/**
* @brief PerspectiveProjection: Calculate perspective projection matrix
* @param left: left boundary
* @param right: right boundary
* @param bottom: bottom boundary
* @param top: top boundary
* @param n: n boundary
* @param f: f boundary
* @return 4X4 perspective projection matrix
*/
mat4 PerspectiveProjection(float l, float r, float b, float t, float n, float f)
{
mat4 frust = mat4::Zero();
frust(0, 0) = 2.0f * n / (r - l);
frust(1, 1) = 2.0f * n / (t - b);
frust(2, 3) = -2.0f * f * n / (f - n);
frust(2, 2) = -(f + n) / (f - n);
frust(3, 2) = -1.0f;
frust(0, 2) = (r + l) / (r - l);
frust(1, 2) = (t + b) / (t - b);
return frust;
}
void GuiObjectView::renderWorld( const RectI& updateRect )
{
if( !mModel )
return;
GFXTransformSaver _saveTransforms;
// Determine the camera position, and store off render state.
MatrixF modelview;
MatrixF mv;
Point3F cp;
modelview = GFX->getWorldMatrix();
mv = modelview;
mv.inverse();
mv.getColumn( 3, &cp );
RenderPassManager* renderPass = gClientSceneGraph->getDefaultRenderPass();
S32 time = Platform::getVirtualMilliseconds();
S32 dt = time - mLastRenderTime;
mLastRenderTime = time;
LIGHTMGR->unregisterAllLights();
LIGHTMGR->setSpecialLight( LightManager::slSunLightType, mLight );
GFX->setStateBlock( mDefaultGuiSB );
F32 left, right, top, bottom, nearPlane, farPlane;
bool isOrtho;
GFX->getFrustum( &left, &right, &bottom, &top, &nearPlane, &farPlane, &isOrtho );
Frustum frust( false, left, right, top, bottom, nearPlane, farPlane, MatrixF::Identity );
SceneRenderState state
(
gClientSceneGraph,
SPT_Diffuse,
SceneCameraState( GFX->getViewport(), frust, GFX->getWorldMatrix(), GFX->getProjectionMatrix() ),
renderPass,
false
);
// Set up our TS render state here.
TSRenderState rdata;
rdata.setSceneState( &state );
// We might have some forward lit materials
// so pass down a query to gather lights.
LightQuery query;
query.init( SphereF( Point3F::Zero, 1.0f ) );
rdata.setLightQuery( &query );
// Render primary model.
if( mModel )
{
if( mRunThread )
{
mModel->advanceTime( dt / 1000.f, mRunThread );
mModel->animate();
}
mModel->render( rdata );
}
// Render mounted model.
if( mMountedModel && mMountNode != -1 )
{
GFX->pushWorldMatrix();
GFX->multWorld( mModel->mNodeTransforms[ mMountNode ] );
GFX->multWorld( mMountTransform );
mMountedModel->render( rdata );
GFX->popWorldMatrix();
}
renderPass->renderPass( &state );
// Make sure to remove our fake sun.
LIGHTMGR->unregisterAllLights();
}
void GuiMaterialCtrl::onRender( Point2I offset, const RectI &updateRect )
{
Parent::onRender( offset, updateRect );
if ( !mMaterialInst )
return;
// Draw a quad with the material assigned
GFXVertexBufferHandle<GFXVertexPCT> verts( GFX, 4, GFXBufferTypeVolatile );
verts.lock();
F32 screenLeft = updateRect.point.x;
F32 screenRight = (updateRect.point.x + updateRect.extent.x);
F32 screenTop = updateRect.point.y;
F32 screenBottom = (updateRect.point.y + updateRect.extent.y);
const F32 fillConv = GFX->getFillConventionOffset();
verts[0].point.set( screenLeft - fillConv, screenTop - fillConv, 0.f );
verts[1].point.set( screenRight - fillConv, screenTop - fillConv, 0.f );
verts[2].point.set( screenLeft - fillConv, screenBottom - fillConv, 0.f );
verts[3].point.set( screenRight - fillConv, screenBottom - fillConv, 0.f );
verts[0].color = verts[1].color = verts[2].color = verts[3].color = ColorI( 255, 255, 255, 255 );
verts[0].texCoord.set( 0.0f, 0.0f );
verts[1].texCoord.set( 1.0f, 0.0f );
verts[2].texCoord.set( 0.0f, 1.0f );
verts[3].texCoord.set( 1.0f, 1.0f );
verts.unlock();
GFX->setVertexBuffer( verts );
MatrixSet matSet;
matSet.setWorld(GFX->getWorldMatrix());
matSet.setView(GFX->getViewMatrix());
matSet.setProjection(GFX->getProjectionMatrix());
MatrixF cameraMatrix( true );
F32 left, right, top, bottom, nearPlane, farPlane;
bool isOrtho;
GFX->getFrustum( &left, &right, &bottom, &top, &nearPlane, &farPlane, &isOrtho );
Frustum frust( isOrtho, left, right, top, bottom, nearPlane, farPlane, cameraMatrix );
SceneRenderState state
(
gClientSceneGraph,
SPT_Diffuse,
SceneCameraState( GFX->getViewport(), frust, GFX->getWorldMatrix(), GFX->getProjectionMatrix() ),
gClientSceneGraph->getDefaultRenderPass(),
false
);
SceneData sgData;
sgData.init( &state );
sgData.wireframe = false; // Don't wireframe this.
while( mMaterialInst->setupPass( &state, sgData ) )
{
mMaterialInst->setSceneInfo( &state, sgData );
mMaterialInst->setTransforms( matSet, &state );
GFX->setupGenericShaders();
GFX->drawPrimitive( GFXTriangleStrip, 0, 2 );
}
// Clean up
GFX->setShader( NULL );
GFX->setTexture( 0, NULL );
}
void ImposterCapture::begin( TSShapeInstance *shapeInst,
S32 dl,
S32 dim,
F32 radius,
const Point3F ¢er )
{
mShapeInstance = shapeInst;
mDl = dl;
mDim = dim;
mRadius = radius;
mCenter = center;
mBlackTex.set( mDim, mDim, GFXFormatR8G8B8A8, &GFXDefaultRenderTargetProfile, avar( "%s() - (line %d)", __FUNCTION__, __LINE__ ) );
mWhiteTex.set( mDim, mDim, GFXFormatR8G8B8A8, &GFXDefaultRenderTargetProfile, avar( "%s() - (line %d)", __FUNCTION__, __LINE__ ) );
mNormalTex.set( mDim, mDim, GFXFormatR8G8B8A8, &GFXDefaultRenderTargetProfile, avar( "%s() - (line %d)", __FUNCTION__, __LINE__ ) );
mDepthBuffer.set( mDim, mDim, GFXFormatD24S8, &GFXDefaultZTargetProfile, avar( "%s() - (line %d)", __FUNCTION__, __LINE__ ) );
// copy the black render target data into a bitmap
mBlackBmp = new GBitmap;
mBlackBmp->allocateBitmap(mDim, mDim, false, GFXFormatR8G8B8);
// copy the white target data into a bitmap
mWhiteBmp = new GBitmap;
mWhiteBmp->allocateBitmap(mDim, mDim, false, GFXFormatR8G8B8);
// Setup viewport and frustrum to do orthographic projection.
RectI viewport( 0, 0, mDim, mDim );
GFX->setViewport( viewport );
GFX->setOrtho( -mRadius, mRadius, -mRadius, mRadius, 1, 20.0f * mRadius );
// Position camera looking out the X axis.
MatrixF cameraMatrix( true );
cameraMatrix.setColumn( 0, Point3F( 0, 0, 1 ) );
cameraMatrix.setColumn( 1, Point3F( 1, 0, 0 ) );
cameraMatrix.setColumn( 2, Point3F( 0, 1, 0 ) );
// setup scene state required for TS mesh render...this is messy and inefficient;
// should have a mode where most of this is done just once (and then
// only the camera matrix changes between snapshots).
// note that we use getFrustum here, but we set up an ortho projection above.
// it doesn't seem like the scene state object pays attention to whether the projection is
// ortho or not. this could become a problem if some code downstream tries to
// reconstruct the projection matrix using the dimensions and doesn't
// realize it should be ortho. at the moment no code is doing that.
F32 left, right, top, bottom, nearPlane, farPlane;
bool isOrtho;
GFX->getFrustum( &left, &right, &bottom, &top, &nearPlane, &farPlane, &isOrtho );
Frustum frust( isOrtho, left, right, top, bottom, nearPlane, farPlane, cameraMatrix );
// Set up render pass.
mRenderPass = new RenderPassManager();
mRenderPass->assignName( "DiffuseRenderPass" );
mMeshRenderBin = new RenderMeshMgr();
mRenderPass->addManager( mMeshRenderBin );
// Set up scene state.
mState = new SceneRenderState(
gClientSceneGraph,
SPT_Diffuse,
SceneCameraState( viewport, frust, GFX->getWorldMatrix(),GFX->getProjectionMatrix() ),
mRenderPass,
false
);
// Set up our TS render state.
mRData.setSceneState( mState );
mRData.setCubemap( NULL );
mRData.setFadeOverride( 1.0f );
// set gfx up for render to texture
GFX->pushActiveRenderTarget();
mRenderTarget = GFX->allocRenderToTextureTarget();
}
void GuiMaterialPreview::renderWorld(const RectI &updateRect)
{
// nothing to render, punt
if ( !mModel && !mMountedModel )
return;
S32 time = Platform::getVirtualMilliseconds();
//S32 dt = time - lastRenderTime;
lastRenderTime = time;
F32 left, right, top, bottom, nearPlane, farPlane;
bool isOrtho;
GFX->getFrustum( &left, &right, &bottom, &top, &nearPlane, &farPlane, &isOrtho);
Frustum frust( isOrtho, left, right, bottom, top, nearPlane, farPlane, MatrixF::Identity );
FogData savedFogData = gClientSceneGraph->getFogData();
gClientSceneGraph->setFogData( FogData() ); // no fog in preview window
RenderPassManager* renderPass = gClientSceneGraph->getDefaultRenderPass();
SceneRenderState state
(
gClientSceneGraph,
SPT_Diffuse,
SceneCameraState( GFX->getViewport(), frust, GFX->getWorldMatrix(), GFX->getProjectionMatrix() ),
renderPass,
true
);
// Set up our TS render state here.
TSRenderState rdata;
rdata.setSceneState( &state );
// We might have some forward lit materials
// so pass down a query to gather lights.
LightQuery query;
query.init( SphereF( Point3F::Zero, 1.0f ) );
rdata.setLightQuery( &query );
// Set up pass transforms
renderPass->assignSharedXform(RenderPassManager::View, MatrixF::Identity);
renderPass->assignSharedXform(RenderPassManager::Projection, GFX->getProjectionMatrix());
LIGHTMGR->unregisterAllLights();
LIGHTMGR->setSpecialLight( LightManager::slSunLightType, mFakeSun );
if ( mModel )
mModel->render( rdata );
if ( mMountedModel )
{
// render a weapon
/*
MatrixF mat;
GFX->pushWorldMatrix();
GFX->multWorld( mat );
GFX->popWorldMatrix();
*/
}
renderPass->renderPass( &state );
gClientSceneGraph->setFogData( savedFogData ); // restore fog setting
// Make sure to remove our fake sun
LIGHTMGR->unregisterAllLights();
}
