Merge branch 'master' of https://git.epicsparrow.com/epicsparrow/PixelWars

shaders/world.frag.glsl

@@ -6,13 +6,28 @@ uniform vec3 camera;
 uniform vec2 worldSize;
 uniform vec2 screenSize;
 
+in vec2 texCoord;
+in vec3 normal;
+
 out vec4 outColor;
 
+vec3 phongLighting(in vec3 kd, in vec3 ks, in float ns, in vec3 color, in vec3 normal, in vec3 lightDir, in vec3 halfVec){
+    float diffuseComponent = max(dot(normal, lightDir), 0);
+    float specularComponent = max(dot(halfVec, normal), 0);
+    return color*diffuseComponent*(kd+ks*pow(specularComponent, ns));
+}
+
 void main()
 {
-    vec2 halfScreen = screenSize/2;
-    vec2 screenPos = gl_FragCoord.xy + camera.xy;
-    vec2 texCoord = (screenPos-halfScreen)/200;
-    vec3 texColor = texelFetch(colorMap, ivec2(screenPos*camera.z)).xyz;
-    outColor = vec4(texColor, 1.0);
+    vec2 worldCoord = texCoord*worldSize + camera.xy;
+    ivec2 nbRevolutions = ivec2(floor(worldCoord / worldSize));
+    if(abs(mod(nbRevolutions.y, 2)) > 0.5)
+    {
+        worldCoord.x += worldSize.x/2;
+        nbRevolutions.x = int(floor(worldCoord.x / worldSize.x));
+    }
+    worldCoord = worldCoord - nbRevolutions*worldSize;
+    vec3 texColor = texelFetch(colorMap, ivec2(worldCoord)).xyz;
+    float pseudoLighting = 0.4+dot(normal, normalize(vec3(-0.5))); // TODO : use phong lighting
+    outColor = vec4(texColor*pseudoLighting, 1.0);
 }

shaders/world.vert.glsl

@@ -1,8 +1,18 @@
 #version 330 core
 
-layout(location = 0)in vec2 inPosition;
+layout(location = 0)in vec3 inPosition;
+layout(location = 2)in vec2 inTexCoord;
+layout(location = 1)in vec3 inNormal;
+
+uniform mat4 mvp;
+uniform vec3 camera;
+
+out vec2 texCoord;
+out vec3 normal;
 
 void main(void)
 {
-    gl_Position = vec4(inPosition, 0.0, 1.0);
+    texCoord = inTexCoord.xy;
+    normal = inNormal.xyz;
+    gl_Position = mvp * vec4(inPosition*camera.z, 1.0);
 }

src/pixelpipeline.cpp

@@ -6,6 +6,8 @@
 #include <glm/vec2.hpp>
 #include <qtutils.h>
 #include "mapscene.h"
+#include <parametricmesh.h>
+#include <glm/ext.hpp>
 
 #define SCROLL_SPEED 0.998f
 
@@ -40,6 +42,20 @@ inline glm::vec3 getColor(const Pixel &p)
 	}
 }
 
+class ToreillerGenerator : public MeshGenerator
+{
+public:
+    virtual glm::vec3 evalUV(float u, float v)
+    {
+        const float MAGIC_RATIO = 1;
+
+        glm::vec2 relUV = glm::vec2(u-0.5f, v-0.5f);
+        float clockAngle = atan2(relUV.y, relUV.x);
+        float depthAngle = glm::length(relUV)*3.1416f*MAGIC_RATIO;
+        float r = sin(depthAngle);
+        return glm::vec3(r*cos(clockAngle), r*sin(clockAngle), cos(depthAngle));
+    }
+};
 
 // MESH (2D points)
 
@@ -118,18 +134,12 @@ PixelPipeline::PixelPipeline(MapScene *map) :
     m_mapFBO->initColorAttachments();
 
     // set up vao
-    const float vertices[] = {
-       -1.0f, -1.0f,
-        3.0f, -1.0f,
-       -1.0f,  3.0f
-    };
-    glGenVertexArrays(1, &m_vao);
-    glBindVertexArray(m_vao);
-    glGenBuffers(1, &m_vbo);
-    glBindBuffer(GL_ARRAY_BUFFER, m_vbo);
-    glBufferData(GL_ARRAY_BUFFER, 3 * 2 * sizeof(GLfloat), vertices, GL_STATIC_DRAW);
-    glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(GLfloat)*2, NULL);
-    glEnableVertexAttribArray(0);
+
+    ToreillerGenerator gen;
+    m_toreiller = gen.generateParametricMesh(NULL, 40, 40, 1.0f);
+    m_toreiller->computeNormals();
+    m_toreiller->mergeVertices();
+    m_toreiller->initGL();
     
     std::string vertSource = QtUtils::fileToString(":shaders/shaders/pixel.vert.glsl").toStdString();
     std::string fragSource = QtUtils::fileToString(":shaders/shaders/pixel.frag.glsl").toStdString();
@@ -173,11 +183,10 @@ void PixelPipeline::updateChanges()
 void PixelPipeline::renderGL(Scene *scene)
 {
     m_targetFBO->bindFBO();
-    glClearColor(0, 0, 0, 1);
-    glClear(GL_COLOR_BUFFER_BIT);
     glViewport(0, 0, m_width, m_height);
+    glClearColor(0, 0, 0, 1);
     glDisable(GL_BLEND);
-    glDisable(GL_DEPTH_TEST);
+    glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
     m_renderShader->bind();
     m_renderShader->bindVec3(m_renderShader->getLocation("camera"), m_camera);
     m_renderShader->bindVec2(m_renderShader->getLocation("worldSize"), glm::vec2(m_mapWidth, m_mapHeight));
@@ -185,16 +194,18 @@ void PixelPipeline::renderGL(Scene *scene)
     m_mapTex->bind(0);
     m_renderShader->bindInteger(m_renderShader->getLocation("colorMap"), 0);
 
-    glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
-    glBindVertexArray(m_vao);
-    glDrawArrays(GL_TRIANGLES, 0, 3);
-    glBindVertexArray(0);
+    glClearDepth(1);
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+    glEnable(GL_DEPTH_TEST);
+    m_renderShader->bindMat4(m_renderShader->getLocation("mvp"), m_mvp);
+    m_toreiller->draw(m_renderShader);
 }
 
 void PixelPipeline::resizeGL(int w, int h)
 {
     m_width = w;
     m_height = h;
+    m_mvp = glm::translate(glm::perspectiveFov(70.f, float(w), float(h), 0.1f, 10.f), glm::vec3(0, 0, -3));
 }
 
 void PixelPipeline::cameraZoom(int nbScrolls)

src/pixelpipeline.h

@@ -2,12 +2,14 @@
 #define PIXELPIPELINE_H
 
 #include <pipeline.h>
+#include <glm/mat4x4.hpp>
 
 class FrameBuffer;
 class Texture;
 class Shader;
 class PixelMesh;
 class MapScene;
+class Mesh;
 
 class PixelPipeline : public Pipeline
 {
@@ -24,7 +26,9 @@ private:
    int m_height;
    glm::vec3 m_camera;
 
-   unsigned int m_vao, m_vbo;
+   Mesh *m_toreiller;
+   glm::mat4 m_mvp;
+   //unsigned int m_vao, m_vbo;
    
 public:
     PixelPipeline(MapScene *map);