void StandardLightVisualiser::addEnvLightVisualiser( GroupPtr &output, Color3f multiplier, const std::string &textureName )
{
IECoreGL::GroupPtr sphereGroup = new IECoreGL::Group();
Imath::M44f trans;
trans.scale( V3f( 1, 1, -1 ) );
trans.rotate( V3f( -0.5 * M_PI, -0.5 * M_PI, 0 ) );
sphereGroup->setTransform( trans );
IECoreGL::SpherePrimitivePtr sphere = new IECoreGL::SpherePrimitive();
sphereGroup->addChild( sphere );
IECore::CompoundObjectPtr parameters = new CompoundObject;
parameters->members()["lightMultiplier"] = new Color3fData( multiplier );
parameters->members()["previewOpacity"] = new FloatData( 1 );
parameters->members()["mapSampler"] = new StringData( textureName );
parameters->members()["defaultColor"] = new Color3fData( Color3f( textureName == "" ? 1.0f : 0.0f ) );
sphereGroup->getState()->add(
new IECoreGL::ShaderStateComponent( ShaderLoader::defaultShaderLoader(), TextureLoader::defaultTextureLoader(), IECoreGL::Shader::defaultVertexSource(), "", environmentLightDrawFragSource(), parameters )
);
sphereGroup->getState()->add(
new IECoreGL::DoubleSidedStateComponent( false )
);
output->addChild( sphereGroup );
}
void StandardLightVisualiser::addBasicLightVisualiser( ConstStringDataPtr type, GroupPtr &output, Color3f multiplier, float coneAngle, float penumbraAngle, const std::string *penumbraType, float lensRadius )
{
bool indicatorFaceCamera = false;
if( !type || type->readable() == "point" )
{
output->addChild( const_pointer_cast<IECoreGL::Renderable>( pointRays() ) );
indicatorFaceCamera = true;
}
else if( type->readable() == "spot" )
{
float innerAngle = 0;
float outerAngle = 0;
if( !penumbraType || *penumbraType == "inset" )
{
outerAngle = coneAngle;
innerAngle = coneAngle - 2.0f * penumbraAngle;
}
else if( *penumbraType == "outset" )
{
outerAngle = coneAngle + 2.0f * penumbraAngle;
innerAngle = coneAngle ;
}
else if( *penumbraType == "absolute" )
{
outerAngle = coneAngle;
innerAngle = penumbraAngle;
}
output->addChild( const_pointer_cast<IECoreGL::Renderable>( spotlightCone( innerAngle, outerAngle, lensRadius ) ) );
output->addChild( const_pointer_cast<IECoreGL::Renderable>( ray() ) );
}
else if( type->readable() == "distant" )
{
for ( int i = 0; i < 3; i++ )
{
IECoreGL::GroupPtr rayGroup = new IECoreGL::Group();
Imath::M44f trans;
trans.rotate( V3f( 0, 0, 2.0 * M_PI / 3.0 * i ) );
trans.translate( V3f( 0, 0.4, 0.5 ) );
rayGroup->addChild( const_pointer_cast<IECoreGL::Renderable>( ray() ) );
rayGroup->setTransform( trans );
output->addChild( rayGroup );
}
}
output->addChild( const_pointer_cast<IECoreGL::Renderable>( colorIndicator( multiplier, indicatorFaceCamera ) ) );
}