Position the camera better so that the scaled volume is actually visible

src/consts.cu

@@ -5,7 +5,7 @@ __device__ Vec3 d_cameraDir;
 __device__ Vec3 d_cameraUp;
 __device__ Point3 d_lightPos;
 
-Point3 h_cameraPos = Point3::init(-500.0f, 200.0f, 100.0f);
+Point3 h_cameraPos = Point3::init(-300.0f, 200.0f, -300.0f);
 Vec3 center = Vec3::init((float)VOLUME_WIDTH/2.0f, (float)VOLUME_HEIGHT/2.0f, (float)VOLUME_DEPTH/2.0f);
 Vec3 h_cameraDir = (center - h_cameraPos).normalize();
 Vec3 h_cameraUp = Vec3::init(0.0, 1.0, 0.0).normalize();

src/illumination/Raycaster.cu

@@ -10,6 +10,19 @@
 #include <iostream>
 #include "objs/sphere.h"
 
+// Samples the voxel nearest to the given coordinates. TODO: Can be re-used in other places so move
+__device__ float sampleVolumeNearest(float* volumeData, const int volW, const int volH, const int volD, int vx, int vy, int vz) {
+    if (vx < 0) vx = 0;
+    if (vy < 0) vy = 0;
+    if (vz < 0) vz = 0;
+    if (vx >= volW) vx = volW  - 1;
+    if (vy >= volH) vy = volH - 1;
+    if (vz >= volD) vz = volD  - 1;
+
+    int idx = vz * volW * volH + vy * volD + vx;
+    return volumeData[idx];
+}
+
 
 // TODO: instead of IMAGEWIDTH and IMAGEHEIGHT this should reflect the windowSize;
 __global__ void raycastKernel(float* volumeData, FrameBuffer framebuffer) {

src/main.cu

@@ -54,8 +54,8 @@ void getSpeed(std::vector<float>& speedData, int idx = 0) {
 
 int main() {
   std::vector<float> data;
-  getTemperature(data);
-  // getSpeed(data);
+  // getTemperature(data);
+  getSpeed(data);
 
   std::cout << "DATA size: " << data.size() << std::endl;
 

src/objs/sphere.h

@@ -79,16 +79,3 @@ __host__ void generateVolume(float* volumeData, int volW, int volH, int volD) {
         }
     }
 }
-
-// Samples the voxel nearest to the given coordinates. TODO: Can be re-used in other places so move
-__device__ float sampleVolumeNearest(float* volumeData, const int volW, const int volH, const int volD, int vx, int vy, int vz) {
-    if (vx < 0) vx = 0;
-    if (vy < 0) vy = 0;
-    if (vz < 0) vz = 0;
-    if (vx >= volW) vx = volW  - 1;
-    if (vy >= volH) vy = volH - 1;
-    if (vz >= volD) vz = volD  - 1;
-
-    int idx = vz * volW * volH + vy * volD + vx;
-    return volumeData[idx];
-}