diff --git a/shader/bordertilelinetex.frag b/shader/bordertilelinetex.frag
index 3b2759915..3af09e06c 100644
--- a/shader/bordertilelinetex.frag
+++ b/shader/bordertilelinetex.frag
@@ -5,10 +5,11 @@ uniform sampler2D textureSampler;
 uniform vec4 vertColor;
 
 noperspective in vec2 texCoord;
+flat in float fragLOD;
 
 out vec4 FragClr;
 void main()
 {
-	vec4 tex = texture(textureSampler, texCoord);
+	vec4 tex = textureLod(textureSampler, texCoord, fragLOD);
 	FragClr = tex * vertColor;
 }
\ No newline at end of file
diff --git a/shader/bordertilelinetex.vert b/shader/bordertilelinetex.vert
index 4a203cdb4..6ed47f154 100644
--- a/shader/bordertilelinetex.vert
+++ b/shader/bordertilelinetex.vert
@@ -10,6 +10,7 @@ uniform float LOD;
 uniform vec2 Dir;
 
 noperspective out vec2 texCoord;
+flat out float fragLOD;
 
 void main()
 {
@@ -18,9 +19,10 @@ void main()
 	VertPos.y += Dir.y * (gl_InstanceID+1);
 		
 	gl_Position = vec4(Pos * VertPos, 0.0, 1.0);
-	float F1 = -(0.5/(1024.0 * pow(0.5, (LOD+1.0))));
-	float F2 = (0.5/(1024.0 * pow(0.5, (LOD+1.0))));
+	float F1 = -(0.5/(1024.0 * pow(0.5, LOD)));
+	float F2 = (0.5/(1024.0 * pow(0.5, LOD)));
 	float tx = (inVertexTexCoord.x/(16.0));
 	float ty = (inVertexTexCoord.y/(16.0));
 	texCoord = vec2(tx + (inVertexTexRightOrBottom.x == 0 ? F2 : F1), ty + (inVertexTexRightOrBottom.y == 0 ? F2 : F1));
+	fragLOD = LOD;
 }
\ No newline at end of file
diff --git a/shader/bordertiletex.frag b/shader/bordertiletex.frag
index 3b2759915..3af09e06c 100644
--- a/shader/bordertiletex.frag
+++ b/shader/bordertiletex.frag
@@ -5,10 +5,11 @@ uniform sampler2D textureSampler;
 uniform vec4 vertColor;
 
 noperspective in vec2 texCoord;
+flat in float fragLOD;
 
 out vec4 FragClr;
 void main()
 {
-	vec4 tex = texture(textureSampler, texCoord);
+	vec4 tex = textureLod(textureSampler, texCoord, fragLOD);
 	FragClr = tex * vertColor;
 }
\ No newline at end of file
diff --git a/shader/bordertiletex.vert b/shader/bordertiletex.vert
index 278017c68..fe1c23be9 100644
--- a/shader/bordertiletex.vert
+++ b/shader/bordertiletex.vert
@@ -12,6 +12,7 @@ uniform vec2 Dir;
 uniform int JumpIndex;
 
 noperspective out vec2 texCoord;
+flat out float fragLOD;
 
 void main()
 {
@@ -22,9 +23,10 @@ void main()
 	VertPos.y += Offset.y + Dir.y * YCount;
 		
 	gl_Position = vec4(Pos * VertPos, 0.0, 1.0);
-	float F1 = -(0.5/(1024.0 * pow(0.5, (LOD+1.0))));
-	float F2 = (0.5/(1024.0 * pow(0.5, (LOD+1.0))));
+	float F1 = -(0.5/(1024.0 * pow(0.5, LOD)));
+	float F2 = (0.5/(1024.0 * pow(0.5, LOD)));
 	float tx = (inVertexTexCoord.x/(16.0));
 	float ty = (inVertexTexCoord.y/(16.0));
 	texCoord = vec2(tx + (inVertexTexRightOrBottom.x == 0 ? F2 : F1), ty + (inVertexTexRightOrBottom.y == 0 ? F2 : F1));
+	fragLOD = LOD;
 }
\ No newline at end of file
diff --git a/shader/tiletex.frag b/shader/tiletex.frag
index 1a834e336..f1a21e775 100644
--- a/shader/tiletex.frag
+++ b/shader/tiletex.frag
@@ -5,10 +5,11 @@ uniform sampler2D textureSampler;
 uniform vec4 vertColor;
 
 noperspective in vec2 texCoord;
+flat in float fragLOD;
 
 out vec4 FragClr;
 void main()
 {
-	vec4 tex = texture(textureSampler, texCoord);
+	vec4 tex = textureLod(textureSampler, texCoord, fragLOD);
 	FragClr = tex * vertColor;	
 }
\ No newline at end of file
diff --git a/shader/tiletex.vert b/shader/tiletex.vert
index f007603ad..5acb6c886 100644
--- a/shader/tiletex.vert
+++ b/shader/tiletex.vert
@@ -8,13 +8,15 @@ uniform mat4x2 Pos;
 uniform float LOD;
 
 noperspective out vec2 texCoord;
+flat out float fragLOD;
 
 void main()
 {
 	gl_Position = vec4(Pos * vec4(inVertex, 0.0, 1.0), 0.0, 1.0);
-	float F1 = -(0.5/(1024.0 * pow(0.5, (LOD+1.0))));
-	float F2 = (0.5/(1024.0 * pow(0.5, (LOD+1.0))));
+	float F1 = -(0.5/(1024.0 * pow(0.5, LOD)));
+	float F2 = (0.5/(1024.0 * pow(0.5, LOD)));
 	float tx = (inVertexTexCoord.x/(16.0));
 	float ty = (inVertexTexCoord.y/(16.0));
 	texCoord = vec2(tx + (inVertexTexRightOrBottom.x == 0 ? F2 : F1), ty + (inVertexTexRightOrBottom.y == 0 ? F2 : F1));
+	fragLOD = LOD;
 }
\ No newline at end of file
diff --git a/src/engine/client/backend_sdl.cpp b/src/engine/client/backend_sdl.cpp
index 55635f02a..01b675d33 100644
--- a/src/engine/client/backend_sdl.cpp
+++ b/src/engine/client/backend_sdl.cpp
@@ -929,7 +929,7 @@ void CCommandProcessorFragment_OpenGL3_3::Cmd_Texture_Create(const CCommandBuffe
 		//prevent mipmap display bugs, when zooming out far
 		if(Width >= 1024 && Height >= 1024)
 		{
-			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 5);
+			glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 5.f);
 			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LOD, 5);
 		}
 		glTexImage2D(GL_TEXTURE_2D, 0, StoreOglformat, Width, Height, 0, Oglformat, GL_UNSIGNED_BYTE, pTexData);
diff --git a/src/engine/client/graphics_threaded.cpp b/src/engine/client/graphics_threaded.cpp
index ad8efb6eb..691d5fcba 100644
--- a/src/engine/client/graphics_threaded.cpp
+++ b/src/engine/client/graphics_threaded.cpp
@@ -879,9 +879,9 @@ void CGraphics_Threaded::DrawVisualObject(int VisualObjectIDX, float* pColor, ch
 	Cmd.m_IndicesDrawNum = NumIndicesOffet;
 	Cmd.m_VisualObjectIDX = m_VertexArrayIndices[VisualObjectIDX];
 	mem_copy(&Cmd.m_Color, pColor, sizeof(Cmd.m_Color));
-	float ScreenZoomRatio = (m_State.m_ScreenBR.x - m_State.m_ScreenTL.x) / ScreenWidth();
+	float ScreenZoomRatio = ScreenWidth() / (m_State.m_ScreenBR.x - m_State.m_ScreenTL.x);
 	//the number of pixels we would skip in the fragment shader -- basically the LOD
-	float LODFactor = (64.f / (32.f * 1.f/ScreenZoomRatio));
+	float LODFactor = (64.f / (32.f * ScreenZoomRatio));
 	//log2 gives us the amount of halving the texture for mipmapping
 	int LOD = (int)log2f(LODFactor);
 	//5 because log2(1024/(2^5)) is 5 -- 2^5 = 32 which would mean 2 pixels per tile index
@@ -943,9 +943,9 @@ void CGraphics_Threaded::DrawBorderTile(int VisualObjectIDX, float* pColor, char
 	Cmd.m_DrawNum = DrawNum;
 	Cmd.m_VisualObjectIDX = m_VertexArrayIndices[VisualObjectIDX];
 	mem_copy(&Cmd.m_Color, pColor, sizeof(Cmd.m_Color));
-	float ScreenZoomRatio = (m_State.m_ScreenBR.x - m_State.m_ScreenTL.x) / ScreenWidth();
+	float ScreenZoomRatio = ScreenWidth() / (m_State.m_ScreenBR.x - m_State.m_ScreenTL.x);
 	//the number of pixels we would skip in the fragment shader -- basically the LOD
-	float LODFactor = (64.f / (32.f * 1.f/ScreenZoomRatio));
+	float LODFactor = (64.f / (32.f * ScreenZoomRatio));
 	//log2 gives us the amount of halving the texture for mipmapping
 	int LOD = (int)log2f(LODFactor);
 	if(LOD > 5) LOD = 5;
@@ -984,9 +984,9 @@ void CGraphics_Threaded::DrawBorderTileLine(int VisualObjectIDX, float* pColor,
 	Cmd.m_DrawNum = RedrawNum;
 	Cmd.m_VisualObjectIDX = m_VertexArrayIndices[VisualObjectIDX];
 	mem_copy(&Cmd.m_Color, pColor, sizeof(Cmd.m_Color));
-	float ScreenZoomRatio = (m_State.m_ScreenBR.x - m_State.m_ScreenTL.x) / ScreenWidth();
+	float ScreenZoomRatio = ScreenWidth() / (m_State.m_ScreenBR.x - m_State.m_ScreenTL.x);
 	//the number of pixels we would skip in the fragment shader -- basically the LOD
-	float LODFactor = (64.f / (32.f * 1.f/ScreenZoomRatio));
+	float LODFactor = (64.f / (32.f * ScreenZoomRatio));
 	//log2 gives us the amount of halving the texture for mipmapping
 	int LOD = (int)log2f(LODFactor);
 	if(LOD > 5) LOD = 5;