D3D11 now does depth clipping and the near clip plane distance is now 1

changelog.txt

@@ -7,6 +7,8 @@ DD Mmm 20 - 1.53
 add: r_alphaToCoverageMipBoost <0.0 to 0.5> (default: 0.125) boosts the alpha value of higher mip levels
   with A2C enabled, it prevents alpha-tested surfaces from fading (too much) in the distance
 
+chg: all rendering backends use depth clipping, near clip plane distance is 1 instead of 4
+
 chg: cl_aviFrameRate now defaults to 60
 
 chg: the Windows audio output now has a sampling rate of 44.1 kHz

code/renderer/tr_backend_d3d11.cpp

@@ -111,9 +111,6 @@ Current info:
 - shader target 4.1 for graphics (SV_VertexID, unsized Texture2DMS)
 - shader target 5.0 for compute  (typed UAVs)
 
-To look at:
-- near clip plane seems to be further in the GL2 back-end in 3D land
-
 Known issues:
 - device re-creation isn't handled by OBS' capture plug-in
 */
@@ -1613,7 +1610,7 @@ static qbool GAL_Init()
 				rasterDesc.CullMode = GetCullMode((cullType_t)cullType);
 				rasterDesc.FrontCounterClockwise = TRUE;
 				rasterDesc.ScissorEnable = TRUE;
-				rasterDesc.DepthClipEnable = FALSE;
+				rasterDesc.DepthClipEnable = TRUE;
 				rasterDesc.DepthBiasClamp = 0.0f;
 				rasterDesc.DepthBias = polygonOffset ? -1 : 0;
 				rasterDesc.SlopeScaledDepthBias = polygonOffset ? -1.0f : 0.0f;

code/renderer/tr_backend_gl2.cpp

@@ -1424,6 +1424,8 @@ static void GL_SetDefaultState()
 	// The default alignment is 4.
 	// RGB with width 1366 -> not a multiple of 4!
 	glPixelStorei( GL_PACK_ALIGNMENT, 1 );
+
+	glDisable( GL_DEPTH_CLAMP );
 }
 
 

code/renderer/tr_backend_gl3.cpp

@@ -1750,6 +1750,7 @@ static void SetDefaultState()
 	glDisable(GL_CLIP_DISTANCE0);
 	glDisable(GL_SAMPLE_ALPHA_TO_COVERAGE);
 	glPixelStorei(GL_PACK_ALIGNMENT, 1);
+	glDisable(GL_DEPTH_CLAMP);
 
 	gl.boundTextures[0] = GLuint(-1);
 	gl.boundTextures[1] = GLuint(-1);

code/renderer/tr_main.cpp

@@ -419,7 +419,7 @@ static void R_SetupProjection()
 	//
 	// set up projection matrix
 	//
-	zNear	= 4.0f;
+	zNear	= 1.0f;
 	zFar	= tr.viewParms.zFar;
 
 	height = 2.0f * zNear * tan( tr.refdef.fov_y * M_PI / 360.0f );