Micro-optimization and unneeded code removal

Resources/Shaders/BasicBlock.vs

@@ -58,22 +58,13 @@ void main() {
 	color.xyz *= color.xyz; // linearize
 	
 	// ambient occlusion
-	ambientOcclusionCoord = (ambientOcclusionCoordAttribute + .5) / 256.;
+	ambientOcclusionCoord = (ambientOcclusionCoordAttribute + .5) * (1. / 256.);
 
 	vec4 viewPos = viewMatrix * vertexPos;
-	/*float distance = length(viewPos.xyz) / fogDistance;
-	distance = clamp(distance, 0., 1.);
-	fogDensity = vec3(distance);
-	fogDensity = pow(fogDensity, vec3(1., .9, .7));
-	fogDensity *= fogDensity;*/
 	float distance = dot(viewPos.xyz, viewPos.xyz);
 	fogDensity = FogDensity(distance).xyz;
-	
-	/*
-	detailCoord = (vec2(dot(tan1, vertexPos.xyz), dot(tan2, vertexPos.xyz))) / 2.;
-	*/
 
-	vec3 normal = normalAttribute; //cross(tan2, tan1);
+	vec3 normal = normalAttribute;
 	vec3 shadowVertexPos = vertexPos.xyz;
 	if(abs(normal.x) > .1) // avoid self shadowing
 		shadowVertexPos += normal * 0.01;

Resources/Shaders/BasicBlockDynamicLit.vs

@@ -54,19 +54,10 @@ void main() {
 	color.xyz *= color.xyz; // linearize
 	
 	vec4 viewPos = viewMatrix * vertexPos;
-	/*float distance = length(viewPos.xyz) / fogDistance;
-	distance = clamp(distance, 0., 1.);
-	fogDensity = vec3(distance);
-	fogDensity = pow(fogDensity, vec3(1., .9, .7));
-	fogDensity *= fogDensity;*/
 	float distance = dot(viewPos.xyz, viewPos.xyz);
 	fogDensity = FogDensity(distance).xyz;
 	
-	/*
-	detailCoord = (vec2(dot(tan1, vertexPos.xyz), dot(tan2, vertexPos.xyz))) / 2.;
-	*/
-	
-	vec3 normal = normalAttribute; //cross(tan2, tan1);
+	vec3 normal = normalAttribute;
 	vec3 shadowVertexPos = vertexPos.xyz;
 	
 	PrepareForDynamicLightNoBump(shadowVertexPos, normal);

Resources/Shaders/BasicBlockPhys.vs

@@ -65,24 +65,13 @@ void main() {
 	
 	
 	// ambient occlusion
-	ambientOcclusionCoord = (ambientOcclusionCoordAttribute + .5) / 256.;
+	ambientOcclusionCoord = (ambientOcclusionCoordAttribute + .5) * (1. / 256.);
 
 	vec4 viewPos = viewMatrix * vertexPos;
-	/*
-	float distance = length(viewPos.xyz) / fogDistance;
-	distance = clamp(distance, 0., 1.);
-	fogDensity = vec3(distance);
-	fogDensity = pow(fogDensity, vec3(1., .9, .7));
-	fogDensity *= fogDensity;
-	*/
 	float distance = dot(viewPos.xyz, viewPos.xyz);
 	fogDensity = FogDensity(distance).xyz;
-	
-	/*
-	detailCoord = (vec2(dot(tan1, vertexPos.xyz), dot(tan2, vertexPos.xyz))) / 2.;
-	*/
 
-	vec3 normal = normalAttribute; //cross(tan2, tan1);
+	vec3 normal = normalAttribute;
 	vec3 shadowVertexPos = vertexPos.xyz;
 	if(abs(normal.x) > .1) // avoid self shadowing
 		shadowVertexPos += normal * 0.01;

Resources/Shaders/LongSprite.vs

@@ -49,11 +49,6 @@ void main() {
 	// FIXME: cannot gamma correct because sprite may be
 	// alpha-blended.
 	vec4 viewPos = viewMatrix * vec4(pos,1.);
-	/*float distance = length(viewPos.xyz) / fogDistance;
-	distance = clamp(distance, 0., 1.);
-	fogDensity = vec4(distance);
-	fogDensity = pow(fogDensity, vec4(1., .9, .7, 1.));
-	 fogDensity *= fogDensity;*/
 	float distance = dot(viewPos.xyz, viewPos.xyz);
 	fogDensity = FogDensity(distance);
 }

Resources/Shaders/OptimizedVoxelModel.vs

@@ -65,7 +65,6 @@ void main() {
 	sunlight = max(sunlight, 0.);
 	flatShading = sunlight;
 	
-	
 	vec4 viewPos = viewModelMatrix * vertexPos;
 	float distance = dot(viewPos.xyz, viewPos.xyz);
 	fogDensity = FogDensity(distance).xyz;

Resources/Shaders/SoftLitSprite.vs

@@ -103,16 +103,9 @@ void main() {
 	// FIXME: cannot gamma correct because sprite may be
 	// alpha-blended.
 	vec4 viewPos = viewMatrix * vec4(pos,1.);
-	/*float distance = length(viewPos.xyz) / fogDistance;
-	distance = clamp(distance, 0., 1.);
-	fogDensity = vec4(distance);
-	fogDensity = pow(fogDensity, vec4(1., .9, .7, 1.));
-	fogDensity *= fogDensity; */
 	float distance = dot(viewPos.xyz, viewPos.xyz);
 	fogDensity = FogDensity(distance);
 	
-	
-	
 	// precompute some value in vertex shader to
 	// reduce instruction count in frag. shader
 	depthRange.z = 1. / (depthRange.y - depthRange.w);

Resources/Shaders/SoftSprite.vs

@@ -86,12 +86,6 @@ void main() {
 	// fog.
 	// FIXME: cannot gamma correct because sprite may be
 	// alpha-blended.
-	/*vec4 viewPos = viewMatrix * vec4(pos,1.);
-	float distance = length(viewPos.xyz) / fogDistance;
-	distance = clamp(distance, 0., 1.);
-	fogDensity = vec4(distance);
-	fogDensity = pow(fogDensity, vec4(1., .9, .7, 1.));
-	fogDensity *= fogDensity;*/
 	float distance = dot(viewPos.xyz, viewPos.xyz);
 	fogDensity = FogDensity(distance);