diff --git a/examples/dminer/src/dminer/core/blocks.d b/examples/dminer/src/dminer/core/blocks.d
index e3672efc..d002d16e 100644
--- a/examples/dminer/src/dminer/core/blocks.d
+++ b/examples/dminer/src/dminer/core/blocks.d
@@ -89,21 +89,23 @@ public:
      3  2
 */
 
+immutable float inv = -1.0f;
+
 // pos, normal, color, tx
 static const float[VERTEX_COMPONENTS * 4] face_vertices_north =
 [
-    -0.5, 0.5, -0.5,	0.0, 0.0, -1.0,		1.0, 1.0, 1.0, 1.0,		1.0, 0.0,
-    0.5, 0.5, -0.5,		0.0, 0.0, -1.0,		1.0, 1.0, 1.0, 1.0,		0.0, 0.0,
-    -0.5, -0.5, -0.5,	0.0, 0.0, -1.0,		1.0, 1.0, 1.0, 1.0,		1.0, 1.0,
-    0.5, -0.5, -0.5,	0.0, 0.0, -1.0,		1.0, 1.0, 1.0, 1.0,		0.0, 1.0,
+    -0.5, 0.5, -0.5,	0.0, 0.0, -1.0*inv,		1.0, 1.0, 1.0, 1.0,		1.0, 0.0,
+    0.5, 0.5, -0.5,		0.0, 0.0, -1.0*inv,		1.0, 1.0, 1.0, 1.0,		0.0, 0.0,
+    -0.5, -0.5, -0.5,	0.0, 0.0, -1.0*inv,		1.0, 1.0, 1.0, 1.0,		1.0, 1.0,
+    0.5, -0.5, -0.5,	0.0, 0.0, -1.0*inv,		1.0, 1.0, 1.0, 1.0,		0.0, 1.0,
 ];
 
 static const float[VERTEX_COMPONENTS * 4] face_vertices_south =
 [
-    -0.5, -0.5, 0.5,	0.0, 0.0, 1.0,		1.0, 1.0, 1.0, 1.0,		0.0, 1.0,
-    0.5, -0.5, 0.5,		0.0, 0.0, 1.0,		1.0, 1.0, 1.0, 1.0,		1.0, 1.0,
-    -0.5, 0.5, 0.5,		0.0, 0.0, 1.0,		1.0, 1.0, 1.0, 1.0,		0.0, 0.0,
-    0.5, 0.5, 0.5,		0.0, 0.0, 1.0,		1.0, 1.0, 1.0, 1.0,		1.0, 0.0,
+    -0.5, -0.5, 0.5,	0.0, 0.0, 1.0*inv,		1.0, 1.0, 1.0, 1.0,		0.0, 1.0,
+    0.5, -0.5, 0.5,		0.0, 0.0, 1.0*inv,		1.0, 1.0, 1.0, 1.0,		1.0, 1.0,
+    -0.5, 0.5, 0.5,		0.0, 0.0, 1.0*inv,		1.0, 1.0, 1.0, 1.0,		0.0, 0.0,
+    0.5, 0.5, 0.5,		0.0, 0.0, 1.0*inv,		1.0, 1.0, 1.0, 1.0,		1.0, 0.0,
 ];
 
 static const float[VERTEX_COMPONENTS * 4] face_vertices_west =
diff --git a/examples/dminer/src/minermain.d b/examples/dminer/src/minermain.d
index 08eb7639..cb0b58ab 100644
--- a/examples/dminer/src/minermain.d
+++ b/examples/dminer/src/minermain.d
@@ -86,7 +86,7 @@ class UiWidget : VerticalLayout, CellVisitor {
         dirLightNode.translateX(2);
         dirLightNode.translateY(3);
         dirLightNode.translateZ(0);
-        dirLightNode.light = Light.createPoint(vec3(2, 2, 2), 15); //Light.createDirectional(vec3(1, 0.5, 0.5));
+        dirLightNode.light = Light.createPoint(vec3(12, 12, 12), 25); //Light.createDirectional(vec3(1, 0.5, 0.5));
         dirLightNode.light.enabled = true;
         _scene.addChild(dirLightNode);
 
@@ -134,8 +134,9 @@ class UiWidget : VerticalLayout, CellVisitor {
         updateMinerMesh();
 
         Material minerMaterial = new Material(EffectId("textured.vert", "textured.frag", null), "blocks");
-        minerMaterial.ambientColor = vec3(0.2,0.2,0.2);
+        minerMaterial.ambientColor = vec3(0.05,0.05,0.05);
         minerMaterial.textureLinear = false;
+        minerMaterial.specular = true;
         Model minerDrawable = new Model(minerMaterial, _minerMesh);
         Node3d minerNode = new Node3d("miner", minerDrawable);
         _scene.addChild(minerNode);
diff --git a/src/dlangui/graphics/glsupport.d b/src/dlangui/graphics/glsupport.d
index 1b25f872..5bbb1dc2 100644
--- a/src/dlangui/graphics/glsupport.d
+++ b/src/dlangui/graphics/glsupport.d
@@ -1240,7 +1240,7 @@ class GLObject(GLObjectTypes type, GLuint target = 0) {
             glTexParameteri(target, GL_TEXTURE_MAG_FILTER, linear ? GL_LINEAR : GL_NEAREST);
             glTexParameteri(target, GL_TEXTURE_MIN_FILTER, linear ? 
                             (!mipmap ? GL_LINEAR : GL_LINEAR_MIPMAP_LINEAR) : 
-                            (!mipmap ? GL_NEAREST : GL_LINEAR_MIPMAP_LINEAR)); //GL_NEAREST_MIPMAP_NEAREST
+                            (!mipmap ? GL_NEAREST : GL_NEAREST_MIPMAP_NEAREST)); //GL_NEAREST_MIPMAP_NEAREST
             checkError("filtering - glTexParameteri");
             if(clamp) {
                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);