Texture::Texture( const Surface32f &surface, Format format )
: mObj( shared_ptr<Obj>( new Obj( surface.getWidth(), surface.getHeight() ) ) )
{
if( format.mInternalFormat < 0 ) {
#if ! defined( CINDER_GLES )
if( GLEE_ARB_texture_float )
format.mInternalFormat = surface.hasAlpha() ? GL_RGBA32F_ARB : GL_RGB32F_ARB;
else
format.mInternalFormat = surface.hasAlpha() ? GL_RGBA : GL_RGB;
#else
format.mInternalFormat = surface.hasAlpha() ? GL_RGBA : GL_RGB;
#endif
}
mObj->mInternalFormat = format.mInternalFormat;
mObj->mTarget = format.mTarget;
init( surface.getData(), surface.hasAlpha()?GL_RGBA:GL_RGB, format );
}
Texture::Texture( const Surface32f &surface, Format format )
: mObj( shared_ptr<Obj>( new Obj( surface.getWidth(), surface.getHeight() ) ) )
{
#if defined( CINDER_MAC )
bool supportsTextureFloat = gl::isExtensionAvailable( "GL_ARB_texture_float" );
#elif defined( CINDER_MSW )
bool supportsTextureFloat = GLEE_ARB_texture_float != 0;
#endif
if( format.mInternalFormat < 0 ) {
#if ! defined( CINDER_GLES )
if( supportsTextureFloat )
format.mInternalFormat = surface.hasAlpha() ? GL_RGBA32F_ARB : GL_RGB32F_ARB;
else
format.mInternalFormat = surface.hasAlpha() ? GL_RGBA : GL_RGB;
#else
format.mInternalFormat = surface.hasAlpha() ? GL_RGBA : GL_RGB;
#endif
}
mObj->mInternalFormat = format.mInternalFormat;
mObj->mTarget = format.mTarget;
init( surface.getData(), surface.hasAlpha()?GL_RGBA:GL_RGB, format );
}
void fsExperiments::setupVbo()
{
GlobalData& data = GlobalData::get();
TriMesh neutralMesh = data.mFaceShift.getNeutralMesh();
size_t numVertices = neutralMesh.getNumVertices();
size_t numBlendShapes = data.mFaceShift.getNumBlendshapes();
gl::VboMesh::Layout layout;
layout.setStaticPositions();
layout.setStaticIndices();
layout.setStaticNormals();
layout.setStaticTexCoords2d();
// TODO: int attribute
layout.mCustomStatic.push_back( std::make_pair( gl::VboMesh::Layout::CUSTOM_ATTR_FLOAT, 0 ) );
data.mVboMesh = gl::VboMesh( neutralMesh.getNumVertices(),
neutralMesh.getNumIndices(), layout, GL_TRIANGLES );
data.mVboMesh.bufferPositions( neutralMesh.getVertices() );
data.mVboMesh.bufferIndices( neutralMesh.getIndices() );
if ( !neutralMesh.hasNormals() )
neutralMesh.recalculateNormals();
data.mVboMesh.bufferNormals( neutralMesh.getNormals() );
data.mVboMesh.bufferTexCoords2d( 0, neutralMesh.getTexCoords() );
data.mVboMesh.unbindBuffers();
vector< float > vertexIndices( numVertices, 0.f );
for ( uint32_t i = 0; i < numVertices; ++i )
vertexIndices[ i ] = static_cast< float >( i );
data.mVboMesh.getStaticVbo().bind();
size_t offset = sizeof( GLfloat ) * ( 3 + 3 + 2 ) * neutralMesh.getNumVertices();
data.mVboMesh.getStaticVbo().bufferSubData( offset,
numVertices * sizeof( float ),
&vertexIndices[ 0 ] );
data.mVboMesh.getStaticVbo().unbind();
// blendshapes texture
gl::Texture::Format format;
format.setTargetRect();
format.setWrap( GL_CLAMP, GL_CLAMP );
format.setMinFilter( GL_NEAREST );
format.setMagFilter( GL_NEAREST );
format.setInternalFormat( GL_RGB32F_ARB );
int verticesPerRow = 32;
int txtWidth = verticesPerRow * numBlendShapes;
int txtHeight = math< float >::ceil( numVertices / (float)verticesPerRow );
Surface32f blendshapeSurface = Surface32f( txtWidth, txtHeight, false );
float *ptr = blendshapeSurface.getData();
size_t idx = 0;
for ( int j = 0; j < txtHeight; j++ )
{
for ( int s = 0; s < verticesPerRow; s++ )
{
for ( size_t i = 0; i < numBlendShapes; i++ )
{
*( reinterpret_cast< Vec3f * >( ptr ) ) = data.mFaceShift.getBlendshapeMesh( i ).getVertices()[ idx ] - neutralMesh.getVertices()[ idx ];
ptr += 3;
}
idx++;
}
}
data.mBlendshapeTexture = gl::Texture( blendshapeSurface, format );
}