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-rw-r--r--src/renderergl2/glsl/fogpass_vp.glsl12
-rw-r--r--src/renderergl2/glsl/generic_vp.glsl33
-rw-r--r--src/renderergl2/glsl/lightall_fp.glsl92
-rw-r--r--src/renderergl2/glsl/lightall_vp.glsl26
4 files changed, 76 insertions, 87 deletions
diff --git a/src/renderergl2/glsl/fogpass_vp.glsl b/src/renderergl2/glsl/fogpass_vp.glsl
index 40d14d9f..ce0e015b 100644
--- a/src/renderergl2/glsl/fogpass_vp.glsl
+++ b/src/renderergl2/glsl/fogpass_vp.glsl
@@ -85,13 +85,13 @@ float CalcFog(vec4 position)
float s = dot(position, u_FogDistance) * 8.0;
float t = dot(position, u_FogDepth);
- bool eyeOutside = u_FogEyeT < 0.0;
- float t2 = float(t >= float(eyeOutside));
+ float eyeOutside = step(0.0, -u_FogEyeT);
+ float fogged = step(eyeOutside, t);
+
+ t = max(t, 1e-6);
+ t *= fogged / (t - u_FogEyeT * eyeOutside);
- if (eyeOutside)
- t2 *= t / (t - u_FogEyeT);
-
- return s * t2;
+ return s * t;
}
void main()
diff --git a/src/renderergl2/glsl/generic_vp.glsl b/src/renderergl2/glsl/generic_vp.glsl
index 9ad4489b..429d62f5 100644
--- a/src/renderergl2/glsl/generic_vp.glsl
+++ b/src/renderergl2/glsl/generic_vp.glsl
@@ -93,7 +93,7 @@ vec3 DeformPosition(const vec3 pos, const vec3 normal, const vec2 st)
}
else if (u_DeformGen == DGEN_WAVE_TRIANGLE)
{
- func = abs(fract(value + 0.75) - 0.5) * 4.0 - 1.0;
+ func = 1.0 - abs(4.0 * fract(value + 0.25) - 2.0);
}
else if (u_DeformGen == DGEN_WAVE_SAWTOOTH)
{
@@ -163,25 +163,20 @@ vec4 CalcColor(vec3 position, vec3 normal)
color.rgb = clamp(u_DirectedLight * incoming + u_AmbientLight, 0.0, 1.0);
}
- vec3 toView = u_ViewOrigin - position;
- vec3 viewer = normalize(u_ViewOrigin - position);
+ vec3 viewer = u_ViewOrigin - position;
if (u_AlphaGen == AGEN_LIGHTING_SPECULAR)
{
- vec3 lightDir = normalize(vec3(-960.0, -1980.0, 96.0) - position.xyz);
- vec3 halfangle = normalize(lightDir + viewer);
+ vec3 lightDir = normalize(vec3(-960.0, 1980.0, 96.0) - position.xyz);
+ vec3 reflected = -reflect(lightDir, normal);
- color.a = pow(max(dot(normal, halfangle), 0.0), 8.0);
+ color.a = clamp(dot(reflected, normalize(viewer)), 0.0, 1.0);
+ color.a *= color.a;
+ color.a *= color.a;
}
else if (u_AlphaGen == AGEN_PORTAL)
{
- float alpha = length(toView) / u_PortalRange;
-
- color.a = clamp(alpha, 0.0, 1.0);
- }
- else if (u_AlphaGen == AGEN_FRESNEL)
- {
- color.a = 0.10 + 0.90 * pow(1.0 - dot(normal, viewer), 5);
+ color.a = clamp(length(viewer) / u_PortalRange, 0.0, 1.0);
}
return color;
@@ -194,13 +189,13 @@ float CalcFog(vec4 position)
float s = dot(position, u_FogDistance) * 8.0;
float t = dot(position, u_FogDepth);
- bool eyeOutside = u_FogEyeT < 0.0;
- float t2 = float(t >= float(eyeOutside));
-
- if (eyeOutside)
- t2 *= t / (t - u_FogEyeT);
+ float eyeOutside = step(0.0, -u_FogEyeT);
+ float fogged = step(eyeOutside, t);
+
+ t = max(t, 1e-6);
+ t *= fogged / (t - u_FogEyeT * eyeOutside);
- return s * t2;
+ return s * t;
}
#endif
diff --git a/src/renderergl2/glsl/lightall_fp.glsl b/src/renderergl2/glsl/lightall_fp.glsl
index 5bc7b11a..f223bb0c 100644
--- a/src/renderergl2/glsl/lightall_fp.glsl
+++ b/src/renderergl2/glsl/lightall_fp.glsl
@@ -176,17 +176,21 @@ float CalcBlinn(float NH, float shininess)
#endif
}
-float CalcGGX(float NH, float shininess)
+float CalcGGX(float NH, float gloss)
{
- // from http://blog.selfshadow.com/publications/s2013-shading-course/karis/s2013_pbs_epic_notes.pdf
- float m_sq = 2.0 / shininess;
- float d = ((NH * NH) * (m_sq - 1.0) + 1.0);
- return m_sq / (d * d);
+ // from http://blog.selfshadow.com/publications/s2013-shading-course/karis/s2013_pbs_epic_notes_v2.pdf
+ float a_sq = exp2(gloss * -13.0 + 1.0);
+ float d = ((NH * NH) * (a_sq - 1.0) + 1.0);
+ return a_sq / (d * d);
}
float CalcFresnel(float EH)
{
#if 1
+ // From http://blog.selfshadow.com/publications/s2013-shading-course/lazarov/s2013_pbs_black_ops_2_notes.pdf
+ // not accurate, but fast
+ return exp2(-10.0 * EH);
+#elif 0
// From http://seblagarde.wordpress.com/2012/06/03/spherical-gaussien-approximation-for-blinn-phong-phong-and-fresnel/
return exp2((-5.55473 * EH - 6.98316) * EH);
#elif 0
@@ -196,42 +200,48 @@ float CalcFresnel(float EH)
return blend;
#else
- return pow(1.0 - NH, 5.0);
+ return pow(1.0 - EH, 5.0);
#endif
}
-float CalcVisibility(float NH, float NL, float NE, float EH, float shininess)
+float CalcVisibility(float NH, float NL, float NE, float EH, float gloss)
{
-#if 0
- float geo = 2.0 * NH * min(NE, NL);
- geo /= max(EH, geo);
-
- return geo;
-#else
- // Modified from http://blog.selfshadow.com/publications/s2013-shading-course/karis/s2013_pbs_epic_notes.pdf
- // NL, NE in numerator factored out from cook-torrance
+#if 1
+ // From 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
+ float roughness = exp2(gloss * -6.5);
+
#if defined(USE_GGX)
- float roughness = sqrt(2.0 / (shininess + 2.0));
- float k = (roughness + 1.0);
+ // 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 = 2.0 / sqrt(3.1415926535 * (shininess + 2.0));
+ 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 k2 = 1.0 - k;
float invGeo1 = NL * k2 + k;
float invGeo2 = NE * k2 + k;
return 1.0 / (invGeo1 * invGeo2);
- #endif
+#else
+ float geo = 2.0 * NH * min(NE, NL);
+ geo /= max(EH, geo);
+
+ return geo;
+#endif
}
-vec3 CalcSpecular(vec3 specular, float NH, float NL, float NE, float EH, float shininess)
+vec3 CalcSpecular(vec3 specular, float NH, float NL, float NE, float EH, float gloss, float shininess)
{
float blinn = CalcBlinn(NH, shininess);
vec3 fSpecular = mix(specular, vec3(1.0), CalcFresnel(EH));
- float vis = CalcVisibility(NH, NL, NE, EH, shininess);
+ float vis = CalcVisibility(NH, NL, NE, EH, gloss);
#if defined(USE_BLINN)
// Normalized Blinn-Phong
@@ -330,13 +340,12 @@ void main()
#endif
vec4 diffuse = texture2D(u_DiffuseMap, texCoords);
-
-#if defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
-
- #if defined(USE_LINEAR_LIGHT)
+#if defined(USE_GAMMA2_TEXTURES)
diffuse.rgb *= diffuse.rgb;
- #endif
+#endif
+
+#if defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
#if defined(USE_NORMALMAP)
#if defined(SWIZZLE_NORMALMAP)
N.xy = 2.0 * texture2D(u_NormalMap, texCoords).ag - vec2(1.0);
@@ -361,9 +370,9 @@ void main()
// surfaces not facing the light are always shadowed
#if defined(USE_TANGENT_SPACE_LIGHT)
- shadowValue *= float(var_PrimaryLightDir.z > 0.0);
+ shadowValue *= step(0.0, var_PrimaryLightDir.z);
#else
- shadowValue *= float(dot(var_Normal.xyz, var_PrimaryLightDir.xyz) > 0.0);
+ shadowValue *= step(0.0, dot(var_Normal.xyz, var_PrimaryLightDir.xyz));
#endif
#if defined(SHADOWMAP_MODULATE)
@@ -403,9 +412,9 @@ void main()
#if defined(USE_SPECULARMAP)
vec4 specular = texture2D(u_SpecularMap, texCoords);
- #if defined(USE_LINEAR_LIGHT)
+ #if defined(USE_GAMMA2_TEXTURES)
specular.rgb *= specular.rgb;
- #endif
+ #endif
#else
vec4 specular = vec4(1.0);
#endif
@@ -414,7 +423,6 @@ void main()
float gloss = specular.a;
float shininess = exp2(gloss * 13.0);
- float localOcclusion = clamp((diffuse.r + diffuse.g + diffuse.b) * 16.0f, 0.0, 1.0);
#if defined(SPECULAR_IS_METALLIC)
// diffuse is actually base color, and red of specular is metallicness
@@ -431,10 +439,12 @@ void main()
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)
- adjShininess = exp2(gloss * r_deluxeSpecular * 13.0);
+ adjGloss *= r_deluxeSpecular;
+ adjShininess = exp2(adjGloss * 13.0);
#endif
H = normalize(L + E);
@@ -443,9 +453,9 @@ void main()
NH = clamp(dot(N, H), 0.0, 1.0);
#if !defined(USE_LIGHT_VECTOR)
- reflectance += CalcSpecular(specular.rgb, NH, NL, NE, EH, adjShininess) * r_deluxeSpecular * localOcclusion;
+ reflectance += CalcSpecular(specular.rgb, NH, NL, NE, EH, adjGloss, adjShininess) * r_deluxeSpecular;
#else
- reflectance += CalcSpecular(specular.rgb, NH, NL, NE, EH, adjShininess) * localOcclusion;
+ reflectance += CalcSpecular(specular.rgb, NH, NL, NE, EH, adjGloss, adjShininess);
#endif
#endif
@@ -462,10 +472,6 @@ void main()
vec3 cubeLightColor = textureCubeLod(u_CubeMap, R, 7.0 - gloss * 7.0).rgb;
- #if defined(USE_LINEAR_LIGHT)
- cubeLightColor *= cubeLightColor;
- #endif
-
#if defined(USE_LIGHTMAP)
cubeLightColor *= lightSample.rgb;
#elif defined (USE_LIGHT_VERTEX)
@@ -475,11 +481,11 @@ void main()
#endif
//gl_FragColor.rgb += diffuse.rgb * textureCubeLod(u_CubeMap, N, 7.0).rgb;
- gl_FragColor.rgb += cubeLightColor * reflectance * localOcclusion;
+ gl_FragColor.rgb += cubeLightColor * reflectance;
#endif
#if defined(USE_PRIMARY_LIGHT)
- L = normalize(var_PrimaryLightDir.xyz);
+ L = var_PrimaryLightDir.xyz; //normalize(var_PrimaryLightDir.xyz);
NL = clamp(dot(N, L), 0.0, 1.0);
H = normalize(L + E);
@@ -487,7 +493,7 @@ void main()
NH = clamp(dot(N, H), 0.0, 1.0);
reflectance = CalcDiffuse(diffuse.rgb, N, L, E, NE, NL, shininess);
- reflectance += CalcSpecular(specular.rgb, NH, NL, NE, EH, shininess);
+ reflectance += CalcSpecular(specular.rgb, NH, NL, NE, EH, gloss, shininess);
lightColor = u_PrimaryLightColor; // * CalcLightAttenuation(L, u_PrimaryLightDir.w);
@@ -497,10 +503,6 @@ void main()
gl_FragColor.rgb += lightColor * reflectance * NL;
#endif
-
- #if defined(USE_LINEAR_LIGHT)
- gl_FragColor.rgb = sqrt(gl_FragColor.rgb);
- #endif
gl_FragColor.a = diffuse.a;
#else
diff --git a/src/renderergl2/glsl/lightall_vp.glsl b/src/renderergl2/glsl/lightall_vp.glsl
index 8230b9db..d9655ebe 100644
--- a/src/renderergl2/glsl/lightall_vp.glsl
+++ b/src/renderergl2/glsl/lightall_vp.glsl
@@ -113,7 +113,7 @@ vec2 ModTexCoords(vec2 st, vec3 position, vec4 texMatrix, vec4 offTurb)
float phase = offTurb.w;
vec2 st2 = vec2(dot(st, texMatrix.xz), dot(st, texMatrix.yw)) + offTurb.xy;
- vec3 offsetPos = position * 0.0009765625;
+ vec3 offsetPos = position / 1024.0;
offsetPos.x += offsetPos.z;
vec2 texOffset = sin((offsetPos.xy + vec2(phase)) * 2.0 * M_PI);
@@ -183,7 +183,7 @@ void main()
#if defined(USE_LIGHT_VECTOR)
vec3 L = u_LightOrigin.xyz - (position * u_LightOrigin.w);
-#elif defined(USE_LIGHT) && !defined(USE_LIGHT_VECTOR)
+#elif defined(USE_LIGHT) && !defined(USE_DELUXEMAP)
vec3 L = attr_LightDirection;
#if defined(USE_MODELMATRIX)
L = (u_ModelMatrix * vec4(L, 0.0)).xyz;
@@ -194,12 +194,10 @@ void main()
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 = u_VertColor.rgb * attr_Color.rgb;
+ var_LightColor = var_Color.rgb;
var_Color.rgb = vec3(1.0);
- var_Color.a = u_VertColor.a * attr_Color.a + u_BaseColor.a;
-#else
- var_Color = u_VertColor * attr_Color + u_BaseColor;
#endif
#if defined(USE_LIGHT_VECTOR) && defined(USE_FAST_LIGHT)
@@ -209,14 +207,8 @@ void main()
var_Color.rgb *= u_DirectedLight * attenuation * NL + u_AmbientLight;
#endif
-#if (defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)) || defined(USE_PARALLAXMAP)
- var_Normal.xyz = normal;
- var_Tangent.xyz = tangent;
- var_Bitangent.xyz = bitangent;
-#endif
-
#if defined(USE_PRIMARY_LIGHT) || defined(USE_SHADOWMAP)
- var_PrimaryLightDir.xyz = (u_PrimaryLightOrigin.xyz - (position * u_PrimaryLightOrigin.w));
+ var_PrimaryLightDir.xyz = u_PrimaryLightOrigin.xyz - (position * u_PrimaryLightOrigin.w);
var_PrimaryLightDir.w = u_PrimaryLightRadius * u_PrimaryLightRadius;
#endif
@@ -229,7 +221,7 @@ void main()
#endif
#if (defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)) || defined(USE_PARALLAXMAP)
- vec3 viewDir = (u_ViewOrigin - position);
+ vec3 viewDir = u_ViewOrigin - position;
#endif
#if defined(USE_TANGENT_SPACE_LIGHT)
@@ -250,8 +242,8 @@ void main()
#if (defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)) || defined(USE_PARALLAXMAP)
// store view direction in tangent space to save on varyings
- var_Normal.w = viewDir.x;
- var_Tangent.w = viewDir.y;
- var_Bitangent.w = viewDir.z;
+ var_Normal = vec4(normal, viewDir.x);
+ var_Tangent = vec4(tangent, viewDir.y);
+ var_Bitangent = vec4(bitangent, viewDir.z);
#endif
}
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