Merge 0.4.16 into stable-0.4

6 files changed, 51 insertions, 375 deletions

diff --git a/client/shaders/nodes_shader/opengl_fragment.glsl b/client/shaders/nodes_shader/opengl_fragment.glsl
index 71ded2b9d..7c5b9b613 100644
--- a/client/shaders/nodes_shader/opengl_fragment.glsl
+++ b/client/shaders/nodes_shader/opengl_fragment.glsl
@@ -37,7 +37,7 @@ const float fogShadingParameter = 1 / ( 1 - fogStart);
 
 vec3 uncharted2Tonemap(vec3 x)
 {
-	return ((x * (0.22 * x + 0.03) + 0.002) / (x * (0.22 * x + 0.3) + 0.06)) - 0.03334;
+	return ((x * (0.22 * x + 0.03) + 0.002) / (x * (0.22 * x + 0.3) + 0.06)) - 0.03333;
 }
 
 vec4 applyToneMapping(vec4 color)
@@ -163,7 +163,8 @@ void main(void)
 	}
 #endif
 
-	if (GENERATE_NORMALMAPS == 1 && normalTexturePresent == false) {
+#if GENERATE_NORMALMAPS == 1
+	if (normalTexturePresent == false) {
 		float tl = get_rgb_height(vec2(uv.x - SAMPLE_STEP, uv.y + SAMPLE_STEP));
 		float t  = get_rgb_height(vec2(uv.x - SAMPLE_STEP, uv.y - SAMPLE_STEP));
 		float tr = get_rgb_height(vec2(uv.x + SAMPLE_STEP, uv.y + SAMPLE_STEP));
@@ -177,7 +178,7 @@ void main(void)
 		bump = vec4(normalize(vec3 (dX, dY, NORMALMAPS_STRENGTH)), 1.0);
 		use_normalmap = true;
 	}
-
+#endif
 	vec4 base = texture2D(baseTexture, uv).rgba;
 
 #ifdef ENABLE_BUMPMAPPING
@@ -200,20 +201,18 @@ void main(void)
 	col = applyToneMapping(col);
 #endif
 
-	if (fogDistance != 0.0) {
-		// Due to a bug in some (older ?) graphics stacks (possibly in the glsl compiler ?),
-		// the fog will only be rendered correctly if the last operation before the
-		// clamp() is an addition. Else, the clamp() seems to be ignored.
-		// E.g. the following won't work:
-		//      float clarity = clamp(fogShadingParameter
-		//		* (fogDistance - length(eyeVec)) / fogDistance), 0.0, 1.0);
-		// As additions usually come for free following a multiplication, the new formula
-		// should be more efficient as well.
-		// Note: clarity = (1 - fogginess)
-		float clarity = clamp(fogShadingParameter
-			- fogShadingParameter * length(eyeVec) / fogDistance, 0.0, 1.0);
-		col = mix(skyBgColor, col, clarity);
-	}
+	// Due to a bug in some (older ?) graphics stacks (possibly in the glsl compiler ?),
+	// the fog will only be rendered correctly if the last operation before the
+	// clamp() is an addition. Else, the clamp() seems to be ignored.
+	// E.g. the following won't work:
+	//      float clarity = clamp(fogShadingParameter
+	//		* (fogDistance - length(eyeVec)) / fogDistance), 0.0, 1.0);
+	// As additions usually come for free following a multiplication, the new formula
+	// should be more efficient as well.
+	// Note: clarity = (1 - fogginess)
+	float clarity = clamp(fogShadingParameter
+		- fogShadingParameter * length(eyeVec) / fogDistance, 0.0, 1.0);
+	col = mix(skyBgColor, col, clarity);
 	col = vec4(col.rgb, base.a);
 
 	gl_FragColor = col;
diff --git a/client/shaders/nodes_shader/opengl_vertex.glsl b/client/shaders/nodes_shader/opengl_vertex.glsl
index 44c48cc4c..3ac79c26d 100644
--- a/client/shaders/nodes_shader/opengl_vertex.glsl
+++ b/client/shaders/nodes_shader/opengl_vertex.glsl
@@ -1,7 +1,8 @@
 uniform mat4 mWorldViewProj;
 uniform mat4 mWorld;
 
-uniform float dayNightRatio;
+// Color of the light emitted by the sun.
+uniform vec3 dayLight;
 uniform vec3 eyePosition;
 uniform float animationTimer;
 
@@ -14,6 +15,8 @@ varying vec3 tsEyeVec;
 varying vec3 tsLightVec;
 varying float area_enable_parallax;
 
+// Color of the light emitted by the light sources.
+const vec3 artificialLight = vec3(1.04, 1.04, 1.04);
 const float e = 2.718281828459;
 const float BS = 10.0;
 
@@ -119,31 +122,23 @@ float disp_z;
 	v.z = dot(eyeVec, normal);
 	tsEyeVec = normalize (v);
 
+	// Calculate color.
+	// Red, green and blue components are pre-multiplied with
+	// the brightness, so now we have to multiply these
+	// colors with the color of the incoming light.
+	// The pre-baked colors are halved to prevent overflow.
 	vec4 color;
-	float day = gl_Color.r;
-	float night = gl_Color.g;
-	float light_source = gl_Color.b;
-
-	float rg = mix(night, day, dayNightRatio);
-	rg += light_source * 2.5; // Make light sources brighter
-	float b = rg;
-
-	// Moonlight is blue
-	b += (day - night) / 13.0;
-	rg -= (day - night) / 23.0;
-
+	// The alpha gives the ratio of sunlight in the incoming light.
+	float nightRatio = 1 - gl_Color.a;
+	color.rgb = gl_Color.rgb * (gl_Color.a * dayLight.rgb + 
+		nightRatio * artificialLight.rgb) * 2;
+	color.a = 1;
+	
 	// Emphase blue a bit in darker places
 	// See C++ implementation in mapblock_mesh.cpp finalColorBlend()
-	b += max(0.0, (1.0 - abs(b - 0.13) / 0.17) * 0.025);
-
-	// Artificial light is yellow-ish
-	// See C++ implementation in mapblock_mesh.cpp finalColorBlend()
-	rg += max(0.0, (1.0 - abs(rg - 0.85) / 0.15) * 0.065);
-
-	color.r = rg;
-	color.g = rg;
-	color.b = b;
-
-	color.a = gl_Color.a;
+	float brightness = (color.r + color.g + color.b) / 3;
+	color.b += max(0.0, 0.021 - abs(0.2 * brightness - 0.021) +
+		0.07 * brightness);
+	
 	gl_FrontColor = gl_BackColor = clamp(color, 0.0, 1.0);
 }
diff --git a/client/shaders/water_surface_shader/opengl_fragment.glsl b/client/shaders/water_surface_shader/opengl_fragment.glsl
deleted file mode 100644
index c4e78470d..000000000
--- a/client/shaders/water_surface_shader/opengl_fragment.glsl
+++ /dev/null
@@ -1,176 +0,0 @@
-uniform sampler2D baseTexture;
-uniform sampler2D normalTexture;
-uniform sampler2D textureFlags;
-
-uniform vec4 skyBgColor;
-uniform float fogDistance;
-uniform vec3 eyePosition;
-
-varying vec3 vPosition;
-varying vec3 worldPosition;
-
-varying vec3 eyeVec;
-varying vec3 tsEyeVec;
-varying vec3 lightVec;
-varying vec3 tsLightVec;
-
-bool normalTexturePresent = false;
-bool texTileableHorizontal = false;
-bool texTileableVertical = false;
-bool texSeamless = false;
-
-const float e = 2.718281828459;
-const float BS = 10.0;
-const float fogStart = FOG_START;
-const float fogShadingParameter = 1 / ( 1 - fogStart);
-
-#ifdef ENABLE_TONE_MAPPING
-
-/* Hable's UC2 Tone mapping parameters
-	A = 0.22;
-	B = 0.30;
-	C = 0.10;
-	D = 0.20;
-	E = 0.01;
-	F = 0.30;
-	W = 11.2;
-	equation used:  ((x * (A * x + C * B) + D * E) / (x * (A * x + B) + D * F)) - E / F
-*/
-
-vec3 uncharted2Tonemap(vec3 x)
-{
-	return ((x * (0.22 * x + 0.03) + 0.002) / (x * (0.22 * x + 0.3) + 0.06)) - 0.03334;
-}
-
-vec4 applyToneMapping(vec4 color)
-{
-	color = vec4(pow(color.rgb, vec3(2.2)), color.a);
-	const float gamma = 1.6;
-	const float exposureBias = 5.5;
-	color.rgb = uncharted2Tonemap(exposureBias * color.rgb);
-	// Precalculated white_scale from 
-	//vec3 whiteScale = 1.0 / uncharted2Tonemap(vec3(W));
-	vec3 whiteScale = vec3(1.036015346);
-	color.rgb *= whiteScale;
-	return vec4(pow(color.rgb, vec3(1.0 / gamma)), color.a);
-}
-#endif
-
-void get_texture_flags()
-{
-	vec4 flags = texture2D(textureFlags, vec2(0.0, 0.0));
-	if (flags.r > 0.5) {
-		normalTexturePresent = true;
-	}
-	if (flags.g > 0.5) {
-		texTileableHorizontal = true;
-	}
-	if (flags.b > 0.5) {
-		texTileableVertical = true;
-	}
-	if (texTileableHorizontal && texTileableVertical) {
-		texSeamless = true;
-	}
-}
-
-float intensity(vec3 color)
-{
-	return (color.r + color.g + color.b) / 3.0;
-}
-
-float get_rgb_height(vec2 uv)
-{
-	return intensity(texture2D(baseTexture,uv).rgb);
-}
-
-vec4 get_normal_map(vec2 uv)
-{
-	vec4 bump = texture2D(normalTexture, uv).rgba;
-	bump.xyz = normalize(bump.xyz * 2.0 -1.0);
-	bump.y = -bump.y;
-	return bump;
-}
-
-void main(void)
-{
-	vec3 color;
-	vec4 bump;
-	vec2 uv = gl_TexCoord[0].st;
-	bool use_normalmap = false;
-	get_texture_flags();
-
-#ifdef ENABLE_PARALLAX_OCCLUSION
-	if (normalTexturePresent) {
-		vec3 tsEye = normalize(tsEyeVec);
-		float height = PARALLAX_OCCLUSION_SCALE * texture2D(normalTexture, uv).a - PARALLAX_OCCLUSION_BIAS;
-		uv = uv + texture2D(normalTexture, uv).z * height * vec2(tsEye.x,-tsEye.y);
-	}
-#endif
-
-#ifdef USE_NORMALMAPS
-	if (normalTexturePresent) {
-		bump = get_normal_map(uv);
-		use_normalmap = true;
-	} 
-#endif
-
-	if (GENERATE_NORMALMAPS == 1 && use_normalmap == false) {
-		float tl = get_rgb_height (vec2(uv.x-SAMPLE_STEP,uv.y+SAMPLE_STEP));
-		float t  = get_rgb_height (vec2(uv.x-SAMPLE_STEP,uv.y-SAMPLE_STEP));
-		float tr = get_rgb_height (vec2(uv.x+SAMPLE_STEP,uv.y+SAMPLE_STEP));
-		float r  = get_rgb_height (vec2(uv.x+SAMPLE_STEP,uv.y));
-		float br = get_rgb_height (vec2(uv.x+SAMPLE_STEP,uv.y-SAMPLE_STEP));
-		float b  = get_rgb_height (vec2(uv.x,uv.y-SAMPLE_STEP));
-		float bl = get_rgb_height (vec2(uv.x-SAMPLE_STEP,uv.y-SAMPLE_STEP));
-		float l  = get_rgb_height (vec2(uv.x-SAMPLE_STEP,uv.y));
-		float dX = (tr + 2.0 * r + br) - (tl + 2.0 * l + bl);
-		float dY = (bl + 2.0 * b + br) - (tl + 2.0 * t + tr);
-		bump = vec4 (normalize(vec3 (dX, -dY, NORMALMAPS_STRENGTH)),1.0);
-		use_normalmap = true;
-	}
-
-vec4 base = texture2D(baseTexture, uv).rgba;
-
-#ifdef ENABLE_BUMPMAPPING
-	if (use_normalmap) {
-		vec3 L = normalize(lightVec);
-		vec3 E = normalize(eyeVec);
-		float specular = pow(clamp(dot(reflect(L, bump.xyz), E), 0.0, 1.0),0.5);
-		float diffuse = dot(E,bump.xyz);
-		/* Mathematic optimization
-		* Original: color = 0.05*base.rgb + diffuse*base.rgb + 0.2*specular*base.rgb;
-		* This optimization save 2 multiplications (orig: 4 multiplications + 3 additions
-		* end: 2 multiplications + 3 additions)
-		*/
-		color = (0.05 + diffuse + 0.2 * specular) * base.rgb;
-	} else {
-		color = base.rgb;
-	}
-#else
-	color = base.rgb;
-#endif
-
-	vec4 col = vec4(color.rgb * gl_Color.rgb, 1.0); 
-
-#ifdef ENABLE_TONE_MAPPING
-	col = applyToneMapping(col);
-#endif
-
-	if (fogDistance != 0.0) {
-		// Due to a bug in some (older ?) graphics stacks (possibly in the glsl compiler ?),
-		// the fog will only be rendered correctly if the last operation before the
-		// clamp() is an addition. Else, the clamp() seems to be ignored.
-		// E.g. the following won't work:
-		//      float clarity = clamp(fogShadingParameter
-		//		* (fogDistance - length(eyeVec)) / fogDistance), 0.0, 1.0);
-		// As additions usually come for free following a multiplication, the new formula
-		// should be more efficient as well.
-		// Note: clarity = (1 - fogginess)
-		float clarity = clamp(fogShadingParameter
-			- fogShadingParameter * length(eyeVec) / fogDistance, 0.0, 1.0);
-		col = mix(skyBgColor, col, clarity);
-	}
-	col = vec4(col.rgb, base.a);
-
-	gl_FragColor = col;
-}
diff --git a/client/shaders/water_surface_shader/opengl_vertex.glsl b/client/shaders/water_surface_shader/opengl_vertex.glsl
deleted file mode 100644
index a930e7b8f..000000000
--- a/client/shaders/water_surface_shader/opengl_vertex.glsl
+++ /dev/null
@@ -1,142 +0,0 @@
-uniform mat4 mWorldViewProj;
-uniform mat4 mWorld;
-
-uniform float dayNightRatio;
-uniform vec3 eyePosition;
-uniform float animationTimer;
-
-varying vec3 vPosition;
-varying vec3 worldPosition;
-
-varying vec3 eyeVec;
-varying vec3 lightVec;
-varying vec3 tsEyeVec;
-varying vec3 tsLightVec;
-
-const float e = 2.718281828459;
-const float BS = 10.0;
-
-float smoothCurve(float x)
-{
-	return x * x * (3.0 - 2.0 * x);
-}
-float triangleWave(float x)
-{
-	return abs(fract( x + 0.5 ) * 2.0 - 1.0);
-}
-float smoothTriangleWave(float x)
-{
-	return smoothCurve(triangleWave( x )) * 2.0 - 1.0;
-}
-
-void main(void)
-{
-	gl_TexCoord[0] = gl_MultiTexCoord0;
-
-#if (MATERIAL_TYPE == TILE_MATERIAL_LIQUID_TRANSPARENT || MATERIAL_TYPE == TILE_MATERIAL_LIQUID_OPAQUE) && ENABLE_WAVING_WATER
-	vec4 pos = gl_Vertex;
-	pos.y -= 2.0;
-
-	float posYbuf = (pos.z / WATER_WAVE_LENGTH + animationTimer * WATER_WAVE_SPEED * WATER_WAVE_LENGTH);
-
-	pos.y -= sin(posYbuf) * WATER_WAVE_HEIGHT + sin(posYbuf / 7.0) * WATER_WAVE_HEIGHT;
-	gl_Position = mWorldViewProj * pos;
-#elif MATERIAL_TYPE == TILE_MATERIAL_WAVING_LEAVES && ENABLE_WAVING_LEAVES
-	vec4 pos = gl_Vertex;
-	vec4 pos2 = mWorld * gl_Vertex;
-	/*
-	 * Mathematic optimization: pos2.x * A + pos2.z * A (2 multiplications + 1 addition)
-	 * replaced with: (pos2.x + pos2.z) * A (1 addition + 1 multiplication)
-	 * And bufferize calcul to a float
-	 */
-	float pos2XpZ = pos2.x + pos2.z;
-	pos.x += (smoothTriangleWave(animationTimer*10.0 + pos2XpZ * 0.01) * 2.0 - 1.0) * 0.4;
-	pos.y += (smoothTriangleWave(animationTimer*15.0 + pos2XpZ * -0.01) * 2.0 - 1.0) * 0.2;
-	pos.z += (smoothTriangleWave(animationTimer*10.0 + pos2XpZ * -0.01) * 2.0 - 1.0) * 0.4;
-	gl_Position = mWorldViewProj * pos;
-#elif MATERIAL_TYPE == TILE_MATERIAL_WAVING_PLANTS && ENABLE_WAVING_PLANTS
-	vec4 pos = gl_Vertex;
-	vec4 pos2 = mWorld * gl_Vertex;
-	if (gl_TexCoord[0].y < 0.05) {
-		/*
-		 * Mathematic optimization: pos2.x * A + pos2.z * A (2 multiplications + 1 addition)
-		 * replaced with: (pos2.x + pos2.z) * A (1 addition + 1 multiplication)
-		 * And bufferize calcul to a float
-		 */
-		float pos2XpZ = pos2.x + pos2.z;
-		pos.x += (smoothTriangleWave(animationTimer * 20.0 + pos2XpZ * 0.1) * 2.0 - 1.0) * 0.8;
-		pos.y -= (smoothTriangleWave(animationTimer * 10.0 + pos2XpZ * -0.5) * 2.0 - 1.0) * 0.4;
-	}
-	gl_Position = mWorldViewProj * pos;
-#else
-	gl_Position = mWorldViewProj * gl_Vertex;
-#endif
-
-	vPosition = gl_Position.xyz;
-	worldPosition = (mWorld * gl_Vertex).xyz;
-	vec3 sunPosition = vec3 (0.0, eyePosition.y * BS + 900.0, 0.0);
-
-	vec3 normal, tangent, binormal;
-	normal = normalize(gl_NormalMatrix * gl_Normal);
-	if (gl_Normal.x > 0.5) {
-		//  1.0,  0.0,  0.0
-		tangent  = normalize(gl_NormalMatrix * vec3( 0.0,  0.0, -1.0));
-		binormal = normalize(gl_NormalMatrix * vec3( 0.0, -1.0,  0.0));
-	} else if (gl_Normal.x < -0.5) {
-		// -1.0,  0.0,  0.0
-		tangent  = normalize(gl_NormalMatrix * vec3( 0.0,  0.0,  1.0));
-		binormal = normalize(gl_NormalMatrix * vec3( 0.0, -1.0,  0.0));
-	} else if (gl_Normal.y > 0.5) {
-		//  0.0,  1.0,  0.0
-		tangent  = normalize(gl_NormalMatrix * vec3( 1.0,  0.0,  0.0));
-		binormal = normalize(gl_NormalMatrix * vec3( 0.0,  0.0,  1.0));
-	} else if (gl_Normal.y < -0.5) {
-		//  0.0, -1.0,  0.0
-		tangent  = normalize(gl_NormalMatrix * vec3( 1.0,  0.0,  0.0));
-		binormal = normalize(gl_NormalMatrix * vec3( 0.0,  0.0,  1.0));
-	} else if (gl_Normal.z > 0.5) {
-		//  0.0,  0.0,  1.0
-		tangent  = normalize(gl_NormalMatrix * vec3( 1.0,  0.0,  0.0));
-		binormal = normalize(gl_NormalMatrix * vec3( 0.0, -1.0,  0.0));
-	} else if (gl_Normal.z < -0.5) {
-		//  0.0,  0.0, -1.0
-		tangent  = normalize(gl_NormalMatrix * vec3(-1.0,  0.0,  0.0));
-		binormal = normalize(gl_NormalMatrix * vec3( 0.0, -1.0,  0.0));
-	}
-	mat3 tbnMatrix = mat3(tangent.x, binormal.x, normal.x,
-							tangent.y, binormal.y, normal.y,
-							tangent.z, binormal.z, normal.z);
-
-	lightVec = sunPosition - worldPosition;
-	tsLightVec = lightVec * tbnMatrix;
-	eyeVec = (gl_ModelViewMatrix * gl_Vertex).xyz;
-	tsEyeVec = eyeVec * tbnMatrix;
-
-	vec4 color;
-	float day = gl_Color.r;
-	float night = gl_Color.g;
-	float light_source = gl_Color.b;
-
-	float rg = mix(night, day, dayNightRatio);
-	rg += light_source * 2.5; // Make light sources brighter
-	float b = rg;
-
-	// Moonlight is blue
-	b += (day - night) / 13.0;
-	rg -= (day - night) / 23.0;
-
-	// Emphase blue a bit in darker places
-	// See C++ implementation in mapblock_mesh.cpp finalColorBlend()
-	b += max(0.0, (1.0 - abs(b - 0.13)/0.17) * 0.025);
-
-	// Artificial light is yellow-ish
-	// See C++ implementation in mapblock_mesh.cpp finalColorBlend()
-	rg += max(0.0, (1.0 - abs(rg - 0.85)/0.15) * 0.065);
-
-	color.r = rg;
-	color.g = rg;
-	color.b = b;
-
-	color.a = gl_Color.a;
-	gl_FrontColor = gl_BackColor = clamp(color,0.0,1.0);
-}
diff --git a/client/shaders/wielded_shader/opengl_fragment.glsl b/client/shaders/wielded_shader/opengl_fragment.glsl
index ba7a8f12d..546aef71d 100644
--- a/client/shaders/wielded_shader/opengl_fragment.glsl
+++ b/client/shaders/wielded_shader/opengl_fragment.glsl
@@ -75,7 +75,8 @@ void main(void)
 	}
 #endif
 
-	if (GENERATE_NORMALMAPS == 1 && normalTexturePresent == false) {
+#if GENERATE_NORMALMAPS == 1
+	if (normalTexturePresent == false) {
 		float tl = get_rgb_height(vec2(uv.x - SAMPLE_STEP, uv.y + SAMPLE_STEP));
 		float t  = get_rgb_height(vec2(uv.x - SAMPLE_STEP, uv.y - SAMPLE_STEP));
 		float tr = get_rgb_height(vec2(uv.x + SAMPLE_STEP, uv.y + SAMPLE_STEP));
@@ -89,6 +90,7 @@ void main(void)
 		bump = vec4(normalize(vec3 (dX, dY, NORMALMAPS_STRENGTH)), 1.0);
 		use_normalmap = true;
 	}
+#endif
 
 	vec4 base = texture2D(baseTexture, uv).rgba;
 
@@ -108,19 +110,18 @@ void main(void)
 
 	vec4 col = vec4(color.rgb, base.a);
 	col *= gl_Color;
-	if (fogDistance != 0.0) {
-		// Due to a bug in some (older ?) graphics stacks (possibly in the glsl compiler ?),
-		// the fog will only be rendered correctly if the last operation before the
-		// clamp() is an addition. Else, the clamp() seems to be ignored.
-		// E.g. the following won't work:
-		//      float clarity = clamp(fogShadingParameter
-		//		* (fogDistance - length(eyeVec)) / fogDistance), 0.0, 1.0);
-		// As additions usually come for free following a multiplication, the new formula
-		// should be more efficient as well.
-		// Note: clarity = (1 - fogginess)
-		float clarity = clamp(fogShadingParameter
-			- fogShadingParameter * length(eyeVec) / fogDistance, 0.0, 1.0);
-		col = mix(skyBgColor, col, clarity);
-	}
+	// Due to a bug in some (older ?) graphics stacks (possibly in the glsl compiler ?),
+	// the fog will only be rendered correctly if the last operation before the
+	// clamp() is an addition. Else, the clamp() seems to be ignored.
+	// E.g. the following won't work:
+	//      float clarity = clamp(fogShadingParameter
+	//		* (fogDistance - length(eyeVec)) / fogDistance), 0.0, 1.0);
+	// As additions usually come for free following a multiplication, the new formula
+	// should be more efficient as well.
+	// Note: clarity = (1 - fogginess)
+	float clarity = clamp(fogShadingParameter
+		- fogShadingParameter * length(eyeVec) / fogDistance, 0.0, 1.0);
+	col = mix(skyBgColor, col, clarity);
+
 	gl_FragColor = vec4(col.rgb, base.a);
 }
diff --git a/client/shaders/wielded_shader/opengl_vertex.glsl b/client/shaders/wielded_shader/opengl_vertex.glsl
index 86c626896..9f05b833a 100644
--- a/client/shaders/wielded_shader/opengl_vertex.glsl
+++ b/client/shaders/wielded_shader/opengl_vertex.glsl
@@ -1,7 +1,6 @@
 uniform mat4 mWorldViewProj;
 uniform mat4 mWorld;
 
-uniform float dayNightRatio;
 uniform vec3 eyePosition;
 uniform float animationTimer;