void CGlowOverlay::CalcBasis(
const Vector &vToGlow,
float flHorzSize,
float flVertSize,
Vector &vBasePt,
Vector &vUp,
Vector &vRight )
{
const float flOverlayDist = 100;
vBasePt = CurrentViewOrigin() + vToGlow * flOverlayDist;
vUp.Init( 0, 0, 1 );
vRight = vToGlow.Cross( vUp );
VectorNormalize( vRight );
vUp = vRight.Cross( vToGlow );
VectorNormalize( vUp );
vRight *= flHorzSize;
vUp *= flVertSize;
}
void CLampHaloProxy::OnBind( C_BaseEntity *pEnt )
{
if ( !m_pFadeValue )
return;
Vector vecLocal = pEnt->GetAbsOrigin() - CurrentViewOrigin();
VectorNormalize( vecLocal );
float fade = fabs( vecLocal.z );
// I hate these magic numbers here, will have to revise
// (sjb)
if( fade < 0.25 )
{
fade = 0.0;
}
else
{
fade = MIN( (fade - 0.25) * 1.35, 1.0f );
}
m_pFadeValue->SetFloatValue( fade );
}
void CCamoMaterialProxy::GetColors( Vector &diffuseColor, Vector &baseColor, int index,
const Vector &boxMin, const Vector &boxExtents,
const Vector &forward, const Vector &right, const Vector &up,
const Vector& entityPosition )
{
Vector position, transformedPosition;
// hack
// m_pointsInNormalizedBox[index] = Vector( 0.5f, 0.5f, 1.0f );
position[0] = m_pointsInNormalizedBox[index][0] * boxExtents[0] + boxMin[0];
position[1] = m_pointsInNormalizedBox[index][1] * boxExtents[1] + boxMin[1];
position[2] = m_pointsInNormalizedBox[index][2] * boxExtents[2] + boxMin[2];
transformedPosition[0] = right[0] * position[0] + forward[0] * position[1] + up[0] * position[2];
transformedPosition[1] = right[1] * position[0] + forward[1] * position[1] + up[1] * position[2];
transformedPosition[2] = right[2] * position[0] + forward[2] * position[1] + up[2] * position[2];
transformedPosition = transformedPosition + entityPosition;
Vector direction = transformedPosition - CurrentViewOrigin();
VectorNormalize( direction );
direction = direction * ( COORD_EXTENT * 1.74f );
Vector endPoint = position + direction;
// baseColor is already in gamma space
// engine->TraceLineMaterialAndLighting( g_vecInstantaneousRenderOrigin, endPoint, diffuseColor, baseColor );
engine->TraceLineMaterialAndLighting( transformedPosition, endPoint, diffuseColor, baseColor );
// hack - optimize! - convert from linear to gamma space - this should be hidden
diffuseColor[0] = pow( diffuseColor[0], 1.0f / 2.2f );
diffuseColor[1] = pow( diffuseColor[1], 1.0f / 2.2f );
diffuseColor[2] = pow( diffuseColor[2], 1.0f / 2.2f );
#if 0
Msg( "%f %f %f\n",
diffuseColor[0],
diffuseColor[1],
diffuseColor[2] );
#endif
#if 0
float max;
max = diffuseColor[0];
if( diffuseColor[1] > max )
{
max = diffuseColor[1];
}
if( diffuseColor[2] > max )
{
max = diffuseColor[2];
}
if( max > 1.0f )
{
max = 1.0f / max;
diffuseColor = diffuseColor * max;
}
#else
if( diffuseColor[0] > 1.0f )
{
diffuseColor[0] = 1.0f;
}
if( diffuseColor[1] > 1.0f )
{
diffuseColor[1] = 1.0f;
}
if( diffuseColor[2] > 1.0f )
{
diffuseColor[2] = 1.0f;
}
#endif
// hack
//baseColor = Vector( 1.0f, 1.0f, 1.0f );
//diffuseColor = Vector( 1.0f, 1.0f, 1.0f );
}
void CGlowOverlay::Draw( bool bCacheFullSceneState )
{
extern ConVar r_drawsprites;
if( !r_drawsprites.GetBool() )
return;
// Get the vector to the sun.
Vector vToGlow;
if( m_bDirectional )
vToGlow = m_vDirection;
else
vToGlow = m_vPos - CurrentViewOrigin();
VectorNormalize( vToGlow );
float flDot = vToGlow.Dot( CurrentViewForward() );
UpdateGlowObstruction( vToGlow, bCacheFullSceneState );
if( m_flGlowObstructionScale == 0 )
return;
bool bWireframe = ShouldDrawInWireFrameMode() || (r_drawsprites.GetInt() == 2);
CMatRenderContextPtr pRenderContext( materials );
for( int iSprite=0; iSprite < m_nSprites; iSprite++ )
{
CGlowSprite *pSprite = &m_Sprites[iSprite];
// Figure out the color and size to draw it.
float flHorzSize, flVertSize;
Vector vColor;
CalcSpriteColorAndSize( flDot, pSprite, &flHorzSize, &flVertSize, &vColor );
// If we're alpha'd out, then don't bother
if ( vColor.LengthSqr() < 0.00001f )
continue;
// Setup the basis to draw the sprite.
Vector vBasePt, vUp, vRight;
CalcBasis( vToGlow, flHorzSize, flVertSize, vBasePt, vUp, vRight );
//Get our diagonal radius
float radius = (vRight+vUp).Length();
if ( R_CullSphere( view->GetFrustum(), 5, &vBasePt, radius ) )
continue;
// Get our material (deferred default load)
if ( m_Sprites[iSprite].m_pMaterial == NULL )
{
m_Sprites[iSprite].m_pMaterial = materials->FindMaterial( "sprites/light_glow02_add_noz", TEXTURE_GROUP_CLIENT_EFFECTS );
}
Assert( m_Sprites[iSprite].m_pMaterial );
static unsigned int nHDRColorScaleCache = 0;
IMaterialVar *pHDRColorScaleVar = m_Sprites[iSprite].m_pMaterial->FindVarFast( "$hdrcolorscale", &nHDRColorScaleCache );
if( pHDRColorScaleVar )
{
pHDRColorScaleVar->SetFloatValue( m_flHDRColorScale );
}
// Draw the sprite.
IMesh *pMesh = pRenderContext->GetDynamicMesh( false, 0, 0, m_Sprites[iSprite].m_pMaterial );
CMeshBuilder builder;
builder.Begin( pMesh, MATERIAL_QUADS, 1 );
Vector vPt;
vPt = vBasePt - vRight + vUp;
builder.Position3fv( vPt.Base() );
builder.Color4f( VectorExpand(vColor), 1 );
builder.TexCoord2f( 0, 0, 1 );
builder.AdvanceVertex();
vPt = vBasePt + vRight + vUp;
builder.Position3fv( vPt.Base() );
builder.Color4f( VectorExpand(vColor), 1 );
builder.TexCoord2f( 0, 1, 1 );
builder.AdvanceVertex();
vPt = vBasePt + vRight - vUp;
builder.Position3fv( vPt.Base() );
builder.Color4f( VectorExpand(vColor), 1 );
builder.TexCoord2f( 0, 1, 0 );
builder.AdvanceVertex();
vPt = vBasePt - vRight - vUp;
builder.Position3fv( vPt.Base() );
builder.Color4f( VectorExpand(vColor), 1 );
builder.TexCoord2f( 0, 0, 0 );
builder.AdvanceVertex();
builder.End( false, true );
if( bWireframe )
{
IMaterial *pWireframeMaterial = materials->FindMaterial( "debug/debugwireframevertexcolor", TEXTURE_GROUP_OTHER );
pRenderContext->Bind( pWireframeMaterial );
// Draw the sprite.
IMesh *pMesh = pRenderContext->GetDynamicMesh( false, 0, 0, pWireframeMaterial );
CMeshBuilder builder;
builder.Begin( pMesh, MATERIAL_QUADS, 1 );
Vector vPt;
vPt = vBasePt - vRight + vUp;
builder.Position3fv( vPt.Base() );
builder.Color3f( 1.0f, 0.0f, 0.0f );
builder.AdvanceVertex();
vPt = vBasePt + vRight + vUp;
builder.Position3fv( vPt.Base() );
builder.Color3f( 1.0f, 0.0f, 0.0f );
builder.AdvanceVertex();
vPt = vBasePt + vRight - vUp;
builder.Position3fv( vPt.Base() );
builder.Color3f( 1.0f, 0.0f, 0.0f );
builder.AdvanceVertex();
vPt = vBasePt - vRight - vUp;
builder.Position3fv( vPt.Base() );
builder.Color3f( 1.0f, 0.0f, 0.0f );
builder.AdvanceVertex();
builder.End( false, true );
}
}
}
void CGlowOverlay::UpdateGlowObstruction( const Vector &vToGlow, bool bCacheFullSceneState )
{
// If we already cached the glow obstruction and are still using that, early-out
if ( bCacheFullSceneState && m_bCacheGlowObstruction )
return;
if ( bCacheFullSceneState && !m_bCacheGlowObstruction ) // If turning on sky obstruction caching mode
{
m_bCacheGlowObstruction = true;
}
if ( !bCacheFullSceneState && m_bCacheGlowObstruction )
{
m_bCacheGlowObstruction = false;
}
if ( PixelVisibility_IsAvailable() )
{
if ( m_bInSky )
{
const CViewSetup *pViewSetup = view->GetViewSetup();
Vector pos = CurrentViewOrigin() + m_vDirection * (pViewSetup->zFar * 0.99f); // GSTRINGMIGRATION
pixelvis_queryparams_t params;
params.Init( pos, m_flProxyRadius, CalcGlowAspect() );
params.bSizeInScreenspace = true;
// use a pixel query to occlude with models
m_flGlowObstructionScale = PixelVisibility_FractionVisible( params, &m_queryHandle ) * m_skyObstructionScale;
}
else
{
// If it's not in the sky, then we need a valid position or else we don't
// know what's in front of it.
Assert( !m_bDirectional );
pixelvis_queryparams_t params;
params.Init( m_vPos, m_flProxyRadius, CalcGlowAspect() );
m_flGlowObstructionScale = PixelVisibility_FractionVisible( params, &m_queryHandle );
}
return;
}
bool bFade = false;
if ( m_bInSky )
{
// Trace a ray at the object.
trace_t trace;
UTIL_TraceLine( CurrentViewOrigin(), CurrentViewOrigin() + (vToGlow*MAX_TRACE_LENGTH),
CONTENTS_SOLID, NULL, COLLISION_GROUP_NONE, &trace );
bFade = (trace.fraction < 1 && !(trace.surface.flags & SURF_SKY));
}
else
{
// If it's not in the sky, then we need a valid position or else we don't
// know what's in front of it.
Assert( !m_bDirectional );
pixelvis_queryparams_t params;
params.Init( m_vPos, m_flProxyRadius );
bFade = PixelVisibility_FractionVisible( params, &m_queryHandle ) < 1.0f ? true : false;
}
if ( bFade )
{
if ( building_cubemaps.GetBool() )
{
m_flGlowObstructionScale = 0.0f;
}
else
{
m_flGlowObstructionScale -= gpGlobals->frametime / cl_sun_decay_rate.GetFloat();
m_flGlowObstructionScale = MAX( m_flGlowObstructionScale, 0.0f );
}
}
else
{
if ( building_cubemaps.GetBool() )
{
m_flGlowObstructionScale = 1.0f;
}
else
{
m_flGlowObstructionScale += gpGlobals->frametime / cl_sun_decay_rate.GetFloat();
m_flGlowObstructionScale = MIN( m_flGlowObstructionScale, 1.0f );
}
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : frametime -
//-----------------------------------------------------------------------------
void CFXLine::Draw( double frametime )
{
// Update the effect
Update( frametime );
Vector lineDir, viewDir;
//Get the proper orientation for the line
VectorSubtract( m_FXData.m_vecStart, m_FXData.m_vecEnd, lineDir );
VectorSubtract( m_FXData.m_vecEnd, CurrentViewOrigin(), viewDir );
Vector cross = lineDir.Cross( viewDir );
VectorNormalize( cross );
CMatRenderContextPtr pRenderContext( materials );
//Bind the material
IMesh* pMesh = pRenderContext->GetDynamicMesh( true, NULL, NULL, m_FXData.m_pMaterial );
CMeshBuilder meshBuilder;
Vector tmp;
meshBuilder.Begin( pMesh, MATERIAL_QUADS, 1 );
float scaleTimePerc = ( m_FXData.m_flLifeTime / m_FXData.m_flDieTime );
float scale = m_FXData.m_flStartScale + ( ( m_FXData.m_flEndScale - m_FXData.m_flStartScale ) * scaleTimePerc );
color32 color = {255,255,255,255};
float alpha = m_FXData.m_flStartAlpha + ( ( m_FXData.m_flEndAlpha - m_FXData.m_flStartAlpha ) * scaleTimePerc );
alpha = clamp( alpha, 0.0f, 1.0f );
color.a *= alpha;
// Start
VectorMA( m_FXData.m_vecStart, -scale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 1.0f, 1.0f );
meshBuilder.Color4ub( color.r, color.g, color.b, color.a );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
VectorMA( m_FXData.m_vecStart, scale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 0.0f, 1.0f );
meshBuilder.Color4ub( color.r, color.g, color.b, color.a );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
// End
VectorMA( m_FXData.m_vecEnd, scale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 0.0f, 0.0f );
meshBuilder.Color4ub( color.r, color.g, color.b, color.a );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
VectorMA( m_FXData.m_vecEnd, -scale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 1.0f, 0.0f );
meshBuilder.Color4ub( color.r, color.g, color.b, color.a );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
meshBuilder.End();
pMesh->Draw();
}
void FX_DrawLineFade( const Vector &start, const Vector &end, float scale, IMaterial *pMaterial, const color32 &color, float fadeDist )
{
Vector lineDir, viewDir;
//Get the proper orientation for the line
VectorSubtract( end, start, lineDir );
VectorSubtract( end, CurrentViewOrigin(), viewDir );
float lineLength = lineDir.Length();
float t0 = 0.25f;
float t1 = 0.75f;
if ( lineLength > 0 )
{
t0 = fadeDist / lineLength;
t0 = clamp( t0, 0.0f, 0.25f );
t1 = 1.0f - t0;
}
Vector cross = lineDir.Cross( viewDir );
VectorNormalize( cross );
CMatRenderContextPtr pRenderContext( materials );
//Bind the material
IMesh* pMesh = pRenderContext->GetDynamicMesh( true, NULL, NULL, pMaterial );
CMeshBuilder meshBuilder;
Vector tmp;
meshBuilder.Begin( pMesh, MATERIAL_TRIANGLES, 8, 24 );
// 2 5
// 0 1 4 7
// 3 6
// 0,2,1 - 0,1,3 - 7,4,5 - 7,6,4 - 1,4,6, 1,6,3 - 1,5,4 - 1,2,5
// v0
meshBuilder.Position3fv( start.Base() );
meshBuilder.TexCoord2f( 0, 0.5f, 0.0f );
meshBuilder.Color4ub( 0, 0, 0, 0 );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
// v1
Vector v1 = start + t0 * lineDir;
meshBuilder.Position3fv( v1.Base() );
meshBuilder.TexCoord2f( 0, 0.5f, t0 );
meshBuilder.Color4ub( color.r, color.g, color.b, color.a );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
// v2
tmp = v1 - scale*cross;
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 1.0f, t0 );
meshBuilder.Color4ub( color.r, color.g, color.b, color.a );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
// v3
tmp = v1 + scale*cross;
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 0.0f, t0 );
meshBuilder.Color4ub( color.r, color.g, color.b, color.a );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
// v4
Vector v4 = start + t1 * lineDir;
meshBuilder.Position3fv( v4.Base() );
meshBuilder.TexCoord2f( 0, 0.5f, t1 );
meshBuilder.Color4ub( color.r, color.g, color.b, color.a );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
// v5
tmp = v4 - scale*cross;
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 1.0f, t1 );
meshBuilder.Color4ub( color.r, color.g, color.b, color.a );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
// v6
tmp = v4 + scale*cross;
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 0.0f, t1 );
meshBuilder.Color4ub( color.r, color.g, color.b, color.a );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
// v7
meshBuilder.Position3fv( end.Base() );
meshBuilder.TexCoord2f( 0, 0.5f, 1.0f );
meshBuilder.Color4ub( 0, 0, 0, 0 );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
// triangles - 0,2,1 - 0,1,3 - 7,4,5 - 7,6,4 - 1,4,6, 1,6,3 - 1,5,4 - 1,2,5
meshBuilder.FastIndex( 0 );
meshBuilder.FastIndex( 2 );
meshBuilder.FastIndex( 1 );
meshBuilder.FastIndex( 0 );
meshBuilder.FastIndex( 1 );
meshBuilder.FastIndex( 3 );
meshBuilder.FastIndex( 7 );
meshBuilder.FastIndex( 4 );
meshBuilder.FastIndex( 5 );
meshBuilder.FastIndex( 7 );
meshBuilder.FastIndex( 6 );
meshBuilder.FastIndex( 4 );
meshBuilder.FastIndex( 1 );
meshBuilder.FastIndex( 4 );
meshBuilder.FastIndex( 6 );
meshBuilder.FastIndex( 1 );
meshBuilder.FastIndex( 6 );
meshBuilder.FastIndex( 3 );
meshBuilder.FastIndex( 1 );
meshBuilder.FastIndex( 5 );
meshBuilder.FastIndex( 4 );
meshBuilder.FastIndex( 1 );
meshBuilder.FastIndex( 2 );
meshBuilder.FastIndex( 5 );
meshBuilder.End();
pMesh->Draw();
}
static void DrawSpriteTangentSpace( const Vector &vecOrigin, float flWidth, float flHeight, color32 color )
{
unsigned char pColor[4] = { color.r, color.g, color.b, color.a };
// Generate half-widths
flWidth *= 0.5f;
flHeight *= 0.5f;
// Compute direction vectors for the sprite
Vector fwd, right( 1, 0, 0 ), up( 0, 1, 0 );
VectorSubtract( CurrentViewOrigin(), vecOrigin, fwd );
float flDist = VectorNormalize( fwd );
if (flDist >= 1e-3)
{
CrossProduct( CurrentViewUp(), fwd, right );
flDist = VectorNormalize( right );
if (flDist >= 1e-3)
{
CrossProduct( fwd, right, up );
}
else
{
// In this case, fwd == g_vecVUp, it's right above or
// below us in screen space
CrossProduct( fwd, CurrentViewRight(), up );
VectorNormalize( up );
CrossProduct( up, fwd, right );
}
}
Vector left = -right;
Vector down = -up;
Vector back = -fwd;
CMeshBuilder meshBuilder;
Vector point;
IMesh* pMesh = materials->GetDynamicMesh( );
meshBuilder.Begin( pMesh, MATERIAL_QUADS, 1 );
meshBuilder.Color4ubv (pColor);
meshBuilder.TexCoord2f (0, 0, 1);
VectorMA (vecOrigin, -flHeight, up, point);
VectorMA (point, -flWidth, right, point);
meshBuilder.TangentS3fv( left.Base() );
meshBuilder.TangentT3fv( down.Base() );
meshBuilder.Normal3fv( back.Base() );
meshBuilder.Position3fv (point.Base());
meshBuilder.AdvanceVertex();
meshBuilder.Color4ubv (pColor);
meshBuilder.TexCoord2f (0, 0, 0);
VectorMA (vecOrigin, flHeight, up, point);
VectorMA (point, -flWidth, right, point);
meshBuilder.TangentS3fv( left.Base() );
meshBuilder.TangentT3fv( down.Base() );
meshBuilder.Normal3fv( back.Base() );
meshBuilder.Position3fv (point.Base());
meshBuilder.AdvanceVertex();
meshBuilder.Color4ubv (pColor);
meshBuilder.TexCoord2f (0, 1, 0);
VectorMA (vecOrigin, flHeight, up, point);
VectorMA (point, flWidth, right, point);
meshBuilder.TangentS3fv( left.Base() );
meshBuilder.TangentT3fv( down.Base() );
meshBuilder.Normal3fv( back.Base() );
meshBuilder.Position3fv (point.Base());
meshBuilder.AdvanceVertex();
meshBuilder.Color4ubv (pColor);
meshBuilder.TexCoord2f (0, 1, 1);
VectorMA (vecOrigin, -flHeight, up, point);
VectorMA (point, flWidth, right, point);
meshBuilder.TangentS3fv( left.Base() );
meshBuilder.TangentT3fv( down.Base() );
meshBuilder.Normal3fv( back.Base() );
meshBuilder.Position3fv (point.Base());
meshBuilder.AdvanceVertex();
meshBuilder.End();
pMesh->Draw();
}
void CFXStaticLine::Draw( double frametime )
{
Vector lineDir, viewDir, cross;
Vector tmp;
// Update the effect
Update( frametime );
// Get the proper orientation for the line
VectorSubtract( m_vecEnd, m_vecStart, lineDir );
VectorSubtract( m_vecEnd, CurrentViewOrigin(), viewDir );
cross = lineDir.Cross( viewDir );
VectorNormalize( cross );
CMatRenderContextPtr pRenderContext( materials );
//Bind the material
IMesh* pMesh = pRenderContext->GetDynamicMesh( true, NULL, NULL, m_pMaterial );
CMeshBuilder meshBuilder;
meshBuilder.Begin( pMesh, MATERIAL_QUADS, 1 );
bool flipVertical = (m_uiFlags & FXSTATICLINE_FLIP_VERTICAL) != 0;
bool flipHorizontal = (m_uiFlags & FXSTATICLINE_FLIP_HORIZONTAL ) != 0;
//Setup our points
VectorMA( m_vecStart, -m_fScale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.Normal3fv( cross.Base() );
if (flipHorizontal)
meshBuilder.TexCoord2f( 0, 0.0f, 1.0f );
else if (flipVertical)
meshBuilder.TexCoord2f( 0, 0.0f, 0.0f );
else
meshBuilder.TexCoord2f( 0, 1.0f, 1.0f );
meshBuilder.Color4ub( 255, 255, 255, 255 );
meshBuilder.AdvanceVertex();
VectorMA( m_vecStart, m_fScale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.Normal3fv( cross.Base() );
if (flipHorizontal)
meshBuilder.TexCoord2f( 0, 1.0f, 1.0f );
else if (flipVertical)
meshBuilder.TexCoord2f( 0, 1.0f, 0.0f );
else
meshBuilder.TexCoord2f( 0, 0.0f, 1.0f );
meshBuilder.Color4ub( 255, 255, 255, 255 );
meshBuilder.AdvanceVertex();
VectorMA( m_vecEnd, m_fScale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.Normal3fv( cross.Base() );
if (flipHorizontal)
meshBuilder.TexCoord2f( 0, 1.0f, 0.0f );
else if (flipVertical)
meshBuilder.TexCoord2f( 0, 1.0f, 1.0f );
else
meshBuilder.TexCoord2f( 0, 0.0f, 0.0f );
meshBuilder.Color4ub( 255, 255, 255, 255 );
meshBuilder.AdvanceVertex();
VectorMA( m_vecEnd, -m_fScale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.Normal3fv( cross.Base() );
if (flipHorizontal)
meshBuilder.TexCoord2f( 0, 0.0f, 0.0f );
else if (flipVertical)
meshBuilder.TexCoord2f( 0, 0.0f, 1.0f );
else
meshBuilder.TexCoord2f( 0, 1.0f, 0.0f );
meshBuilder.Color4ub( 255, 255, 255, 255 );
meshBuilder.AdvanceVertex();
meshBuilder.End();
pMesh->Draw();
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : timeDelta -
//-----------------------------------------------------------------------------
void C_SignalFlare::Update( float timeDelta )
{
CSimpleEmitter::Update( timeDelta );
//Make sure our stored resources are up to date
RestoreResources();
//Don't do this if the console is down
if ( timeDelta <= 0.0f )
return;
float fColor;
float baseScale = m_flScale;
//Account for fading out
if ( ( m_flDuration != -1.0f ) && ( ( m_flDuration - gpGlobals->curtime ) <= 10.0f ) )
{
baseScale *= ( ( m_flDuration - gpGlobals->curtime ) / 10.0f );
}
//Clamp the scale if vanished
if ( baseScale < 0.01f )
{
baseScale = 0.0f;
if ( m_pParticle[0] != NULL )
{
m_pParticle[0]->m_flDieTime = gpGlobals->curtime;
m_pParticle[0]->m_uchStartSize = m_pParticle[0]->m_uchEndSize = 0;
m_pParticle[0]->m_uchColor[0] = 0;
m_pParticle[0]->m_uchColor[1] = 0;
m_pParticle[0]->m_uchColor[2] = 0;
}
if ( m_pParticle[1] != NULL )
{
m_pParticle[1]->m_flDieTime = gpGlobals->curtime;
m_pParticle[1]->m_uchStartSize = m_pParticle[1]->m_uchEndSize = 0;
m_pParticle[1]->m_uchColor[0] = 0;
m_pParticle[1]->m_uchColor[1] = 0;
m_pParticle[1]->m_uchColor[2] = 0;
}
return;
}
//
// Dynamic light
//
if ( m_bLight )
{
dlight_t *dl= effects->CL_AllocDlight( index );
dl->origin = GetAbsOrigin();
dl->color.r = 255;
dl->color.g = dl->color.b = random->RandomInt( 32, 64 );
dl->radius = baseScale * random->RandomFloat( 110.0f, 128.0f );
dl->die = gpGlobals->curtime;
}
//
// Smoke
//
if ( m_bSmoke )
{
Vector smokeOrg = GetAbsOrigin();
Vector flareScreenDir = ( smokeOrg - CurrentViewOrigin() );
VectorNormalize( flareScreenDir );
smokeOrg = smokeOrg + ( flareScreenDir * 2.0f );
smokeOrg[2] += baseScale * 4.0f;
SimpleParticle *sParticle = (SimpleParticle *) AddParticle( sizeof( SimpleParticle ), g_Mat_DustPuff[1], smokeOrg );
if ( sParticle == NULL )
return;
sParticle->m_flLifetime = 0.0f;
sParticle->m_flDieTime = 1.0f;
sParticle->m_vecVelocity = Vector( random->RandomFloat( -16.0f, 16.0f ), random->RandomFloat( -16.0f, 16.0f ), random->RandomFloat( 8.0f, 16.0f ) + 32.0f );
fColor = random->RandomInt( 64, 128 );
sParticle->m_uchColor[0] = fColor+64;
sParticle->m_uchColor[1] = fColor;
sParticle->m_uchColor[2] = fColor;
sParticle->m_uchStartAlpha = random->RandomInt( 16, 32 );
sParticle->m_uchEndAlpha = 0;
sParticle->m_uchStartSize = random->RandomInt( 2, 4 );
sParticle->m_uchEndSize = sParticle->m_uchStartSize * 6.0f;
sParticle->m_flRoll = random->RandomInt( 0, 360 );
sParticle->m_flRollDelta = random->RandomFloat( -2.0f, 2.0f );
}
//Check for LOS
if ( EffectOccluded( GetAbsOrigin() ) )
{
if ( m_pParticle[0] != NULL )
{
m_pParticle[0]->m_uchColor[0] *= 0.5f;
m_pParticle[0]->m_uchColor[1] *= 0.5f;
m_pParticle[0]->m_uchColor[2] *= 0.5f;
}
if ( m_pParticle[1] != NULL )
{
m_pParticle[1]->m_uchColor[0] *= 0.25f;
m_pParticle[1]->m_uchColor[1] *= 0.25f;
m_pParticle[1]->m_uchColor[2] *= 0.25f;
}
return;
}
//
// Outer glow
//
Vector offset;
//Cause the base of the effect to shake
offset.Random( -0.5f * baseScale, 0.5f * baseScale );
offset += GetAbsOrigin();
if ( m_pParticle[0] != NULL )
{
m_pParticle[0]->m_Pos = offset;
m_pParticle[0]->m_flLifetime = 0.0f;
m_pParticle[0]->m_flDieTime = 2.0f;
m_pParticle[0]->m_vecVelocity.Init();
fColor = random->RandomInt( 100.0f, 128.0f );
m_pParticle[0]->m_uchColor[0] = fColor;
m_pParticle[0]->m_uchColor[1] = fColor;
m_pParticle[0]->m_uchColor[2] = fColor;
m_pParticle[0]->m_uchStartAlpha = fColor;
m_pParticle[0]->m_uchEndAlpha = fColor;
m_pParticle[0]->m_uchStartSize = baseScale * (float) random->RandomInt( 32, 48 );
m_pParticle[0]->m_uchEndSize = m_pParticle[0]->m_uchStartSize;
m_pParticle[0]->m_flRollDelta = 0.0f;
if ( random->RandomInt( 0, 4 ) == 3 )
{
m_pParticle[0]->m_flRoll += random->RandomInt( 2, 8 );
}
}
//
// Inner core
//
//Cause the base of the effect to shake
offset.Random( -1.0f * baseScale, 1.0f * baseScale );
offset += GetAbsOrigin();
if ( m_pParticle[1] != NULL )
{
m_pParticle[1]->m_Pos = offset;
m_pParticle[1]->m_flLifetime = 0.0f;
m_pParticle[1]->m_flDieTime = 2.0f;
m_pParticle[1]->m_vecVelocity.Init();
fColor = 255;
m_pParticle[1]->m_uchColor[0] = fColor;
m_pParticle[1]->m_uchColor[1] = fColor;
m_pParticle[1]->m_uchColor[2] = fColor;
m_pParticle[1]->m_uchStartAlpha = fColor;
m_pParticle[1]->m_uchEndAlpha = fColor;
m_pParticle[1]->m_uchStartSize = baseScale * (float) random->RandomInt( 2, 4 );
m_pParticle[1]->m_uchEndSize = m_pParticle[0]->m_uchStartSize;
m_pParticle[1]->m_flRoll = random->RandomInt( 0, 360 );
}
}
//-----------------------------------------------------------------------------
// Purpose: Special draw for the warped overlay
//-----------------------------------------------------------------------------
void CWarpOverlay::Draw( bool bCacheFullSceneState )
{
// Get the vector to the sun.
Vector vToGlow;
if( m_bDirectional )
vToGlow = m_vDirection;
else
vToGlow = m_vPos - CurrentViewOrigin();
VectorNormalize( vToGlow );
float flDot = vToGlow.Dot( CurrentViewForward() );
if( flDot <= g_flOverlayRange )
return;
UpdateGlowObstruction( vToGlow, bCacheFullSceneState );
if( m_flGlowObstructionScale == 0 )
return;
CMatRenderContextPtr pRenderContext( materials );
//FIXME: Allow multiple?
for( int iSprite=0; iSprite < m_nSprites; iSprite++ )
{
CGlowSprite *pSprite = &m_Sprites[iSprite];
// Figure out the color and size to draw it.
float flHorzSize, flVertSize;
Vector vColor;
CalcSpriteColorAndSize( flDot, pSprite, &flHorzSize, &flVertSize, &vColor );
// Setup the basis to draw the sprite.
Vector vBasePt, vUp, vRight;
CalcBasis( vToGlow, flHorzSize, flVertSize, vBasePt, vUp, vRight );
// Draw the sprite.
IMaterial *pMaterial = materials->FindMaterial( "sun/overlay", TEXTURE_GROUP_CLIENT_EFFECTS );
IMesh *pMesh = pRenderContext->GetDynamicMesh( false, 0, 0, pMaterial );
CMeshBuilder builder;
builder.Begin( pMesh, MATERIAL_QUADS, 1 );
Vector vPt;
vPt = vBasePt - vRight + vUp;
builder.Position3fv( vPt.Base() );
builder.Color4f( VectorExpand(vColor), 1 );
builder.TexCoord2f( 0, 0, 1 );
builder.AdvanceVertex();
vPt = vBasePt + vRight + vUp;
builder.Position3fv( vPt.Base() );
builder.Color4f( VectorExpand(vColor), 1 );
builder.TexCoord2f( 0, 1, 1 );
builder.AdvanceVertex();
vPt = vBasePt + vRight - vUp;
builder.Position3fv( vPt.Base() );
builder.Color4f( VectorExpand(vColor), 1 );
builder.TexCoord2f( 0, 1, 0 );
builder.AdvanceVertex();
vPt = vBasePt - vRight - vUp;
builder.Position3fv( vPt.Base() );
builder.Color4f( VectorExpand(vColor), 1 );
builder.TexCoord2f( 0, 0, 0 );
builder.AdvanceVertex();
builder.End( false, true );
}
}
//-----------------------------------------------------------------------------
// Purpose:
// TFTODO: Make the sniper dot get brighter the more damage it will do.
//-----------------------------------------------------------------------------
int CSniperDot::DrawModel( int flags )
{
// Get the owning player.
C_TFPlayer *pPlayer = ToTFPlayer( GetOwnerEntity() );
if ( !pPlayer )
return -1;
// Get the sprite rendering position.
Vector vecEndPos;
float flSize = 6.0;
if ( !pPlayer->IsDormant() )
{
Vector vecAttachment, vecDir;
QAngle angles;
float flDist = MAX_TRACE_LENGTH;
// Always draw the dot in front of our faces when in first-person.
if ( pPlayer->IsLocalPlayer() )
{
// Take our view position and orientation
vecAttachment = CurrentViewOrigin();
vecDir = CurrentViewForward();
// Clamp the forward distance for the sniper's firstperson
flDist = 384;
flSize = 2.0;
}
else
{
// Take the owning player eye position and direction.
vecAttachment = pPlayer->EyePosition();
QAngle angles = pPlayer->EyeAngles();
AngleVectors( angles, &vecDir );
}
trace_t tr;
UTIL_TraceLine( vecAttachment, vecAttachment + ( vecDir * flDist ), MASK_SHOT, pPlayer, COLLISION_GROUP_NONE, &tr );
// Backup off the hit plane, towards the source
vecEndPos = tr.endpos + vecDir * -4;
}
else
{
// Just use our position if we can't predict it otherwise.
vecEndPos = GetAbsOrigin();
}
// Draw our laser dot in space.
CMatRenderContextPtr pRenderContext( materials );
pRenderContext->Bind( m_hSpriteMaterial, this );
float flLifeTime = gpGlobals->curtime - m_flChargeStartTime;
float flStrength = RemapValClamped( flLifeTime, 0.0, TF_WEAPON_SNIPERRIFLE_DAMAGE_MAX / TF_WEAPON_SNIPERRIFLE_CHARGE_PER_SEC, 0.1, 1.0 );
color32 innercolor = { 255, 255, 255, 255 };
color32 outercolor = { 255, 255, 255, 128 };
DrawSprite( vecEndPos, flSize, flSize, outercolor );
DrawSprite( vecEndPos, flSize * flStrength, flSize * flStrength, innercolor );
// Successful.
return 1;
}
//-----------------------------------------------------------------------------
// Purpose:
// TFTODO: Make the sniper dot get brighter the more damage it will do.
//-----------------------------------------------------------------------------
int CSniperDot::DrawModel( int flags )
{
// Get the owning player.
C_TFPlayer *pPlayer = ToTFPlayer( GetOwnerEntity() );
if ( !pPlayer )
return -1;
// Get the sprite rendering position.
Vector vecEndPos;
float flSize = 6.0;
if ( !pPlayer->IsDormant() )
{
Vector vecAttachment, vecDir;
QAngle angles;
float flDist = MAX_TRACE_LENGTH;
// Always draw the dot in front of our faces when in first-person.
if ( pPlayer->IsLocalPlayer() )
{
// Take our view position and orientation
vecAttachment = CurrentViewOrigin();
vecDir = CurrentViewForward();
// Clamp the forward distance for the sniper's firstperson
flDist = 384;
flSize = 2.0;
}
else
{
// Take the owning player eye position and direction.
vecAttachment = pPlayer->EyePosition();
QAngle angles = pPlayer->EyeAngles();
AngleVectors( angles, &vecDir );
}
trace_t tr;
UTIL_TraceLine( vecAttachment, vecAttachment + ( vecDir * flDist ), MASK_SHOT, pPlayer, COLLISION_GROUP_NONE, &tr );
// Backup off the hit plane, towards the source
vecEndPos = tr.endpos + vecDir * -4;
}
else
{
// Just use our position if we can't predict it otherwise.
vecEndPos = GetAbsOrigin();
}
// Draw our laser dot in space.
CMatRenderContextPtr pRenderContext( materials );
pRenderContext->Bind( m_hSpriteMaterial, this );
float flLifeTime = gpGlobals->curtime - m_flChargeStartTime;
float flStrength = RemapValClamped( flLifeTime, 0.0, TF_WEAPON_SNIPERRIFLE_DAMAGE_MAX / TF_WEAPON_SNIPERRIFLE_CHARGE_PER_SEC, 0.1, 1.0 );
color32 innercolor = { 255, 255, 255, 255 };
color32 outercolor = { 255, 255, 255, 128 };
// PistonMiner: DM sniper point coloring
if (TFGameRules()->IsDeathmatch())
{
// Get the color of the mercenary we are drawing the dot of.
C_TF_PlayerResource *tf_PR = dynamic_cast<C_TF_PlayerResource *>(g_PR);
Color ownercolor = tf_PR->GetPlayerColor(pPlayer->index);
// Convert to HSV so we can edit the color better.
Vector hsv, rgb;
RGBtoHSV(Vector(ownercolor.r() / 255.f, ownercolor.g() / 255.f, ownercolor.b() / 255.f), hsv);
// Set the Value to max for constant brightness.
hsv.z = 1.0;
// Convert back to RGB
HSVtoRGB(hsv, rgb);
// Apply the color to our sprite.
m_hSpriteMaterial->ColorModulate( rgb.x, rgb.y, rgb.z );
}
DrawSprite( vecEndPos, flSize, flSize, outercolor );
DrawSprite( vecEndPos, flSize * flStrength, flSize * flStrength, innercolor );
// Successful.
return 1;
}
float PixelVisibility_DrawProxy( IMatRenderContext *pRenderContext, OcclusionQueryObjectHandle_t queryHandle, Vector origin, float scale, float proxyAspect, IMaterial *pMaterial, bool screenspace )
{
Vector point;
// don't expand this with distance to fit pixels or the sprite will poke through
// only expand the parts perpendicular to the view
float forwardScale = scale;
// draw a pyramid of points touching a sphere of radius "scale" at origin
float pixelsPerUnit = pRenderContext->ComputePixelDiameterOfSphere( origin, 1.0f );
pixelsPerUnit = MAX( pixelsPerUnit, 1e-4f );
if ( screenspace )
{
// Force this to be the size of a sphere of diameter "scale" at some reference distance (1.0 unit)
float pixelsPerUnit2 = pRenderContext->ComputePixelDiameterOfSphere( CurrentViewOrigin() + CurrentViewForward()*1.0f, scale*0.5f );
// force drawing of "scale" pixels
scale = pixelsPerUnit2 / pixelsPerUnit;
}
else
{
float pixels = scale * pixelsPerUnit;
// make the radius larger to ensure a minimum screen space size of the proxy geometry
if ( pixels < MIN_PROXY_PIXELS )
{
scale = MIN_PROXY_PIXELS / pixelsPerUnit;
}
}
// collapses the pyramid to a plane - so this could be a quad instead
Vector dir = origin - CurrentViewOrigin();
VectorNormalize(dir);
origin -= dir * forwardScale;
forwardScale = 0.0f;
//
Vector verts[5];
const float sqrt2 = 0.707106781f; // sqrt(2) - keeps all vectors the same length from origin
scale *= sqrt2;
float scale45x = scale;
float scale45y = scale / proxyAspect;
verts[0] = origin - CurrentViewForward() * forwardScale; // the apex of the pyramid
verts[1] = origin + CurrentViewUp() * scale45y - CurrentViewRight() * scale45x; // these four form the base
verts[2] = origin + CurrentViewUp() * scale45y + CurrentViewRight() * scale45x; // the pyramid is a sprite with a point that
verts[3] = origin - CurrentViewUp() * scale45y + CurrentViewRight() * scale45x; // pokes back toward the camera through any nearby
verts[4] = origin - CurrentViewUp() * scale45y - CurrentViewRight() * scale45x; // geometry
// get screen coords of edges
Vector screen[4];
for ( int i = 0; i < 4; i++ )
{
extern int ScreenTransform( const Vector& point, Vector& screen );
if ( ScreenTransform( verts[i+1], screen[i] ) )
return -1;
}
// compute area and screen-clipped area
float w = screen[1].x - screen[0].x;
float h = screen[0].y - screen[3].y;
float ws = MIN(1.0f, screen[1].x) - MAX(-1.0f, screen[0].x);
float hs = MIN(1.0f, screen[0].y) - MAX(-1.0f, screen[3].y);
float area = w*h; // area can be zero when we ALT-TAB
float areaClipped = ws*hs;
float ratio = 0.0f;
if ( area != 0 )
{
// compute the ratio of the area not clipped by the frustum to total area
ratio = areaClipped / area;
ratio = clamp(ratio, 0.0f, 1.0f);
}
pRenderContext->BeginOcclusionQueryDrawing( queryHandle );
CMeshBuilder meshBuilder;
IMesh* pMesh = pRenderContext->GetDynamicMesh( false, NULL, NULL, pMaterial );
meshBuilder.Begin( pMesh, MATERIAL_TRIANGLES, 4 );
// draw a pyramid
for ( int i = 0; i < 4; i++ )
{
int a = i+1;
int b = (a%4)+1;
meshBuilder.Position3fv( verts[0].Base() );
meshBuilder.AdvanceVertex();
meshBuilder.Position3fv( verts[a].Base() );
meshBuilder.AdvanceVertex();
meshBuilder.Position3fv( verts[b].Base() );
meshBuilder.AdvanceVertex();
}
meshBuilder.End();
pMesh->Draw();
// sprite/quad proxy
#if 0
meshBuilder.Begin( pMesh, MATERIAL_QUADS, 1 );
VectorMA (origin, -scale, CurrentViewUp(), point);
VectorMA (point, -scale, CurrentViewRight(), point);
meshBuilder.Position3fv (point.Base());
meshBuilder.AdvanceVertex();
VectorMA (origin, scale, CurrentViewUp(), point);
VectorMA (point, -scale, CurrentViewRight(), point);
meshBuilder.Position3fv (point.Base());
meshBuilder.AdvanceVertex();
VectorMA (origin, scale, CurrentViewUp(), point);
VectorMA (point, scale, CurrentViewRight(), point);
meshBuilder.Position3fv (point.Base());
meshBuilder.AdvanceVertex();
VectorMA (origin, -scale, CurrentViewUp(), point);
VectorMA (point, scale, CurrentViewRight(), point);
meshBuilder.Position3fv (point.Base());
meshBuilder.AdvanceVertex();
meshBuilder.End();
pMesh->Draw();
#endif
pRenderContext->EndOcclusionQueryDrawing( queryHandle );
// fraction clipped by frustum
return ratio;
}
//-----------------------------------------------------------------------------
// Purpose: Simulate and render the particle in this system
// Input : *pInParticle - particle to consider
// *pDraw - drawing utilities
// &sortKey - sorting key
// Output : Returns true on success, false on failure.
//-----------------------------------------------------------------------------
bool CSimple3DEmitter::SimulateAndRender( Particle *pInParticle, ParticleDraw *pDraw, float &sortKey )
{
Particle3D *pParticle = (Particle3D *) pInParticle;
const float timeDelta = pDraw->GetTimeDelta();
//Should this particle die?
pParticle->m_flLifetime += timeDelta;
if ( pParticle->m_flLifetime >= pParticle->m_flDieTime )
return false;
sortKey = CurrentViewForward().Dot( CurrentViewOrigin() - pParticle->m_Pos );
// -------------------------------------------------------
// Set color based on direction towards camera
// -------------------------------------------------------
Vector color;
Vector vFaceNorm;
Vector vCameraToFace = (pParticle->m_Pos - CurrentViewOrigin());
AngleVectors(pParticle->m_vAngles,&vFaceNorm);
float flFacing = DotProduct(vCameraToFace,vFaceNorm);
if (flFacing <= 0)
{
color[0] = pParticle->m_uchFrontColor[0] / 255.0f;
color[1] = pParticle->m_uchFrontColor[1] / 255.0f;
color[2] = pParticle->m_uchFrontColor[2] / 255.0f;
}
else
{
color[0] = pParticle->m_uchBackColor[0] / 255.0f;
color[1] = pParticle->m_uchBackColor[1] / 255.0f;
color[2] = pParticle->m_uchBackColor[2] / 255.0f;
}
// Angular rotation
pParticle->m_vAngles.x += pParticle->m_flAngSpeed * timeDelta;
pParticle->m_vAngles.y += pParticle->m_flAngSpeed * timeDelta;
pParticle->m_vAngles.z += pParticle->m_flAngSpeed * timeDelta;
//Render it in world space
RenderParticle_ColorSizeAngles(
pDraw,
pParticle->m_Pos,
color,
1.0f - (pParticle->m_flLifetime / pParticle->m_flDieTime),
pParticle->m_uchSize,
pParticle->m_vAngles);
//Simulate the movement with collision
trace_t trace;
m_ParticleCollision.MoveParticle( pParticle->m_Pos, pParticle->m_vecVelocity, &pParticle->m_flAngSpeed, timeDelta, &trace );
// ---------------------------------------
// Decay towards flat
// ---------------------------------------
if (pParticle->m_flAngSpeed == 0 || trace.fraction != 1.0)
{
pParticle->m_vAngles.x = anglemod(pParticle->m_vAngles.x);
if (pParticle->m_vAngles.x < 180)
{
if (fabs(pParticle->m_vAngles.x - 90) > 0.5)
{
pParticle->m_vAngles.x = 0.5*pParticle->m_vAngles.x + 46;
}
}
else
{
if (fabs(pParticle->m_vAngles.x - 270) > 0.5)
{
pParticle->m_vAngles.x = 0.5*pParticle->m_vAngles.x + 135;
}
}
pParticle->m_vAngles.y = anglemod(pParticle->m_vAngles.y);
if (fabs(pParticle->m_vAngles.y) > 0.5)
{
pParticle->m_vAngles.y = 0.5*pParticle->m_vAngles.z;
}
}
return true;
}
//-----------------------------------------------------------------------------
// Compute the bounding box's center, size, and basis
//-----------------------------------------------------------------------------
void C_EntityDissolve::ComputeRenderInfo( mstudiobbox_t *pHitBox, const matrix3x4_t &hitboxToWorld,
Vector *pVecAbsOrigin, Vector *pXVec, Vector *pYVec )
{
// Compute the center of the hitbox in worldspace
Vector vecHitboxCenter;
VectorAdd( pHitBox->bbmin, pHitBox->bbmax, vecHitboxCenter );
vecHitboxCenter *= 0.5f;
VectorTransform( vecHitboxCenter, hitboxToWorld, *pVecAbsOrigin );
// Get the object's basis
Vector vec[3];
MatrixGetColumn( hitboxToWorld, 0, vec[0] );
MatrixGetColumn( hitboxToWorld, 1, vec[1] );
MatrixGetColumn( hitboxToWorld, 2, vec[2] );
// vec[1] *= -1.0f;
Vector vecViewDir;
VectorSubtract( CurrentViewOrigin(), *pVecAbsOrigin, vecViewDir );
VectorNormalize( vecViewDir );
// Project the shadow casting direction into the space of the hitbox
Vector localViewDir;
localViewDir[0] = DotProduct( vec[0], vecViewDir );
localViewDir[1] = DotProduct( vec[1], vecViewDir );
localViewDir[2] = DotProduct( vec[2], vecViewDir );
// Figure out which vector has the largest component perpendicular
// to the view direction...
// Sort by how perpendicular it is
int vecIdx[3];
SortAbsVectorComponents( localViewDir, vecIdx );
// Here's our hitbox basis vectors; namely the ones that are
// most perpendicular to the view direction
*pXVec = vec[vecIdx[0]];
*pYVec = vec[vecIdx[1]];
// Project them into a plane perpendicular to the view direction
*pXVec -= vecViewDir * DotProduct( vecViewDir, *pXVec );
*pYVec -= vecViewDir * DotProduct( vecViewDir, *pYVec );
VectorNormalize( *pXVec );
VectorNormalize( *pYVec );
// Compute the hitbox size
Vector boxSize;
VectorSubtract( pHitBox->bbmax, pHitBox->bbmin, boxSize );
// We project the two longest sides into the vectors perpendicular
// to the projection direction, then add in the projection of the perp direction
Vector2D size( boxSize[vecIdx[0]], boxSize[vecIdx[1]] );
size.x *= fabs( DotProduct( vec[vecIdx[0]], *pXVec ) );
size.y *= fabs( DotProduct( vec[vecIdx[1]], *pYVec ) );
// Add the third component into x and y
size.x += boxSize[vecIdx[2]] * fabs( DotProduct( vec[vecIdx[2]], *pXVec ) );
size.y += boxSize[vecIdx[2]] * fabs( DotProduct( vec[vecIdx[2]], *pYVec ) );
// Bloat a bit, since the shadow wants to extend outside the model a bit
size *= 2.0f;
// Clamp the minimum size
Vector2DMax( size, Vector2D(10.0f, 10.0f), size );
// Factor the size into the xvec + yvec
(*pXVec) *= size.x * 0.5f;
(*pYVec) *= size.y * 0.5f;
}
void CFXDiscreetLine::Draw( double frametime )
{
Vector lineDir, viewDir, cross;
Vector vecEnd, vecStart;
Vector tmp;
// Update the effect
Update( frametime );
// Calculate our distance along our path
float sDistance = m_fVelocity * m_fStartTime;
float eDistance = sDistance - m_fLength;
//Clip to start
sDistance = MAX( 0.0f, sDistance );
eDistance = MAX( 0.0f, eDistance );
if ( ( sDistance == 0.0f ) && ( eDistance == 0.0f ) )
return;
// Clip it
if ( m_fClipLength != 0.0f )
{
sDistance = MIN( sDistance, m_fClipLength );
eDistance = MIN( eDistance, m_fClipLength );
}
// Get our delta to calculate the tc offset
float dDistance = fabs( sDistance - eDistance );
float dTotal = ( m_fLength != 0.0f ) ? m_fLength : 0.01f;
float fOffset = ( dDistance / dTotal );
// Find our points along our path
VectorMA( m_vecOrigin, sDistance, m_vecDirection, vecEnd );
VectorMA( m_vecOrigin, eDistance, m_vecDirection, vecStart );
//Setup our info for drawing the line
VectorSubtract( vecEnd, vecStart, lineDir );
VectorSubtract( vecEnd, CurrentViewOrigin(), viewDir );
cross = lineDir.Cross( viewDir );
VectorNormalize( cross );
CMeshBuilder meshBuilder;
IMesh *pMesh;
CMatRenderContextPtr pRenderContext( materials );
// Better, more visible tracers
if ( tracer_extra.GetBool() )
{
float flScreenWidth = ScreenWidth();
float flHalfScreenWidth = flScreenWidth * 0.5f;
float zCoord = CurrentViewForward().Dot( vecStart - CurrentViewOrigin() );
float flScreenSpaceWidth = m_fScale * flHalfScreenWidth / zCoord;
float flAlpha;
float flScale;
if ( flScreenSpaceWidth < 0.5f )
{
flAlpha = RemapVal( flScreenSpaceWidth, 0.25f, 2.0f, 0.3f, 1.0f );
flAlpha = clamp( flAlpha, 0.25f, 1.0f );
flScale = 0.5f * zCoord / flHalfScreenWidth;
}
else
{
flAlpha = 1.0f;
flScale = m_fScale;
}
//Bind the material
pMesh = pRenderContext->GetDynamicMesh( true, NULL, NULL, m_pMaterial );
meshBuilder.Begin( pMesh, MATERIAL_QUADS, 2 );
float color = (int) 255.0f * flAlpha;
//FIXME: for now no coloration
VectorMA( vecStart, -flScale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 1.0f, 0.0f );
meshBuilder.Color4ub( color, color, color, 255 );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
VectorMA( vecStart, flScale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 0.0f, 0.0f );
meshBuilder.Color4ub( color, color, color, 255 );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
VectorMA( vecEnd, flScale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 0.0f, fOffset );
meshBuilder.Color4ub( color, color, color, 255 );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
VectorMA( vecEnd, -flScale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 1.0f, fOffset );
meshBuilder.Color4ub( color, color, color, 255 );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
flScale = flScale * 2.0f;
color = (int) 64.0f * flAlpha;
// Soft outline
VectorMA( vecStart, -flScale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 1.0f, 0.0f );
meshBuilder.Color4ub( color, color, color, 255 );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
VectorMA( vecStart, flScale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 0.0f, 0.0f );
meshBuilder.Color4ub( color, color, color, 255 );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
VectorMA( vecEnd, flScale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 0.0f, fOffset );
meshBuilder.Color4ub( color, color, color, 255 );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
VectorMA( vecEnd, -flScale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 1.0f, fOffset );
meshBuilder.Color4ub( color, color, color, 255 );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
}
else
{
//Bind the material
pMesh = pRenderContext->GetDynamicMesh( true, NULL, NULL, m_pMaterial );
meshBuilder.Begin( pMesh, MATERIAL_QUADS, 1 );
//FIXME: for now no coloration
VectorMA( vecStart, -m_fScale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 1.0f, 0.0f );
meshBuilder.Color4ub( 255, 255, 255, 255 );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
VectorMA( vecStart, m_fScale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 0.0f, 0.0f );
meshBuilder.Color4ub( 255, 255, 255, 255 );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
VectorMA( vecEnd, m_fScale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 0.0f, fOffset );
meshBuilder.Color4ub( 255, 255, 255, 255 );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
VectorMA( vecEnd, -m_fScale, cross, tmp );
meshBuilder.Position3fv( tmp.Base() );
meshBuilder.TexCoord2f( 0, 1.0f, fOffset );
meshBuilder.Color4ub( 255, 255, 255, 255 );
meshBuilder.Normal3fv( cross.Base() );
meshBuilder.AdvanceVertex();
}
meshBuilder.End();
pMesh->Draw();
}