support normal map now,

support "glow" now,
update preview.jpg

QtMeshViewer/Resources/fshader.glsl

@@ -1,21 +1,26 @@
+#version 450
 #ifdef GL_ES
 // Set default precision to medium
 precision mediump int;
 precision mediump float;
 #endif
 
-uniform mat3 n_matrix;
+uniform mat3 normalMatrix;
 uniform vec3 cameraPosition;
 
-uniform sampler2D texture;
+uniform sampler2D tx0;
-uniform sampler2D secondTexture;
+uniform sampler2D tx1;
-uniform float materialShininess;
-uniform vec3 materialSpecularColor;
 
-uniform bool b_transparent;
+uniform struct Material {
-uniform bool b_specular;
+	float shininess;
-uniform bool b_normalmap;
+	vec3 specularColor;
-uniform bool b_light;
+	bool isTransparent;
+	bool hasSpecularmap;
+	bool hasNormalmap;
+	bool isGlow;
+} material;
+
+uniform bool useLight;
 
 uniform struct Light {
 	vec4 position;
@@ -24,82 +29,99 @@ uniform struct Light {
 	float ambientCoefficient;
 } light;
 
-attribute vec3 a_polyNorm;
-attribute vec3 a_polyTan;
-attribute vec3 a_polyBiTan;
-
 varying vec2 v_surfaceUV;
 varying vec3 v_surfacePosition;
 varying vec3 v_surfaceNormal;
+varying vec3 v_polyNorm;
+varying vec3 v_polyTan;
+varying vec3 v_polyBiTan;
 
 void main()
 {
-	if(b_light)
+	if(useLight && !material.isGlow)
 	{
-		// some values
+		// get the color and undo gamma correction
-		mat3 tbn = transpose(mat3(a_polyTan, a_polyBiTan, a_polyNorm));
+		vec4 surfaceColor = vec4(texture2D(tx0, v_surfaceUV));
-
-		vec3 finalNormal = normalize(n_matrix * v_surfaceNormal);
-
-	//	if(b_normalmap)
-	//	{
-	//		finalNormal = texture2D(secondTexture, v_surfaceUV).rgb;
-	//		finalNormal = normalize(finalNormal * 2.0 -1.0)
-	//	}
-
-		vec4 surfaceColor = vec4(texture2D(texture, v_surfaceUV));
 		surfaceColor.rgb = pow(surfaceColor.rgb, vec3(2.2));
-		
-		vec3 surfaceToLight;
-		float attenuation;
-		// directional light
-		if(light.position.w == 0.0f)
-		{
-			surfaceToLight = normalize(light.position.xyz);
-		}
-		// point light
-		else
-		{
-			surfaceToLight = normalize(light.position.xyz - v_surfacePosition);
-		}
-		
-		float distanceToLight = length(light.position.xyz - v_surfacePosition);
-		attenuation = 1.0 / (1.0 + light.attenuationFactor * pow(distanceToLight, 2));
 
+		// attenutation depending on the distance to the light
+		float distanceToLight = length(light.position.xyz - v_surfacePosition);
+		float attenuation = 1.0 / (1.0 + light.attenuationFactor * pow(distanceToLight, 2));
+
+		// normal vector
+		vec3 normal = normalize(normalMatrix * v_surfaceNormal);
+
+		// direction from surface to light depending on the light type
+		vec3 surfaceToLight;
+		if(light.position.w == 0.0)		// directional light
+			surfaceToLight = normalize(light.position.xyz);
+		else							// point light
+			surfaceToLight = normalize(light.position.xyz - v_surfacePosition);
+
+		// direction from surface to camera
 		vec3 surfaceToCamera = normalize(cameraPosition - v_surfacePosition);
 
-		// ambient
+		// adjust the values if material has normal map
+		if(material.hasNormalmap)
+		{
+			vec3 surfaceTangent = normalize(normalMatrix * v_polyTan);
+			vec3 surfaceBitangent = normalize(normalMatrix * -v_polyBiTan);
+			vec3 surfaceNormal = normalize(normalMatrix * v_surfaceNormal);
+			mat3 tbn = transpose(mat3(surfaceTangent, surfaceBitangent, surfaceNormal));
+			normal = texture2D(tx1, v_surfaceUV).rgb;
+			normal = normalize(normal * 2.0 -1.0);
+			surfaceToLight = tbn * surfaceToLight;
+			surfaceToCamera = tbn * surfaceToCamera;
+		}
+
+
+	/////////////////////////////////////////////////////////////////////////////////////
+	// ambient component
+
 		vec3 ambient = light.ambientCoefficient * surfaceColor.rgb * light.intensities;
 
-		// diffuse
+
-		float diffuseCoefficient = max(0.0, dot(finalNormal, surfaceToLight));
+	/////////////////////////////////////////////////////////////////////////////////////
+	// diffuse component
+
+		float diffuseCoefficient = max(0.0, dot(normal, surfaceToLight));
 		vec3 diffuse = diffuseCoefficient * surfaceColor.rgb * light.intensities;
 
-		// specular
+
+	/////////////////////////////////////////////////////////////////////////////////////
+	// specular component
+
 		float specularCoefficient = 0.0;
 		if(diffuseCoefficient > 0.0)
-			specularCoefficient = pow(max(0.0, dot(surfaceToCamera, reflect(-surfaceToLight, finalNormal))), materialShininess);
+			specularCoefficient = pow(max(0.0, dot(surfaceToCamera, reflect(-surfaceToLight, normal))), material.shininess);
-		vec3 specColor;
+		
-		if(b_specular)
+		float specularWeight = 1;
-			specColor = vec3(surfaceColor.a);
+		if(material.hasSpecularmap)
-		else
+			specularWeight = surfaceColor.a;
-			specColor = materialSpecularColor;
+		vec3 specColor = specularWeight * material.specularColor;
+
 		vec3 specular = specularCoefficient * specColor * light.intensities;
 
-		// linear color before gamma correction)
+	/////////////////////////////////////////////////////////////////////////////////////
+	// linear color before gamma correction
 		vec3 linearColor = ambient + attenuation * (diffuse + specular);
 
-		// final color after gama correction
+	/////////////////////////////////////////////////////////////////////////////////////
+	// gama correction
 		vec3 gamma = vec3(1.0/2.2);
-		if(!b_transparent)
+
-			surfaceColor.a = 1.0f;
+		if(!material.isTransparent)
+			surfaceColor.a = 1.0;
+		
 		gl_FragColor = vec4(pow(linearColor, gamma), surfaceColor.a);
 	}
+	// don't use light
 	else
 	{
-		vec4 surfaceColor = vec4(texture2D(texture, v_surfaceUV));
+		vec4 surfaceColor = vec4(texture2D(tx0, v_surfaceUV));
-		if(!b_transparent)
+
-			surfaceColor.a = 1.0f;
+		if(!material.isTransparent)
+			surfaceColor.a = 1.0;
 
 		gl_FragColor = surfaceColor;
 	}

QtMeshViewer/Resources/vshader.glsl

@@ -1,29 +1,39 @@
+#version 450
 #ifdef GL_ES
 // Set default precision to medium
 precision mediump int;
 precision mediump float;
 #endif
 
-uniform mat4 vp_matrix;
+uniform mat4 viewProjection;
-uniform mat4 norm_matrix;
+uniform mat4 normalizeModel;
-uniform mat4 m_matrix;
+uniform mat4 modelMatrix;
 
 attribute vec4 a_position;
 attribute vec2 a_texcoord;
 attribute vec3 a_normal;
+attribute vec3 a_polyNorm;
+attribute vec3 a_polyTan;
+attribute vec3 a_polyBiTan;
 
 varying vec2 v_surfaceUV;
 varying vec3 v_surfacePosition;
 varying vec3 v_surfaceNormal;
+varying vec3 v_polyNorm;
+varying vec3 v_polyTan;
+varying vec3 v_polyBiTan;
 
 void main()
 {
 	// Calculate vertex position in screen space
-	gl_Position = vp_matrix * norm_matrix * m_matrix * a_position;
+	gl_Position = viewProjection * normalizeModel * modelMatrix * a_position;
 
 	// Pass data to fragment shader
 	// Value will be automatically interpolated to fragments inside polygon faces
 	v_surfaceUV = a_texcoord;
-	v_surfacePosition = vec3(norm_matrix * m_matrix * a_position);
+	v_surfacePosition = vec3(normalizeModel * modelMatrix * a_position);
 	v_surfaceNormal = a_normal;
+	v_polyNorm = a_polyNorm;
+	v_polyTan = a_polyTan;
+	v_polyBiTan = a_polyBiTan;
 }

QtMeshViewer/Source/GeometryEngine.cpp

@@ -5,7 +5,6 @@
 #include "..\Header\OutputDevice.h"
 #include <QRegExp>
 
-#include "..\Header\Profiler.h"
 
 /////////////////////////////////////////////////////////////////////////
 // constructor/destructor
@@ -119,11 +118,11 @@ void GeometryEngine::drawGeometry(QOpenGLShaderProgram *program)
 	float maxExtent = std::max(std::max(m_boundings.extents[0], m_boundings.extents[1]), m_boundings.extents[2]);
 	normMatrix.scale(1 / maxExtent);
 	normMatrix.translate(-m_boundings.center[0], -m_boundings.center[1], -m_boundings.center[2]);
-	program->setUniformValue("norm_matrix", normMatrix);
+	program->setUniformValue("normalizeModel", normMatrix);
 
 	// Allways use texture unit 0 and 1
-	program->setUniformValue("texture", 0);
+	program->setUniformValue("tx0", 0);
-	program->setUniformValue("secondTexture", 1);
+	program->setUniformValue("tx1", 1);
 
 	//setup the pipeline
 	setupPipeline(program);
@@ -135,6 +134,7 @@ void GeometryEngine::drawGeometry(QOpenGLShaderProgram *program)
 		bool tmp_transparent(false);
 		bool tmp_specular(false);
 		bool tmp_normalmap(false);
+		bool tmp_glow(false);
 		float shininess(0.0);
 		QVector3D specularColor;
 
@@ -155,6 +155,9 @@ void GeometryEngine::drawGeometry(QOpenGLShaderProgram *program)
 					m_materials->at(it.textureIndex).texture1->bind(1);
 				}
 			}
+
+			if (m_materials->at(it.textureIndex).flags[0] || m_materials->at(it.textureIndex).flags[1] || m_materials->at(it.textureIndex).rendertype == 1)
+				tmp_glow = true;
 		}
 		else
 		{
@@ -163,19 +166,18 @@ void GeometryEngine::drawGeometry(QOpenGLShaderProgram *program)
 		}
 
 		// Set model matrix
-		program->setUniformValue("m_matrix", it.modelMatrix);
+		program->setUniformValue("modelMatrix", it.modelMatrix);
 
 		// Set normal matrix
-		program->setUniformValue("n_matrix", (normMatrix * it.modelMatrix).normalMatrix());
+		program->setUniformValue("normalMatrix", (normMatrix * it.modelMatrix).normalMatrix());
-
-		// set some more values
-		program->setUniformValue("b_transparent", tmp_transparent);
-		program->setUniformValue("b_specular", tmp_specular);
-		program->setUniformValue("b_normalmap", tmp_normalmap);
 
 		// set some material attributes
-		program->setUniformValue("materialShininess", shininess);
+		program->setUniformValue("material.shininess", shininess);
-		program->setUniformValue("materialSpecularColor", specularColor);
+		program->setUniformValue("material.specularColor", specularColor);
+		program->setUniformValue("material.isTransparent", tmp_transparent);
+		program->setUniformValue("material.hasSpecularmap", tmp_specular);
+		program->setUniformValue("material.hasNormalmap", tmp_normalmap);
+		program->setUniformValue("material.isGlow", tmp_glow);
 
 		// Draw cube geometry using indices from VBO 1
 		glDrawElements(GL_TRIANGLES, it.size, GL_UNSIGNED_INT, (void*)(it.offset * sizeof(GLuint)));
@@ -185,7 +187,6 @@ void GeometryEngine::drawGeometry(QOpenGLShaderProgram *program)
 
 void GeometryEngine::loadFile(QString filePath)
 {
-	TIC("Start");
 	// cleanup old stuff and recreate buffers
 	clearData();
 	m_arrayBuf.create();
@@ -260,7 +261,5 @@ void GeometryEngine::loadFile(QString filePath)
 		clearData();
 		OutputDevice::getInstance()->print(QString(e.what()), 2);
 	}
-
-	TOC("End");
 }
 

QtMeshViewer/Source/MshFile.cpp

@@ -921,7 +921,7 @@ void MshFile::loadTexture(QOpenGLTexture *& destination, QString filepath, QStri
 	if (!loadSuccess)
 	{
 		OutputDevice::getInstance()->print("WARNING: texture not found or corrupted: " + filename, 1);
-		
+		//TODO: use the correct diffuse color or return with null
 		img = QImage(1, 1, QImage::Format_RGB32);
 		img.fill(QColor(m_materials->back().diffuseColor[0] * 255, m_materials->back().diffuseColor[1] * 255, m_materials->back().diffuseColor[2] * 255));
 		filename += " *";

QtMeshViewer/Source/OglViewerWidget.cpp

@@ -143,10 +143,10 @@ void OglViewerWidget::paintGL()
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
 	// Set view-projection matrix
-	m_program.setUniformValue("vp_matrix", m_projection * m_camera->getMatrix());
+	m_program.setUniformValue("viewProjection", m_projection * m_camera->getMatrix());
 
 	// Set Light values
-	m_program.setUniformValue("b_light", m_lightOn);
+	m_program.setUniformValue("useLight", m_lightOn);
 	m_program.setUniformValue("light.position", m_light.position);
 	m_program.setUniformValue("light.intensities", m_light.intensities);
 	m_program.setUniformValue("light.attenuationFactor", m_light.attenuationFactor);