topoRender GL3 compatible

CGoGN/include/Algo/Render/GL2/topoRender.h

@@ -36,7 +36,10 @@
 #include "Utils/vbo_base.h"
 #include "Utils/svg.h"
 
-#include "Utils/Shaders/shaderSimpleColor.h"
+//#include "Utils/Shaders/shaderSimpleColor.h"
+
+#include "Utils/Shaders/shaderBoldLines.h"
+#include "Utils/Shaders/shaderDarts.h"
 
 
 #ifdef WIN32
@@ -79,7 +82,8 @@ protected:
 	Utils::VBO* m_vbo2;
 
 
-	unsigned int m_vaId;
+	unsigned int m_vaId1;
+	unsigned int m_vaId2;
 
 	/**
 	*number of darts to draw
@@ -121,7 +125,11 @@ protected:
 
 	Geom::Vec3f* m_bufferDartPosition;
 
-	Utils::ShaderSimpleColor* m_shader1;
+	//Utils::ShaderSimpleColor* m_shader1;
+	//Utils::ShaderPointsLines* m_shader2;
+
+	Utils::ShaderDarts* m_shader1;
+	Utils::ShaderBoldLines* m_shader2;
 
 	bool m_sharedShaders;
 
@@ -164,13 +172,16 @@ protected:
 
 
 public:
+
+	static void createShaders(std::vector<Utils::GLSLShader*>& shaders);
+
 	/**
 	* Constructor
 	* @param bs shift for boundary drawing
 	*/
 	TopoGenRender(float bs = 0.01f);
 
-	TopoGenRender(Utils::ShaderSimpleColor* ssc, float bs = 0.01f);
+	TopoGenRender(const std::vector<Utils::GLSLShader*>& shaders, float bs = 0.01f);
 
 	/**
 	* Destructor
@@ -221,7 +232,9 @@ public:
 	/**
 	 * get shader objects
 	 */
-	Utils::GLSLShader* shader1() { return static_cast<Utils::GLSLShader*>(m_shader1); }
+	//Utils::GLSLShader* shader1() { return static_cast<Utils::GLSLShader*>(m_shader1); }
+	std::vector<Utils::GLSLShader*> shaders();
+
 
 
 	/**
@@ -308,7 +321,7 @@ public:
 	*/
 	TopoRender(float bs = 0.01f): TopoGenRender(bs) {}
 
-	TopoRender(Utils::ShaderSimpleColor* ssc, float bs = 0.01f) :TopoGenRender(ssc,bs) {}
+	TopoRender(const std::vector<Utils::GLSLShader*>& shaders, float bs = 0.01f) : TopoGenRender(shaders, bs) {}
 
 	/**
 	* Destructor

CGoGN/include/Algo/Render/GL2/topoRender.hpp

@@ -36,7 +36,7 @@
 #include "Algo/Geometry/normal.h"
 
 #include "Container/containerBrowser.h"
-#include "Utils/Shaders/shaderColorPerVertex.h"
+#include "Utils/Shaders/shaderColorDarts.h"
 
 namespace CGoGN
 {
@@ -60,19 +60,12 @@ void TopoRender::overdrawDart(MAP& map, Dart d, float width, float r, float g, f
 	if (!attIndex.isValid())
 		attIndex  = map.template addAttribute<unsigned int, DART, MAP>(m_nameIndex);
 
-
 	unsigned int indexDart = attIndex[d];
 
-	m_shader1->changeVA_VBO(m_vaId, m_vbo0);
 	m_shader1->setColor(Geom::Vec4f(r,g,b,0.0f));
+	m_shader1->setLineWidth(width);
 	m_shader1->enableVertexAttribs();
-
-	glLineWidth(width);
 	glDrawArrays(GL_LINES, indexDart, 2);
-
-	glPointSize(2.0f*width);
-	glDrawArrays(GL_POINTS, indexDart, 1);
-
 	m_shader1->disableVertexAttribs();
 }
 
@@ -84,25 +77,16 @@ void TopoRender::drawColoredDarts(MAP& map)
 	if (!attIndex.isValid())
 		return;
 
-	glLineWidth(m_topo_dart_width);
-	float ps = 2.0f*m_topo_dart_width;
-
-	m_shader1->changeVA_VBO(m_vaId, m_vbo0);
 	m_shader1->enableVertexAttribs();
-
 	for (auto it=m_coloredDarts.begin(); it != m_coloredDarts.end(); ++it)
 	{
 		unsigned int indexDart = attIndex[it->d];
 
-		m_shader1->setColor(Geom::Vec4f(it->r,it->g,it->b,0.0f));
-		m_shader1->enableVertexAttribs();
+		m_shader1->directColor(Geom::Vec4f(it->r,it->g,it->b,0.0f));
+//		m_shader1->bind(); // because of unbind, do a set color without bind/unbind
 		glDrawArrays(GL_LINES, indexDart, 2);
-
-		glPointSize(ps);
-		glDrawArrays(GL_POINTS, indexDart, 1);
 	}
 	m_shader1->disableVertexAttribs();
-
 }
 
 
@@ -528,53 +512,40 @@ Dart TopoRender::picking(MAP& map,int x, int y, bool withBoundary)
 	}
 	glUnmapBuffer(GL_ARRAY_BUFFER);
 
-
-	Utils::ShaderColorPerVertex shaderCol;
+	Utils::ShaderColorDarts shaderCol;
 	shaderCol.setAttributePosition(m_vbo0);
 	shaderCol.setAttributeColor(&vboCol);
 	shaderCol.updateMatrices(m_shader1);
 
-	float dw = m_topo_dart_width;
-	m_topo_dart_width+=2;
-
 	// save clear color and set to zero
 	float cc[4];
 	glGetFloatv(GL_COLOR_CLEAR_VALUE,cc);
 
+	bool multi = glIsEnabled(GL_MULTISAMPLE);
+	if (multi)
+		glDisable(GL_MULTISAMPLE);
+
 	glClearColor(0.0f,0.0f,0.0f,0.0f);
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
-	glDisable(GL_LIGHTING);
-	// draw in back buffer (not shown on screen)
-
+	shaderCol.setLineWidth(m_topo_dart_width + 2);
 	shaderCol.enableVertexAttribs();
-
-	glLineWidth(m_topo_dart_width);
 	glDrawArrays(GL_LINES, 0, m_nbDarts*2);
-
-	// change the stride to take 1/2 vertices
-	shaderCol.enableVertexAttribs(6*sizeof(GL_FLOAT));
-
-	glPointSize(2.0f*m_topo_dart_width);
-	glDrawArrays(GL_POINTS, 0, m_nbDarts);
-
 	shaderCol.disableVertexAttribs();
 
-	// restore dart width
-	m_topo_dart_width = dw;
-
 	// read the pixel under the mouse in back buffer
 	glReadBuffer(GL_BACK);
 	float color[3];
 	glReadPixels(x,y,1,1,GL_RGB,GL_FLOAT,color);
 
+	if (multi)
+		glEnable(GL_MULTISAMPLE);
+
 	glClearColor(cc[0], cc[1], cc[2], cc[3]);
 
 	Dart d = colToDart(color);
-
 	return d;
 
-
 }
 
 

CGoGN/include/Utils/Shaders/shaderBold3DColorLines.h

@@ -26,7 +26,7 @@
 #define __CGOGN_SHADER_BOLD3DCOLORLINES__
 
 #include "Utils/GLSLShader.h"
-#include "Utils/clippingShader.h"
+#include "Utils/Shaders/shaderPointsLines.h"
 #include "Geometry/vector_gen.h"
 
 #include "Utils/dll.h"
@@ -37,7 +37,7 @@ namespace CGoGN
 namespace Utils
 {
 
-class CGoGN_UTILS_API ShaderBold3DColorLines : public ClippingShader
+class CGoGN_UTILS_API ShaderBold3DColorLines : public ShaderPointsLines
 {
 protected:
 	// shader sources

CGoGN/include/Utils/Shaders/shaderBold3DLines.h

@@ -26,7 +26,7 @@
 #define __CGOGN_SHADER_BOLD3DLINES__
 
 #include "Utils/GLSLShader.h"
-#include "Utils/clippingShader.h"
+#include "Utils/Shaders/shaderPointsLines.h"
 #include "Geometry/vector_gen.h"
 
 #include "Utils/dll.h"
@@ -37,7 +37,7 @@ namespace CGoGN
 namespace Utils
 {
 
-class CGoGN_UTILS_API ShaderBold3DLines : public ClippingShader
+class CGoGN_UTILS_API ShaderBold3DLines : public ShaderPointsLines
 {
 protected:
 	// shader sources

CGoGN/include/Utils/Shaders/shaderBoldColorLines.geom

@@ -14,7 +14,6 @@ void main()
 	vec4 A = POSITION_IN(0);
 	vec4 B = POSITION_IN(1);
 	
-//	float nearZ = - ProjectionMatrix[3][2] / (ProjectionMatrix[2][2] - 1.0); 
 	float nearZ = 1.0;
 	if (ProjectionMatrix[2][2] !=  1.0)
 		nearZ = - ProjectionMatrix[3][2] / (ProjectionMatrix[2][2] - 1.0); 
@@ -36,11 +35,13 @@ void main()
 		vec3 U = vec3(lineWidths*U2,0.0);
 		vec3 V = vec3(lineWidths*vec2(U2[1], -U2[0]), 0.0);
 
-		U2 *= (lineWidths[0]+lineWidths[1])/4.0;
+//		U2 *= (lineWidths[0]+lineWidths[1])/2.0;
 		
 		fragClip = posClip[0];
 		fragColor = vcolor[0];
-		A -= vec4(U2,0.0,0.0);
+//		A -= vec4(U2,0.0,0.0);
+		gl_Position = vec4(A.xyz-U, 1.0);
+		EmitVertex();
 		gl_Position = vec4(A.xyz+V, 1.0);
 		EmitVertex();
 		gl_Position = vec4(A.xyz-V, 1.0);
@@ -48,11 +49,13 @@ void main()
 
 		fragClip = posClip[1];
 		fragColor = vcolor[1];
-		B += vec4(U2,0.0,0.0);
+//		B += vec4(U2,0.0,0.0);
 		gl_Position = vec4(B.xyz+V, 1.0);
 		EmitVertex();
 		gl_Position = vec4(B.xyz-V, 1.0);
 		EmitVertex();
+		gl_Position = vec4(B.xyz+U, 1.0);
+		EmitVertex();
 		
 		EndPrimitive();
 	}

CGoGN/include/Utils/Shaders/shaderBoldColorLines.h

@@ -26,7 +26,7 @@
 #define __CGOGN_SHADER_BOLDCOLORLINES__
 
 #include "Utils/GLSLShader.h"
-#include "Utils/clippingShader.h"
+#include "Utils/Shaders/shaderPointsLines.h"
 #include "Geometry/vector_gen.h"
 
 #include "Utils/dll.h"
@@ -37,7 +37,7 @@ namespace CGoGN
 namespace Utils
 {
 
-class CGoGN_UTILS_API ShaderBoldColorLines : public ClippingShader
+class CGoGN_UTILS_API ShaderBoldColorLines : public ShaderPointsLines
 {
 protected:
 	// shader sources

CGoGN/include/Utils/Shaders/shaderBoldLines.geom

@@ -30,22 +30,21 @@ void main()
 		vec3 U = vec3(lineWidths*U2,0.0);
 		vec3 V = vec3(lineWidths*vec2(U2[1], -U2[0]), 0.0);
 
-		U2 *= (lineWidths[0]+lineWidths[1])/4.0;
-		
 		fragClip = posClip[0];
-		A -= vec4(U2,0.0,0.0);
+		gl_Position = vec4(A.xyz-U, 1.0);
+		EmitVertex();
 		gl_Position = vec4(A.xyz+V, 1.0);
 		EmitVertex();
 		gl_Position = vec4(A.xyz-V, 1.0);
 		EmitVertex();
 
 		fragClip = posClip[1];
-		B += vec4(U2,0.0,0.0);
 		gl_Position = vec4(B.xyz+V, 1.0);
 		EmitVertex();
 		gl_Position = vec4(B.xyz-V, 1.0);
 		EmitVertex();
-		
+		gl_Position = vec4(B.xyz+U, 1.0);
+		EmitVertex();
 		EndPrimitive();
 	}
 }

CGoGN/include/Utils/Shaders/shaderBoldLines.h

@@ -26,7 +26,7 @@
 #define __CGOGN_SHADER_BOLDLINES__
 
 #include "Utils/GLSLShader.h"
-#include "Utils/clippingShader.h"
+#include "Utils/Shaders/shaderPointsLines.h"
 #include "Geometry/vector_gen.h"
 
 #include "Utils/dll.h"
@@ -37,7 +37,7 @@ namespace CGoGN
 namespace Utils
 {
 
-class CGoGN_UTILS_API ShaderBoldLines : public ClippingShader
+class CGoGN_UTILS_API ShaderBoldLines : public ShaderPointsLines
 {
 protected:
 	// shader sources

CGoGN/include/Utils/Shaders/shaderColorDarts.frag

+// ShaderColorDarts::fragmentShaderText
+
+PRECISION;
+
+VARYING_FRAG vec3 fragColor;
+uniform float alpha;
+uniform vec4 planeClip;
+VARYING_FRAG vec3 fragClip;
+
+FRAG_OUT_DEF;
+
+void main()
+{
+	if (dot(planeClip,vec4(fragClip,1.0))>0.0)
+		discard;
+	FRAG_OUT = vec4(fragColor,alpha);
+}

CGoGN/include/Utils/Shaders/shaderColorDarts.geom

+// ShaderColorDarts::geometryShaderText
+
+uniform mat4 ProjectionMatrix;
+uniform vec2 lineWidths;
+
+VARYING_IN vec3 vcolor[];
+VARYING_OUT vec3 fragColor;
+
+VARYING_IN vec3 posClip[];
+VARYING_OUT vec3 fragClip;
+
+
+void main()
+{
+	vec4 A = POSITION_IN(0);
+	vec4 B = POSITION_IN(1);
+	
+	float nearZ = 1.0;
+	if (ProjectionMatrix[2][2] !=  1.0)
+		nearZ = - ProjectionMatrix[3][2] / (ProjectionMatrix[2][2] - 1.0); 
+
+	if ((A.z < nearZ) || (B.z < nearZ))
+	{
+		if (A.z >= nearZ)
+			A = B + (A-B)*(nearZ-B.z)/(A.z-B.z);
+		if (B.z >= nearZ)
+			B = A + (B-A)*(nearZ-A.z)/(B.z-A.z);
+
+		A = ProjectionMatrix*A;
+		B = ProjectionMatrix*B;
+		
+		A = A/A.w;
+		B = B/B.w;
+		vec2 U2 = normalize((B.xyz - A.xyz).xy);
+		vec3 V = vec3(lineWidths*vec2(U2[1], -U2[0]), 0.0)*3.0;
+
+		U2 *= (lineWidths[0]+lineWidths[1])/2.0;
+		vec3 U = vec3(U2,0.0)*3.0;
+		
+//		vec3 U3 = normalize(B.xyz - A.xyz);
+//		U3 *= (lineWidths[0]+lineWidths[1])/2.0;
+		
+		fragClip = posClip[0];
+		fragColor = vcolor[0];
+		gl_Position = vec4(A.xyz-U+V, 1.0);
+		EmitVertex();
+		gl_Position = vec4(A.xyz-U-V, 1.0);
+		EmitVertex();
+		gl_Position = vec4(A.xyz+U+V, 1.0);
+		EmitVertex();
+		gl_Position = vec4(A.xyz+U-V, 1.0);
+		EmitVertex();
+		
+		V /= 3.0;
+		
+		gl_Position = vec4(A.xyz+V, 1.0);
+		EmitVertex();
+		gl_Position = vec4(A.xyz-V, 1.0);
+		EmitVertex();
+		
+		fragClip = posClip[1];
+		fragColor = vcolor[1];
+		gl_Position = vec4(B.xyz+V, 1.0);
+		EmitVertex();
+		gl_Position = vec4(B.xyz-V, 1.0);
+		EmitVertex();
+		
+		EndPrimitive();	
+	}
+}
+
+/*
+
+void main()
+{
+	vec4 A = POSITION_IN(0);
+	vec4 B = POSITION_IN(1);
+	
+	float nearZ = 1.0;
+	if (ProjectionMatrix[2][2] !=  1.0)
+		nearZ = - ProjectionMatrix[3][2] / (ProjectionMatrix[2][2] - 1.0); 
+
+	if ((A.z < nearZ) || (B.z < nearZ))
+	{
+		if (A.z >= nearZ)
+			A = B + (A-B)*(nearZ-B.z)/(A.z-B.z);
+		if (B.z >= nearZ)
+			B = A + (B-A)*(nearZ-A.z)/(B.z-A.z);
+
+		A = ProjectionMatrix*A;
+		B = ProjectionMatrix*B;
+		
+		A = A/A.w;
+		B = B/B.w;
+		vec2 U2 = normalize((B.xyz - A.xyz).xy);
+		vec3 V = vec3(lineWidths*vec2(U2[1], -U2[0]), 0.0);
+		vec3 U3 = normalize(B.xyz - A.xyz);
+		U3 *= (lineWidths[0]+lineWidths[1])/2.0;
+
+		fragClip = posClip[0];
+		A -= vec4(3.0*U3,0.0);
+		gl_Position = vec4(A.xyz+V, 1.0);
+		EmitVertex();
+		gl_Position = vec4(A.xyz-V, 1.0);
+		EmitVertex();
+		
+		A += vec4(2.0*U3,0.0);
+		gl_Position = vec4(A.xyz+3.0*V, 1.0);
+		EmitVertex();
+		gl_Position = vec4(A.xyz-3.0*V, 1.0);
+		EmitVertex();
+
+		A += vec4(2.0*U3,0.0);
+		gl_Position = vec4(A.xyz+3.0*V, 1.0);
+		EmitVertex();
+		gl_Position = vec4(A.xyz-3.0*V, 1.0);
+		EmitVertex();
+
+		A += vec4(2.0*U3,0.0);
+		gl_Position = vec4(A.xyz+V, 1.0);
+		EmitVertex();
+		gl_Position = vec4(A.xyz-V, 1.0);
+		EmitVertex();
+		
+		fragClip = posClip[1];
+		B += vec4(U3,0.0);
+		gl_Position = vec4(B.xyz+V, 1.0);
+		EmitVertex();
+		gl_Position = vec4(B.xyz-V, 1.0);
+		EmitVertex();
+		
+		EndPrimitive();	
+	}
+}
+
+*/
\ No newline at end of file

CGoGN/include/Utils/Shaders/shaderColorDarts.h

+/*******************************************************************************
+* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
+* version 0.1                                                                  *
+* Copyright (C) 2009-2012, IGG Team, LSIIT, University of Strasbourg           *
+*                                                                              *
+* This library is free software; you can redistribute it and/or modify it      *
+* under the terms of the GNU Lesser General Public License as published by the *
+* Free Software Foundation; either version 2.1 of the License, or (at your     *
+* option) any later version.                                                   *
+*                                                                              *
+* This library is distributed in the hope that it will be useful, but WITHOUT  *
+* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or        *
+* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License  *
+* for more details.                                                            *
+*                                                                              *
+* You should have received a copy of the GNU Lesser General Public License     *
+* along with this library; if not, write to the Free Software Foundation,      *
+* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.           *
+*                                                                              *
+* Web site: http://cgogn.unistra.fr/                                           *
+* Contact information: cgogn@unistra.fr                                        *
+*                                                                              *
+*******************************************************************************/
+
+#ifndef __CGOGN_SHADER_COLOR_DARTS__
+#define __CGOGN_SHADER_COLOR_DARTS__
+
+#include "Utils/GLSLShader.h"
+#include "Utils/Shaders/shaderPointsLines.h"
+#include "Geometry/vector_gen.h"
+
+#include "Utils/dll.h"
+
+namespace CGoGN
+{
+
+namespace Utils
+{
+
+class CGoGN_UTILS_API ShaderColorDarts : public ClippingShader
+{
+protected:
+	// shader sources
+    static std::string vertexShaderText;
+    static std::string geometryShaderText;
+    static std::string fragmentShaderText;
+
+    CGoGNGLuint m_uniform_lineWidth;
+	CGoGNGLuint m_unif_alpha;
+
+	Geom::Vec2f m_lineWidth;
+
+	float m_opacity;
+
+    VBO* m_vboPos;
+	VBO* m_vboCol;
+
+	/// clipping
+	CGoGNGLuint m_unif_planeClip;
+	Geom::Vec4f m_planeClip;
+
+	void getLocations();
+
+	void sendParams();
+
+	void restoreUniformsAttribs();
+
+public:
+	ShaderColorDarts();
+
+	void setLineWidth(float pix);
+
+	void setOpacity(float op);
+
+	unsigned int setAttributePosition(VBO* vbo);
+
+	unsigned int setAttributeColor(VBO* vbo);
+
+	void setClippingPlane(const Geom::Vec4f& plane);
+	inline void setNoClippingPlane() { setClippingPlane(Geom::Vec4f(0.0f,0.0f,0.0f,0.0f)); }
+
+};
+
+} // namespace Utils
+
+} // namespace CGoGN
+
+#endif

CGoGN/include/Utils/Shaders/shaderColorDarts.vert

+// ShaderColorDarts::vertexShaderText
+
+ATTRIBUTE vec3 VertexPosition;
+ATTRIBUTE vec3 VertexColor;
+uniform mat4 ModelViewMatrix;
+VARYING_VERT vec3 vcolor;
+VARYING_VERT vec3 posClip;
+
+INVARIANT_POS;
+void main ()
+{
+	posClip = VertexPosition;
+	vcolor = VertexColor;
+	gl_Position = ModelViewMatrix * vec4 (VertexPosition, 1.0);
+}

CGoGN/include/Utils/Shaders/shaderColorPerVertex.h

@@ -26,7 +26,7 @@
 #define __CGOGN_SHADER_CPV__
 
 #include "Utils/GLSLShader.h"
-#include "Utils/clippingShader.h"
+#include "Utils/Shaders/shaderPointsLines.h"
 #include "Geometry/vector_gen.h"
 
 #include "Utils/dll.h"
@@ -37,7 +37,7 @@ namespace CGoGN
 namespace Utils
 {
 
-class CGoGN_UTILS_API ShaderColorPerVertex : public ClippingShader
+class CGoGN_UTILS_API ShaderColorPerVertex : public ShaderPointsLines
 {
 protected:
 	// shader sources
@@ -72,6 +72,9 @@ public:
 	 */
     unsigned int setAttributeColor(VBO* vbo);
 
+	/// just for uniform interface with gl3 BoldLines shaders
+	inline void setLineWidth(float pix) { glLineWidth(pix); }
+
 	/**
 	 * set opacity (0=transparent / 1=opaque)
 	 */
@@ -80,6 +83,7 @@ public:
 	float getOpacity() const  { return m_opacity;}
 
 	void setClippingPlane(const Geom::Vec4f& plane);
+	inline void setNoClippingPlane() { setClippingPlane(Geom::Vec4f(0.0f, 0.0f, 0.0f, 0.0f)); }
 };
 
 } // namespace Utils

CGoGN/include/Utils/Shaders/shaderDarts.frag

+// ShaderDarts::fragmentShaderText
+
+PRECISION;
+uniform vec4 lineColor;
+uniform vec4 planeClip;
+VARYING_FRAG vec3 fragClip;
+
+FRAG_OUT_DEF;