diff --git a/src/core/core/gltypes.h b/src/core/core/gltypes.h
index 07a1ab7..d5e53c2 100644
--- a/src/core/core/gltypes.h
+++ b/src/core/core/gltypes.h
@@ -196,6 +196,9 @@ inline QColor operator/(const QColor & c, float v) {
 }
 
 
+inline QVector4D color2vector(const QColor & c) {
+	return QVector4D(c.redF(), c.greenF(), c.blueF(), c.alphaF());
+}
 inline void qglColor(const QColor & c) {
 	glColor4f(c.redF(), c.greenF(), c.blueF(), c.alphaF());
 }
diff --git a/src/core/render/renderer.cpp b/src/core/render/renderer.cpp
index c2b51ba..c2cf7fb 100644
--- a/src/core/render/renderer.cpp
+++ b/src/core/render/renderer.cpp
@@ -223,6 +223,10 @@ void Renderer::initShaders() {
 		prog->setUniformValue("tex_coeff_brdf", trCoeffBRDF);
 		prog->setUniformValue("tex_env", trEnvironment);
 		setUniformMaps(prog);
+		prog->setUniformValue("tex_shadows_cone", (int)tarShadowsCone);
+		prog->setUniformValue("tex_shadows_omni", (int)tarShadowsOmni);
+		prog->setUniformValue("tex_depths_cone", (int)tarDepthsCone);
+		prog->setUniformValue("tex_depths_omni", (int)tarDepthsOmni);
 	}
 	if (bindShader(srFinalPass, &prog)) {
 		prog->setUniformValue("tex_g1", 0);
@@ -345,12 +349,13 @@ void Renderer::renderLight(int first_wr_buff, bool clear_only) {
 			}*/
 			fbo_out.setWriteBuffer(first_wr_buff + pass.second);
 			glClearFramebuffer(back, false);
+			back = QColor(0, 0, 0, 0);
 			if (clear_only) continue;
 			setUniformCamera(prog, cam);
 			setUniformViewCorners(prog, cam);
 			prog->setUniformValue("lights_start", lights_start[pass.second]);
 			prog->setUniformValue("lights_count", (int)cur_lights[pass.second].size());
-			prog->setUniformValue("fog_color", view->fogColor());
+			prog->setUniformValue("fog_color", color2vector(view->fogColor()) / 2.);
 			prog->setUniformValue("fog_decay", qMax(view->fogDecay(), 0.001f));
 			prog->setUniformValue("fog_density", view->fogDensity());
 			prog->setUniformValue("view_mat", cam->viewMatrix().inverted().toGenericMatrix<3, 3>());
@@ -361,10 +366,6 @@ void Renderer::renderLight(int first_wr_buff, bool clear_only) {
 				prog->setUniformValue("soft_shadows_enabled", view->soft_shadows);
 				prog->setUniformValue("soft_shadows_samples", view->soft_shadows_samples);
 				prog->setUniformValue("soft_shadows_quality", view->soft_shadows_quality);
-				prog->setUniformValue("tex_shadows_cone", (int)tarShadowsCone);
-				prog->setUniformValue("tex_shadows_omni", (int)tarShadowsOmni);
-				prog->setUniformValue("tex_depths_cone", (int)tarDepthsCone);
-				prog->setUniformValue("tex_depths_omni", (int)tarDepthsOmni);
 				GLenum filter = view->softShadows() ? GL_NEAREST : GL_LINEAR;
 				shadow_maps_cone.bind(view, tarShadowsCone);
 				view->glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, filter);
diff --git a/src/core/view/qglview.cpp b/src/core/view/qglview.cpp
index 928fba2..c7fb625 100644
--- a/src/core/view/qglview.cpp
+++ b/src/core/view/qglview.cpp
@@ -103,7 +103,6 @@ QGLView::QGLView(): OpenGLWindow(), renderer_(this), mouse(this) {
 
 QGLView::~QGLView() {
 	stop();
-	scene_->clear();
 	delete scene_;
 	delete default_camera;
 }
diff --git a/src/qglview_test/qglview_window.cpp b/src/qglview_test/qglview_window.cpp
index 3a4c431..3a0cfee 100644
--- a/src/qglview_test/qglview_window.cpp
+++ b/src/qglview_test/qglview_window.cpp
@@ -124,7 +124,6 @@ QGLViewWindow::QGLViewWindow(QWidget * parent): QMainWindow(parent), Ui::QGLView
 		spinDOFDiaphragm->setValue(view->view()->feature(QGLView::qglDepthOfFieldDiaphragm).toDouble());
 		spinDOFSpeed->setValue(view->view()->feature(QGLView::qglDepthOfFieldAutoFocusSpeed).toDouble());
 	*/
-	view->view()->start(-1);
 	startTimer(1000 / 60);
 
 	connect(view->view(), SIGNAL(keyEvent(Qt::Key, Qt::KeyboardModifiers)), this, SLOT(view_keyEvent(Qt::Key, Qt::KeyboardModifiers)));
@@ -140,6 +139,7 @@ QGLViewWindow::QGLViewWindow(QWidget * parent): QMainWindow(parent), Ui::QGLView
 	auto * o = primitiveEditor->createCurrent();
 	o->calculateBoundingBox();
 	view->view()->focusOn(o->boundingBox());
+	view->view()->start(-1);
 
 	session.load();