diff --git a/src/viewer/simpleViewer.cpp b/src/viewer/simpleViewer.cpp
index 7600f96..98af1a8 100644
--- a/src/viewer/simpleViewer.cpp
+++ b/src/viewer/simpleViewer.cpp
@@ -129,7 +129,7 @@ void Viewer::drawSkybox()
 
 	// Increase size of skybox
 	modelViewMatrix = QMatrix4x4(modelViewMatrix.normalMatrix());
-	modelViewMatrix.scale(100);
+	modelViewMatrix.scale(300);
 
 	float colorMult = 0.2 + std::fabs(0.8 * cos(std::fmod(angle_mult * frame + 300, 360) / 360 * M_PI));
 
@@ -208,6 +208,7 @@ void Viewer::draw()
 
 	if(!isPickingActivated)
 		drawSkybox();
+	glClear(GL_DEPTH_BUFFER_BIT);
 	glCullFace( GL_BACK );
 
 
@@ -337,14 +338,11 @@ void Viewer::drawParticles(){
 	camera()->getProjectionMatrix(projectionMatrix);
 	camera()->getModelViewMatrix(modelViewMatrix);
 
-
 	glBindVertexArray(m_VAOs[VAO_Particle]);
 	glBindBuffer(GL_ARRAY_BUFFER, VBO_Particle);
 	glBindBuffer(GL_ARRAY_BUFFER, VBO_Particle_Positions);
 	glBindBuffer(GL_ARRAY_BUFFER, VBO_Particle_Colors);
 
-
-
 	glActiveTexture(GL_TEXTURE0);
 	TexturePrograms[1]->bind();