//---------------------------------------
void MaterialExporter::setSetParamTexture (
const cgfxAttrDef* attribute,
MObject texture,
COLLADASW::Sampler::SamplerType samplerType,
COLLADASW::ValueType::ColladaType samplerValueType )
{
// Get a pointer to the current stream writer.
COLLADASW::StreamWriter* streamWriter = mDocumentExporter->getStreamWriter();
// Get the image id
MFnDependencyNode textureNode ( texture );
String plugName = textureNode.name().asChar(); // file1
// Get the file texture name
MPlug filenamePlug = textureNode.findPlug ( ATTR_FILE_TEXTURE_NAME );
MString mayaFileName;
filenamePlug.getValue ( mayaFileName );
if ( mayaFileName.length() == 0 ) return;
String fileName = mayaFileName.asChar ();
// Get the image path
COLLADASW::URI shaderFxFileUri = getShaderFxFileUri ();
// Take the filename for the unique image name
COLLADASW::URI sourceFileUri ( shaderFxFileUri, fileName );
if ( sourceFileUri.getScheme ().empty () )
sourceFileUri.setScheme ( COLLADASW::URI::SCHEME_FILE );
String mayaImageId = DocumentExporter::mayaNameToColladaName ( sourceFileUri.getPathFileBase().c_str () );
// Get the image id of the maya image
EffectExporter* effectExporter = mDocumentExporter->getEffectExporter ();
String colladaImageId = effectExporter->findColladaImageId ( mayaImageId );
if ( colladaImageId.empty () )
{
// Check if there is an extra attribute "colladaId" and use this as export id.
MString attributeValue;
DagHelper::getPlugValue ( texture, COLLADA_ID_ATTRIBUTE_NAME, attributeValue );
if ( attributeValue != EMPTY_CSTRING )
{
// Generate a valid collada name, if necessary.
colladaImageId = mDocumentExporter->mayaNameToColladaName ( attributeValue, false );
}
else
{
// Generate a COLLADA id for the new light object
colladaImageId = DocumentExporter::mayaNameToColladaName ( textureNode.name() );
}
// Make the id unique and store it in a map for refernences.
EffectTextureExporter* textureExporter = effectExporter->getTextureExporter ();
colladaImageId = textureExporter->getImageIdList ().addId ( colladaImageId );
textureExporter->getMayaIdColladaImageId () [mayaImageId] = colladaImageId;
}
// Export the image
EffectTextureExporter* textureExporter = mDocumentExporter->getEffectExporter()->getTextureExporter();
COLLADASW::Image* colladaImage = textureExporter->exportImage ( mayaImageId, colladaImageId, sourceFileUri );
mayaImageId = colladaImage->getImageId();
// Create the sampler and surface sid
String samplerSid = mayaImageId + COLLADASW::Sampler::SAMPLER_SID_SUFFIX;
String surfaceSid = mayaImageId + COLLADASW::Sampler::SURFACE_SID_SUFFIX;
// Avoid export of dublicate sampler params
if ( mSamplers.find ( samplerSid ) != mSamplers.end () ) return;
mSamplers.insert ( samplerSid );
// Create the sampler and add the sampler <setparam>
COLLADASW::Sampler sampler ( samplerType, samplerSid, surfaceSid );
sampler.setFormat ( EffectTextureExporter::FORMAT );
sampler.setImageId ( colladaImage->getImageId() );
sampler.addInSetParam ( streamWriter );
}
