Merge remote-tracking branch 'origin'

interface/src/VoxelSystem.cpp

@@ -8,6 +8,29 @@
 
 #include "VoxelSystem.h"
 
+const float MAX_UNIT_ANY_AXIS = 20.0f;
+const float CUBE_WIDTH = 0.01f;
+const int VERTICES_PER_VOXEL = 8;
+const int VERTEX_POINTS_PER_VOXEL = 3 * VERTICES_PER_VOXEL;
+const int COLOR_VALUES_PER_VOXEL = 3 * VERTICES_PER_VOXEL;
+const int INDICES_PER_VOXEL = 3 * 12;
+
+GLfloat identityVertices[] = { -1, -1, 1,
+                               1, -1, 1,
+                               1, -1, -1,
+                               -1, -1, -1,
+                               1, 1, 1,
+                              -1, 1, 1,
+                              -1, 1, -1,
+                               1, 1, -1 };
+
+GLubyte identityIndices[] = { 0,1,2, 0,2,3,
+                              0,4,1, 0,4,5,
+                              0,3,6, 0,5,6,
+                              1,2,4, 2,4,7,
+                              2,3,6, 2,6,7,
+                              4,5,6, 4,6,7 };
+
 
 bool onSphereShell(float radius, float scale, glm::vec3 * position) {
     float vRadius = glm::length(*position);
@@ -18,6 +41,87 @@ void VoxelSystem::init() {
     root = new Voxel;
 }
 
+float randomFloat(float maximumValue) {
+    return ((float) rand() / ((float) RAND_MAX / maximumValue));
+}
+
+void VoxelSystem::init(int numberOfRandomVoxels) {
+    // create the arrays needed to pass to glDrawElements later
+    // position / color are random for now
+    
+    voxelsRendered = numberOfRandomVoxels;
+    
+    // there are 3 points for each vertices, 24 vertices in each cube
+    GLfloat *verticesArray = new GLfloat[VERTEX_POINTS_PER_VOXEL * numberOfRandomVoxels];
+    
+    // we need a color for each vertex in each voxel
+    GLfloat *colorsArray = new GLfloat[COLOR_VALUES_PER_VOXEL * numberOfRandomVoxels];
+    
+    // there are 12 triangles in each cube, with three indices for each triangle
+    GLuint *indicesArray = new GLuint[INDICES_PER_VOXEL * numberOfRandomVoxels];
+    
+    // new seed based on time now so voxels are different each time
+    srand((unsigned)time(0));
+    
+    for (int n = 0; n < numberOfRandomVoxels; n++) {        
+        // pick a random point for the center of the cube
+        glm::vec3 position = glm::vec3(
+            randomFloat(MAX_UNIT_ANY_AXIS * 2) - MAX_UNIT_ANY_AXIS,
+            randomFloat(MAX_UNIT_ANY_AXIS * 2) - MAX_UNIT_ANY_AXIS,
+            randomFloat(MAX_UNIT_ANY_AXIS * 2) - MAX_UNIT_ANY_AXIS
+        );
+        
+        // fill the vertices array
+        GLfloat *currentVerticesPos = verticesArray + (n * VERTEX_POINTS_PER_VOXEL);
+        
+        for (int v = 0; v < VERTEX_POINTS_PER_VOXEL; v++) {
+            currentVerticesPos[v] = position[v % 3] + (identityVertices[v] * CUBE_WIDTH);
+        }
+        
+        // fill the colors array
+        GLfloat *currentColorPos = colorsArray + (n * COLOR_VALUES_PER_VOXEL);
+        float voxelR = randomFloat(1);
+        float voxelG = randomFloat(1);
+        float voxelB = randomFloat(1);
+        
+        for (int c = 0; c < VERTICES_PER_VOXEL; c++) {
+            currentColorPos[0 + (c * 3)] = voxelR;
+            currentColorPos[1 + (c * 3)] = voxelG;
+            currentColorPos[2 + (c * 3)] = voxelB;
+        }
+
+        // fill the indices array
+        int voxelIndexOffset = n * INDICES_PER_VOXEL;
+        GLuint *currentIndicesPos = indicesArray + voxelIndexOffset;
+        int startIndex = (n * VERTICES_PER_VOXEL);
+        
+        for (int i = 0; i < INDICES_PER_VOXEL; i++) {
+            // add indices for this side of the cube
+            currentIndicesPos[i] = startIndex + identityIndices[i];
+        }
+    }
+    
+    // VBO for the verticesArray
+    glGenBuffers(1, &vboVerticesID);
+    glBindBuffer(GL_ARRAY_BUFFER, vboVerticesID);
+    glBufferData(GL_ARRAY_BUFFER, VERTEX_POINTS_PER_VOXEL * sizeof(GLfloat) * numberOfRandomVoxels, verticesArray, GL_STATIC_DRAW);
+    
+    // VBO for colorsArray
+    glGenBuffers(1, &vboColorsID);
+    glBindBuffer(GL_ARRAY_BUFFER, vboColorsID);
+    glBufferData(GL_ARRAY_BUFFER, VERTICES_PER_VOXEL * sizeof(GLfloat) * numberOfRandomVoxels, colorsArray, GL_STATIC_DRAW);
+    
+    // VBO for the indicesArray
+    glGenBuffers(1, &vboIndicesID);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboIndicesID);
+    glBufferData(GL_ELEMENT_ARRAY_BUFFER, numberOfRandomVoxels * INDICES_PER_VOXEL * sizeof(GLuint), indicesArray, GL_STATIC_DRAW);
+
+    // delete the verticesArray, indicesArray
+    delete[] verticesArray;
+    delete[] indicesArray;
+    delete[] colorsArray;
+}
+
 //
 //  Recursively initialize the voxel tree
 //
@@ -118,11 +222,30 @@ int VoxelSystem::render(Voxel * voxel, float scale, glm::vec3 * distance) {
     return vRendered;
 }
 
+void VoxelSystem::render() {
+    glEnableClientState(GL_VERTEX_ARRAY);
+    glEnableClientState(GL_COLOR_ARRAY);
+    
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboIndicesID);
+    
+    glBindBuffer(GL_ARRAY_BUFFER, vboVerticesID);
+    glVertexPointer(3, GL_FLOAT, 0, 0);
+    
+    glBindBuffer(GL_ARRAY_BUFFER, vboColorsID);
+    glColorPointer(3, GL_FLOAT, 0, 0);
+    
+    glDrawElements(GL_TRIANGLES, 36 * voxelsRendered, GL_UNSIGNED_INT, 0);
+    
+    // deactivate vertex and color arrays after drawing
+    glDisableClientState(GL_VERTEX_ARRAY);
+    glDisableClientState(GL_COLOR_ARRAY);
+    
+    // bind with 0 to switch back to normal operation
+    glBindBuffer(GL_ARRAY_BUFFER, 0);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+}
+
 void VoxelSystem::simulate(float deltaTime) {
     
 }
 
-
-
-
-

interface/src/VoxelSystem.h

@@ -26,13 +26,18 @@ class VoxelSystem {
 public:
     void simulate(float deltaTime);
     int render(Voxel * voxel, float scale, glm::vec3 * distance);
+    void render();
     void init();
+    void init(int numberOfRandomVoxels);
     int initVoxels(Voxel * root, float scale, glm::vec3 * position);
     void setVoxelsRendered(int v) {voxelsRendered = v;};
     int getVoxelsRendered() {return voxelsRendered;};
     Voxel * root;
 private:
     int voxelsRendered;
+    GLuint vboVerticesID;
+    GLuint vboColorsID;
+    GLuint vboIndicesID;
 };
 
 #endif

interface/src/main.cpp

@@ -319,10 +319,7 @@ void initDisplay(void)
 
 void init(void)
 {
-    voxels.init();
-    glm::vec3 position(0,0,0);
-    int voxelsMade = voxels.initVoxels(NULL, 10.0, &position);
-    std::cout << voxelsMade << " voxels made. \n";
+    voxels.init(300000);
     
     myHead.setRenderYaw(start_yaw);
 
@@ -577,15 +574,7 @@ void display(void)
         if (!display_head) cloud.render();
     
         //  Draw voxels
-        glPushMatrix();
-        glTranslatef(WORLD_SIZE/2.0, WORLD_SIZE/2.0, WORLD_SIZE/2.0);
-        glm::vec3 distance(5.0 + location[0], 5.0 + location[1], 5.0 + location[2]);
-        //std::cout << "length: " << glm::length(distance) << "\n";
-        int voxelsRendered = voxels.render(NULL, 10.0, &distance);
-        voxels.setVoxelsRendered(voxelsRendered);
-        //glColor4f(0,0,1,0.5);
-        //glutSolidCube(10.0);
-        glPopMatrix();
+        voxels.render();
     
         //  Draw field vectors
         if (display_field) field.render();

mixer/src/main.cpp

@@ -101,7 +101,7 @@ void *sendBuffer(void *args)
                                                       powf(agentPosition[1] - otherAgentPosition[1], 2) +
                                                       powf(agentPosition[2] - otherAgentPosition[2], 2));
                         
-                        distanceCoeffs[lowAgentIndex][highAgentIndex] = std::max(1.0f, powf((logf(DISTANCE_RATIO * distanceToAgent) / logf(3)), 2));
+                        distanceCoeffs[lowAgentIndex][highAgentIndex] = std::min(1.0f, powf(0.5, (logf(DISTANCE_RATIO * distanceToAgent) / logf(3)) - 1));
                     }
                     
                     
@@ -149,11 +149,11 @@ void *sendBuffer(void *args)
                         if (s < numSamplesDelay) {
                             // pull the earlier sample for the delayed channel
                             
-                            int earlierSample = delaySamplePointer[s] / distanceCoeffs[lowAgentIndex][highAgentIndex];
+                            int earlierSample = delaySamplePointer[s] * distanceCoeffs[lowAgentIndex][highAgentIndex];
                             delayedChannel[s] = earlierSample;
                         }
                         
-                        int16_t currentSample = (otherAgentBuffer->getNextOutput()[s] / distanceCoeffs[lowAgentIndex][highAgentIndex]);
+                        int16_t currentSample = (otherAgentBuffer->getNextOutput()[s] * distanceCoeffs[lowAgentIndex][highAgentIndex]);
                         goodChannel[s] = currentSample;
                         
                         if (s + numSamplesDelay < BUFFER_LENGTH_SAMPLES_PER_CHANNEL) {