update PointSprite shader + change selected points rendering in surface deformation plugin

Apps/Examples/viewer.cpp

@@ -114,6 +114,7 @@ void Viewer::cb_initGL()
 
 	m_pointSprite = new Utils::PointSprite() ;
 	m_pointSprite->setAttributePosition(m_positionVBO) ;
+	m_pointSprite->setColor(Geom::Vec4f(0.0f, 0.0f, 1.0f, 1.0f)) ;
 
 	registerShader(m_phongShader) ;
 	registerShader(m_flatShader) ;
@@ -126,11 +127,8 @@ void Viewer::cb_redraw()
 {
 	if(m_drawVertices)
 	{
-		float size = vertexScaleFactor ;
-		m_pointSprite->setSize(size) ;
-		m_pointSprite->predraw(Geom::Vec4f(0.0f, 0.0f, 1.0f, 1.0f)) ;
+		m_pointSprite->setSize(vertexScaleFactor) ;
 		m_render->draw(m_pointSprite, Algo::Render::GL2::POINTS) ;
-		m_pointSprite->postdraw() ;
 	}
 
 	if(m_drawEdges)

Apps/Tuto/tuto5.cpp

@@ -129,6 +129,7 @@ void MyQT::cb_initGL()
 
 	m_sprite = new Utils::PointSprite();
 	m_sprite->setAttributePosition(m_positionVBO);
+	m_sprite->setColor(Geom::Vec4f(1.0f, 0.0f , 0.0f, 1.0f));
 
     m_strings = new Utils::Strings3D(true, Geom::Vec3f(0.1f,0.0f,0.3f));
     storeVerticesInfo();
@@ -200,9 +201,7 @@ void MyQT::cb_redraw()
 
 	if (render_balls)
 	{
-		m_sprite->predraw(Geom::Vec4f(1.0f, 0.0f , 0.0f, 1.0f));
 		m_render->draw(m_sprite, Algo::Render::GL2::POINTS);
-		m_sprite->postdraw();
 	}
 
 	if (render_vectors)

SCHNApps/Plugins/render/src/render.cpp

@@ -99,9 +99,8 @@ void RenderPlugin::redraw(View* view)
 			{
 				m_pointSprite->setSize(m->getBBdiagSize() / 200.0f * p->verticesScaleFactor);
 				m_pointSprite->setAttributePosition(p->positionVBO);
-				m_pointSprite->predraw(CGoGN::Geom::Vec4f(0.0f, 0.0f, 1.0f, 1.0f));
+				m_pointSprite->setColor(CGoGN::Geom::Vec4f(0.0f, 0.0f, 1.0f, 1.0f));
 				m->draw(m_pointSprite, CGoGN::Algo::Render::GL2::POINTS);
-				m_pointSprite->postdraw();
 			}
 			if(p->renderEdges)
 			{

SCHNApps/Plugins/surfaceDeformation/include/surfaceDeformation.h

 #ifndef _SURFACEDEFORMATION_PLUGIN_H_
 #define _SURFACEDEFORMATION_PLUGIN_H_
 
-#include "Utils/drawer.h"
-
 #include "plugin.h"
 #include "surfaceDeformationDockTab.h"
 
@@ -45,8 +43,11 @@ struct PerMapParameterSet
 	CellMarker<VERTEX>* lockingMarker;
 	CellMarker<VERTEX>* handleMarker;
 	SelectionMode verticesSelectionMode;
-	std::vector<unsigned int> locked_vertices;
-	std::vector<unsigned int> handle_vertices;
+	std::vector<PFP2::VEC3> lockedVertices;
+	std::vector<PFP2::VEC3> handleVertices;
+	std::vector<unsigned int> handleVerticesId;
+	Utils::VBO* lockedVerticesVBO;
+	Utils::VBO* handleVerticesVBO;
 
 	VertexAttribute<PFP2::VEC3> positionInit;
 	VertexAttribute<PFP2::VEC3> vertexNormal;
@@ -113,7 +114,6 @@ protected:
 	QHash<View*, ParameterSet*> h_viewParams;
 
 	Utils::PointSprite* m_pointSprite;
-	Utils::Drawer* m_drawer;
 
 	Utils::VBO* selectionSphereVBO;
 

SCHNApps/Plugins/surfaceDeformation/src/surfaceDeformation.cpp

@@ -39,6 +39,9 @@ PerMapParameterSet::PerMapParameterSet(MapHandlerGen* m) :
 	lockingMarker = new CellMarker<VERTEX>(*map);
 	handleMarker = new CellMarker<VERTEX>(*map);
 
+	lockedVerticesVBO = new Utils::VBO();
+	handleVerticesVBO = new Utils::VBO();
+
 	positionInit = mh->getAttribute<PFP2::VEC3, VERTEX>("positionInit", false) ;
 	if(!positionInit.isValid())
 		positionInit = mh->addAttribute<PFP2::VEC3, VERTEX>("positionInit", false) ;
@@ -74,6 +77,8 @@ PerMapParameterSet::~PerMapParameterSet()
 {
 	delete lockingMarker;
 	delete handleMarker;
+	delete lockedVerticesVBO;
+	delete handleVerticesVBO;
 	nlDeleteContext(nlContext);
 }
 
@@ -115,9 +120,6 @@ bool SurfaceDeformationPlugin::enable()
 	m_pointSprite = new CGoGN::Utils::PointSprite();
 	registerShader(m_pointSprite);
 
-	m_drawer = new Utils::Drawer();
-	registerShader(m_drawer->getShader());
-
 	connect(m_window, SIGNAL(viewAndPluginLinked(View*, Plugin*)), this, SLOT(viewLinked(View*, Plugin*)));
 	connect(m_window, SIGNAL(viewAndPluginUnlinked(View*, Plugin*)), this, SLOT(viewUnlinked(View*, Plugin*)));
 	connect(m_window, SIGNAL(currentViewChanged(View*)), this, SLOT(currentViewChanged(View*)));
@@ -128,20 +130,54 @@ bool SurfaceDeformationPlugin::enable()
 void SurfaceDeformationPlugin::disable()
 {
 	delete m_pointSprite;
-	delete m_drawer;
 }
 
 void SurfaceDeformationPlugin::redraw(View* view)
 {
+	ParameterSet* params = h_viewParams[view];
+	MapHandlerGen* mh = params->selectedMap;
+	if(mh)
+	{
+		PerMapParameterSet* perMap = params->perMap[mh->getName()];
+
+		if(!perMap->lockedVertices.empty() || !perMap->handleVertices.empty())
+		{
+			m_pointSprite->setAttributePosition(perMap->lockedVerticesVBO);
+			m_pointSprite->setSize(mh->getBBdiagSize() / 250.0f);
+			m_pointSprite->setColor(CGoGN::Geom::Vec4f(1.0f, 0.0f, 0.0f, 0.75f));
+			m_pointSprite->setLightPosition(CGoGN::Geom::Vec3f(0.0f, 0.0f, 1.0f));
+
+			m_pointSprite->enableVertexAttribs();
+			glEnable(GL_BLEND);
+			glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+			glDrawArrays(GL_POINTS, 0, perMap->lockedVertices.size());
+			glDisable(GL_BLEND);
+			m_pointSprite->disableVertexAttribs();
+
+			m_pointSprite->setAttributePosition(perMap->handleVerticesVBO);
+			m_pointSprite->setSize(mh->getBBdiagSize() / 250.0f);
+			m_pointSprite->setColor(CGoGN::Geom::Vec4f(0.0f, 1.0f, 0.0f, 0.75f));
+			m_pointSprite->setLightPosition(CGoGN::Geom::Vec3f(0.0f, 0.0f, 1.0f));
+
+			m_pointSprite->enableVertexAttribs();
+			glEnable(GL_BLEND);
+			glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+			glDrawArrays(GL_POINTS, 0, perMap->handleVertices.size());
+			glDisable(GL_BLEND);
+			m_pointSprite->disableVertexAttribs();
+		}
+	}
+
 	if(selecting)
 	{
 		std::vector<PFP2::VEC3> selectionPoint;
 		selectionPoint.push_back(selectionCenter);
 		selectionSphereVBO->updateData(selectionPoint);
 
-		m_pointSprite->setSize(selectionRadius);
 		m_pointSprite->setAttributePosition(selectionSphereVBO);
-		m_pointSprite->predraw(CGoGN::Geom::Vec4f(0.0f, 0.0f, 1.0f, 0.5f));
+		m_pointSprite->setSize(selectionRadius);
+		m_pointSprite->setColor(CGoGN::Geom::Vec4f(0.0f, 0.0f, 1.0f, 0.5f));
+		m_pointSprite->setLightPosition(CGoGN::Geom::Vec3f(0.0f, 0.0f, 1.0f));
 
 		m_pointSprite->enableVertexAttribs();
 		glEnable(GL_BLEND);
@@ -149,34 +185,6 @@ void SurfaceDeformationPlugin::redraw(View* view)
 		glDrawArrays(GL_POINTS, 0, 1);
 		glDisable(GL_BLEND);
 		m_pointSprite->disableVertexAttribs();
-
-		m_pointSprite->postdraw();
-	}
-
-	ParameterSet* params = h_viewParams[view];
-	MapHandlerGen* mh = params->selectedMap;
-	if(mh)
-	{
-		PerMapParameterSet* perMap = params->perMap[mh->getName()];
-
-		if(!perMap->locked_vertices.empty() || !perMap->handle_vertices.empty())
-		{
-			glDisable(GL_LIGHTING) ;
-			m_drawer->newList(GL_COMPILE_AND_EXECUTE) ;
-			m_drawer->pointSize(4.0f) ;
-			m_drawer->begin(GL_POINTS) ;
-			m_drawer->color3f(1.0f, 0.0f, 0.0f) ;
-			for(unsigned int i = 0; i < perMap->locked_vertices.size(); ++i)
-			{
-				if (!perMap->handleMarker->isMarked(perMap->locked_vertices[i]))
-					m_drawer->vertex(perMap->positionAttribute[perMap->locked_vertices[i]]) ;
-			}
-			m_drawer->color3f(0.0f, 0.0f, 1.0f) ;
-			for(unsigned int i = 0; i < perMap->handle_vertices.size(); ++i)
-				m_drawer->vertex(perMap->positionAttribute[perMap->handle_vertices[i]]) ;
-			m_drawer->end() ;
-			m_drawer->endList() ;
-		}
 	}
 }
 
@@ -229,29 +237,31 @@ void SurfaceDeformationPlugin::mousePress(View* view, QMouseEvent* event)
 			PFP2::VEC3 rayA(orig.x, orig.y, orig.z);
 			PFP2::VEC3 AB(dir.x, dir.y, dir.z);
 
-			Dart d ;
+			Dart d;
 			PFP2::MAP* map = static_cast<MapHandler<PFP2>*>(params->selectedMap)->getMap();
-			Algo::Selection::vertexRaySelection<PFP2>(*map, perMap->positionAttribute, rayA, AB, d) ;
+			Algo::Selection::vertexRaySelection<PFP2>(*map, perMap->positionAttribute, rayA, AB, d);
 
 			if(d != NIL)
 			{
-				Algo::Surface::Selection::Collector_WithinSphere<PFP2> neigh(*map, perMap->positionAttribute, selectionRadius) ;
-				neigh.collectAll(d) ;
-				const std::vector<Dart>& insideV = neigh.getInsideVertices() ;
+				Algo::Surface::Selection::Collector_WithinSphere<PFP2> neigh(*map, perMap->positionAttribute, selectionRadius);
+				neigh.collectAll(d);
+				const std::vector<Dart>& insideV = neigh.getInsideVertices();
 
 				for(unsigned int i = 0; i < insideV.size(); ++i)
 				{
-					unsigned int v = map->getEmbedding<VERTEX>(insideV[i]) ;
+					unsigned int v = map->getEmbedding<VERTEX>(insideV[i]);
 					if (!perMap->lockingMarker->isMarked(v))
 					{
-						perMap->locked_vertices.push_back(v) ;
+						if(perMap->verticesSelectionMode == LOCKED)
+							perMap->lockedVertices.push_back(perMap->positionAttribute[v]);
 						perMap->lockingMarker->mark(v);
 					}
 					if(perMap->verticesSelectionMode == HANDLE)
 					{
 						if(!perMap->handleMarker->isMarked(v))
 						{
-							perMap->handle_vertices.push_back(v) ;
+							perMap->handleVertices.push_back(perMap->positionAttribute[v]);
+							perMap->handleVerticesId.push_back(v);
 							perMap->handleMarker->mark(v);
 						}
 					}
@@ -260,6 +270,10 @@ void SurfaceDeformationPlugin::mousePress(View* view, QMouseEvent* event)
 				nlMakeCurrent(perMap->nlContext) ;
 				nlReset(NL_FALSE) ;
 
+				perMap->lockedVerticesVBO->updateData(perMap->lockedVertices);
+				if(perMap->verticesSelectionMode == HANDLE)
+					perMap->handleVerticesVBO->updateData(perMap->handleVertices);
+
 				view->updateGL() ;
 			}
 		}
@@ -277,13 +291,13 @@ void SurfaceDeformationPlugin::mousePress(View* view, QMouseEvent* event)
 			dragging = true ;
 
 			dragZ = 0;
-			for(unsigned int i = 0; i < perMap->handle_vertices.size(); ++i)
+			for(unsigned int i = 0; i < perMap->handleVertices.size(); ++i)
 			{
-				const PFP2::VEC3& p = perMap->positionAttribute[perMap->handle_vertices[i]] ;
+				const PFP2::VEC3& p = perMap->handleVertices[i] ;
 				qglviewer::Vec q = view->camera()->projectedCoordinatesOf(qglviewer::Vec(p[0],p[1],p[2]));
 				dragZ += q.z ;
 			}
-			dragZ /= perMap->handle_vertices.size() ;
+			dragZ /= perMap->handleVertices.size() ;
 
 			qglviewer::Vec p(event->x(), event->y(), dragZ);
 			dragPrevious = view->camera()->unprojectedCoordinatesOf(p);
@@ -294,9 +308,7 @@ void SurfaceDeformationPlugin::mousePress(View* view, QMouseEvent* event)
 void SurfaceDeformationPlugin::mouseRelease(View* view, QMouseEvent* event)
 {
 	if(event->button() == Qt::RightButton)
-	{
-		dragging = false ;
-	}
+		dragging = false;
 }
 
 void SurfaceDeformationPlugin::mouseMove(View* view, QMouseEvent* event)
@@ -313,10 +325,14 @@ void SurfaceDeformationPlugin::mouseMove(View* view, QMouseEvent* event)
 
 			qglviewer::Vec vec = q - dragPrevious;
 			PFP2::VEC3 t(vec.x, vec.y, vec.z);
-			for(unsigned int i = 0; i < perMap->handle_vertices.size(); ++i)
-				perMap->positionAttribute[perMap->handle_vertices[i]] += t ;
+			for(unsigned int i = 0; i < perMap->handleVertices.size(); ++i)
+			{
+				perMap->handleVertices[i] += t;
+				perMap->positionAttribute[perMap->handleVerticesId[i]] += t;
+			}
+			perMap->handleVerticesVBO->updateData(perMap->handleVertices);
 
-			dragPrevious = q ;
+			dragPrevious = q;
 
 //			matchDiffCoord(view, map);
 			asRigidAsPossible(view, params->selectedMap);
@@ -335,13 +351,13 @@ void SurfaceDeformationPlugin::mouseMove(View* view, QMouseEvent* event)
 			PFP2::VEC3 rayA(orig.x, orig.y, orig.z);
 			PFP2::VEC3 AB(dir.x, dir.y, dir.z);
 
-			Dart d ;
+			Dart d;
 			PFP2::MAP* map = static_cast<MapHandler<PFP2>*>(params->selectedMap)->getMap();
-			Algo::Selection::vertexRaySelection<PFP2>(*map, perMap->positionAttribute, rayA, AB, d) ;
+			Algo::Selection::vertexRaySelection<PFP2>(*map, perMap->positionAttribute, rayA, AB, d);
 			if(d != NIL)
 			{
-				selectionCenter = perMap->positionAttribute[d] ;
-				view->updateGL() ;
+				selectionCenter = perMap->positionAttribute[d];
+				view->updateGL();
 			}
 		}
 	}

include/Utils/Shaders/shaderScalarField.h

@@ -46,13 +46,13 @@ protected:
 	CGoGNGLuint m_uniform_maxValue;
 	CGoGNGLuint m_uniform_expansion;
 
+	VBO* m_vboPos;
+	VBO* m_vboScal;
+
 	float m_minValue;
 	float m_maxValue;
 	int m_expansion;
 
-    VBO* m_vboPos;
-    VBO* m_vboScal;
-
 	void getLocations();
 
 	void sendParams();

include/Utils/pointSprite.frag

@@ -4,15 +4,16 @@ uniform mat4 ProjectionMatrix;
 uniform vec3 lightPos;
 uniform vec3 ambiant;
 uniform float size;
+
 #ifdef WITH_PLANE
-	uniform vec3 eyePos;
-	VARYING_FRAG vec3 shiftedEye;
+uniform vec3 eyePos;
+VARYING_FRAG vec3 shiftedEye;
 #endif
 
 #ifdef WITH_COLOR_PER_VERTEX 
-	VARYING_FRAG vec3 colorsprite;
+VARYING_FRAG vec4 colorsprite;
 #else
-	uniform vec4 colorsprite;
+uniform vec4 colorsprite;
 #endif
 
 VARYING_FRAG vec2 spriteCoord;
@@ -43,7 +44,6 @@ void main(void)
 	vec3 frag_position_eye = ray_direction * t ;
 #endif	
 
-
 	vec4 pos = ProjectionMatrix * vec4(frag_position_eye, 1.0);
 	gl_FragDepth = (pos.z / pos.w + 1.0) / 2.0;
 

include/Utils/pointSprite.geom

@@ -3,40 +3,40 @@
 uniform float size;
 uniform mat4 ModelViewMatrix;
 uniform mat4 ProjectionMatrix;
+
 #ifdef WITH_PLANE
-	uniform vec3 eyePos;
-	VARYING_OUT vec3 shiftedEye;
+uniform vec3 eyePos;
+VARYING_OUT vec3 shiftedEye;
 #endif
 
 VARYING_OUT vec2 spriteCoord;
 VARYING_OUT vec3 sphereCenter;
 
 #ifdef WITH_COLOR_PER_VERTEX 
-	VARYING_IN vec3 color[1];
-	VARYING_OUT vec3 colorsprite;
+VARYING_IN vec4 color[1];
+VARYING_OUT vec4 colorsprite;
 #endif
 
 #ifdef WITH_PLANE
-	void corner( vec4 center, vec3 planeX, vec3 planeY, float x, float y)
-	{
-		spriteCoord = vec2(x,y);
-		vec4 pos = center + size*( x*vec4(planeX,0.0) + y*vec4(planeY,0.0)+ vec4(0.0,0.0,0.5,0.0)); 
-		gl_Position = ProjectionMatrix *  pos;
-		EmitVertex();
-	}
+void corner( vec4 center, vec3 planeX, vec3 planeY, float x, float y)
+{
+	spriteCoord = vec2(x,y);
+	vec4 pos = center + size*( x*vec4(planeX,0.0) + y*vec4(planeY,0.0)+ vec4(0.0,0.0,0.5,0.0));
+	gl_Position = ProjectionMatrix *  pos;
+	EmitVertex();
+}
 #else
-	void corner( vec4 center, float x, float y)
-	{
-		spriteCoord = vec2(x,y);
-		vec4 pos = center + vec4(size*x, size*y, 0.0, 0.0);
-		gl_Position = ProjectionMatrix *  pos;
-		EmitVertex();
-	}
+void corner( vec4 center, float x, float y)
+{
+	spriteCoord = vec2(x,y);
+	vec4 pos = center + vec4(size*x, size*y, 0.0, 0.0);
+	gl_Position = ProjectionMatrix *  pos;
+	EmitVertex();
+}
 #endif
 
 void main()
 {
-
 #ifdef WITH_COLOR_PER_VERTEX 
 	colorsprite = color[0];
 #endif
@@ -63,6 +63,7 @@ void main()
 	corner(posCenter,  1.4, 1.4);
 	corner(posCenter,  1.4,-1.4);
 #endif	
+
 	EndPrimitive();
 }
 

include/Utils/pointSprite.h

@@ -36,100 +36,66 @@ namespace CGoGN
 namespace Utils
 {
 
-class PointSprite: public Utils::GLSLShader
+class PointSprite : public Utils::GLSLShader
 {
 protected:
-	static const unsigned int WIDTHSPRITE = 64;
-
 	static std::string vertexShaderText;
-
 	static std::string geometryShaderText;
-
 	static std::string fragmentShaderText;
 
-	static unsigned char* m_ptrSphere;
-
-	static PointSprite* m_instance0;
-
-	// compute the sphere instead of storing it in image file.
-	static void computeSphere();
+	bool colorPerVertex;
+	bool plane;
 
 	CGoGNGLuint m_uniform_size;
-
 	CGoGNGLuint m_uniform_color;
-
-	CGoGNGLuint m_idTexture;
-
-	CGoGNGLuint m_uniform_texture;
-	
-	CGoGNGLuint m_uniform_EyePos;
-	
-//	CGoGNGLuint m_uniform_EyeY;
-
 	CGoGNGLuint m_uniform_ambiant;
-
 	CGoGNGLuint m_uniform_lightPos;
+	CGoGNGLuint m_uniform_eyePos;
 
-public:
-	/**
-	 * init shaders, texture and variables
-	 * @param withColorPerVertex if true use setAttributeColor for per vertex color, else use predraw(color) for global color
-	 * @param radius of sphere
-	 */
-
-	PointSprite(bool withColorPerVertex=false, float radius=1.0f, bool with_plane=false);
+	VBO* m_vboPos;
+	VBO* m_vboColor;
 
-	/**
-	 * clean shaders, texture and variables
-	 */
-	~PointSprite();
+	float m_size;
+	Geom::Vec4f m_color;
+	Geom::Vec3f m_lightPos;
+	Geom::Vec3f m_ambiant;
+	Geom::Vec3f m_eyePos;
 
-	/**
-	 * call once before sending points to gpu
-	 * @param color set global color of sprites
-	 */
-	void predraw(const Geom::Vec4f& color);
+	void getLocations();
 
-	/**
-	 * call once before sending points to gpu
-	 */
-	void predraw();
+	void sendParams();
 
-	/**
-	 * call once after sending points to gpu
-	 */
-	void postdraw();
+	void restoreUniformsAttribs();
 
+public:
 	/**
-	 * set the radius of sphere
-	 * @param radius
+	 * init shaders & variables
+	 * @param withColorPerVertex if true use setAttributeColor for per vertex color, else use setColor(color) for global color
+	 * @param withPlane
 	 */
-	void setSize(float radius);
-	
-	/**
-	* set the plane of rendering for VR rendering
-	*/
-	void setEyePosition(const Geom::Vec3f& ep);
+	PointSprite(bool withColorPerVertex = false, bool withPlane = false);
 
-
-	/**
-	 * set position attribute
-	 */
 	unsigned int setAttributePosition(VBO* vbo);
 
-	/**
-	 * set color attribute
-	 */
 	unsigned int setAttributeColor(VBO* vbo);
 
+	void setSize(float size);
+
+	void setColor(const Geom::Vec4f& color);
 
 	void setLightPosition(const Geom::Vec3f& pos);
 
 	void setAmbiantColor(const Geom::Vec3f& amb);
+	
+	/**
+	* set the plane of rendering for VR rendering
+	*/
+	void setEyePosition(const Geom::Vec3f& ep);
 
 };
 
 } // namespace Utils
 
 } // namespace CGoGN
+
 #endif

include/Utils/pointSprite.vert

@@ -2,14 +2,14 @@
 
 ATTRIBUTE vec3 VertexPosition;
 #ifdef WITH_COLOR_PER_VERTEX 
-	ATTRIBUTE vec3 VertexColor;
-	VARYING_VERT vec3 color;
+	ATTRIBUTE vec4 VertexColor;
+	VARYING_VERT vec4 color;
 #endif
 
 void main ()
 {
-	gl_Position = vec4(VertexPosition,1.0);
+	gl_Position = vec4(VertexPosition, 1.0);
 #ifdef WITH_COLOR_PER_VERTEX 
-	color = VertexColor; //VertexColor;
+	color = VertexColor;
 #endif
 }

src/Utils/Shaders/shaderScalarField.cpp

@@ -33,12 +33,11 @@ namespace Utils
 #include "shaderScalarField.vert"
 #include "shaderScalarField.frag"
 
-ShaderScalarField::ShaderScalarField()
+ShaderScalarField::ShaderScalarField() :
+	m_minValue(0.0f),
+	m_maxValue(0.0f),
+	m_expansion(0)
 {
-	m_nameVS = "ShaderColorPerVertex_vs";
-	m_nameFS = "ShaderColorPerVertex_fs";
-	m_nameGS = "ShaderColorPerVertex_gs";
-
 	std::string glxvert(*GLSLShader::DEFINES_GL);
 	glxvert.append(vertexShaderText);
 
@@ -90,30 +89,33 @@ unsigned int ShaderScalarField::setAttributeScalar(VBO* vbo)
 
 void ShaderScalarField::setMinValue(float f)
 {
+	m_minValue = f;
 	bind();