF( 1.0f, 0.0f, 0.0f );
vUpVec = VectorF( 0.0f, 1.0f, 0.0f );
break;
case 1 : // D3DCUBEMAP_FACE_NEGATIVE_X:
vLookatPt = VectorF( -1.0f, 0.0f, 0.0f );
vUpVec = VectorF( 0.0f, 1.0f, 0.0f );
break;
case 2 : // D3DCUBEMAP_FACE_POSITIVE_Y:
vLookatPt = VectorF( 0.0f, 1.0f, 0.0f );
vUpVec = VectorF( 0.0f, 0.0f,-1.0f );
break;
case 3 : // D3DCUBEMAP_FACE_NEGATIVE_Y:
vLookatPt = VectorF( 0.0f, -1.0f, 0.0f );
vUpVec = VectorF( 0.0f, 0.0f, 1.0f );
break;
case 4 : // D3DCUBEMAP_FACE_POSITIVE_Z:
vLookatPt = VectorF( 0.0f, 0.0f, 1.0f );
vUpVec = VectorF( 0.0f, 1.0f, 0.0f );
break;
case 5: // D3DCUBEMAP_FACE_NEGATIVE_Z:
vLookatPt = VectorF( 0.0f, 0.0f, -1.0f );
vUpVec = VectorF( 0.0f, 1.0f, 0.0f );
break;
}
// create camera matrix
VectorF cross = mCross( vUpVec, vLookatPt );
cross.normalizeSafe();
MatrixF matView(true);
matView.setColumn( 0, cross );
matView.setColumn( 1, vLookatPt );
matView.setColumn( 2, vUpVec );
matView.setPosition( mObject->getPosition() );
matView.inverse();
GFX->setWorldMatrix(matView);
renderTarget->attachTexture( GFXTextureTarget::Color0, cubemap, faceidx );
GFX->setActiveRenderTarget( renderTarget );
GFX->clear( GFXClearStencil | GFXClearTarget | GFXClearZBuffer, gCanvasClearColor, 1.0f, 0 );
SceneRenderState reflectRenderState
(
gClientSceneGraph,
SPT_Reflect,
SceneCameraState::fromGFX()
);
reflectRenderState.getMaterialDelegate().bind( REFLECTMGR, &ReflectionManager::getReflectionMaterial );
reflectRenderState.setDiffuseCameraTransform( params.query->cameraMatrix );
reflectRenderState.disableAdvancedLightingBins(true);
// render scene
LIGHTMGR->registerGlobalLights( &reflectRenderState.getCullingFrustum(), false );
gClientSceneGraph->renderSceneNoLights( &reflectRenderState, mDesc->objectTypeMask );
LIGHTMGR->unregisterAllLights();
// Clean up.
renderTarget->resolve();
}
