diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl')
-rwxr-xr-x | indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl | 70 |
1 files changed, 48 insertions, 22 deletions
diff --git a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl index bdb713d682..7689b72d20 100755 --- a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl +++ b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl @@ -24,6 +24,7 @@ */ #extension GL_ARB_texture_rectangle : enable +#extension GL_ARB_shader_texture_lod : enable #ifdef DEFINE_GL_FRAGCOLOR out vec4 frag_color; @@ -68,22 +69,6 @@ uniform vec2 screen_res; uniform mat4 inv_proj; -#ifdef SINGLE_FP_ONLY -vec2 encode_normal(vec3 n) -{ - vec2 sn; - sn.xy = (n.xy * vec2(0.5f,0.5f)) + vec2(0.5f,0.5f); - return sn; -} - -vec3 decode_normal (vec2 enc) -{ - vec3 n; - n.xy = (enc.xy * vec2(2.0f,2.0f)) - vec2(1.0f,1.0f); - n.z = sqrt(1.0f - dot(n.xy,n.xy)); - return n; -} -#else vec2 encode_normal(vec3 n) { float f = sqrt(8 * n.z + 8); @@ -100,11 +85,47 @@ vec3 decode_normal (vec2 enc) n.z = 1-f/2; return n; } + +vec3 srgb_to_linear(vec3 cs) +{ + vec3 low_range = cs / vec3(12.92); + vec3 high_range = pow((cs+vec3(0.055))/vec3(1.055), vec3(2.4)); + bvec3 lte = lessThanEqual(cs,vec3(0.04045)); + +#ifdef OLD_SELECT + vec3 result; + result.r = lte.r ? low_range.r : high_range.r; + result.g = lte.g ? low_range.g : high_range.g; + result.b = lte.b ? low_range.b : high_range.b; + return result; +#else + return mix(high_range, low_range, lte); #endif +} + +vec3 linear_to_srgb(vec3 cl) +{ + cl = clamp(cl, vec3(0), vec3(1)); + vec3 low_range = cl * 12.92; + vec3 high_range = 1.055 * pow(cl, vec3(0.41666)) - 0.055; + bvec3 lt = lessThan(cl,vec3(0.0031308)); + +#ifdef OLD_SELECT + vec3 result; + result.r = lt.r ? low_range.r : high_range.r; + result.g = lt.g ? low_range.g : high_range.g; + result.b = lt.b ? low_range.b : high_range.b; + return result; +#else + return mix(high_range, low_range, lt); +#endif + +} + vec4 correctWithGamma(vec4 col) { - return vec4(pow(col.rgb, vec3(2.2)), col.a); + return vec4(srgb_to_linear(col.rgb), col.a); } vec4 texture2DLodSpecular(sampler2D projectionMap, vec2 tc, float lod) @@ -178,9 +199,9 @@ void main() vec3 pos = getPosition(frag.xy).xyz; vec3 lv = trans_center.xyz-pos.xyz; - float dist2 = dot(lv,lv); - dist2 /= size; - if (dist2 > 1.0) + float dist = length(lv); + dist /= size; + if (dist > 1.0) { discard; } @@ -212,8 +233,10 @@ void main() proj_tc.xyz /= proj_tc.w; float fa = falloff+1.0; - float dist_atten = min(1.0-(dist2-1.0*(1.0-fa))/fa, 1.0); - dist_atten = pow(dist_atten, 2.2) * 2.2; + float dist_atten = min(1.0-(dist-1.0*(1.0-fa))/fa, 1.0); + dist_atten *= dist_atten; + dist_atten *= 2.0; + if (dist_atten <= 0.0) { discard; @@ -331,6 +354,9 @@ void main() } } + //not sure why, but this line prevents MATBUG-194 + col = max(col, vec3(0.0)); + frag_color.rgb = col; frag_color.a = 0.0; } |