void BaseShapeUI::getDrawRequests( const MDrawInfo & info, bool objectAndActiveOnly, MDrawRequestQueue & requests ) {
MStatus status;
MDrawData data;
BaseShape *shape = (BaseShape *) surfaceShape();
MDrawRequest request = info.getPrototype(*this);
M3dView view = info.view();
getDrawData(shape, data);
request.setDrawData(data);
MDagPath path = request.multiPath();
MMaterial material = MPxSurfaceShapeUI::material(path);
if (!(status = material.evaluateMaterial(view, path)))
status.perror("MMaterial::evaluateMaterial");
if (!(status = material.evaluateDiffuse()))
status.perror("MMaterial::evaluateDiffuse");
request.setMaterial(material);
request.setToken(info.displayStyle());
requests.add(request);
}
/// \todo We should be firing off a separate drawRequest for the components, then we can be done with the "hiliteGroups" mechanism.
void ProceduralHolderUI::getDrawRequests( const MDrawInfo &info, bool objectAndActiveOnly, MDrawRequestQueue &requests )
{
// it's easy if noone want to look at us
if( !info.objectDisplayStatus( M3dView::kDisplayMeshes ) )
{
return;
}
// the node we're meant to be drawing
ProceduralHolder *proceduralHolder = (ProceduralHolder *)surfaceShape();
// draw data encapsulating that node
MDrawData drawData;
getDrawData( proceduralHolder, drawData );
// a request for the bound if necessary
MPlug pDrawBound( proceduralHolder->thisMObject(), ProceduralHolder::aDrawBound );
bool drawBound = true;
pDrawBound.getValue( drawBound );
if( drawBound )
{
MDrawRequest request = info.getPrototype( *this );
request.setDrawData( drawData );
request.setToken( BoundDrawMode );
request.setDisplayStyle( M3dView::kWireFrame );
setWireFrameColors( request, info.displayStatus() );
requests.add( request );
}
// requests for the scene if necessary
MPlug pGLPreview( proceduralHolder->thisMObject(), ProceduralHolder::aGLPreview );
bool glPreview = false;
pGLPreview.getValue( glPreview );
if( glPreview )
{
if( info.displayStyle()==M3dView::kGouraudShaded || info.displayStyle()==M3dView::kFlatShaded )
{
// make a request for solid drawing with a material
MDrawRequest solidRequest = info.getPrototype( *this );
solidRequest.setDrawData( drawData );
MDagPath path = info.multiPath();
M3dView view = info.view();
MMaterial material = MPxSurfaceShapeUI::material( path );
if( !material.evaluateMaterial( view, path ) )
{
MString pathName = path.fullPathName();
IECore::msg( IECore::Msg::Warning, "ProceduralHolderUI::getDrawRequests", boost::format( "Failed to evaluate material for \"%s\"." ) % pathName.asChar() );
}
if( material.materialIsTextured() )
{
material.evaluateTexture( drawData );
}
solidRequest.setMaterial( material );
// set the transparency request. we don't have a decent way of finding out
// if shaders applied by the procedural are transparent, so we've got a transparency
// attribute on the procedural holder for users to use. maya materials may also say
// they're transparent. if either asks for transparency then we'll ask for it here
bool transparent = false;
material.getHasTransparency( transparent );
if( !transparent )
{
MPlug pT( proceduralHolder->thisMObject(), ProceduralHolder::aTransparent );
bool transparent = false;
pT.getValue( transparent );
}
solidRequest.setIsTransparent( transparent );
solidRequest.setToken( SceneDrawMode );
requests.add( solidRequest );
// and add another request for wireframe drawing if we're selected
if( info.displayStatus()==M3dView::kActive || info.displayStatus()==M3dView::kLead || info.displayStatus()==M3dView::kHilite )
{
MDrawRequest wireRequest = info.getPrototype( *this );
wireRequest.setDrawData( drawData );
wireRequest.setDisplayStyle( M3dView::kWireFrame );
wireRequest.setToken( SceneDrawMode );
setWireFrameColors( wireRequest, info.displayStatus() );
wireRequest.setComponent( MObject::kNullObj );
if ( !objectAndActiveOnly )
{
if ( proceduralHolder->hasActiveComponents() )
{
MObjectArray components = proceduralHolder->activeComponents();
MObject component = components[0]; // Should filter list
wireRequest.setComponent( component );
}
}
requests.add( wireRequest );
}
}
else
{
MDrawRequest request = info.getPrototype( *this );
request.setDrawData( drawData );
setWireFrameColors( request, info.displayStatus() );
request.setToken( SceneDrawMode );
request.setComponent( MObject::kNullObj );
if ( !objectAndActiveOnly )
{
if ( proceduralHolder->hasActiveComponents() )
{
MObjectArray components = proceduralHolder->activeComponents();
MObject component = components[0]; // Should filter list
request.setComponent( component );
}
}
requests.add( request );
}
}
}
/* override */
void apiSimpleShapeUI::getDrawRequests( const MDrawInfo & info,
bool objectAndActiveOnly,
MDrawRequestQueue & queue )
//
// Description:
//
// Add draw requests to the draw queue
//
// Arguments:
//
// info - current drawing state
// objectsAndActiveOnly - no components if true
// queue - queue of draw requests to add to
//
{
// Get the data necessary to draw the shape
//
MDrawData data;
apiSimpleShape* shape = (apiSimpleShape*) surfaceShape();
MVectorArray* geomPtr = shape->getControlPoints();
// This call creates a prototype draw request that we can fill
// in and then add to the draw queue.
//
MDrawRequest request = info.getPrototype( *this );
// Stuff our data into the draw request, it'll be used when the drawing
// actually happens
getDrawData( geomPtr, data );
request.setDrawData( data );
// Decode the draw info and determine what needs to be drawn
//
M3dView::DisplayStyle appearance = info.displayStyle();
M3dView::DisplayStatus displayStatus = info.displayStatus();
switch ( appearance )
{
case M3dView::kWireFrame :
{
request.setToken( kDrawWireframe );
M3dView::ColorTable activeColorTable = M3dView::kActiveColors;
M3dView::ColorTable dormantColorTable = M3dView::kDormantColors;
switch ( displayStatus )
{
case M3dView::kLead :
request.setColor( LEAD_COLOR, activeColorTable );
break;
case M3dView::kActive :
request.setColor( ACTIVE_COLOR, activeColorTable );
break;
case M3dView::kActiveAffected :
request.setColor( ACTIVE_AFFECTED_COLOR, activeColorTable );
break;
case M3dView::kDormant :
request.setColor( DORMANT_COLOR, dormantColorTable );
break;
case M3dView::kHilite :
request.setColor( HILITE_COLOR, activeColorTable );
break;
default:
break;
}
queue.add( request );
break;
}
case M3dView::kGouraudShaded :
{
// Create the smooth shaded draw request
//
request.setToken( kDrawSmoothShaded );
// Need to get the material info
//
MDagPath path = info.multiPath(); // path to your dag object
M3dView view = info.view();; // view to draw to
MMaterial material = MPxSurfaceShapeUI::material( path );
// Evaluate the material and if necessary, the texture.
//
if ( ! material.evaluateMaterial( view, path ) ) {
cerr << "Couldnt evaluate\n";
}
bool drawTexture = true;
if ( drawTexture && material.materialIsTextured() ) {
material.evaluateTexture( data );
}
request.setMaterial( material );
// request.setDisplayStyle( appearance );
bool materialTransparent = false;
material.getHasTransparency( materialTransparent );
if ( materialTransparent ) {
request.setIsTransparent( true );
}
queue.add( request );
// create a draw request for wireframe on shaded if
// necessary.
//
if ( (displayStatus == M3dView::kActive) ||
(displayStatus == M3dView::kLead) ||
(displayStatus == M3dView::kHilite) )
{
MDrawRequest wireRequest = info.getPrototype( *this );
wireRequest.setDrawData( data );
wireRequest.setToken( kDrawWireframeOnShaded );
wireRequest.setDisplayStyle( M3dView::kWireFrame );
M3dView::ColorTable activeColorTable = M3dView::kActiveColors;
switch ( displayStatus )
{
case M3dView::kLead :
wireRequest.setColor( LEAD_COLOR, activeColorTable );
break;
case M3dView::kActive :
wireRequest.setColor( ACTIVE_COLOR, activeColorTable );
break;
case M3dView::kHilite :
wireRequest.setColor( HILITE_COLOR, activeColorTable );
break;
default :
break;
}
queue.add( wireRequest );
}
break;
}
case M3dView::kFlatShaded :
request.setToken( kDrawFlatShaded );
break;
default:
break;
}
// Add draw requests for components
//
if ( !objectAndActiveOnly ) {
// Inactive components
//
if ( (appearance == M3dView::kPoints) ||
(displayStatus == M3dView::kHilite) )
{
MDrawRequest vertexRequest = info.getPrototype( *this );
vertexRequest.setDrawData( data );
vertexRequest.setToken( kDrawVertices );
vertexRequest.setColor( DORMANT_VERTEX_COLOR,
M3dView::kActiveColors );
queue.add( vertexRequest );
}
// Active components
//
if ( surfaceShape()->hasActiveComponents() ) {
MDrawRequest activeVertexRequest = info.getPrototype( *this );
activeVertexRequest.setDrawData( data );
activeVertexRequest.setToken( kDrawVertices );
activeVertexRequest.setColor( ACTIVE_VERTEX_COLOR,
M3dView::kActiveColors );
MObjectArray clist = surfaceShape()->activeComponents();
MObject vertexComponent = clist[0]; // Should filter list
activeVertexRequest.setComponent( vertexComponent );
queue.add( activeVertexRequest );
}
}
}
/* virtual */
MStatus pnTriangles::bind(const MDrawRequest& request, M3dView& view)
//
// Description:
// This bind demonstrates the usage of internal material
// and texture properties. This shader must be connected
// to the "hardwareShader" attribute of a lambert derived
// shader.
//
{
// Setup the view
view.beginGL();
glPushAttrib( GL_ALL_ATTRIB_BITS );
glPushClientAttrib(GL_CLIENT_VERTEX_ARRAY_BIT);
MColor diffuse(1.0F, 1.0F, 0.0F, 1.0F);
MColor specular(1.0F, 1.0F, 1.0F, 1.0F);
MColor emission(0.0F, 0.0F, 0.0F, 1.0F);
MColor ambient(0.2F, 0.2F, 0.2F, 1.0F);
// Get the diffuse and specular colors
//
float shininess;
bool hasTransparency = false;
MMaterial material = request.material();
fInTexturedMode = material.materialIsTextured();
// Setting this to true will get the default "green" material back
// since it will try and evaluate this shader, which internally
// Maya does not understand -> thus giving the "green" material back
bool useInternalMaterialSetting = false;
if (!useInternalMaterialSetting)
{
material.getEmission( emission );
material.getSpecular( specular );
shininess = 13.0;
}
material.getHasTransparency( hasTransparency );
if (!fInTexturedMode)
{
if (!fTestVertexProgram && !useInternalMaterialSetting)
material.getDiffuse( diffuse );
}
// In textured mode. Diffuse material is always white
// for texture blends
else
{
if (!useInternalMaterialSetting)
diffuse.r = diffuse.g = diffuse.b = diffuse.a = 1.0;
}
// Use a vertex program to set up shading
//
if (fTestVertexProgram)
{
bindVertexProgram(diffuse, specular, emission, ambient);
}
else if (fTestFragmentProgram)
{
bindFragmentProgram();
}
// Don't use a vertex program to set up shading
//
else
{
// Set up the material state
//
glEnable(GL_COLOR_MATERIAL);
glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT);
glColor4fv(&ambient.r);
if (fInTexturedMode)
{
glEnable( GL_TEXTURE_2D );
MDrawData drawData = request.drawData();
material.applyTexture( view, drawData );
float scaleS, scaleT, translateS, translateT, rotate;
material.getTextureTransformation(scaleS, scaleT, translateS,
translateT, rotate);
rotate = DEG_TO_RAD(-rotate);
float c = cosf(rotate);
float s = sinf(rotate);
translateS += ((c+s)/2.0F);
translateT += ((c-s)/2.0F);
glMatrixMode(GL_TEXTURE);
glPushMatrix();
glLoadIdentity();
if(scaleS != 1.0f || scaleT != 1.0f)
glScalef(1.0f/scaleS, 1.0f/scaleT, 1.0f);
if(translateS != 0.0f || translateT != 0.0f)
glTranslatef(0.5f-translateS, 0.5f-translateT, 0.0f);
else
glTranslatef(0.5f, 0.5f, 0.0f);
if(rotate != 0.0f)
glRotatef(-rotate, 0.0f, 0.0f, 1.0f);
glMatrixMode(GL_MODELVIEW);
}
if (!useInternalMaterialSetting)
{
glColorMaterial(GL_FRONT_AND_BACK, GL_DIFFUSE);
glColor4fv(&diffuse.r);
glColorMaterial(GL_FRONT_AND_BACK, GL_SPECULAR);
glColor4fv(&specular.r);
glColorMaterial(GL_FRONT_AND_BACK, GL_EMISSION);
glColor4fv(&emission.r);
glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, shininess);
}
else
{
const MDagPath dagPath = request.multiPath();
material.evaluateMaterial( view, dagPath );
material.setMaterial(dagPath, hasTransparency);
}
}
// Do PN triangles in hardware, or do nothing
// if LOD = 0
if (fExtensionSupported[kPNTriangesEXT] || (fSubdivisions == 0))
{
if (fSubdivisions != 0)
{
glEnable( GL_PN_TRIANGLES_ATI );
// Set point mode
//
if (fPointMode == kPointLinear)
glPNTrianglesiATI( GL_PN_TRIANGLES_POINT_MODE_ATI,
GL_PN_TRIANGLES_POINT_MODE_LINEAR_ATI);
else
glPNTrianglesiATI( GL_PN_TRIANGLES_POINT_MODE_ATI,
GL_PN_TRIANGLES_POINT_MODE_CUBIC_ATI);
// Set normal mode
//
if (fNormalMode == kNormalLinear)
glPNTrianglesiATI( GL_PN_TRIANGLES_NORMAL_MODE_ATI,
GL_PN_TRIANGLES_NORMAL_MODE_LINEAR_ATI);
else
glPNTrianglesiATI( GL_PN_TRIANGLES_NORMAL_MODE_ATI,
GL_PN_TRIANGLES_NORMAL_MODE_QUADRATIC_ATI);
// Set tessellation level
//
glPNTrianglesiATI( GL_PN_TRIANGLES_TESSELATION_LEVEL_ATI,
fSubdivisions );
}
}
view.endGL();
return MS::kSuccess;
}
void SceneShapeUI::getDrawRequests( const MDrawInfo &info, bool objectAndActiveOnly, MDrawRequestQueue &requests )
{
// it's easy if no one want to look at us
if( !info.objectDisplayStatus( M3dView::kDisplayMeshes ) )
{
return;
}
// the node we're meant to be drawing
SceneShape *sceneShape = (SceneShape *)surfaceShape();
if( !sceneShape->getSceneInterface() )
{
return;
}
// draw data encapsulating that node
MDrawData drawData;
getDrawData( sceneShape, drawData );
// a request for the bound if necessary
MPlug pDrawBound( sceneShape->thisMObject(), SceneShape::aDrawRootBound );
bool drawBound;
pDrawBound.getValue( drawBound );
if( drawBound )
{
bool doDrawBound = true;
// If objectOnly is true, check for an object. If none found, no need to add the bound request.
MPlug pObjectOnly( sceneShape->thisMObject(), SceneShape::aObjectOnly );
bool objectOnly;
pObjectOnly.getValue( objectOnly );
if( objectOnly && !sceneShape->getSceneInterface()->hasObject() )
{
doDrawBound = false;
}
if( doDrawBound )
{
MDrawRequest request = info.getPrototype( *this );
request.setDrawData( drawData );
request.setToken( BoundDrawMode );
request.setDisplayStyle( M3dView::kWireFrame );
setWireFrameColors( request, info.displayStatus() );
requests.add( request );
}
}
MPlug pDrawAllBounds( sceneShape->thisMObject(), SceneShape::aDrawChildBounds );
bool drawAllBounds = false;
pDrawAllBounds.getValue( drawAllBounds );
// requests for the scene if necessary
MPlug pGLPreview( sceneShape->thisMObject(), SceneShape::aDrawGeometry );
bool glPreview;
pGLPreview.getValue( glPreview );
if( glPreview || drawAllBounds )
{
if( info.displayStyle()==M3dView::kGouraudShaded || info.displayStyle()==M3dView::kFlatShaded )
{
// make a request for solid drawing with a material
MDrawRequest solidRequest = info.getPrototype( *this );
solidRequest.setDrawData( drawData );
MDagPath path = info.multiPath();
M3dView view = info.view();
MMaterial material = MPxSurfaceShapeUI::material( path );
if( !material.evaluateMaterial( view, path ) )
{
MString pathName = path.fullPathName();
IECore::msg( IECore::Msg::Warning, "SceneShapeUI::getDrawRequests", boost::format( "Failed to evaluate material for \"%s\"." ) % pathName.asChar() );
}
if( material.materialIsTextured() )
{
material.evaluateTexture( drawData );
}
solidRequest.setMaterial( material );
// set the transparency request. we don't have a decent way of finding out
// if shaders applied by the procedural are transparent, so we've got a transparency
// attribute on the procedural holder for users to use. maya materials may also say
// they're transparent. if either asks for transparency then we'll ask for it here
bool transparent = false;
material.getHasTransparency( transparent );
solidRequest.setIsTransparent( transparent );
solidRequest.setToken( SceneDrawMode );
requests.add( solidRequest );
if( info.displayStatus()==M3dView::kActive || info.displayStatus()==M3dView::kLead || info.displayStatus()==M3dView::kHilite )
{
MDrawRequest wireRequest = info.getPrototype( *this );
wireRequest.setDrawData( drawData );
wireRequest.setDisplayStyle( M3dView::kWireFrame );
wireRequest.setToken( SceneDrawMode );
setWireFrameColors( wireRequest, info.displayStatus() );
wireRequest.setComponent( MObject::kNullObj );
if ( !objectAndActiveOnly )
{
if ( sceneShape->hasActiveComponents() )
{
MObjectArray components = sceneShape->activeComponents();
MObject component = components[0];
wireRequest.setComponent( component );
}
}
requests.add( wireRequest );
}
}
else
{
MDrawRequest request = info.getPrototype( *this );
request.setDrawData( drawData );
setWireFrameColors( request, info.displayStatus() );
request.setToken( SceneDrawMode );
request.setComponent( MObject::kNullObj );
if ( !objectAndActiveOnly )
{
if ( sceneShape->hasActiveComponents() )
{
MObjectArray components = sceneShape->activeComponents();
MObject component = components[0];
request.setComponent( component );
}
}
requests.add( request );
}
}
}