362 Engine/source/environment/skyBox.cpp
View file
@@ -60,8 +60,12 @@ SkyBox::SkyBox()

mIsVBDirty = false;
mDrawBottom = true;
mDrawTop = true;
mUseLighting = false;
mExposure = 1.0;
mPrimCount = 0;
mFogBandHeight = 0;
mFogBandWidth = 0.1f;

mMatrixSet = reinterpret_cast<MatrixSet *>(dMalloc_aligned(sizeof(MatrixSet), 16));
constructInPlace(mMatrixSet);
@@ -121,9 +125,24 @@ void SkyBox::initPersistFields()
addField( "drawBottom", TypeBool, Offset( mDrawBottom, SkyBox ),
"If false the bottom of the skybox is not rendered." );

addField( "drawTop", TypeBool, Offset( mDrawTop, SkyBox ),
"If false the top of the skybox is not rendered." );

addField( "useLighting", TypeBool, Offset( mUseLighting, SkyBox ),
"If false the top of the skybox is not rendered." );

addField( "Exposure", TypeF32, Offset( mExposure, SkyBox ),
"The light exposure for lighting the skybox." );

addField( "SkyboxColor", TypeColorF, Offset( mSkyboxColor, SkyBox ),
"Modulates the skybox color. This will blend with the ambient light color ");

addField( "fogBandHeight", TypeF32, Offset( mFogBandHeight, SkyBox ),
"The height (0-1) of the fog band from the horizon to the top of the SkyBox." );

addField( "fogBandWidth", TypeF32, Offset( mFogBandWidth, SkyBox ),
"The width of the fog band (0-1), added on top of the fog height." );

endGroup( "Sky Box" );

Parent::initPersistFields();
@@ -141,7 +160,12 @@ U32 SkyBox::packUpdate( NetConnection *conn, U32 mask, BitStream *stream )

stream->write( mMatName );
stream->writeFlag( mDrawBottom );
stream->writeFlag( mDrawTop );
stream->writeFlag( mUseLighting );
stream->write( mExposure );
stream->write( mSkyboxColor );
stream->write( mFogBandHeight );
stream->write( mFogBandWidth );

return retMask;
}
@@ -159,19 +183,45 @@ void SkyBox::unpackUpdate( NetConnection *conn, BitStream *stream )
}

bool drawBottom = stream->readFlag();
bool drawTop = stream->readFlag();

bool useLighting = stream->readFlag();

F32 exposure = 0;
stream->read( &exposure );

ColorF skyboxColor;
stream->read( &skyboxColor );

F32 bandHeight = 0;
stream->read( &bandHeight );
F32 bandWidth = 0;
stream->read( &bandWidth );

// If this flag has changed
// we need to update the vertex buffer.
if ( drawBottom != mDrawBottom ||
bandHeight != mFogBandHeight )
bandHeight != mFogBandHeight ||
bandWidth != mFogBandWidth ||
drawTop != mDrawTop ||
exposure != mExposure ||
skyboxColor != mSkyboxColor )
{
mDrawBottom = drawBottom;
mDrawTop = drawTop;
mFogBandHeight = bandHeight;
mFogBandWidth = bandWidth;
mExposure = exposure;
mSkyboxColor = skyboxColor;
mIsVBDirty = true;
_initRender();
}

if ( useLighting != mUseLighting)
{
mUseLighting = useLighting;
_updateMaterial();
}
}

void SkyBox::prepRenderImage( SceneRenderState *state )
@@ -191,7 +241,7 @@ void SkyBox::prepRenderImage( SceneRenderState *state )
ri->renderDelegate.bind( this, &SkyBox::_renderObject );
ri->type = RenderPassManager::RIT_Sky;
ri->defaultKey = 10;
ri->defaultKey2 = 0;
ri->defaultKey2 = 2;
state->getRenderPass()->addInst( ri );
}

@@ -209,6 +259,10 @@ void SkyBox::_renderObject( ObjectRenderInst *ri, SceneRenderState *state, BaseM
sgData.init( state );
sgData.objTrans = &worldMat;

// fixes ambient
sgData.ambientLightColor *= mSkyboxColor;
sgData.ambientLightColor *= mExposure;

mMatrixSet->restoreSceneViewProjection();
mMatrixSet->setWorld( worldMat );
if ( state->isReflectPass() )
@@ -244,7 +298,7 @@ void SkyBox::_renderObject( ObjectRenderInst *ri, SceneRenderState *state, BaseM
mFogBandMatInst->setSceneInfo( state, sgData );

GFX->setVertexBuffer( mFogBandVB );
GFX->drawPrimitive( GFXTriangleList, 0, 16 );
GFX->drawPrimitive( GFXTriangleList, 0, 96 );
}
}
}
@@ -256,7 +310,10 @@ void SkyBox::_initRender()
U32 vertCount = 36;

if ( !mDrawBottom )
vertCount = 30;
vertCount = vertCount - 6;

if (!mDrawTop)
vertCount = vertCount - 6;

mPrimCount = vertCount / 3;

@@ -332,42 +389,63 @@ void SkyBox::_initRender()
tmpVerts[22].texCoord.set( 1.0f, 1.0f );
tmpVerts[23].texCoord.set( 0, 1.0f );

tmpVerts[24].point.set( -1, -1, 1 );
tmpVerts[25].point.set( -1, 1, 1 );
tmpVerts[26].point.set( 1, 1, 1 );

tmpVerts[24].texCoord.set( 0, 0 );
tmpVerts[25].texCoord.set( 1.0f, 0 );
tmpVerts[26].texCoord.set( 1.0f, 1.0f );

tmpVerts[27].point.set( -1, -1, 1 );
tmpVerts[28].point.set( 1, 1, 1 );
tmpVerts[29].point.set( 1, -1, 1 );

tmpVerts[27].texCoord.set( 0, 0 );
tmpVerts[28].texCoord.set( 1.0f, 1.0f );
tmpVerts[29].texCoord.set( 0, 1.0f );

// Only set up these
// vertices if the SkyBox
// is set to render the bottom face.
if ( mDrawBottom )
if ( mDrawTop )
{
tmpVerts[30].point.set( 1, 1, -1 );
tmpVerts[31].point.set( -1, 1, -1 );
tmpVerts[32].point.set( -1, -1, -1 );
// rendering the top face
tmpVerts[24].point.set( -1, -1, 1 );
tmpVerts[25].point.set( -1, 1, 1 );
tmpVerts[26].point.set( 1, 1, 1 );

tmpVerts[24].texCoord.set( 0, 0 );
tmpVerts[25].texCoord.set( 1.0f, 0 );
tmpVerts[26].texCoord.set( 1.0f, 1.0f );

tmpVerts[27].point.set( -1, -1, 1 );
tmpVerts[28].point.set( 1, 1, 1 );
tmpVerts[29].point.set( 1, -1, 1 );

tmpVerts[27].texCoord.set( 0, 0 );
tmpVerts[28].texCoord.set( 1.0f, 1.0f );
tmpVerts[29].texCoord.set( 0, 1.0f );

if ( mDrawBottom ) {
// we are rendering top and bottom faces
tmpVerts[30].point.set( 1, 1, -1 );
tmpVerts[31].point.set( -1, 1, -1 );
tmpVerts[32].point.set( -1, -1, -1 );

tmpVerts[30].texCoord.set( 1.0f, 1.0f );
tmpVerts[31].texCoord.set( 1.0f, 0 );
tmpVerts[32].texCoord.set( 0, 0 );

tmpVerts[33].point.set( 1, -1, -1 );
tmpVerts[34].point.set( 1, 1, -1 );
tmpVerts[35].point.set( -1, -1, -1 );

tmpVerts[33].texCoord.set( 0, 1.0f );
tmpVerts[34].texCoord.set( 1.0f, 1.0f );
tmpVerts[35].texCoord.set( 0, 0 );
}
}

// Only set up these vertices if the SkyBox
// is set to render the bottom face and not the top
if ( mDrawBottom && !mDrawTop) {
tmpVerts[24].point.set( 1, 1, -1 );
tmpVerts[25].point.set( -1, 1, -1 );
tmpVerts[26].point.set( -1, -1, -1 );

tmpVerts[30].texCoord.set( 1.0f, 1.0f );
tmpVerts[31].texCoord.set( 1.0f, 0 );
tmpVerts[32].texCoord.set( 0, 0 );
tmpVerts[24].texCoord.set( 1.0f, 1.0f );
tmpVerts[25].texCoord.set( 1.0f, 0 );
tmpVerts[26].texCoord.set( 0, 0 );

tmpVerts[33].point.set( 1, -1, -1 );
tmpVerts[34].point.set( 1, 1, -1 );
tmpVerts[35].point.set( -1, -1, -1 );
tmpVerts[27].point.set( 1, -1, -1 );
tmpVerts[28].point.set( 1, 1, -1 );
tmpVerts[29].point.set( -1, -1, -1 );

tmpVerts[33].texCoord.set( 0, 1.0f );
tmpVerts[34].texCoord.set( 1.0f, 1.0f );
tmpVerts[35].texCoord.set( 0, 0 );
tmpVerts[27].texCoord.set( 0, 1.0f );
tmpVerts[28].texCoord.set( 1.0f, 1.0f );
tmpVerts[29].texCoord.set( 0, 0 );
}

VectorF tmp( 0, 0, 0 );
@@ -414,147 +492,84 @@ void SkyBox::_initRender()
delete [] tmpVerts;

if ( mFogBandVB.isNull() )
mFogBandVB.set( GFX, 48, GFXBufferTypeStatic );
mFogBandVB.set( GFX, 288, GFXBufferTypeStatic );
//mFogBandVB.set( GFX, 192, GFXBufferTypeStatic );
//mFogBandVB.set( GFX, 48, GFXBufferTypeStatic );

GFXVertexPC *bandVertPtr = mFogBandVB.lock();
if(!bandVertPtr) return;

// Grab the fog color.
ColorI fogColor( mLastFogColor.red * 255, mLastFogColor.green * 255, mLastFogColor.blue * 255 );
ColorI fogColorAlpha( mLastFogColor.red * 255, mLastFogColor.green * 255, mLastFogColor.blue * 255, 0 );

// Upper portion of band geometry.
{
bandVertPtr[0].point.set( -1, -1, mFogBandHeight );
bandVertPtr[1].point.set( 1, -1, mFogBandHeight );
bandVertPtr[2].point.set( 1, -1, 0 );

bandVertPtr[0].color.set( fogColorAlpha );
bandVertPtr[1].color.set( fogColorAlpha );
bandVertPtr[2].color.set( fogColor );

bandVertPtr[3].point.set( -1, -1, mFogBandHeight );
bandVertPtr[4].point.set( 1, -1, 0 );
bandVertPtr[5].point.set( -1, -1, 0 );

bandVertPtr[3].color.set( fogColorAlpha );
bandVertPtr[4].color.set( fogColor );
bandVertPtr[5].color.set( fogColor );

bandVertPtr[6].point.set( 1, -1, mFogBandHeight );
bandVertPtr[7].point.set( 1, 1, mFogBandHeight );
bandVertPtr[8].point.set( 1, 1, 0 );

bandVertPtr[6].color.set( fogColorAlpha );
bandVertPtr[7].color.set( fogColorAlpha );
bandVertPtr[8].color.set( fogColor );

bandVertPtr[9].point.set( 1, -1, mFogBandHeight );
bandVertPtr[10].point.set( 1, 1, 0 );
bandVertPtr[11].point.set( 1, -1, 0 );

bandVertPtr[9].color.set( fogColorAlpha );
bandVertPtr[10].color.set( fogColor );
bandVertPtr[11].color.set( fogColor );

bandVertPtr[12].point.set( -1, 1, mFogBandHeight );
bandVertPtr[13].point.set( -1, -1, mFogBandHeight );
bandVertPtr[14].point.set( -1, -1, 0 );

bandVertPtr[12].color.set( fogColorAlpha );
bandVertPtr[13].color.set( fogColorAlpha );
bandVertPtr[14].color.set( fogColor );

bandVertPtr[15].point.set( -1, 1, mFogBandHeight );
bandVertPtr[16].point.set( -1, -1, 0 );
bandVertPtr[17].point.set( -1, 1, 0 );

bandVertPtr[15].color.set( fogColorAlpha );
bandVertPtr[16].color.set( fogColor );
bandVertPtr[17].color.set( fogColor );

bandVertPtr[18].point.set( 1, 1, mFogBandHeight );
bandVertPtr[19].point.set( -1, 1, mFogBandHeight );
bandVertPtr[20].point.set( -1, 1, 0 );

bandVertPtr[18].color.set( fogColorAlpha );
bandVertPtr[19].color.set( fogColorAlpha );
bandVertPtr[20].color.set( fogColor );

bandVertPtr[21].point.set( 1, 1, mFogBandHeight );
bandVertPtr[22].point.set( -1, 1, 0 );
bandVertPtr[23].point.set( 1, 1, 0 );

bandVertPtr[21].color.set( fogColorAlpha );
bandVertPtr[22].color.set( fogColor );
bandVertPtr[23].color.set( fogColor );
}

// Lower portion of band geometry.
{
bandVertPtr[24].point.set( -1, -1, 0 );
bandVertPtr[25].point.set( 1, -1, 0 );
bandVertPtr[26].point.set( 1, -1, -1 );

bandVertPtr[24].color.set( fogColor );
bandVertPtr[25].color.set( fogColor );
bandVertPtr[26].color.set( fogColor );

bandVertPtr[27].point.set( -1, -1, 0 );
bandVertPtr[28].point.set( 1, -1, -1 );
bandVertPtr[29].point.set( -1, -1, -1 );

bandVertPtr[27].color.set( fogColor );
bandVertPtr[28].color.set( fogColor );
bandVertPtr[29].color.set( fogColor );

bandVertPtr[30].point.set( 1, -1, 0 );
bandVertPtr[31].point.set( 1, 1, 0 );
bandVertPtr[32].point.set( 1, 1, -1 );

bandVertPtr[30].color.set( fogColor );
bandVertPtr[31].color.set( fogColor );
bandVertPtr[32].color.set( fogColor );

bandVertPtr[33].point.set( 1, -1, 0 );
bandVertPtr[34].point.set( 1, 1, -1 );
bandVertPtr[35].point.set( 1, -1, -1 );

bandVertPtr[33].color.set( fogColor );
bandVertPtr[34].color.set( fogColor );
bandVertPtr[35].color.set( fogColor );

bandVertPtr[36].point.set( -1, 1, 0 );
bandVertPtr[37].point.set( -1, -1, 0 );
bandVertPtr[38].point.set( -1, -1, -1 );

bandVertPtr[36].color.set( fogColor );
bandVertPtr[37].color.set( fogColor );
bandVertPtr[38].color.set( fogColor );

bandVertPtr[39].point.set( -1, 1, 0 );
bandVertPtr[40].point.set( -1, -1, -1 );
bandVertPtr[41].point.set( -1, 1, -1 );

bandVertPtr[39].color.set( fogColor );
bandVertPtr[40].color.set( fogColor );
bandVertPtr[41].color.set( fogColor );

bandVertPtr[42].point.set( 1, 1, 0 );
bandVertPtr[43].point.set( -1, 1, 0 );
bandVertPtr[44].point.set( -1, 1, -1 );

bandVertPtr[42].color.set( fogColor );
bandVertPtr[43].color.set( fogColor );
bandVertPtr[44].color.set( fogColor );

bandVertPtr[45].point.set( 1, 1, 0 );
bandVertPtr[46].point.set( -1, 1, -1 );
bandVertPtr[47].point.set( 1, 1, -1 );

bandVertPtr[45].color.set( fogColor );
bandVertPtr[46].color.set( fogColor );
bandVertPtr[47].color.set( fogColor );
ColorI fogColorAlpha( mLastFogColor.red * 255, mLastFogColor.green * 255, mLastFogColor.blue * 255, 20 );
ColorI fogColorAlphaFaint( mLastFogColor.red * 255, mLastFogColor.green * 255, mLastFogColor.blue * 255, 0 );
ColorI fogColorPink( 255, 128, 128 );

F32 fogBase = -1.0f + mFogBandHeight;
F32 totalFogHeight = mFogBandHeight + mFogBandWidth - 1.0f;
if (totalFogHeight > 1.0)
totalFogHeight = 1.0;
F32 degree = M_PI_F / 8.0f;
int pointNum = 0;

for (int i=0;i<16;i++) {
F32 x1 = sin(degree * F32(i));
F32 y1 = cos(degree * F32(i));
F32 x2 = sin(degree * (F32(i) + 1.0f));
F32 y2 = cos(degree * (F32(i) + 1.0f));
pointNum = i * 18;

// very faint uppder portion
bandVertPtr[pointNum].point.set( x1, y1, totalFogHeight + mFogBandWidth );
bandVertPtr[pointNum+1].point.set( x2, y2, totalFogHeight + mFogBandWidth);
bandVertPtr[pointNum+2].point.set( x1, y1, totalFogHeight);

bandVertPtr[pointNum].color.set( fogColorAlphaFaint );
bandVertPtr[pointNum+1].color.set( fogColorAlphaFaint );
bandVertPtr[pointNum+2].color.set( fogColorAlpha );

bandVertPtr[pointNum+3].point.set( x2, y2, totalFogHeight + mFogBandWidth );
bandVertPtr[pointNum+4].point.set( x2, y2, totalFogHeight );
bandVertPtr[pointNum+5].point.set( x1, y1, totalFogHeight );

bandVertPtr[pointNum+3].color.set( fogColorAlphaFaint );
bandVertPtr[pointNum+4].color.set( fogColorAlpha );
bandVertPtr[pointNum+5].color.set( fogColorAlpha );

// middle portion
bandVertPtr[pointNum+6].point.set( x1, y1, totalFogHeight );
bandVertPtr[pointNum+7].point.set( x2, y2, totalFogHeight );
bandVertPtr[pointNum+8].point.set( x1, y1, fogBase );

bandVertPtr[pointNum+6].color.set( fogColorAlpha );
bandVertPtr[pointNum+7].color.set( fogColorAlpha );
bandVertPtr[pointNum+8].color.set( fogColor );

bandVertPtr[pointNum+9].point.set( x2, y2, totalFogHeight );
bandVertPtr[pointNum+10].point.set( x2, y2, fogBase );
bandVertPtr[pointNum+11].point.set( x1, y1, fogBase );

bandVertPtr[pointNum+9].color.set( fogColorAlpha );
bandVertPtr[pointNum+10].color.set( fogColor );
bandVertPtr[pointNum+11].color.set( fogColor );


// lower portion
bandVertPtr[pointNum+12].point.set( x1, y1, -1 );
bandVertPtr[pointNum+13].point.set( x1, y1, fogBase );
bandVertPtr[pointNum+14].point.set( x2, y2, -1 );

bandVertPtr[pointNum+12].color.set( fogColor );
bandVertPtr[pointNum+13].color.set( fogColor );
bandVertPtr[pointNum+14].color.set( fogColor );

bandVertPtr[pointNum+15].point.set( x1, y1, fogBase );
bandVertPtr[pointNum+16].point.set( x2, y2, fogBase );
bandVertPtr[pointNum+17].point.set( x2, y2, -1 );

bandVertPtr[pointNum+15].color.set( fogColor );
bandVertPtr[pointNum+16].color.set( fogColor );
bandVertPtr[pointNum+17].color.set( fogColor );
}

mFogBandVB.unlock();
@@ -602,9 +617,10 @@ void SkyBox::_initMaterial()
desc.setZReadWrite( true, false );
mMatInstance->addStateBlockDesc( desc );

// Also disable lighting on the skybox material by default.
// Allow lighting on the skybox material by default.
FeatureSet features = MATMGR->getDefaultFeatures();
features.removeFeature( MFT_RTLighting );
if ( !mUseLighting )
features.removeFeature( MFT_RTLighting );
features.removeFeature( MFT_Visibility );

// Now initialize the material.
8 Engine/source/environment/skyBox.h
View file
@@ -114,12 +114,18 @@ class SkyBox : public SceneObject
ColorF mLastFogColor;

bool mDrawBottom;
bool mDrawTop;
bool mUseLighting;

F32 mExposure;
ColorF mSkyboxColor;
bool mIsVBDirty;
U32 mPrimCount;

MatrixSet *mMatrixSet;

F32 mFogBandHeight;
F32 mFogBandHeight;
F32 mFogBandWidth;

void _updateMaterial();
void _initMaterial();