I've tried to implement screen-space reflections and it seems to work but only at a very tight reflection angle:

[attachment=17858:giboxssr0.jpg]

Here's what happens when I inrease the camera angle to the surface:

[attachment=17857:giboxssr1.jpg]

And if you look at the image below, when I am facing the surface, it just renders the entire scene from the camera's point of view, instead of a reflection:

[attachment=17856:giboxssr2.jpg]

I understand that SSRs only render what the camera can see, so at larger angles from each surface, the reflection will disappear; however, in my case it seems to only work for very tight angles - I've seem implementations that still show a correct reflection at larger angles.

Here's my code:

	vec4 bColor = vec4(0.0);
	float reflDist = 0.0;
	vec3 screenSpacePos;	
	E = normalize(camPos - gsout.worldPos.xyz);
	reflDir = normalize(reflect(-E, bumpN));
	float currDepth = 0.1;

	for(int i = 0; i<20; i++)
	{
		vec4 clipSpace = proj*view*vec4(gsout.worldPos.xyz+reflDir*reflDist,1.0);
		vec3 NDCSpace = clipSpace.xyz/clipSpace.w;
		screenSpacePos = 0.5*NDCSpace + 0.5;

		float sampleDepth = texture(reflTex, screenSpacePos.xy).w;
		currDepth = (proj*view*vec4(gsout.worldPos.xyz+reflDir*reflDist,1.0)).z;
		float diff = currDepth - sampleDepth;
		if(diff < 0)
			bColor.xyz = texture(reflTex, screenSpacePos.xy).xyz;
		reflDist += 0.1;
	}

The reflTex stores the screen space rendering of the scene in the xyz components and length(camPos.xyz - worldPos.xyz) in the w component in a 32-bit floating point texture.

Would anyone be able to give me some tips on what I may be doing wrong?

reflDist += 0.1;

that seems to be quite random, isn't it? depending on the scene's scale and distance etc. you could pretty much just sample the same pixel all the time. the distance you add should be about the size of a pixel.

I'm not quite sure what you are saying, because reflDist += 0.1 means that I am adding 0.1 distance of world space units to the ray direction. I add this to the starting position of the reflection ray - i.e. the world position of the pixel I am looking at. To give you a scale of things, my entire scene is about 2.0x2.0x2.0 world space units.