diff --git a/data/shaders/fog.frag b/data/shaders/fog.frag
index 3fb5f39bb..961400c7e 100644
--- a/data/shaders/fog.frag
+++ b/data/shaders/fog.frag
@@ -15,9 +15,9 @@ out vec4 FragColor;
 
 void main()
 {
-	float z = texture(tex, uv).a;
+	float z = texture(tex, uv).x;
 
-	vec3 tmp = vec3(gl_TexCoord[0].xy, z);
+	vec3 tmp = vec3(uv, z);
 	tmp = tmp * 2.0 - 1.0;
 
 	vec4 xpos = vec4(tmp, 1.0);
diff --git a/src/graphics/post_processing.cpp b/src/graphics/post_processing.cpp
index 845d6928e..186930c39 100644
--- a/src/graphics/post_processing.cpp
+++ b/src/graphics/post_processing.cpp
@@ -567,7 +567,7 @@ void PostProcessing::renderFog(const core::vector3df &campos, const core::matrix
 	glUseProgram(FullScreenShader::FogShader::Program);
 	glBindVertexArray(FullScreenShader::FogShader::vao);
 
-	setTexture(0, static_cast<irr::video::COpenGLTexture*>(irr_driver->getRTT(RTT_NORMAL_AND_DEPTH))->getOpenGLTextureName(), GL_NEAREST, GL_NEAREST);
+	setTexture(0, static_cast<irr::video::COpenGLFBOTexture*>(irr_driver->getRTT(RTT_NORMAL_AND_DEPTH))->DepthBufferTexture, GL_NEAREST, GL_NEAREST);
 	FullScreenShader::FogShader::setUniforms(ipvmat, fogmax, startH, endH, start, end, col, campos, 0);
 
 	glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);