ninja commit

shaders/posteffect.frag.glsl

@@ -0,0 +1,12 @@
+#version 330 core
+
+uniform sampler2DRect colorSampler;
+uniform sampler2DRect depthSampler;
+
+in ivec2 varTexCoord;
+
+layout(location = 0)out vec4 outColor;
+
+void main(void) {
+	outColor = texelFetch(colorSampler, varTexCoord);
+}

shaders/posteffect.vert.glsl

@@ -0,0 +1,12 @@
+#version 330 core
+
+uniform mat4 MVP;
+
+out vec2 varTexCoord;
+
+layout(location = 0)in vec3 inPosition;
+
+void main(void) {
+	varTexCoord = inPosition.xy;
+    gl_Position = MVP * vec4(inPosition, 1.0);
+}

src/forwardmodule.cpp

@@ -65,7 +65,7 @@ void ForwardModule::lightPass(Camera* myCamera, Scene* scene, Light* light)
             switch(light->getType())
             {
             case Light::DIRECTIONNAL:
-                shader->bindVec3(shader->getLocation("dirLight"), light->getDir());
+                shader->bindVec3(shader->getLocation("dirLight"), -light->getDir());
                 shader->bindVec3(shader->getLocation("lightColor"), light->getColor());
                 if(light->isShadowCaster())
                 {
@@ -94,7 +94,7 @@ void ForwardModule::lightPass(Camera* myCamera, Scene* scene, Light* light)
             glm::mat4 normalMatrix = glm::transpose(glm::inverse(modelViewMatrix));
             if(light != NULL && light->isShadowCaster())
             {
-                glm::mat4 lightMVP = light->getProjectionMatrix() * (light->getViewMatrix() * entity->modelMatrix);
+                glm::mat4 lightMVP = Light::biasMatrix * light->getProjectionMatrix() * light->getViewMatrix() * entity->modelMatrix;
                 shader->bindMat4(shader->getLocation("lightMVP"), lightMVP);
             }
             shader->bindMat4(shader->getLocation("viewMatrix"), myCamera->getViewMatrix());

src/framebuffer.cpp

@@ -21,10 +21,18 @@ void FrameBuffer::addTexture(Texture* tex, GLenum attachment)
     {
         textures.push_back(tex);
         bindFBO();
+        if(tex->isCubeMap())
+        {
+            // http://cg.siomax.ru/index.php/computer-graphics/10-one-pass-rendering-to-cube-map
+        }
+        else
+        {
             glAssert(glFramebufferTexture2D(GL_FRAMEBUFFER, attachment, tex->getTarget(), tex->getId(), 0));
             if(attachment != GL_DEPTH_ATTACHMENT)
                 attachments.push_back(attachment);
         }
+
+    }
 }
 
 void FrameBuffer::initColorAttachments()

src/light.cpp

@@ -17,6 +17,12 @@ const char* Light::flagStr[] = {
     "SHADOWMAP"
 };
 
+const glm::mat4 Light::biasMatrix(
+        0.5, 0.0, 0.0, 0.0,
+        0.0, 0.5, 0.0, 0.0,
+        0.0, 0.0, 0.5, 0.0,
+        0.5, 0.5, 0.5, 1.0);
+
 Light::Light()
 {
     initPointLight();
@@ -62,6 +68,8 @@ bool Light::isDirectionnal()
 
 void Light::initShadowMap(int resWidth, int resHeight, glm::vec3 dim)
 {
+    shadowMapWidth = resWidth;
+    shadowMapHeight = resHeight;
     viewMatrix = glm::lookAt(position, position+direction, glm::vec3(0, 1, 0));
     if(type == DIRECTIONNAL)
         projectionMatrix = glm::ortho(-dim.x/2, dim.x/2, -dim.y/2, dim.y/2, -dim.z/2, dim.z/2);
@@ -87,12 +95,13 @@ void Light::initShadowMap(int resWidth, int resHeight, glm::vec3 dim)
 
 void Light::generateShadowMap(Scene* scene)
 {
-    glAssert(glViewport(0, 0, 512, 512));
+    glAssert(glViewport(0, 0, shadowMapWidth, shadowMapHeight));
     shadowMap->bindFBO();
     glAssert(glClearDepth(1.0));
     glAssert(glClear(GL_DEPTH_BUFFER_BIT));
     glAssert(glEnable(GL_DEPTH_TEST));
-    glDepthFunc(GL_LESS);
+    glAssert(glDepthFunc(GL_LESS));
+    glAssert(glCullFace(GL_FRONT));
     for(SceneIterator<PhongEntity*>* entityIt = scene->getGeometry();
         entityIt->isValid(); entityIt->next())
     {
@@ -116,9 +125,11 @@ void Light::generateShadowMap(Scene* scene)
             {
                 entity->drawGroup(j, false, false, false);
                 shaders[0]->bind();
+                shaders[0]->bindMat4(shaders[1]->getLocation("MVP"), lightMVP);
             }
         }
     }
+    glAssert(glCullFace(GL_BACK));
 }
 
 Texture* Light::getShadowMap()
@@ -154,10 +165,16 @@ unsigned int Light::getFlags(Light* l)
 const char* Light::vertSource =
         "#version 330 core\n\
         layout(location = 0)in vec3 inPosition;\n\
+        #ifdef ALPHA_MASK\n\
+        layout(location = 2)in vec2 inTexCoord;\n\
         out vec3 varTexCoord;\n\
+        #endif\n\
         uniform mat4 MVP;\n\
         void main()\n\
         {\n\
+        #ifdef ALPHA_MASK\n\
+            varTexCoord = inTexCoord.xy;\n\
+        #endif\n\
             gl_Position = MVP * vec4(inPosition, 1.0);\n\
         }\n";
 
@@ -165,8 +182,8 @@ const char* Light::fragSource =
         "#version 330 core\n\
         #ifdef ALPHA_MASK\n\
         uniform sampler2D alphaMask;\n\
-        #endif\n\
         in vec3 varTexCoord;\n\
+        #endif\n\
         out float fragmentdepth;\n\
         void main()\n\
         {\n\

src/light.h

@@ -29,6 +29,7 @@ public:
         NB_LIGHT_FLAGS
     };
     static const char* flagStr[];
+    static const glm::mat4 biasMatrix;
 
     Light();
     void initDirectionnalLight(glm::vec3 dir = glm::vec3(1, 0, 0), glm::vec3 lightColor = glm::vec3(1));
@@ -67,6 +68,8 @@ private:
 
     // shadowmap attributes
     bool shadowCaster;
+    int shadowMapWidth;
+    int shadowMapHeight;
     FrameBuffer* shadowMap;
     Shader* shaders[2];
     glm::mat4 viewMatrix;

src/meshbuilder.cpp

@@ -82,34 +82,57 @@ int MeshBuilder::getNbGroups()
     return indiceGroups.size();
 }
 
-bool MeshBuilder::operator() (const int& vertId1, const int& vertId2) const
+class VertexComparator
 {
-    if(positions[vertId1] != positions[vertId2])
-        return (positions[vertId1].x + positions[vertId1].y + positions[vertId1].z) > (positions[vertId2].x + positions[vertId2].y + positions[vertId2].z);
-    if(hasTexCoords())
+public:
+    // c'est crade mais j'ai pas trouvé d'autre moyen pour le moment
+    static MeshBuilder* mesh;
+    static void setMesh(MeshBuilder* m) {VertexComparator::mesh = m;}
+
+    bool operator() (const int& vertId1, const int& vertId2) const
     {
-        if(texCoords[vertId1] != texCoords[vertId2])
-            return (texCoords[vertId1].x + texCoords[vertId1].y) > (texCoords[vertId2].x + texCoords[vertId2].y);
+        if(mesh->positions[vertId1].x != mesh->positions[vertId2].x)
+            return (mesh->positions[vertId1].x < mesh->positions[vertId2].x);
+        if(mesh->positions[vertId1].y != mesh->positions[vertId2].y)
+            return (mesh->positions[vertId1].y < mesh->positions[vertId2].y);
+        if(mesh->positions[vertId1].z != mesh->positions[vertId2].z)
+            return (mesh->positions[vertId1].z < mesh->positions[vertId2].z);
+        if(mesh->hasTexCoords())
+        {
+            if(mesh->texCoords[vertId1].x != mesh->texCoords[vertId2].x)
+                return (mesh->texCoords[vertId1].x < mesh->texCoords[vertId2].x);
+            if(mesh->texCoords[vertId1].y != mesh->texCoords[vertId2].y)
+                return (mesh->texCoords[vertId1].y < mesh->texCoords[vertId2].y);
         }
-    if(hasNormals())
+        if(mesh->hasNormals())
         {
-        if(normals[vertId1] != normals[vertId2])
-            return (normals[vertId1].x + normals[vertId1].y + normals[vertId1].z) > (normals[vertId2].x + normals[vertId2].y + normals[vertId2].z);
+            if(mesh->normals[vertId1].x != mesh->normals[vertId2].x)
+                return (mesh->normals[vertId1].x < mesh->normals[vertId2].x);
+            if(mesh->normals[vertId1].y != mesh->normals[vertId2].y)
+                return (mesh->normals[vertId1].y < mesh->normals[vertId2].y);
+            if(mesh->normals[vertId1].z != mesh->normals[vertId2].z)
+                return (mesh->normals[vertId1].z < mesh->normals[vertId2].z);
         }
         return false;
-}
+    }
+};
+
+MeshBuilder* VertexComparator::mesh = NULL;
 
 void MeshBuilder::mergeVertices()
 {
     std::vector<int> swapped;
-    std::set<int, MeshBuilder> vertexSet;
+    std::set<int, VertexComparator> vertexSet;
+    VertexComparator::setMesh(this);
 
     int size = positions.size();
 
     for(Group &g : indiceGroups)
     for(int i=0; i<g.indices.size(); ++i)
     {
-        std::pair<std::set<int,MeshBuilder>::iterator,bool> ret = vertexSet.insert(g.indices[i]);
+        if(g.indices[i] >= positions.size())
+            g.indices[i] = swapped[size - g.indices[i]];
+        std::pair<std::set<int,VertexComparator>::iterator,bool> ret = vertexSet.insert(g.indices[i]);
         if(!ret.second) // duplicate found
         {
             // updating indices references
@@ -138,13 +161,6 @@ void MeshBuilder::mergeVertices()
     }
 
     fprintf(stdout, "found %d vertex duplicates\n", swapped.size());
-
-    for(Group &g : indiceGroups)
-    for(int i=0; i<g.indices.size(); ++i)
-    {
-        if(g.indices[i] >= positions.size())
-            g.indices[i] = swapped[size - g.indices[i]];
-    }
 }
 
 void MeshBuilder::computeNormals()

src/posteffectmodule.cpp

@@ -3,6 +3,7 @@
 #include "glassert.h"
 #include "texture.h"
 #include "shader.h"
+#include <glm/ext.hpp>
 
 const GLfloat PostEffectModule::vertices[] = {
     0.0f, 1.0f, 0.0f,
@@ -39,6 +40,8 @@ PostEffectModule::PostEffectModule(int width, int height)
     glAssert(glBufferData(GL_ARRAY_BUFFER, 6 * sizeof(GLfloat), vertices, GL_STATIC_DRAW));
     glAssert(glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(float)*3, NULL));
     glAssert(glEnableVertexAttribArray(0));
+
+    mvp = glm::ortho(0, width, 0, height);
 }
 
 PostEffectModule::~PostEffectModule()

src/posteffectmodule.h

@@ -2,6 +2,7 @@
 #define POSTEFFECTMODULE_H
 
 #include <glew/glew.h>
+#include <glm/mat4x4.hpp>
 #include "module.h"
 
 class Shader;
@@ -16,6 +17,7 @@ class PostEffectModule : public Module
     Shader* shader;
     GLuint colorLocation;
     GLuint depthLocation;
+    glm::mat4 mvp;
 
     static const GLfloat vertices[];
 

src/texture.cpp

@@ -12,9 +12,19 @@ Texture::Texture(GLenum format,
 {
     glAssert(glGenTextures(1, &texId));
     glAssert(glBindTexture(target, texId));
-    glAssert(glTexImage2D(target, 0, internal_format, width, height, 0, format, dataType, NULL));
+    if(target == GL_TEXTURE_2D)
+    {
+        glAssert(glTexImage2D(GL_TEXTURE_2D, 0, internal_format, width, height, 0, format, dataType, NULL));
         setWrap(GL_REPEAT);
         setFiltering(GL_LINEAR);
+    }
+    else if(target == GL_TEXTURE_CUBE_MAP)
+    {
+        for(int i=0; i<6; ++i)
+            glAssert(glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, internal_format, width, height, 0, format, dataType, NULL));
+        setWrap(GL_CLAMP_TO_EDGE);
+        setFiltering(GL_LINEAR);
+    }
 }
 
 Texture::Texture(Image* myImage) : target(GL_TEXTURE_2D)

src/texture.h

@@ -34,6 +34,7 @@ public:
     GLenum getTarget() {return target;}
     void setWrap(GLint wrap);
     void setFiltering(GLint filter);
+    bool isCubeMap() {return target == GL_TEXTURE_CUBE_MAP;}
 };
 
 #endif // TEXTURE_H