OpenGL2: Small glsl shader optimizations, fixes, and cleanup.

15 files changed, 253 insertions, 242 deletions

diff --git a/src/renderergl2/glsl/bokeh_vp.glsl b/src/renderergl2/glsl/bokeh_vp.glsl
index 5ca41600..bdaa74af 100644
--- a/src/renderergl2/glsl/bokeh_vp.glsl
+++ b/src/renderergl2/glsl/bokeh_vp.glsl
@@ -1,4 +1,4 @@
-attribute vec4 attr_Position;
+attribute vec3 attr_Position;
 attribute vec4 attr_TexCoord0;
 
 uniform mat4   u_ModelViewProjectionMatrix;
@@ -8,6 +8,6 @@ varying vec2   var_TexCoords;
 
 void main()
 {
-	gl_Position = u_ModelViewProjectionMatrix * attr_Position;
+	gl_Position = u_ModelViewProjectionMatrix * vec4(attr_Position, 1.0);
 	var_TexCoords = attr_TexCoord0.st;
 }
diff --git a/src/renderergl2/glsl/calclevels4x_vp.glsl b/src/renderergl2/glsl/calclevels4x_vp.glsl
index 5ca41600..bdaa74af 100644
--- a/src/renderergl2/glsl/calclevels4x_vp.glsl
+++ b/src/renderergl2/glsl/calclevels4x_vp.glsl
@@ -1,4 +1,4 @@
-attribute vec4 attr_Position;
+attribute vec3 attr_Position;
 attribute vec4 attr_TexCoord0;
 
 uniform mat4   u_ModelViewProjectionMatrix;
@@ -8,6 +8,6 @@ varying vec2   var_TexCoords;
 
 void main()
 {
-	gl_Position = u_ModelViewProjectionMatrix * attr_Position;
+	gl_Position = u_ModelViewProjectionMatrix * vec4(attr_Position, 1.0);
 	var_TexCoords = attr_TexCoord0.st;
 }
diff --git a/src/renderergl2/glsl/dlight_vp.glsl b/src/renderergl2/glsl/dlight_vp.glsl
index 61531ad6..9566a04c 100644
--- a/src/renderergl2/glsl/dlight_vp.glsl
+++ b/src/renderergl2/glsl/dlight_vp.glsl
@@ -1,4 +1,4 @@
-attribute vec4 attr_Position;
+attribute vec3 attr_Position;
 attribute vec4 attr_TexCoord0;
 attribute vec3 attr_Normal;
 
@@ -48,7 +48,7 @@ vec3 DeformPosition(const vec3 pos, const vec3 normal, const vec2 st)
 	}
 	else if (u_DeformGen == DGEN_WAVE_SQUARE)
 	{
-		func = sign(sin(value * 2.0 * M_PI));
+		func = sign(0.5 - fract(value));
 	}
 	else if (u_DeformGen == DGEN_WAVE_TRIANGLE)
 	{
@@ -62,7 +62,7 @@ vec3 DeformPosition(const vec3 pos, const vec3 normal, const vec2 st)
 	{
 		func = (1.0 - fract(value));
 	}
-	else if (u_DeformGen == DGEN_BULGE)
+	else // if (u_DeformGen == DGEN_BULGE)
 	{
 		func = sin(value);
 	}
@@ -73,16 +73,16 @@ vec3 DeformPosition(const vec3 pos, const vec3 normal, const vec2 st)
 
 void main()
 {
-	vec4 position = attr_Position;
-	vec3 normal = attr_Normal;
+	vec3 position = attr_Position;
+	vec3 normal = attr_Normal * 2.0 - vec3(1.0);
 
 #if defined(USE_DEFORM_VERTEXES)
-	position.xyz = DeformPosition(position.xyz, normal, attr_TexCoord0.st);
+	position = DeformPosition(position, normal, attr_TexCoord0.st);
 #endif
 
-	gl_Position = u_ModelViewProjectionMatrix * position;
+	gl_Position = u_ModelViewProjectionMatrix * vec4(position, 1.0);
 		
-	vec3 dist = u_DlightInfo.xyz - position.xyz;	
+	vec3 dist = u_DlightInfo.xyz - position;
 
 	var_Tex1 = dist.xy * u_DlightInfo.a + vec2(0.5);
 	float dlightmod = step(0.0, dot(dist, normal));
diff --git a/src/renderergl2/glsl/down4x_vp.glsl b/src/renderergl2/glsl/down4x_vp.glsl
index 5ca41600..bdaa74af 100644
--- a/src/renderergl2/glsl/down4x_vp.glsl
+++ b/src/renderergl2/glsl/down4x_vp.glsl
@@ -1,4 +1,4 @@
-attribute vec4 attr_Position;
+attribute vec3 attr_Position;
 attribute vec4 attr_TexCoord0;
 
 uniform mat4   u_ModelViewProjectionMatrix;
@@ -8,6 +8,6 @@ varying vec2   var_TexCoords;
 
 void main()
 {
-	gl_Position = u_ModelViewProjectionMatrix * attr_Position;
+	gl_Position = u_ModelViewProjectionMatrix * vec4(attr_Position, 1.0);
 	var_TexCoords = attr_TexCoord0.st;
 }
diff --git a/src/renderergl2/glsl/fogpass_fp.glsl b/src/renderergl2/glsl/fogpass_fp.glsl
index 91884304..e2ad465b 100644
--- a/src/renderergl2/glsl/fogpass_fp.glsl
+++ b/src/renderergl2/glsl/fogpass_fp.glsl
@@ -5,5 +5,5 @@ varying float var_Scale;
 void main()
 {
 	gl_FragColor = u_Color;
-	gl_FragColor.a *= sqrt(clamp(var_Scale, 0.0, 1.0));
+	gl_FragColor.a = sqrt(clamp(var_Scale, 0.0, 1.0));
 }
diff --git a/src/renderergl2/glsl/fogpass_vp.glsl b/src/renderergl2/glsl/fogpass_vp.glsl
index a07a5fdd..8f7bc728 100644
--- a/src/renderergl2/glsl/fogpass_vp.glsl
+++ b/src/renderergl2/glsl/fogpass_vp.glsl
@@ -1,27 +1,30 @@
-attribute vec4  attr_Position;
+attribute vec3  attr_Position;
 attribute vec3  attr_Normal;
+
 attribute vec4  attr_TexCoord0;
 
-//#if defined(USE_VERTEX_ANIMATION)
-attribute vec4  attr_Position2;
+#if defined(USE_VERTEX_ANIMATION)
+attribute vec3  attr_Position2;
 attribute vec3  attr_Normal2;
-//#endif
+#endif
 
 uniform vec4    u_FogDistance;
 uniform vec4    u_FogDepth;
 uniform float   u_FogEyeT;
 
-//#if defined(USE_DEFORM_VERTEXES)
+#if defined(USE_DEFORM_VERTEXES)
 uniform int     u_DeformGen;
 uniform float   u_DeformParams[5];
-//#endif
+#endif
 
 uniform float   u_Time;
 uniform mat4    u_ModelViewProjectionMatrix;
 
-//#if defined(USE_VERTEX_ANIMATION)
+#if defined(USE_VERTEX_ANIMATION)
 uniform float   u_VertexLerp;
-//#endif
+#endif
+
+uniform vec4  u_Color;
 
 varying float   var_Scale;
 
@@ -57,7 +60,7 @@ vec3 DeformPosition(const vec3 pos, const vec3 normal, const vec2 st)
 	}
 	else if (u_DeformGen == DGEN_WAVE_SQUARE)
 	{
-		func = sign(sin(value * 2.0 * M_PI));
+		func = sign(0.5 - fract(value));
 	}
 	else if (u_DeformGen == DGEN_WAVE_TRIANGLE)
 	{
@@ -71,7 +74,7 @@ vec3 DeformPosition(const vec3 pos, const vec3 normal, const vec2 st)
 	{
 		func = (1.0 - fract(value));
 	}
-	else if (u_DeformGen == DGEN_BULGE)
+	else // if (u_DeformGen == DGEN_BULGE)
 	{
 		func = sin(value);
 	}
@@ -80,15 +83,15 @@ vec3 DeformPosition(const vec3 pos, const vec3 normal, const vec2 st)
 }
 #endif
 
-float CalcFog(vec4 position)
+float CalcFog(vec3 position)
 {
-	float s = dot(position, u_FogDistance) * 8.0;
-	float t = dot(position, u_FogDepth);
+	float s = dot(vec4(position, 1.0), u_FogDistance) * 8.0;
+	float t = dot(vec4(position, 1.0), u_FogDepth);
+
+	float eyeOutside = float(u_FogEyeT < 0.0);
+	float fogged = float(t >= eyeOutside);
 
-	float eyeOutside = step(0.0, -u_FogEyeT);
-	float fogged = step(eyeOutside, t);
-		
-	t = max(t, 1e-6);
+	t += 1e-6;
 	t *= fogged / (t - u_FogEyeT * eyeOutside);
 
 	return s * t;
@@ -97,18 +100,19 @@ float CalcFog(vec4 position)
 void main()
 {
 #if defined(USE_VERTEX_ANIMATION)
-	vec4 position = mix(attr_Position, attr_Position2, u_VertexLerp);
-	vec3 normal = normalize(mix(attr_Normal, attr_Normal2, u_VertexLerp));
+	vec3 position = mix(attr_Position, attr_Position2, u_VertexLerp);
+	vec3 normal   = mix(attr_Normal,   attr_Normal2,   u_VertexLerp);
+	normal = normalize(normal - vec3(0.5));
 #else
-	vec4 position = attr_Position;
-	vec3 normal = attr_Normal;
+	vec3 position = attr_Position;
+	vec3 normal   = attr_Normal * 2.0 - vec3(1.0);
 #endif
 
 #if defined(USE_DEFORM_VERTEXES)
 	position.xyz = DeformPosition(position.xyz, normal, attr_TexCoord0.st);
 #endif
 
-	gl_Position = u_ModelViewProjectionMatrix * position;
+	gl_Position = u_ModelViewProjectionMatrix * vec4(position, 1.0);
 
-	var_Scale = CalcFog(position);
+	var_Scale = CalcFog(position) * u_Color.a * u_Color.a;
 }
diff --git a/src/renderergl2/glsl/generic_fp.glsl b/src/renderergl2/glsl/generic_fp.glsl
index 997d4daa..f485797f 100644
--- a/src/renderergl2/glsl/generic_fp.glsl
+++ b/src/renderergl2/glsl/generic_fp.glsl
@@ -37,6 +37,8 @@ void main()
 	{
 		color = color2;
 	}
+	
+	//color = color * (u_Texture1Env.xxxx + color2 * u_Texture1Env.z) + color2 * u_Texture1Env.y;
 #endif
 
 	gl_FragColor = color * var_Color;
diff --git a/src/renderergl2/glsl/generic_vp.glsl b/src/renderergl2/glsl/generic_vp.glsl
index b8cfff07..0e5b38b4 100644
--- a/src/renderergl2/glsl/generic_vp.glsl
+++ b/src/renderergl2/glsl/generic_vp.glsl
@@ -89,11 +89,11 @@ vec3 DeformPosition(const vec3 pos, const vec3 normal, const vec2 st)
 	}
 	else if (u_DeformGen == DGEN_WAVE_SQUARE)
 	{
-		func = sign(sin(value * 2.0 * M_PI));
+		func = sign(fract(0.5 - value));
 	}
 	else if (u_DeformGen == DGEN_WAVE_TRIANGLE)
 	{
-		func = 1.0 - abs(4.0 * fract(value + 0.25) - 2.0);
+		func = abs(fract(value + 0.75) - 0.5) * 4.0 - 1.0;
 	}
 	else if (u_DeformGen == DGEN_WAVE_SAWTOOTH)
 	{
@@ -103,7 +103,7 @@ vec3 DeformPosition(const vec3 pos, const vec3 normal, const vec2 st)
 	{
 		func = (1.0 - fract(value));
 	}
-	else if (u_DeformGen == DGEN_BULGE)
+	else // if (u_DeformGen == DGEN_BULGE)
 	{
 		func = sin(value);
 	}
@@ -124,7 +124,9 @@ vec2 GenTexCoords(int TCGen, vec3 position, vec3 normal, vec3 TCGenVector0, vec3
 	else if (TCGen == TCGEN_ENVIRONMENT_MAPPED)
 	{
 		vec3 viewer = normalize(u_LocalViewOrigin - position);
-		tex = -reflect(viewer, normal).yz * vec2(0.5, -0.5) + 0.5;
+		vec2 ref = reflect(viewer, normal).yz;
+		tex.s = ref.x * -0.5 + 0.5;
+		tex.t = ref.y *  0.5 + 0.5;
 	}
 	else if (TCGen == TCGEN_VECTOR)
 	{
@@ -139,13 +141,14 @@ vec2 GenTexCoords(int TCGen, vec3 position, vec3 normal, vec3 TCGenVector0, vec3
 vec2 ModTexCoords(vec2 st, vec3 position, vec4 texMatrix, vec4 offTurb)
 {
 	float amplitude = offTurb.z;
-	float phase = offTurb.w;
-	vec2 st2 = vec2(dot(st, texMatrix.xz), dot(st, texMatrix.yw)) + offTurb.xy;
+	float phase = offTurb.w * 2.0 * M_PI;
+	vec2 st2;
+	st2.x = st.x * texMatrix.x + (st.y * texMatrix.z + offTurb.x);
+	st2.y = st.x * texMatrix.y + (st.y * texMatrix.w + offTurb.y);
 
-	vec3 offsetPos = position / 1024.0;
-	offsetPos.x += offsetPos.z;
+	vec2 offsetPos = vec2(position.x + position.z, position.y);
 	
-	vec2 texOffset = sin((offsetPos.xy + vec2(phase)) * 2.0 * M_PI);
+	vec2 texOffset = sin(offsetPos * (2.0 * M_PI / 1024.0) + vec2(phase));
 	
 	return st2 + texOffset * amplitude;	
 }
@@ -186,13 +189,13 @@ vec4 CalcColor(vec3 position, vec3 normal)
 #if defined(USE_FOG)
 float CalcFog(vec3 position)
 {
-	float s = (dot(position, u_FogDistance.xyz) + u_FogDistance.w) * 8.0;
-	float t = dot(position, u_FogDepth.xyz) + u_FogDepth.w;
+	float s = dot(vec4(position, 1.0), u_FogDistance) * 8.0;
+	float t = dot(vec4(position, 1.0), u_FogDepth);
 
-	float eyeOutside = step(0.0, -u_FogEyeT);
-	float fogged = step(eyeOutside, t);
-		
-	t = max(t, 1e-6);
+	float eyeOutside = float(u_FogEyeT < 0.0);
+	float fogged = float(t < eyeOutside);
+
+	t += 1e-6;
 	t *= fogged / (t - u_FogEyeT * eyeOutside);
 
 	return s * t;
@@ -202,8 +205,9 @@ float CalcFog(vec3 position)
 void main()
 {
 #if defined(USE_VERTEX_ANIMATION)
-	vec3 position  = mix(attr_Position,  attr_Position2,  u_VertexLerp);
-	vec3 normal    = normalize(mix(attr_Normal,    attr_Normal2,    u_VertexLerp) * 2.0 - vec3(1.0));
+	vec3 position  = mix(attr_Position, attr_Position2, u_VertexLerp);
+	vec3 normal    = mix(attr_Normal,   attr_Normal2,   u_VertexLerp);
+	normal = normalize(normal - vec3(0.5));
 #else
 	vec3 position  = attr_Position;
 	vec3 normal    = attr_Normal * 2.0 - vec3(1.0);
diff --git a/src/renderergl2/glsl/lightall_fp.glsl b/src/renderergl2/glsl/lightall_fp.glsl
index b937483e..d134e409 100644
--- a/src/renderergl2/glsl/lightall_fp.glsl
+++ b/src/renderergl2/glsl/lightall_fp.glsl
@@ -166,22 +166,41 @@ vec3 EnvironmentBRDF(float gloss, float NE, vec3 specular)
 	float a1 = t.w;
 	return clamp( a0 + specular * ( a1 - a0 ), 0.0, 1.0 );
   #elif 0
-    // from http://seblagarde.wordpress.com/2011/08/17/hello-world/
+	// from http://seblagarde.wordpress.com/2011/08/17/hello-world/
 	return mix(specular.rgb, max(specular.rgb, vec3(gloss)), CalcFresnel(NE));
   #else
-    // from http://advances.realtimerendering.com/s2011/Lazarov-Physically-Based-Lighting-in-Black-Ops%20%28Siggraph%202011%20Advances%20in%20Real-Time%20Rendering%20Course%29.pptx
+	// from http://advances.realtimerendering.com/s2011/Lazarov-Physically-Based-Lighting-in-Black-Ops%20%28Siggraph%202011%20Advances%20in%20Real-Time%20Rendering%20Course%29.pptx
 	return mix(specular.rgb, vec3(1.0), CalcFresnel(NE) / (4.0 - 3.0 * gloss));
   #endif
 }
 
 float CalcBlinn(float NH, float shininess)
 {
+#if defined(USE_BLINN) || defined(USE_BLINN_FRESNEL)
+	// Normalized Blinn-Phong
+	float norm = shininess * 0.125    + 1.0;
+#elif defined(USE_MCAULEY)
+	// Cook-Torrance as done by Stephen McAuley
+	// http://blog.selfshadow.com/publications/s2012-shading-course/mcauley/s2012_pbs_farcry3_notes_v2.pdf
+	float norm = shininess * 0.25     + 0.125;
+#elif defined(USE_GOTANDA)
+	// Neumann-Neumann as done by Yoshiharu Gotanda
+	// http://research.tri-ace.com/Data/s2012_beyond_CourseNotes.pdf
+	float norm = shininess * 0.124858 + 0.269182;
+#elif defined(USE_LAZAROV)
+	// Cook-Torrance as done by Dimitar Lazarov
+	// http://blog.selfshadow.com/publications/s2013-shading-course/lazarov/s2013_pbs_black_ops_2_notes.pdf
+	float norm = shininess * 0.125    + 0.25;
+#else
+	float norm = 1.0;
+#endif
+
 #if 0
-    // from http://seblagarde.wordpress.com/2012/06/03/spherical-gaussien-approximation-for-blinn-phong-phong-and-fresnel/
+	// from http://seblagarde.wordpress.com/2012/06/03/spherical-gaussien-approximation-for-blinn-phong-phong-and-fresnel/
 	float a = shininess + 0.775;
-    return exp(a * NH - a);
+	return norm * exp(a * NH - a);
 #else
-	return pow(NH, shininess);
+	return norm * pow(NH, shininess);
 #endif
 }
 
@@ -215,145 +234,122 @@ float CalcFresnel(float EH)
 
 float CalcVisibility(float NH, float NL, float NE, float EH, float gloss)
 {
-#if 1
-	// From http://blog.selfshadow.com/publications/s2013-shading-course/lazarov/s2013_pbs_black_ops_2_notes.pdf
+#if defined(USE_GOTANDA)
+	// Neumann-Neumann as done by Yoshiharu Gotanda
+	// http://research.tri-ace.com/Data/s2012_beyond_CourseNotes.pdf
+	return 1.0 / max(max(NL, NE), EPSILON);
+#elif defined(USE_LAZAROV)
+	// Cook-Torrance as done by Dimitar Lazarov
+	// http://blog.selfshadow.com/publications/s2013-shading-course/lazarov/s2013_pbs_black_ops_2_notes.pdf
 	float k = min(1.0, gloss + 0.545);
-	return 1.0 / (k * EH * EH + (1.0 - k));
-#elif 0
+	return 1.0 / (k * (EH * EH - 1.0) + 1.0);
+#elif defined(USE_GGX)
 	float roughness = exp2(gloss * -6.5);
 
-  #if defined(USE_GGX)
-	// From http://blog.selfshadow.com/publications/s2013-shading-course/karis/s2013_pbs_epic_notes_v2.pdf
-	float k = roughness + 1.0;
-	k *= k * 0.125;
-  #else
-    float k = roughness;
-  #endif
 	// Modified from http://blog.selfshadow.com/publications/s2013-shading-course/karis/s2013_pbs_epic_notes_v2.pdf
 	// NL, NE in numerator factored out from cook-torrance
+	float k = roughness + 1.0;
+	k *= k * 0.125;
+
 	float k2 = 1.0 - k;
 	
 	float invGeo1 = NL * k2 + k;
 	float invGeo2 = NE * k2 + k;
-	
+
 	return 1.0 / (invGeo1 * invGeo2);
 #else
-	float geo = 2.0 * NH * min(NE, NL);
-	geo /= max(EH, geo);
-	
-	return geo;
+	return 1.0;
 #endif
 }
 
 
 vec3 CalcSpecular(vec3 specular, float NH, float NL, float NE, float EH, float gloss, float shininess)
 {
-	float blinn = CalcBlinn(NH, shininess);
+#if defined(USE_GGX)
+	float distrib = CalcGGX(NH, gloss);
+#else
+	float distrib = CalcBlinn(NH, shininess);
+#endif
+
+#if defined(USE_BLINN)
+	vec3 fSpecular = specular;
+#else
 	vec3 fSpecular = mix(specular, vec3(1.0), CalcFresnel(EH));
+#endif
+
 	float vis = CalcVisibility(NH, NL, NE, EH, gloss);
 
-  #if defined(USE_BLINN)
-    // Normalized Blinn-Phong
-	return specular  * blinn * (shininess * 0.125    + 1.0);
-  #elif defined(USE_BLINN_FRESNEL)
-    // Normalized Blinn-Phong with Fresnel
-	return fSpecular * blinn * (shininess * 0.125    + 1.0);
-  #elif defined(USE_MCAULEY)
-    // Cook-Torrance as done by Stephen McAuley
-	// http://blog.selfshadow.com/publications/s2012-shading-course/mcauley/s2012_pbs_farcry3_notes_v2.pdf
-	return fSpecular * blinn * (shininess * 0.25     + 0.125);
-  #elif defined(USE_GOTANDA)
-    // Neumann-Neumann as done by Yoshiharu Gotanda
-	// http://research.tri-ace.com/Data/s2012_beyond_CourseNotes.pdf
-	return fSpecular * blinn * (shininess * 0.124858 + 0.269182) / max(max(NL, NE), EPSILON);
-  #elif defined(USE_LAZAROV)
-    // Cook-Torrance as done by Dimitar Lazarov
-	// http://blog.selfshadow.com/publications/s2013-shading-course/lazarov/s2013_pbs_black_ops_2_notes.pdf
-	return fSpecular * blinn * (shininess * 0.125    + 0.25)     * vis;
-  #endif
-  
-	return vec3(0.0);
+	return fSpecular * (distrib * vis);
 }
 
 
-float CalcLightAttenuation(vec3 dir, float sqrRadius)
+float CalcLightAttenuation(float point, float normDist)
 {
-	// point light at >0 radius, directional otherwise
-	float point = float(sqrRadius > 0.0);
-
-	// inverse square light
-	float attenuation = sqrRadius / dot(dir, dir);
-
-	// zero light at radius, approximating q3 style
+	// zero light at 1.0, approximating q3 style
 	// also don't attenuate directional light
-	attenuation = (0.5 * attenuation - 1.5) * point + 1.0;
-	
+	float attenuation = (0.5 * normDist - 1.5) * point + 1.0;
+
 	// clamp attenuation
 	#if defined(NO_LIGHT_CLAMP)
 	attenuation = max(attenuation, 0.0);
 	#else
 	attenuation = clamp(attenuation, 0.0, 1.0);
 	#endif
-	
+
 	return attenuation;
 }
 
 // from http://www.thetenthplanet.de/archives/1180
 mat3 cotangent_frame( vec3 N, vec3 p, vec2 uv )
 {
-    // get edge vectors of the pixel triangle
-    vec3 dp1 = dFdx( p );
-    vec3 dp2 = dFdy( p );
-    vec2 duv1 = dFdx( uv );
-    vec2 duv2 = dFdy( uv );
- 
-    // solve the linear system
-    vec3 dp2perp = cross( dp2, N );
-    vec3 dp1perp = cross( N, dp1 );
-    vec3 T = dp2perp * duv1.x + dp1perp * duv2.x;
-    vec3 B = dp2perp * duv1.y + dp1perp * duv2.y;
- 
-    // construct a scale-invariant frame 
-    float invmax = inversesqrt( max( dot(T,T), dot(B,B) ) );
-    return mat3( T * invmax, B * invmax, N );
+	// get edge vectors of the pixel triangle
+	vec3 dp1 = dFdx( p );
+	vec3 dp2 = dFdy( p );
+	vec2 duv1 = dFdx( uv );
+	vec2 duv2 = dFdy( uv );
+
+	// solve the linear system
+	vec3 dp2perp = cross( dp2, N );
+	vec3 dp1perp = cross( N, dp1 );
+	vec3 T = dp2perp * duv1.x + dp1perp * duv2.x;
+	vec3 B = dp2perp * duv1.y + dp1perp * duv2.y;
+
+	// construct a scale-invariant frame 
+	float invmax = inversesqrt( max( dot(T,T), dot(B,B) ) );
+	return mat3( T * invmax, B * invmax, N );
 }
 
 void main()
 {
 	vec3 L, N, E, H;
 	float NL, NH, NE, EH;
-	
-#if (defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)) || defined(USE_PARALLAXMAP)
+
+#if defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
   #if defined(USE_VERT_TANGENT_SPACE)
 	mat3 tangentToWorld = mat3(var_Tangent.xyz, var_Bitangent.xyz, var_Normal.xyz);
+	E = vec3(var_Normal.w, var_Tangent.w, var_Bitangent.w);
   #else
 	mat3 tangentToWorld = cotangent_frame(var_Normal, -var_ViewDir, var_TexCoords.xy);
+	E = var_ViewDir;
   #endif
-#endif
 
-#if defined(USE_DELUXEMAP)
-	L = texture2D(u_DeluxeMap, var_TexCoords.zw).xyz - vec3(0.5);
-	L = L * u_EnableTextures.y + var_LightDir.xyz;
-#elif defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
-	L = var_LightDir.xyz;
-#endif
+	E = normalize(E);
 
-#if (defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)) || defined(USE_PARALLAXMAP)
-  #if defined(USE_VERT_TANGENT_SPACE)
-	E = normalize(vec3(var_Normal.w, var_Tangent.w, var_Bitangent.w));
-  #else
-    E = normalize(var_ViewDir);
+	L = var_LightDir.xyz;
+  #if defined(USE_DELUXEMAP)
+	L += (texture2D(u_DeluxeMap, var_TexCoords.zw).xyz - vec3(0.5)) * u_EnableTextures.y;
   #endif
+	float sqrLightDist = dot(L, L);
 #endif
 
 #if defined(USE_LIGHTMAP)
-	vec4 lightSample = texture2D(u_LightMap, var_TexCoords.zw).rgba;
+	vec4 lightSample = texture2D(u_LightMap, var_TexCoords.zw);
+	vec3 lightColor = lightSample.rgb;
   #if defined(RGBM_LIGHTMAP)
-	lightSample.rgb *= 32.0 * lightSample.a;
+	lightColor *= 32.0 * lightSample.a;
   #endif
-	vec3 lightColor = lightSample.rgb;
 #elif defined(USE_LIGHT_VECTOR) && !defined(USE_FAST_LIGHT)
-	vec3 lightColor   = u_DirectedLight * CalcLightAttenuation(L, var_LightDir.w);
+	vec3 lightColor   = u_DirectedLight * CalcLightAttenuation(float(var_LightDir.w > 0.0), var_LightDir.w / sqrLightDist);
 	vec3 ambientColor = u_AmbientLight;
 #elif defined(USE_LIGHT_VERTEX) && !defined(USE_FAST_LIGHT)
 	vec3 lightColor = var_LightColor;
@@ -383,21 +379,22 @@ void main()
 	N.xy = texture2D(u_NormalMap, texCoords).rg - vec2(0.5);
     #endif
 	N.xy *= u_EnableTextures.x;
-	N.z = sqrt(0.25 - dot(N.xy, N.xy));
-    N = normalize(tangentToWorld * N);
+	N.z = sqrt((0.25 - N.x * N.x) - N.y * N.y);
+	N = tangentToWorld * N;
   #else
-    N = normalize(var_Normal.xyz);
+	N = var_Normal.xyz;
   #endif
-  
-	L = normalize(L);
+
+	N = normalize(N);
+	L /= sqrt(sqrLightDist);
 
   #if defined(USE_SHADOWMAP) 
 	vec2 shadowTex = gl_FragCoord.xy * r_FBufScale;
 	float shadowValue = texture2D(u_ShadowMap, shadowTex).r;
 
 	// surfaces not facing the light are always shadowed
-	shadowValue *= step(0.0, dot(var_Normal.xyz, var_PrimaryLightDir.xyz));
-  
+	shadowValue *= float(dot(var_Normal.xyz, var_PrimaryLightDir.xyz) > 0.0);
+
     #if defined(SHADOWMAP_MODULATE)
 	//vec3 shadowColor = min(u_PrimaryLightAmbient, lightColor);
 	vec3 shadowColor = u_PrimaryLightAmbient * lightColor;
@@ -428,44 +425,41 @@ void main()
 	NL = clamp(dot(N, L), 0.0, 1.0);
 	NE = clamp(dot(N, E), 0.0, 1.0);
 
+	vec4 specular = vec4(1.0);
   #if defined(USE_SPECULARMAP)
-	vec4 specular = texture2D(u_SpecularMap, texCoords);
-	specular = (specular - vec4(1.0)) * u_EnableTextures.z + vec4(1.0);
+	specular += texture2D(u_SpecularMap, texCoords) * u_EnableTextures.z - u_EnableTextures.zzzz;
     #if defined(USE_GAMMA2_TEXTURES)
 	specular.rgb *= specular.rgb;
     #endif
-  #else
-	vec4 specular = vec4(1.0);
   #endif
 
 	specular *= u_MaterialInfo.xxxy;
-	
+
 	float gloss = specular.a;
 	float shininess = exp2(gloss * 13.0);
 
   #if defined(SPECULAR_IS_METALLIC)
-    // diffuse is actually base color, and red of specular is metallicness
+	// diffuse is actually base color, and red of specular is metallicness
 	float metallic = specular.r;
-	
-	specular.rgb = vec3(0.04) + 0.96 * diffuse.rgb * metallic;
+
+	specular.rgb = (0.96 * metallic) * diffuse.rgb + vec3(0.04);
 	diffuse.rgb *= 1.0 - metallic;
   #else
 	// adjust diffuse by specular reflectance, to maintain energy conservation
 	diffuse.rgb *= vec3(1.0) - specular.rgb;
   #endif
-  
-	
+
 	reflectance = CalcDiffuse(diffuse.rgb, N, L, E, NE, NL, shininess);
 
   #if defined(r_deluxeSpecular) || defined(USE_LIGHT_VECTOR)
 	float adjGloss = gloss;
 	float adjShininess = shininess;
-	
-	#if !defined(USE_LIGHT_VECTOR)
+
+    #if !defined(USE_LIGHT_VECTOR)
 	adjGloss *= r_deluxeSpecular;
 	adjShininess = exp2(adjGloss * 13.0);
-	#endif
-	
+    #endif
+
 	H = normalize(L + E);
 
 	EH = clamp(dot(E, H), 0.0, 1.0);
@@ -477,16 +471,16 @@ void main()
 	reflectance += CalcSpecular(specular.rgb, NH, NL, NE, EH, adjGloss, adjShininess);
     #endif
   #endif
-	
-	gl_FragColor.rgb  = lightColor   * reflectance * NL;  
+
+	gl_FragColor.rgb  = lightColor   * reflectance * NL;
 	gl_FragColor.rgb += ambientColor * (diffuse.rgb + specular.rgb);
-	
+
   #if defined(USE_CUBEMAP)
 	reflectance = EnvironmentBRDF(gloss, NE, specular.rgb);
 
 	vec3 R = reflect(E, N);
 
-    vec3 cubeLightColor = textureCubeLod(u_CubeMap, R, 7.0 - gloss * 7.0).rgb * u_EnableTextures.w;
+	vec3 cubeLightColor = textureCubeLod(u_CubeMap, R, 7.0 - gloss * 7.0).rgb * u_EnableTextures.w;
 
 	#if defined(USE_LIGHTMAP)
 	cubeLightColor *= lightSample.rgb;
@@ -495,29 +489,40 @@ void main()
 	#else
 	cubeLightColor *= lightColor * NL + ambientColor;
 	#endif
-	
+
 	//gl_FragColor.rgb += diffuse.rgb * textureCubeLod(u_CubeMap, N, 7.0).rgb * u_EnableTextures.w;
 	gl_FragColor.rgb += cubeLightColor * reflectance;
   #endif
 
   #if defined(USE_PRIMARY_LIGHT)
-	L = var_PrimaryLightDir.xyz; //normalize(var_PrimaryLightDir.xyz);
-	NL = clamp(dot(N, L), 0.0, 1.0);
+	vec3 L2, H2;
+	float NL2, EH2, NH2;
 
-	H = normalize(L + E);
-	EH = clamp(dot(E, H), 0.0, 1.0);
-	NH = clamp(dot(N, H), 0.0, 1.0);
+	L2 = var_PrimaryLightDir.xyz;
 
-	reflectance  = CalcDiffuse(diffuse.rgb, N, L, E, NE, NL, shininess);
-	reflectance += CalcSpecular(specular.rgb, NH, NL, NE, EH, gloss, shininess);
+	// enable when point lights are supported as primary lights
+	//sqrLightDist = dot(L2, L2);
+	//L2 /= sqrt(sqrLightDist);
+
+	NL2 = clamp(dot(N, L2), 0.0, 1.0);
+
+	H2 = normalize(L2 + E);
+	EH2 = clamp(dot(E, H2), 0.0, 1.0);
+	NH2 = clamp(dot(N, H2), 0.0, 1.0);
+
+	reflectance  = CalcDiffuse(diffuse.rgb, N, L2, E, NE, NL2, shininess);
+	reflectance += CalcSpecular(specular.rgb, NH2, NL2, NE, EH2, gloss, shininess);
+
+	lightColor = u_PrimaryLightColor;
+
+	// enable when point lights are supported as primary lights
+	//lightColor *= CalcLightAttenuation(float(u_PrimaryLightDir.w > 0.0), u_PrimaryLightDir.w / sqrLightDist);
 
-	lightColor = u_PrimaryLightColor; // * CalcLightAttenuation(L, u_PrimaryLightDir.w);
-	
     #if defined(USE_SHADOWMAP)
 	lightColor *= shadowValue;
     #endif
 
-	gl_FragColor.rgb += lightColor * reflectance * NL;
+	gl_FragColor.rgb += lightColor * reflectance * NL2;
   #endif
 
 	gl_FragColor.a = diffuse.a;
diff --git a/src/renderergl2/glsl/lightall_vp.glsl b/src/renderergl2/glsl/lightall_vp.glsl
index 67628c7f..2e1c899c 100644
--- a/src/renderergl2/glsl/lightall_vp.glsl
+++ b/src/renderergl2/glsl/lightall_vp.glsl
@@ -14,8 +14,7 @@ attribute vec4 attr_Tangent;
 attribute vec3 attr_Position2;
 attribute vec3 attr_Normal2;
   #if defined(USE_VERT_TANGENT_SPACE)
-attribute vec3 attr_Tangent2;
-attribute vec3 attr_Bitangent2;
+attribute vec4 attr_Tangent2;
   #endif
 #endif
 
@@ -108,13 +107,15 @@ vec2 GenTexCoords(int TCGen, vec3 position, vec3 normal, vec3 TCGenVector0, vec3
 	else if (TCGen == TCGEN_ENVIRONMENT_MAPPED)
 	{
 		vec3 viewer = normalize(u_LocalViewOrigin - position);
-		tex = -reflect(viewer, normal).yz * vec2(0.5, -0.5) + 0.5;
+		vec2 ref = reflect(viewer, normal).yz;
+		tex.s = ref.x * -0.5 + 0.5;
+		tex.t = ref.y *  0.5 + 0.5;
 	}
 	else if (TCGen == TCGEN_VECTOR)
 	{
 		tex = vec2(dot(position, TCGenVector0), dot(position, TCGenVector1));
 	}
-	
+
 	return tex;
 }
 #endif
@@ -123,38 +124,33 @@ vec2 GenTexCoords(int TCGen, vec3 position, vec3 normal, vec3 TCGenVector0, vec3
 vec2 ModTexCoords(vec2 st, vec3 position, vec4 texMatrix, vec4 offTurb)
 {
 	float amplitude = offTurb.z;
-	float phase = offTurb.w;
-	vec2 st2 = vec2(dot(st, texMatrix.xz), dot(st, texMatrix.yw)) + offTurb.xy;
-
-	vec3 offsetPos = position / 1024.0;
-	offsetPos.x += offsetPos.z;
-	
-	vec2 texOffset = sin((offsetPos.xy + vec2(phase)) * 2.0 * M_PI);
-	
+	float phase = offTurb.w * 2.0 * M_PI;
+	vec2 st2;
+	st2.x = st.x * texMatrix.x + (st.y * texMatrix.z + offTurb.x);
+	st2.y = st.x * texMatrix.y + (st.y * texMatrix.w + offTurb.y);
+
+	vec2 offsetPos = vec2(position.x + position.z, position.y);
+
+	vec2 texOffset = sin(offsetPos * (2.0 * M_PI / 1024.0) + vec2(phase));
+
 	return st2 + texOffset * amplitude;	
 }
 #endif
 
 
-float CalcLightAttenuation(vec3 dir, float sqrRadius)
+float CalcLightAttenuation(float point, float normDist)
 {
-	// point light at >0 radius, directional otherwise
-	float point = float(sqrRadius > 0.0);
-
-	// inverse square light
-	float attenuation = sqrRadius / dot(dir, dir);
-
-	// zero light at radius, approximating q3 style
+	// zero light at 1.0, approximating q3 style
 	// also don't attenuate directional light
-	attenuation = (0.5 * attenuation - 1.5) * point + 1.0;
-	
+	float attenuation = (0.5 * normDist - 1.5) * point + 1.0;
+
 	// clamp attenuation
 	#if defined(NO_LIGHT_CLAMP)
 	attenuation = max(attenuation, 0.0);
 	#else
 	attenuation = clamp(attenuation, 0.0, 1.0);
 	#endif
-	
+
 	return attenuation;
 }
 
@@ -162,22 +158,22 @@ float CalcLightAttenuation(vec3 dir, float sqrRadius)
 void main()
 {
 #if defined(USE_VERTEX_ANIMATION)
-	vec3 position  = mix(attr_Position,  attr_Position2,  u_VertexLerp);
-	vec3 normal    = normalize(mix(attr_Normal,    attr_Normal2,    u_VertexLerp) * 2.0 - vec3(1.0));
+	vec3 position  = mix(attr_Position,    attr_Position2,    u_VertexLerp);
+	vec3 normal    = mix(attr_Normal,      attr_Normal2,      u_VertexLerp);
   #if defined(USE_VERT_TANGENT_SPACE) && defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
-	vec3 tangent   = normalize(mix(attr_Tangent.xyz,   attr_Tangent2.xyz,   u_VertexLerp) * 2.0 - vec3(1.0));
+	vec3 tangent   = mix(attr_Tangent.xyz, attr_Tangent2.xyz, u_VertexLerp);
   #endif
 #else
 	vec3 position  = attr_Position;
-	vec3 normal    = attr_Normal    * 2.0 - vec3(1.0);
+	vec3 normal    = attr_Normal;
   #if defined(USE_VERT_TANGENT_SPACE) && defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
-	vec3 tangent   = attr_Tangent.xyz * 2.0 - vec3(1.0);
+	vec3 tangent   = attr_Tangent.xyz;
   #endif
 #endif
 
+	normal  = normal  * 2.0 - vec3(1.0);
 #if defined(USE_VERT_TANGENT_SPACE) && defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
-  vec3 bitangent = cross(normal, tangent);
-  bitangent *= attr_Tangent.w * 2.0 - 1.0;
+	tangent = tangent * 2.0 - vec3(1.0);
 #endif
 
 #if defined(USE_TCGEN)
@@ -195,17 +191,20 @@ void main()
 	gl_Position = u_ModelViewProjectionMatrix * vec4(position, 1.0);
 
 #if defined(USE_MODELMATRIX)
-	position  = (u_ModelMatrix * vec4(position,  1.0)).xyz;
-	normal    = (u_ModelMatrix * vec4(normal,    0.0)).xyz;
-  #if defined(USE_VERT_TANGENT_SPACE)
-	tangent   = (u_ModelMatrix * vec4(tangent,   0.0)).xyz;
-	bitangent = (u_ModelMatrix * vec4(bitangent, 0.0)).xyz;
+	position  = (u_ModelMatrix * vec4(position, 1.0)).xyz;
+	normal    = (u_ModelMatrix * vec4(normal,   0.0)).xyz;
+  #if defined(USE_VERT_TANGENT_SPACE) && defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
+	tangent   = (u_ModelMatrix * vec4(tangent,  0.0)).xyz;
   #endif
 #endif
 
+#if defined(USE_VERT_TANGENT_SPACE) && defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
+	vec3 bitangent = cross(normal, tangent) * (attr_Tangent.w * 2.0 - 1.0);
+#endif
+
 #if defined(USE_LIGHT_VECTOR)
 	vec3 L = u_LightOrigin.xyz - (position * u_LightOrigin.w);
-#elif defined(USE_LIGHT) 
+#elif defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
 	vec3 L = attr_LightDirection * 2.0 - vec3(1.0);
   #if defined(USE_MODELMATRIX)
 	L = (u_ModelMatrix * vec4(L, 0.0)).xyz;
@@ -215,7 +214,7 @@ void main()
 #if defined(USE_LIGHTMAP)
 	var_TexCoords.zw = attr_TexCoord1.st;
 #endif
-	
+
 	var_Color = u_VertColor * attr_Color + u_BaseColor;
 #if defined(USE_LIGHT_VERTEX) && !defined(USE_FAST_LIGHT)
 	var_LightColor = var_Color.rgb;
@@ -223,10 +222,11 @@ void main()
 #endif
 
 #if defined(USE_LIGHT_VECTOR) && defined(USE_FAST_LIGHT)
-	float attenuation = CalcLightAttenuation(L, u_LightRadius * u_LightRadius);
-	float NL = clamp(dot(normal, normalize(L)), 0.0, 1.0);
+	float sqrLightDist = dot(L, L);
+	float attenuation = CalcLightAttenuation(u_LightOrigin.w, u_LightRadius * u_LightRadius / sqrLightDist);
+	float NL = clamp(dot(normalize(normal), L) / sqrt(sqrLightDist), 0.0, 1.0);
 
-	var_Color.rgb *= u_DirectedLight * attenuation * NL + u_AmbientLight;
+	var_Color.rgb *= u_DirectedLight * (attenuation * NL) + u_AmbientLight;
 #endif
 
 #if defined(USE_PRIMARY_LIGHT) || defined(USE_SHADOWMAP)
@@ -241,15 +241,12 @@ void main()
 	var_LightDir = vec4(L, 0.0);
   #endif
   #if defined(USE_DELUXEMAP)
-    var_LightDir *= 1.0 - u_EnableTextures.y;
+	var_LightDir -= u_EnableTextures.y * var_LightDir;
   #endif
 #endif
 
 #if defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
 	vec3 viewDir = u_ViewOrigin - position;
-#endif
-
-#if defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
   #if defined(USE_VERT_TANGENT_SPACE)
 	// store view direction in tangent space to save on varyings
 	var_Normal    = vec4(normal,    viewDir.x);
diff --git a/src/renderergl2/glsl/pshadow_vp.glsl b/src/renderergl2/glsl/pshadow_vp.glsl
index 0e0e3b3d..0f9940cd 100644
--- a/src/renderergl2/glsl/pshadow_vp.glsl
+++ b/src/renderergl2/glsl/pshadow_vp.glsl
@@ -1,4 +1,4 @@
-attribute vec4 attr_Position;
+attribute vec3 attr_Position;
 attribute vec3 attr_Normal;
 
 uniform mat4   u_ModelViewProjectionMatrix;
@@ -8,10 +8,8 @@ varying vec3   var_Normal;
 
 void main()
 {
-	vec4 position  = attr_Position;
+	gl_Position = u_ModelViewProjectionMatrix * vec4(attr_Position, 1.0);
 
-	gl_Position = u_ModelViewProjectionMatrix * position;
-
-	var_Position  = position.xyz;
-	var_Normal    = attr_Normal;
+	var_Position  = attr_Position;
+	var_Normal    = attr_Normal * 2.0 - vec3(1.0);
 }
diff --git a/src/renderergl2/glsl/shadowfill_vp.glsl b/src/renderergl2/glsl/shadowfill_vp.glsl
index af5a14ff..7a5cc571 100644
--- a/src/renderergl2/glsl/shadowfill_vp.glsl
+++ b/src/renderergl2/glsl/shadowfill_vp.glsl
@@ -1,9 +1,9 @@
-attribute vec4  attr_Position;
+attribute vec3  attr_Position;
 attribute vec3  attr_Normal;
 attribute vec4  attr_TexCoord0;
 
 //#if defined(USE_VERTEX_ANIMATION)
-attribute vec4  attr_Position2;
+attribute vec3  attr_Position2;
 attribute vec3  attr_Normal2;
 //#endif
 
@@ -54,7 +54,7 @@ vec3 DeformPosition(const vec3 pos, const vec3 normal, const vec2 st)
 	}
 	else if (u_DeformGen == DGEN_WAVE_SQUARE)
 	{
-		func = sign(sin(value * 2.0 * M_PI));
+		func = sign(0.5 - fract(value));
 	}
 	else if (u_DeformGen == DGEN_WAVE_TRIANGLE)
 	{
@@ -68,7 +68,7 @@ vec3 DeformPosition(const vec3 pos, const vec3 normal, const vec2 st)
 	{
 		func = (1.0 - fract(value));
 	}
-	else if (u_DeformGen == DGEN_BULGE)
+	else // if (u_DeformGen == DGEN_BULGE)
 	{
 		func = sin(value);
 	}
@@ -78,12 +78,13 @@ vec3 DeformPosition(const vec3 pos, const vec3 normal, const vec2 st)
 
 void main()
 {
-	vec4 position = mix(attr_Position, attr_Position2, u_VertexLerp);
-	vec3 normal = normalize(mix(attr_Normal, attr_Normal2, u_VertexLerp));
+	vec3 position  = mix(attr_Position, attr_Position2, u_VertexLerp);
+	vec3 normal    = mix(attr_Normal,   attr_Normal2,   u_VertexLerp);
+	normal = normalize(normal - vec3(0.5));
 
-	position.xyz = DeformPosition(position.xyz, normal, attr_TexCoord0.st);
+	position = DeformPosition(position, normal, attr_TexCoord0.st);
 
-	gl_Position = u_ModelViewProjectionMatrix * position;
+	gl_Position = u_ModelViewProjectionMatrix * vec4(position, 1.0);
 	
-	var_Position  = (u_ModelMatrix * position).xyz;
+	var_Position  = (u_ModelMatrix * vec4(position, 1.0)).xyz;
 }
diff --git a/src/renderergl2/glsl/texturecolor_fp.glsl b/src/renderergl2/glsl/texturecolor_fp.glsl
index 5646b511..e077e7da 100644
--- a/src/renderergl2/glsl/texturecolor_fp.glsl
+++ b/src/renderergl2/glsl/texturecolor_fp.glsl
@@ -3,7 +3,7 @@
 uniform sampler2D u_DiffuseMap;
 uniform vec4      u_Color;
 
-varying vec2         var_Tex1;
+varying vec2      var_Tex1;
 
 
 void main()
diff --git a/src/renderergl2/glsl/texturecolor_vp.glsl b/src/renderergl2/glsl/texturecolor_vp.glsl
index ae26a18e..7a5750a5 100644
--- a/src/renderergl2/glsl/texturecolor_vp.glsl
+++ b/src/renderergl2/glsl/texturecolor_vp.glsl
@@ -1,6 +1,6 @@
 #version 120
 
-attribute vec4 attr_Position;
+attribute vec3 attr_Position;
 attribute vec4 attr_TexCoord0;
 
 uniform mat4   u_ModelViewProjectionMatrix;
@@ -10,6 +10,6 @@ varying vec2   var_Tex1;
 
 void main()
 {
-	gl_Position = u_ModelViewProjectionMatrix * attr_Position;
+	gl_Position = u_ModelViewProjectionMatrix * vec4(attr_Position, 1.0);
 	var_Tex1 = attr_TexCoord0.st;
 }
diff --git a/src/renderergl2/glsl/tonemap_vp.glsl b/src/renderergl2/glsl/tonemap_vp.glsl
index 5ca41600..bdaa74af 100644
--- a/src/renderergl2/glsl/tonemap_vp.glsl
+++ b/src/renderergl2/glsl/tonemap_vp.glsl
@@ -1,4 +1,4 @@
-attribute vec4 attr_Position;
+attribute vec3 attr_Position;
 attribute vec4 attr_TexCoord0;
 
 uniform mat4   u_ModelViewProjectionMatrix;
@@ -8,6 +8,6 @@ varying vec2   var_TexCoords;
 
 void main()
 {
-	gl_Position = u_ModelViewProjectionMatrix * attr_Position;
+	gl_Position = u_ModelViewProjectionMatrix * vec4(attr_Position, 1.0);
 	var_TexCoords = attr_TexCoord0.st;
 }