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Common/GPU/OpenGL/thin3d_gl.cpp

@@ -540,6 +540,8 @@ OpenGLContext::OpenGLContext() {
 	caps_.depthClampSupported = gl_extensions.ARB_depth_clamp;
 
 	// Interesting potential hack for emulating GL_DEPTH_CLAMP (use a separate varying, force depth in fragment shader):
+	// This will induce a performance penalty on many architectures though so a blanket enable of this
+	// is probably not a good idea.
 	// https://stackoverflow.com/questions/5960757/how-to-emulate-gl-depth-clamp-nv
 
 	switch (gl_extensions.gpuVendor) {

GPU/GLES/GPU_GLES.cpp

@@ -221,7 +221,7 @@ void GPU_GLES::CheckGPUFeatures() {
 		features |= GPU_SUPPORTS_TEXTURE_FLOAT;
 
 	if (draw_->GetDeviceCaps().depthClampSupported) {
-		features |= GPU_SUPPORTS_DEPTH_CLAMP;
+		features |= GPU_SUPPORTS_DEPTH_CLAMP | GPU_SUPPORTS_ACCURATE_DEPTH;
 		// Our implementation of depth texturing needs simple Z range, so can't
 		// use the extension hacks (yet).
 		if (gl_extensions.GLES3)

GPU/GLES/StateMappingGLES.cpp

@@ -236,7 +236,6 @@ void DrawEngineGLES::ApplyDrawState(int prim) {
 			// TODO: Might happen in clear mode if not through...
 			depthClampEnable = false;
 		} else {
-			// Set cull
 			if (gstate.getDepthRangeMin() == 0 || gstate.getDepthRangeMax() == 65535) {
 				// TODO: Still has a bug where we clamp to depth range if one is not the full range.
 				// But the alternate is not clamping in either direction...

GPU/Vulkan/GPU_Vulkan.cpp

@@ -219,7 +219,7 @@ void GPU_Vulkan::CheckGPUFeatures() {
 	}
 
 	// Might enable this later - in the first round we are mostly looking at depth/stencil/discard.
-	// if (g_Config.bDisableVendorBugChecks)
+	// if (!g_Config.bEnableVendorBugChecks)
 	// 	features |= GPU_SUPPORTS_ACCURATE_DEPTH;
 
 	// Mandatory features on Vulkan, which may be checked in "centralized" code