Particles look better

Author: freddysauceda

ParticleGen.cpp

@@ -11,6 +11,9 @@
 ParticleGen::ParticleGen(int amount, GLuint texture, GLuint shader)
 : amount(amount), texture(texture), shaderProgram(shader) {
 
+    e1 = std::default_random_engine(r());
+    uniform_real = std::uniform_real_distribution<float>(-100.0f,100.0f);
+
     GLfloat particle_quad[] = {
         0.0f, 1.0f, 0.0f, 1.0f,
         1.0f, 0.0f, 1.0f, 0.0f,
@@ -66,8 +69,12 @@ GLuint ParticleGen::firstUnusedParticle(){
 // Respawns particle
 void ParticleGen::respawnParticle(Particle &particle){
 //    srand((unsigned int)time(NULL));
-    GLfloat randomX = ((rand() % 200) - 100);
-    GLfloat randomZ = ((rand() & 200) - 100);
+    
+    float randomX = uniform_real(e1);
+    float randomZ = uniform_real(e1);
+    
+//    GLfloat randomX = ((rand() % 200) - 100);
+//    GLfloat randomZ = ((rand() & 200) - 100);
     GLfloat rColor = 0.5 + ((rand() % 100) / 100.0f);
     particle.Position = glm::vec3(randomX, CLOUD_HEIGHT, randomZ);//Randomize positions on the xy-plane, z should be same
     particle.Color = glm::vec4(rColor, rColor, rColor, 1.0f); //randomize the color

ParticleGen.h

@@ -39,6 +39,9 @@ class ParticleGen : public Geode{
     GLuint texture, shaderProgram;
     std::vector<Particle> particles;
 
+    std::random_device r;
+    std::default_random_engine e1;
+    std::uniform_real_distribution<float> uniform_real;
 
     GLuint uModel, uProjection, uModelview;
 

Window.cpp

@@ -408,7 +408,7 @@ void Window::drawSkybox(){
 void Window::drawObjects(){
     drawSkybox();
 
-//    generator->draw(glm::mat4(1.0f));
+    generator->draw(glm::mat4(1.0f));
 
     //Toggle showing particles drawn
     if(parts)

particleShader.vert

@@ -19,6 +19,6 @@ void main()
 //    TexCoords = vertex.zw;
     ParticleColor = color;
 //    gl_Position = projection * modelview * vec4(position.xyz / scale + partPos, 1.0f);
-    gl_Position = projection * modelview * vec4(position.x/scale+partPos.x,
-                                                position.y*scale+partPos.y, position.z/scale+partPos.z, 1.0f);
+    gl_Position = projection * modelview * vec4(position.x/(scale*3.0f)+partPos.x,
+                                                position.y*scale+partPos.y, position.z/(scale*3.0f)+partPos.z, 1.0f);
 }

waterShader.frag

@@ -20,7 +20,7 @@ in vec3 fromLightVector;
 
 uniform float moveFactor;
 
-const float waveStrength = 0.00375f;
+const float waveStrength = 0.00375f*2.0f*2.0f;
 const float shineDamper = 20.0f; //shinedamper
 const float reflectivity = 1.0f; //reflectivity