diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl')
-rw-r--r-- | indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl | 239 |
1 files changed, 127 insertions, 112 deletions
diff --git a/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl index 7ed9e7b4fc..61757882bb 100644 --- a/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl +++ b/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl @@ -1,31 +1,35 @@ -/** - * @file class3/deferred/softenLightF.glsl +/** + * @file class2/deferred/softenLightF.glsl * * $LicenseInfo:firstyear=2007&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2007, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ - + #extension GL_ARB_texture_rectangle : enable +#extension GL_ARB_shader_texture_lod : enable -/*[EXTRA_CODE_HERE]*/ +#define FLT_MAX 3.402823466e+38 + +#define REFMAP_COUNT 256 +#define REF_SAMPLE_COUNT 64 //maximum number of samples to consider #ifdef DEFINE_GL_FRAGCOLOR out vec4 frag_color; @@ -36,142 +40,153 @@ out vec4 frag_color; uniform sampler2DRect diffuseRect; uniform sampler2DRect specularRect; uniform sampler2DRect normalMap; + +#if defined(HAS_SUN_SHADOW) || defined(HAS_SSAO) uniform sampler2DRect lightMap; +#endif + uniform sampler2DRect depthMap; uniform sampler2D lightFunc; -uniform samplerCube environmentMap; uniform float blur_size; uniform float blur_fidelity; // Inputs -uniform vec4 morphFactor; -uniform vec3 camPosLocal; -uniform float cloud_shadow; -uniform float max_y; -uniform vec4 glow; uniform mat3 env_mat; -uniform vec4 shadow_clip; uniform vec3 sun_dir; +uniform vec3 moon_dir; +uniform int sun_up_factor; VARYING vec2 vary_fragcoord; uniform mat4 inv_proj; -uniform mat4 inv_modelview; - uniform vec2 screen_res; -uniform sampler2D transmittance_texture; -uniform sampler3D scattering_texture; -uniform sampler3D single_mie_scattering_texture; -uniform sampler2D irradiance_texture; +vec3 getNorm(vec2 pos_screen); +vec4 getPositionWithDepth(vec2 pos_screen, float depth); -uniform sampler2D sh_input_r; -uniform sampler2D sh_input_g; -uniform sampler2D sh_input_b; +void calcAtmosphericVars(vec3 inPositionEye, vec3 light_dir, float ambFactor, out vec3 sunlit, out vec3 amblit, out vec3 additive, out vec3 atten, bool use_ao); +float getAmbientClamp(); +vec3 atmosFragLighting(vec3 l, vec3 additive, vec3 atten); +vec3 scaleSoftClipFrag(vec3 l); +vec3 fullbrightAtmosTransportFrag(vec3 light, vec3 additive, vec3 atten); +vec3 fullbrightScaleSoftClip(vec3 light); -vec3 GetSunAndSkyIrradiance(vec3 camPos, vec3 norm, vec3 dir, out vec3 sky_irradiance); -vec3 GetSkyLuminance(vec3 camPos, vec3 view_dir, float shadow_length, vec3 dir, out vec3 transmittance); -vec3 GetSkyLuminanceToPoint(vec3 camPos, vec3 pos, float shadow_length, vec3 dir, out vec3 transmittance); +// reflection probe interface +void sampleReflectionProbes(inout vec3 ambenv, inout vec3 glossenv, inout vec3 legacyEnv, + vec3 pos, vec3 norm, float glossiness, float envIntensity); +void applyGlossEnv(inout vec3 color, vec3 glossenv, vec4 spec, vec3 pos, vec3 norm); +void applyLegacyEnv(inout vec3 color, vec3 legacyenv, vec4 spec, vec3 pos, vec3 norm, float envIntensity); -vec3 ColorFromRadiance(vec3 radiance); -vec4 getPositionWithDepth(vec2 pos_screen, float depth); -vec4 getPosition(vec2 pos_screen); -vec3 getNorm(vec2 pos_screen); +vec3 linear_to_srgb(vec3 c); +vec3 srgb_to_linear(vec3 c); #ifdef WATER_FOG vec4 applyWaterFogView(vec3 pos, vec4 color); #endif -void main() +void main() { - vec2 tc = vary_fragcoord.xy; - float depth = texture2DRect(depthMap, tc.xy).r; - vec3 pos = getPositionWithDepth(tc, depth).xyz; - vec4 norm = texture2DRect(normalMap, tc); + vec2 tc = vary_fragcoord.xy; + float depth = texture2DRect(depthMap, tc.xy).r; + vec4 pos = getPositionWithDepth(tc, depth); + vec4 norm = texture2DRect(normalMap, tc); float envIntensity = norm.z; - norm.xyz = getNorm(tc); + norm.xyz = getNorm(tc); + + vec3 light_dir = (sun_up_factor == 1) ? sun_dir : moon_dir; + float da = clamp(dot(norm.xyz, light_dir.xyz), 0.0, 1.0); + float light_gamma = 1.0 / 1.3; + da = pow(da, light_gamma); - float da = max(dot(norm.xyz, sun_dir.xyz), 0.0); + vec4 diffuse = texture2DRect(diffuseRect, tc); + diffuse.rgb = linear_to_srgb(diffuse.rgb); // SL-14025 + vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy); - vec4 diffuse = texture2DRect(diffuseRect, tc); // sRGB - diffuse.rgb = srgb_to_linear(diffuse.rgb); - vec3 col; +#if defined(HAS_SUN_SHADOW) || defined(HAS_SSAO) + vec2 scol_ambocc = texture2DRect(lightMap, vary_fragcoord.xy).rg; + scol_ambocc = pow(scol_ambocc, vec2(light_gamma)); + float scol = max(scol_ambocc.r, diffuse.a); + float ambocc = scol_ambocc.g; +#else + float scol = 1.0; + float ambocc = 1.0; +#endif + + vec3 color = vec3(0); float bloom = 0.0; + + vec3 sunlit; + vec3 amblit; + vec3 additive; + vec3 atten; + + calcAtmosphericVars(pos.xyz, light_dir, ambocc, sunlit, amblit, additive, atten, true); + + //vec3 amb_vec = env_mat * norm.xyz; + + vec3 ambenv; + vec3 glossenv; + vec3 legacyenv; + sampleReflectionProbes(ambenv, glossenv, legacyenv, pos.xyz, norm.xyz, spec.a, envIntensity); + + amblit = max(ambenv, amblit); + color.rgb = amblit*ambocc; + + //float ambient = min(abs(dot(norm.xyz, sun_dir.xyz)), 1.0); + //ambient *= 0.5; + //ambient *= ambient; + //ambient = (1.0 - ambient); + //color.rgb *= ambient; + + vec3 sun_contrib = min(da, scol) * sunlit; + color.rgb += sun_contrib; + color.rgb = min(color.rgb, vec3(1,1,1)); + color.rgb *= diffuse.rgb; + + vec3 refnormpersp = reflect(pos.xyz, norm.xyz); + + if (spec.a > 0.0) // specular reflection { - vec3 camPos = (camPosLocal / 1000.0f) + vec3(0, 0, 6360.0f); - - vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy); - - vec2 scol_ambocc = texture2DRect(lightMap, vary_fragcoord.xy).rg; - - float scol = max(scol_ambocc.r, diffuse.a); - - float ambocc = scol_ambocc.g; - - vec4 l1tap = vec4(1.0/sqrt(4*3.14159265), sqrt(3)/sqrt(4*3.14159265), sqrt(3)/sqrt(4*3.14159265), sqrt(3)/sqrt(4*3.14159265)); - vec4 l1r = texture2D(sh_input_r, vec2(0,0)); - vec4 l1g = texture2D(sh_input_g, vec2(0,0)); - vec4 l1b = texture2D(sh_input_b, vec2(0,0)); - - vec3 indirect = vec3(dot(l1r, l1tap * vec4(1, norm.xyz)), - dot(l1g, l1tap * vec4(1, norm.xyz)), - dot(l1b, l1tap * vec4(1, norm.xyz))); - - indirect = clamp(indirect, vec3(0), vec3(1.0)); - - vec3 transmittance; - vec3 sky_irradiance; - vec3 sun_irradiance = GetSunAndSkyIrradiance(camPos, norm.xyz, sun_dir, sky_irradiance); - vec3 inscatter = GetSkyLuminanceToPoint(camPos, (pos / 1000.f) + vec3(0, 0, 6360.0f), scol, sun_dir, transmittance); - - vec3 radiance = scol * (sun_irradiance + sky_irradiance) + inscatter; - vec3 atmo_color = ColorFromRadiance(radiance); - - col = atmo_color + indirect; - col *= transmittance; - col *= diffuse.rgb; - - vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz)); - - if (spec.a > 0.0) // specular reflection - { - // the old infinite-sky shiny reflection - // - float sa = dot(refnormpersp, sun_dir.xyz); - vec3 dumbshiny = scol * texture2D(lightFunc, vec2(sa, spec.a)).r * atmo_color; - - // add the two types of shiny together - vec3 spec_contrib = dumbshiny * spec.rgb * 0.25; - bloom = dot(spec_contrib, spec_contrib); - col += spec_contrib; - } - - col = mix(col, diffuse.rgb, diffuse.a); - - if (envIntensity > 0.0) - { //add environmentmap - vec3 env_vec = env_mat * refnormpersp; - vec3 sun_direction = (inv_modelview * vec4(sun_dir, 1.0)).xyz; - vec3 radiance_sun = GetSkyLuminance(camPos, env_vec, 0.0f, sun_direction, transmittance); - vec3 refcol = ColorFromRadiance(radiance_sun); - col = mix(col.rgb, refcol, envIntensity); - } - - /*if (norm.w < 0.5) - { - col = scaleSoftClipFrag(col); - }*/ - - #ifdef WATER_FOG - vec4 fogged = applyWaterFogView(pos,vec4(col, bloom)); - col = fogged.rgb; - bloom = fogged.a; - #endif + float sa = dot(normalize(refnormpersp), light_dir.xyz); + vec3 dumbshiny = sunlit * scol * (texture2D(lightFunc, vec2(sa, spec.a)).r); + + // add the two types of shiny together + vec3 spec_contrib = dumbshiny * spec.rgb; + bloom = dot(spec_contrib, spec_contrib) / 6; + color.rgb += spec_contrib; + + // add reflection map - EXPERIMENTAL WORK IN PROGRESS + applyGlossEnv(color, glossenv, spec, pos.xyz, norm.xyz); } - //output linear since gamma correction happens down stream - frag_color.rgb = col; + color.rgb = mix(color.rgb, diffuse.rgb, diffuse.a); + + if (envIntensity > 0.0) + { // add environmentmap + //fudge darker + legacyenv *= 0.5*diffuse.a+0.5;; + applyLegacyEnv(color, legacyenv, spec, pos.xyz, norm.xyz, envIntensity); + } + + if (norm.w < 0.5) + { + color = mix(atmosFragLighting(color, additive, atten), fullbrightAtmosTransportFrag(color, additive, atten), diffuse.a); + color = mix(scaleSoftClipFrag(color), fullbrightScaleSoftClip(color), diffuse.a); + } + +#ifdef WATER_FOG + vec4 fogged = applyWaterFogView(pos.xyz, vec4(color, bloom)); + color = fogged.rgb; + bloom = fogged.a; +#endif + + // convert to linear as fullscreen lights need to sum in linear colorspace + // and will be gamma (re)corrected downstream... + //color = vec3(ambocc); + //color = ambenv; + //color.b = diffuse.a; + frag_color.rgb = srgb_to_linear(color.rgb); frag_color.a = bloom; } |