diff options
Diffstat (limited to 'indra/newview/app_settings/shaders')
9 files changed, 1486 insertions, 42 deletions
diff --git a/indra/newview/app_settings/shaders/class3/deferred/multiSpotLightF.glsl b/indra/newview/app_settings/shaders/class3/deferred/multiSpotLightF.glsl new file mode 100644 index 0000000000..864ba4859d --- /dev/null +++ b/indra/newview/app_settings/shaders/class3/deferred/multiSpotLightF.glsl @@ -0,0 +1,314 @@ +/** + * @file multiSpotLightF.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]*/ + +#ifdef DEFINE_GL_FRAGCOLOR +out vec4 frag_color; +#else +#define frag_color gl_FragColor +#endif + +uniform sampler2DRect diffuseRect; +uniform sampler2DRect specularRect; +uniform sampler2DRect depthMap; +uniform sampler2DRect normalMap; +uniform samplerCube environmentMap; +uniform sampler2DRect lightMap; +uniform sampler2D noiseMap; +uniform sampler2D projectionMap; +uniform sampler2D lightFunc; + +uniform mat4 proj_mat; //screen space to light space +uniform float proj_near; //near clip for projection +uniform vec3 proj_p; //plane projection is emitting from (in screen space) +uniform vec3 proj_n; +uniform float proj_focus; //distance from plane to begin blurring +uniform float proj_lod; //(number of mips in proj map) +uniform float proj_range; //range between near clip and far clip plane of projection +uniform float proj_ambient_lod; +uniform float proj_ambiance; +uniform float near_clip; +uniform float far_clip; + +uniform vec3 proj_origin; //origin of projection to be used for angular attenuation +uniform float sun_wash; +uniform int proj_shadow_idx; +uniform float shadow_fade; + +uniform vec3 center; +uniform float size; +uniform vec3 color; +uniform float falloff; + +VARYING vec4 vary_fragcoord; +uniform vec2 screen_res; + +uniform mat4 inv_proj; + +vec3 srgb_to_linear(vec3 cs); +vec3 linear_to_srgb(vec3 cl); +vec3 decode_normal (vec2 enc); + +vec4 correctWithGamma(vec4 col) +{ + return vec4(srgb_to_linear(col.rgb), col.a); +} + +vec4 texture2DLodSpecular(sampler2D projectionMap, vec2 tc, float lod) +{ + vec4 ret = texture2DLod(projectionMap, tc, lod); + ret.rgb = srgb_to_linear(ret.rgb); + + vec2 dist = vec2(0.5) - abs(tc-vec2(0.5)); + + float det = min(lod/(proj_lod*0.5), 1.0); + + float d = min(dist.x, dist.y); + + d *= min(1, d * (proj_lod - lod)); + + float edge = 0.25*det; + + ret *= clamp(d/edge, 0.0, 1.0); + + return ret; +} + +vec4 texture2DLodDiffuse(sampler2D projectionMap, vec2 tc, float lod) +{ + vec4 ret = texture2DLod(projectionMap, tc, lod); + ret = correctWithGamma(ret); + + vec2 dist = vec2(0.5) - abs(tc-vec2(0.5)); + + float det = min(lod/(proj_lod*0.5), 1.0); + + float d = min(dist.x, dist.y); + + float edge = 0.25*det; + + ret *= clamp(d/edge, 0.0, 1.0); + + return ret; +} + +vec4 texture2DLodAmbient(sampler2D projectionMap, vec2 tc, float lod) +{ + vec4 ret = texture2DLod(projectionMap, tc, lod); + ret = correctWithGamma(ret); + + vec2 dist = tc-vec2(0.5); + + float d = dot(dist,dist); + + ret *= min(clamp((0.25-d)/0.25, 0.0, 1.0), 1.0); + + return ret; +} + + +vec4 getPosition(vec2 pos_screen) +{ + float depth = texture2DRect(depthMap, pos_screen.xy).r; + vec2 sc = pos_screen.xy*2.0; + sc /= screen_res; + sc -= vec2(1.0,1.0); + vec4 ndc = vec4(sc.x, sc.y, 2.0*depth-1.0, 1.0); + vec4 pos = inv_proj * ndc; + pos /= pos.w; + pos.w = 1.0; + return pos; +} + +void main() +{ + vec4 frag = vary_fragcoord; + frag.xyz /= frag.w; + frag.xyz = frag.xyz*0.5+0.5; + frag.xy *= screen_res; + + vec3 pos = getPosition(frag.xy).xyz; + vec3 lv = center.xyz-pos.xyz; + float dist = length(lv); + dist /= size; + if (dist > 1.0) + { + discard; + } + + float shadow = 1.0; + + if (proj_shadow_idx >= 0) + { + vec4 shd = texture2DRect(lightMap, frag.xy); + float sh[2]; + sh[0] = shd.b; + sh[1] = shd.a; + shadow = min(sh[proj_shadow_idx]+shadow_fade, 1.0); + } + + vec3 norm = texture2DRect(normalMap, frag.xy).xyz; + + float envIntensity = norm.z; + + norm = decode_normal(norm.xy); + + norm = normalize(norm); + float l_dist = -dot(lv, proj_n); + + vec4 proj_tc = (proj_mat * vec4(pos.xyz, 1.0)); + if (proj_tc.z < 0.0) + { + discard; + } + + proj_tc.xyz /= proj_tc.w; + + float fa = falloff+1.0; + 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; + } + + lv = proj_origin-pos.xyz; + lv = normalize(lv); + float da = dot(norm, lv); + + vec3 col = vec3(0,0,0); + + vec3 diff_tex = texture2DRect(diffuseRect, frag.xy).rgb; + + vec4 spec = texture2DRect(specularRect, frag.xy); + + vec3 dlit = vec3(0, 0, 0); + + float noise = texture2D(noiseMap, frag.xy/128.0).b; + if (proj_tc.z > 0.0 && + proj_tc.x < 1.0 && + proj_tc.y < 1.0 && + proj_tc.x > 0.0 && + proj_tc.y > 0.0) + { + float amb_da = proj_ambiance; + float lit = 0.0; + + if (da > 0.0) + { + lit = da * dist_atten * noise; + + float diff = clamp((l_dist-proj_focus)/proj_range, 0.0, 1.0); + float lod = diff * proj_lod; + + vec4 plcol = texture2DLodDiffuse(projectionMap, proj_tc.xy, lod); + + dlit = color.rgb * plcol.rgb * plcol.a; + + col = dlit*lit*diff_tex*shadow; + amb_da += (da*0.5)*(1.0-shadow)*proj_ambiance; + } + + //float diff = clamp((proj_range-proj_focus)/proj_range, 0.0, 1.0); + vec4 amb_plcol = texture2DLodAmbient(projectionMap, proj_tc.xy, proj_lod); + + amb_da += (da*da*0.5+0.5)*proj_ambiance; + + amb_da *= dist_atten * noise; + + amb_da = min(amb_da, 1.0-lit); + + col += amb_da*color.rgb*diff_tex.rgb*amb_plcol.rgb*amb_plcol.a; + } + + + if (spec.a > 0.0) + { + vec3 npos = -normalize(pos); + dlit *= min(da*6.0, 1.0) * dist_atten; + + //vec3 ref = dot(pos+lv, norm); + vec3 h = normalize(lv+npos); + float nh = dot(norm, h); + float nv = dot(norm, npos); + float vh = dot(npos, h); + float sa = nh; + float fres = pow(1 - dot(h, npos), 5)*0.4+0.5; + + float gtdenom = 2 * nh; + float gt = max(0, min(gtdenom * nv / vh, gtdenom * da / vh)); + + if (nh > 0.0) + { + float scol = fres*texture2D(lightFunc, vec2(nh, spec.a)).r*gt/(nh*da); + col += dlit*scol*spec.rgb*shadow; + //col += spec.rgb; + } + } + + + + + + if (envIntensity > 0.0) + { + vec3 ref = reflect(normalize(pos), norm); + + //project from point pos in direction ref to plane proj_p, proj_n + vec3 pdelta = proj_p-pos; + float ds = dot(ref, proj_n); + + if (ds < 0.0) + { + vec3 pfinal = pos + ref * dot(pdelta, proj_n)/ds; + + vec4 stc = (proj_mat * vec4(pfinal.xyz, 1.0)); + + if (stc.z > 0.0) + { + stc /= stc.w; + + if (stc.x < 1.0 && + stc.y < 1.0 && + stc.x > 0.0 && + stc.y > 0.0) + { + col += color.rgb * texture2DLodSpecular(projectionMap, stc.xy, (1 - spec.a) * (proj_lod * 0.6)).rgb * shadow * envIntensity; + } + } + } + } + + //not sure why, but this line prevents MATBUG-194 + col = max(col, vec3(0.0)); + + frag_color.rgb = col; + frag_color.a = 0.0; +} diff --git a/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl b/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl index 47fa0efe06..7bfc114383 100644 --- a/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl +++ b/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl @@ -1,5 +1,5 @@ /** - * @file advancedAtmoF.glsl + * @file class3/skyF.glsl * * $LicenseInfo:firstyear=2005&license=viewerlgpl$ * Second Life Viewer Source Code @@ -24,17 +24,19 @@ */ #ifdef DEFINE_GL_FRAGCOLOR -out vec4 frag_color; +out vec4 frag_data[3]; #else -#define frag_color gl_FragColor +#define frag_data gl_FragData #endif -in vec3 view_pos; -in vec3 view_dir; +VARYING vec2 vary_frag; -uniform vec3 cameraPosLocal; +uniform vec3 camPosLocal; uniform vec3 sun_dir; uniform float sun_size; +uniform float far_z; +uniform mat4 inv_proj; +uniform mat4 inv_modelview; uniform sampler2D transmittance_texture; uniform sampler3D scattering_texture; @@ -44,42 +46,38 @@ uniform sampler2D irradiance_texture; vec3 GetSolarLuminance(); 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); -vec3 GetSunAndSkyIlluminance(vec3 pos, vec3 norm, vec3 dir, out vec3 sky_irradiance); void main() { - vec3 view_direction = normalize(view_dir); + vec3 pos = vec3((vary_frag * 2.0) - vec2(1.0, 1.0), 0.0); + vec4 view_pos = (inv_proj * vec4(pos, 1.0f)); + view_pos /= view_pos.w; + vec3 view_ray = (inv_modelview * vec4(view_pos.xyz, 0.0f)).xyz; - vec3 sun_direction = sun_dir; + vec3 view_direction = normalize(view_ray); + vec3 sun_direction = normalize(sun_dir); - vec3 camPos = cameraPosLocal + vec3(0, 0, 6360.0f); + vec3 camPos = (camPosLocal / 1000.0f) + vec3(0, 0, 6360.0f); vec3 transmittance; - vec3 sky_illum; - - vec3 radiance_sun = GetSkyLuminance(camPos, view_direction, 0.0f, sun_direction, transmittance); - vec3 radiance2_sun = GetSunAndSkyIlluminance(camPos, view_direction, sun_direction, sky_illum); - - radiance_sun *= transmittance; - + vec3 radiance_sun = GetSkyLuminance(camPos, view_direction, 0.0f, sun_direction, transmittance); vec3 solar_luminance = transmittance * GetSolarLuminance(); // If the view ray intersects the Sun, add the Sun radiance. - if (dot(view_direction, sun_direction) >= sun_size) + float s = dot(view_direction, sun_direction); + + // cheesy solar disc... + if (s >= (sun_size * 0.999)) { - radiance_sun = radiance_sun + solar_luminance; + radiance_sun += pow(smoothstep(0.0, 1.3, (s - (sun_size * 0.9))), 2.0) * solar_luminance; } + s = smoothstep(0.9, 1.0, s) * 16.0f; - vec3 color = radiance_sun; - - color = vec3(1.0) - exp(-color * 0.0001); - - //float d = dot(view_direction, sun_direction); - //frag_color.rgb = vec3(d, d >= sun_size ? 1.0f : 0.0f, 0.0f); + vec3 color = vec3(1.0) - exp(-radiance_sun * 0.0001); - frag_color.rgb = color; - //frag_color.rgb = vec3(dot(view_direction, sun_direction) > 0.95f ? 1.0 : 0.0, 0,0); - //frag_color.rgb = normalize(view_pos); + color = pow(color, vec3(1.0 / 2.2)); - frag_color.a = 1.0; + frag_data[0] = vec4(color, 1.0 + s); + frag_data[1] = vec4(0.0); + frag_data[2] = vec4(0.0, 1.0, 0.0, 1.0); } diff --git a/indra/newview/app_settings/shaders/class3/deferred/skyV.glsl b/indra/newview/app_settings/shaders/class3/deferred/skyV.glsl index cf3eb658fc..a5cc49ca30 100644 --- a/indra/newview/app_settings/shaders/class3/deferred/skyV.glsl +++ b/indra/newview/app_settings/shaders/class3/deferred/skyV.glsl @@ -30,22 +30,14 @@ uniform mat4 inv_proj; uniform mat4 inv_modelview; ATTRIBUTE vec3 position; +ATTRIBUTE vec2 texcoord0; -// Inputs -uniform vec3 camPosLocal; - -out vec3 view_pos; -out vec3 view_dir; +VARYING vec2 vary_frag; void main() { - // pass through untransformed fullscreen pos (clipspace) - gl_Position = vec4(position.xyz, 1.0); - - view_pos = (inv_proj * vec4(position, 1.0f)).xyz; - - // this will be normalized in the frag shader... - //view_dir = (inv_modelview * view_pos).xyz; - view_dir = view_pos - camPosLocal; + // pass through untransformed fullscreen pos at back of frustum for proper sky depth testing + gl_Position = vec4(position.xy, 1.0f, 1.0); + vary_frag = texcoord0; } diff --git a/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl new file mode 100644 index 0000000000..bda33c3213 --- /dev/null +++ b/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl @@ -0,0 +1,189 @@ +/** + * @file 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 + +/*[EXTRA_CODE_HERE]*/ + +#ifdef DEFINE_GL_FRAGCOLOR +out vec4 frag_color; +#else +#define frag_color gl_FragColor +#endif + +uniform sampler2DRect diffuseRect; +uniform sampler2DRect specularRect; +uniform sampler2DRect normalMap; +uniform sampler2DRect lightMap; +uniform sampler2DRect depthMap; +uniform samplerCube environmentMap; +uniform sampler2D lightFunc; + +uniform float blur_size; +uniform float blur_fidelity; + +// Inputs +uniform vec4 morphFactor; +uniform vec3 camPosLocal; +//uniform vec4 camPosWorld; +uniform vec4 gamma; +uniform vec4 sunlight_color; +uniform vec4 ambient; +uniform vec4 blue_horizon; +uniform vec4 blue_density; +uniform float haze_horizon; +uniform float haze_density; +uniform float cloud_shadow; +uniform float density_multiplier; +uniform float distance_multiplier; +uniform float max_y; +uniform vec4 glow; +uniform float global_gamma; +uniform float scene_light_strength; +uniform mat3 env_mat; +uniform vec4 shadow_clip; +uniform mat3 ssao_effect_mat; + +uniform vec3 sun_dir; +VARYING vec2 vary_fragcoord; + +uniform mat4 inv_proj; +uniform mat4 inv_modelview; + +uniform vec2 screen_res; + +vec3 srgb_to_linear(vec3 cs); +vec3 linear_to_srgb(vec3 cl); +vec3 decode_normal (vec2 enc); + +vec4 getPosition_d(vec2 pos_screen, float depth) +{ + vec2 sc = pos_screen.xy*2.0; + sc /= screen_res; + sc -= vec2(1.0,1.0); + vec4 ndc = vec4(sc.x, sc.y, 2.0*depth-1.0, 1.0); + vec4 pos = inv_proj * ndc; + pos /= pos.w; + pos.w = 1.0; + return pos; +} + +vec4 getPosition(vec2 pos_screen) +{ //get position in screen space (world units) given window coordinate and depth map + float depth = texture2DRect(depthMap, pos_screen.xy).r; + return getPosition_d(pos_screen, depth); +} + + +#ifdef WATER_FOG +vec4 applyWaterFogView(vec3 pos, vec4 color); +#endif + +void main() +{ + vec2 tc = vary_fragcoord.xy; + float depth = texture2DRect(depthMap, tc.xy).r; + vec3 pos = getPosition_d(tc, depth).xyz; + vec4 norm = texture2DRect(normalMap, tc); + float envIntensity = norm.z; + norm.xyz = decode_normal(norm.xy); // unpack norm + + float da = max(dot(norm.xyz, sun_dir.xyz), 0.0); + + float light_gamma = 1.0/1.3; + da = pow(da, light_gamma); + + + vec4 diffuse = texture2DRect(diffuseRect, tc); + + //convert to gamma space + diffuse.rgb = linear_to_srgb(diffuse.rgb); + + vec3 col; + float bloom = 0.0; + { + vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy); + + 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; + + vec3 sunlit; + vec3 amblit; + vec3 additive; + vec3 atten; + + //calcFragAtmospherics(pos.xyz, ambocc, sunlit, amblit, additive, atten); + //col += atmosFragAffectDirectionalLight(max(min(da, scol), 0.0), sunlit); + + 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 = sunlit*(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; + col += spec_contrib; + } + + + col = mix(col, diffuse.rgb, diffuse.a); + + if (envIntensity > 0.0) + { //add environmentmap + vec3 env_vec = env_mat * refnormpersp; + vec3 refcol = textureCube(environmentMap, env_vec).rgb; + col = mix(col.rgb, refcol, envintensity); + } + + if (norm.w < 0.5) + { + //col = mix(atmosFragLighting(col, additive, atten), fullbrightFragAtmosTransport(col, atten, additive), diffuse.a); + //col = mix(scaleFragSoftClip(col), fullbrightScaleSoftClipFrag(col, atten), diffuse.a); + } + + #ifdef WATER_FOG + vec4 fogged = applyWaterFogView(pos,vec4(col, bloom)); + col = fogged.rgb; + bloom = fogged.a; + #endif + + col = srgb_to_linear(col); + } + + frag_color.rgb = col; + frag_color.a = bloom; +} diff --git a/indra/newview/app_settings/shaders/class3/deferred/softenLightV.glsl b/indra/newview/app_settings/shaders/class3/deferred/softenLightV.glsl new file mode 100644 index 0000000000..c840d72784 --- /dev/null +++ b/indra/newview/app_settings/shaders/class3/deferred/softenLightV.glsl @@ -0,0 +1,42 @@ +/** + * @file 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 + * $/LicenseInfo$ + */ + +uniform mat4 modelview_projection_matrix; + +ATTRIBUTE vec3 position; + +uniform vec2 screen_res; + +VARYING vec2 vary_fragcoord; + +void main() +{ + //transform vertex + vec4 pos = modelview_projection_matrix * vec4(position.xyz, 1.0); + gl_Position = pos; + + + vary_fragcoord = (pos.xy*0.5+0.5)*screen_res; +} diff --git a/indra/newview/app_settings/shaders/class3/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class3/deferred/spotLightF.glsl new file mode 100644 index 0000000000..a7da140b31 --- /dev/null +++ b/indra/newview/app_settings/shaders/class3/deferred/spotLightF.glsl @@ -0,0 +1,313 @@ +/** + * @file spotLightF.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]*/ + +#ifdef DEFINE_GL_FRAGCOLOR +out vec4 frag_color; +#else +#define frag_color gl_FragColor +#endif + +uniform sampler2DRect diffuseRect; +uniform sampler2DRect specularRect; +uniform sampler2DRect depthMap; +uniform sampler2DRect normalMap; +uniform samplerCube environmentMap; +uniform sampler2DRect lightMap; +uniform sampler2D noiseMap; +uniform sampler2D projectionMap; +uniform sampler2D lightFunc; + +uniform mat4 proj_mat; //screen space to light space +uniform float proj_near; //near clip for projection +uniform vec3 proj_p; //plane projection is emitting from (in screen space) +uniform vec3 proj_n; +uniform float proj_focus; //distance from plane to begin blurring +uniform float proj_lod; //(number of mips in proj map) +uniform float proj_range; //range between near clip and far clip plane of projection +uniform float proj_ambient_lod; +uniform float proj_ambiance; +uniform float near_clip; +uniform float far_clip; + +uniform vec3 proj_origin; //origin of projection to be used for angular attenuation +uniform float sun_wash; +uniform int proj_shadow_idx; +uniform float shadow_fade; + +uniform float size; +uniform vec3 color; +uniform float falloff; + +VARYING vec3 trans_center; +VARYING vec4 vary_fragcoord; +uniform vec2 screen_res; + +uniform mat4 inv_proj; + +vec3 decode_normal (vec2 enc); +vec3 srgb_to_linear(vec3 cs); +vec3 linear_to_srgb(vec3 cl); + +vec4 correctWithGamma(vec4 col) +{ + return vec4(srgb_to_linear(col.rgb), col.a); +} + +vec4 texture2DLodSpecular(sampler2D projectionMap, vec2 tc, float lod) +{ + vec4 ret = texture2DLod(projectionMap, tc, lod); + ret.rgb = srgb_to_linear(ret.rgb); + + vec2 dist = vec2(0.5) - abs(tc-vec2(0.5)); + + float det = min(lod/(proj_lod*0.5), 1.0); + + float d = min(dist.x, dist.y); + + d *= min(1, d * (proj_lod - lod)); + + float edge = 0.25*det; + + ret *= clamp(d/edge, 0.0, 1.0); + + return ret; +} + +vec4 texture2DLodDiffuse(sampler2D projectionMap, vec2 tc, float lod) +{ + vec4 ret = texture2DLod(projectionMap, tc, lod); + ret = correctWithGamma(ret); + + vec2 dist = vec2(0.5) - abs(tc-vec2(0.5)); + + float det = min(lod/(proj_lod*0.5), 1.0); + + float d = min(dist.x, dist.y); + + float edge = 0.25*det; + + ret *= clamp(d/edge, 0.0, 1.0); + + return ret; +} + +vec4 texture2DLodAmbient(sampler2D projectionMap, vec2 tc, float lod) +{ + vec4 ret = texture2DLod(projectionMap, tc, lod); + ret = correctWithGamma(ret); + + vec2 dist = tc-vec2(0.5); + + float d = dot(dist,dist); + + ret *= min(clamp((0.25-d)/0.25, 0.0, 1.0), 1.0); + + return ret; +} + + +vec4 getPosition(vec2 pos_screen) +{ + float depth = texture2DRect(depthMap, pos_screen.xy).r; + vec2 sc = pos_screen.xy*2.0; + sc /= screen_res; + sc -= vec2(1.0,1.0); + vec4 ndc = vec4(sc.x, sc.y, 2.0*depth-1.0, 1.0); + vec4 pos = inv_proj * ndc; + pos /= pos.w; + pos.w = 1.0; + return pos; +} + +void main() +{ + vec4 frag = vary_fragcoord; + frag.xyz /= frag.w; + frag.xyz = frag.xyz*0.5+0.5; + frag.xy *= screen_res; + + vec3 pos = getPosition(frag.xy).xyz; + vec3 lv = trans_center.xyz-pos.xyz; + float dist = length(lv); + dist /= size; + if (dist > 1.0) + { + discard; + } + + float shadow = 1.0; + + if (proj_shadow_idx >= 0) + { + vec4 shd = texture2DRect(lightMap, frag.xy); + float sh[2]; + sh[0] = shd.b; + sh[1] = shd.a; + shadow = min(sh[proj_shadow_idx]+shadow_fade, 1.0); + } + + vec3 norm = texture2DRect(normalMap, frag.xy).xyz; + float envIntensity = norm.z; + norm = decode_normal(norm.xy); + + norm = normalize(norm); + float l_dist = -dot(lv, proj_n); + + vec4 proj_tc = (proj_mat * vec4(pos.xyz, 1.0)); + if (proj_tc.z < 0.0) + { + discard; + } + + proj_tc.xyz /= proj_tc.w; + + float fa = falloff + 1.0; + 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; + } + + lv = proj_origin-pos.xyz; + lv = normalize(lv); + float da = dot(norm, lv); + + vec3 col = vec3(0,0,0); + + vec3 diff_tex = texture2DRect(diffuseRect, frag.xy).rgb; + + vec4 spec = texture2DRect(specularRect, frag.xy); + + vec3 dlit = vec3(0, 0, 0); + + float noise = texture2D(noiseMap, frag.xy/128.0).b; + if (proj_tc.z > 0.0 && + proj_tc.x < 1.0 && + proj_tc.y < 1.0 && + proj_tc.x > 0.0 && + proj_tc.y > 0.0) + { + float amb_da = proj_ambiance; + float lit = 0.0; + + if (da > 0.0) + { + lit = da * dist_atten * noise; + + float diff = clamp((l_dist-proj_focus)/proj_range, 0.0, 1.0); + float lod = diff * proj_lod; + + vec4 plcol = texture2DLodDiffuse(projectionMap, proj_tc.xy, lod); + + dlit = color.rgb * plcol.rgb * plcol.a; + + col = dlit*lit*diff_tex*shadow; + amb_da += (da*0.5)*(1.0-shadow)*proj_ambiance; + } + + //float diff = clamp((proj_range-proj_focus)/proj_range, 0.0, 1.0); + vec4 amb_plcol = texture2DLodAmbient(projectionMap, proj_tc.xy, proj_lod); + + amb_da += (da*da*0.5+0.5)*proj_ambiance; + + amb_da *= dist_atten * noise; + + amb_da = min(amb_da, 1.0-lit); + + col += amb_da*color.rgb*diff_tex.rgb*amb_plcol.rgb*amb_plcol.a; + } + + + if (spec.a > 0.0) + { + dlit *= min(da*6.0, 1.0) * dist_atten; + vec3 npos = -normalize(pos); + + //vec3 ref = dot(pos+lv, norm); + vec3 h = normalize(lv+npos); + float nh = dot(norm, h); + float nv = dot(norm, npos); + float vh = dot(npos, h); + float sa = nh; + float fres = pow(1 - dot(h, npos), 5)*0.4+0.5; + + float gtdenom = 2 * nh; + float gt = max(0, min(gtdenom * nv / vh, gtdenom * da / vh)); + + if (nh > 0.0) + { + float scol = fres*texture2D(lightFunc, vec2(nh, spec.a)).r*gt/(nh*da); + col += dlit*scol*spec.rgb*shadow; + //col += spec.rgb; + } + } + + + + + + if (envIntensity > 0.0) + { + vec3 ref = reflect(normalize(pos), norm); + + //project from point pos in direction ref to plane proj_p, proj_n + vec3 pdelta = proj_p-pos; + float ds = dot(ref, proj_n); + + if (ds < 0.0) + { + vec3 pfinal = pos + ref * dot(pdelta, proj_n)/ds; + + vec4 stc = (proj_mat * vec4(pfinal.xyz, 1.0)); + + if (stc.z > 0.0) + { + stc /= stc.w; + + if (stc.x < 1.0 && + stc.y < 1.0 && + stc.x > 0.0 && + stc.y > 0.0) + { + col += color.rgb * texture2DLodSpecular(projectionMap, stc.xy, (1 - spec.a) * (proj_lod * 0.6)).rgb * shadow * envIntensity; + } + } + } + } + + //not sure why, but this line prevents MATBUG-194 + col = max(col, vec3(0.0)); + + frag_color.rgb = col; + frag_color.a = 0.0; +} diff --git a/indra/newview/app_settings/shaders/class3/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class3/deferred/sunLightF.glsl new file mode 100644 index 0000000000..aa5e99a2f7 --- /dev/null +++ b/indra/newview/app_settings/shaders/class3/deferred/sunLightF.glsl @@ -0,0 +1,247 @@ +/** + * @file sunLightF.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 + +/*[EXTRA_CODE_HERE]*/ + +#ifdef DEFINE_GL_FRAGCOLOR +out vec4 frag_color; +#else +#define frag_color gl_FragColor +#endif + +//class 2, shadows, no SSAO + +uniform sampler2DRect depthMap; +uniform sampler2DRect normalMap; +uniform sampler2DShadow shadowMap0; +uniform sampler2DShadow shadowMap1; +uniform sampler2DShadow shadowMap2; +uniform sampler2DShadow shadowMap3; +uniform sampler2DShadow shadowMap4; +uniform sampler2DShadow shadowMap5; + + +// Inputs +uniform mat4 shadow_matrix[6]; +uniform vec4 shadow_clip; +uniform float ssao_radius; +uniform float ssao_max_radius; +uniform float ssao_factor; +uniform float ssao_factor_inv; + +VARYING vec2 vary_fragcoord; + +uniform mat4 inv_proj; +uniform vec2 screen_res; +uniform vec2 proj_shadow_res; +uniform vec3 sun_dir; + +uniform vec2 shadow_res; +uniform float shadow_bias; +uniform float shadow_offset; + +uniform float spot_shadow_bias; +uniform float spot_shadow_offset; + +vec3 decode_normal (vec2 enc); + +vec4 getPosition(vec2 pos_screen) +{ + float depth = texture2DRect(depthMap, pos_screen.xy).r; + vec2 sc = pos_screen.xy*2.0; + sc /= screen_res; + sc -= vec2(1.0,1.0); + vec4 ndc = vec4(sc.x, sc.y, 2.0*depth-1.0, 1.0); + vec4 pos = inv_proj * ndc; + pos /= pos.w; + pos.w = 1.0; + return pos; +} + +float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl, vec2 pos_screen) +{ + stc.xyz /= stc.w; + stc.z += shadow_bias; + + stc.x = floor(stc.x*shadow_res.x + fract(pos_screen.y*0.666666666))/shadow_res.x; // add some jitter to X sample pos according to Y to disguise the snapping going on here + float cs = shadow2D(shadowMap, stc.xyz).x; + + float shadow = cs; + + shadow += shadow2D(shadowMap, stc.xyz+vec3(2.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x; + shadow += shadow2D(shadowMap, stc.xyz+vec3(1.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x; + shadow += shadow2D(shadowMap, stc.xyz+vec3(-2.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x; + shadow += shadow2D(shadowMap, stc.xyz+vec3(-1.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x; + + + return shadow*0.2; +} + +float pcfSpotShadow(sampler2DShadow shadowMap, vec4 stc, float scl, vec2 pos_screen) +{ + stc.xyz /= stc.w; + stc.z += spot_shadow_bias*scl; + stc.x = floor(proj_shadow_res.x * stc.x + fract(pos_screen.y*0.666666666)) / proj_shadow_res.x; // snap + + float cs = shadow2D(shadowMap, stc.xyz).x; + float shadow = cs; + + vec2 off = 1.0/proj_shadow_res; + off.y *= 1.5; + + shadow += shadow2D(shadowMap, stc.xyz+vec3(off.x*2.0, off.y, 0.0)).x; + shadow += shadow2D(shadowMap, stc.xyz+vec3(off.x, -off.y, 0.0)).x; + shadow += shadow2D(shadowMap, stc.xyz+vec3(-off.x, off.y, 0.0)).x; + shadow += shadow2D(shadowMap, stc.xyz+vec3(-off.x*2.0, -off.y, 0.0)).x; + + return shadow*0.2; +} + +void main() +{ + vec2 pos_screen = vary_fragcoord.xy; + + //try doing an unproject here + + vec4 pos = getPosition(pos_screen); + + vec3 norm = texture2DRect(normalMap, pos_screen).xyz; + norm = decode_normal(norm.xy); // unpack norm + + /*if (pos.z == 0.0) // do nothing for sky *FIX: REMOVE THIS IF/WHEN THE POSITION MAP IS BEING USED AS A STENCIL + { + frag_color = vec4(0.0); // doesn't matter + return; + }*/ + + float shadow = 0.0; + float dp_directional_light = max(0.0, dot(norm, sun_dir.xyz)); + + vec3 shadow_pos = pos.xyz; + vec3 offset = sun_dir.xyz * (1.0-dp_directional_light); + + vec4 spos = vec4(shadow_pos+offset*shadow_offset, 1.0); + + if (spos.z > -shadow_clip.w) + { + if (dp_directional_light == 0.0) + { + // if we know this point is facing away from the sun then we know it's in shadow without having to do a squirrelly shadow-map lookup + shadow = 0.0; + } + else + { + vec4 lpos; + + vec4 near_split = shadow_clip*-0.75; + vec4 far_split = shadow_clip*-1.25; + vec4 transition_domain = near_split-far_split; + float weight = 0.0; + + if (spos.z < near_split.z) + { + lpos = shadow_matrix[3]*spos; + + float w = 1.0; + w -= max(spos.z-far_split.z, 0.0)/transition_domain.z; + shadow += pcfShadow(shadowMap3, lpos, 0.25, pos_screen)*w; + weight += w; + shadow += max((pos.z+shadow_clip.z)/(shadow_clip.z-shadow_clip.w)*2.0-1.0, 0.0); + } + + if (spos.z < near_split.y && spos.z > far_split.z) + { + lpos = shadow_matrix[2]*spos; + + float w = 1.0; + w -= max(spos.z-far_split.y, 0.0)/transition_domain.y; + w -= max(near_split.z-spos.z, 0.0)/transition_domain.z; + shadow += pcfShadow(shadowMap2, lpos, 0.5, pos_screen)*w; + weight += w; + } + + if (spos.z < near_split.x && spos.z > far_split.y) + { + lpos = shadow_matrix[1]*spos; + + float w = 1.0; + w -= max(spos.z-far_split.x, 0.0)/transition_domain.x; + w -= max(near_split.y-spos.z, 0.0)/transition_domain.y; + shadow += pcfShadow(shadowMap1, lpos, 0.75, pos_screen)*w; + weight += w; + } + + if (spos.z > far_split.x) + { + lpos = shadow_matrix[0]*spos; + + float w = 1.0; + w -= max(near_split.x-spos.z, 0.0)/transition_domain.x; + + shadow += pcfShadow(shadowMap0, lpos, 1.0, pos_screen)*w; + weight += w; + } + + + shadow /= weight; + + // take the most-shadowed value out of these two: + // * the blurred sun shadow in the light (shadow) map + // * an unblurred dot product between the sun and this norm + // the goal is to err on the side of most-shadow to fill-in shadow holes and reduce artifacting + shadow = min(shadow, dp_directional_light); + + //lpos.xy /= lpos.w*32.0; + //if (fract(lpos.x) < 0.1 || fract(lpos.y) < 0.1) + //{ + // shadow = 0.0; + //} + + } + } + else + { + // more distant than the shadow map covers + shadow = 1.0; + } + + frag_color[0] = shadow; + frag_color[1] = 1.0; + + spos = vec4(shadow_pos+norm*spot_shadow_offset, 1.0); + + //spotlight shadow 1 + vec4 lpos = shadow_matrix[4]*spos; + frag_color[2] = pcfSpotShadow(shadowMap4, lpos, 0.8, pos_screen); + + //spotlight shadow 2 + lpos = shadow_matrix[5]*spos; + frag_color[3] = pcfSpotShadow(shadowMap5, lpos, 0.8, pos_screen); + + //frag_color.rgb = pos.xyz; + //frag_color.b = shadow; +} diff --git a/indra/newview/app_settings/shaders/class3/deferred/sunLightSSAOF.glsl b/indra/newview/app_settings/shaders/class3/deferred/sunLightSSAOF.glsl new file mode 100644 index 0000000000..58f3f2f91e --- /dev/null +++ b/indra/newview/app_settings/shaders/class3/deferred/sunLightSSAOF.glsl @@ -0,0 +1,308 @@ +/** + * @file sunLightSSAOF.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 + +/*[EXTRA_CODE_HERE]*/ + +#ifdef DEFINE_GL_FRAGCOLOR +out vec4 frag_color; +#else +#define frag_color gl_FragColor +#endif + +//class 2 -- shadows and SSAO + +uniform sampler2DRect depthMap; +uniform sampler2DRect normalMap; +uniform sampler2DShadow shadowMap0; +uniform sampler2DShadow shadowMap1; +uniform sampler2DShadow shadowMap2; +uniform sampler2DShadow shadowMap3; +uniform sampler2DShadow shadowMap4; +uniform sampler2DShadow shadowMap5; +uniform sampler2D noiseMap; + + +// Inputs +uniform mat4 shadow_matrix[6]; +uniform vec4 shadow_clip; +uniform float ssao_radius; +uniform float ssao_max_radius; +uniform float ssao_factor; +uniform float ssao_factor_inv; + +VARYING vec2 vary_fragcoord; + +uniform mat4 inv_proj; +uniform vec2 screen_res; +uniform vec2 proj_shadow_res; +uniform vec3 sun_dir; + +uniform vec2 shadow_res; + +uniform float shadow_bias; +uniform float shadow_offset; + +uniform float spot_shadow_bias; +uniform float spot_shadow_offset; + +vec3 decode_normal (vec2 enc); + +vec4 getPosition(vec2 pos_screen) +{ + float depth = texture2DRect(depthMap, pos_screen.xy).r; + vec2 sc = pos_screen.xy*2.0; + sc /= screen_res; + sc -= vec2(1.0,1.0); + vec4 ndc = vec4(sc.x, sc.y, 2.0*depth-1.0, 1.0); + vec4 pos = inv_proj * ndc; + pos /= pos.w; + pos.w = 1.0; + return pos; +} + +vec2 getKern(int i) +{ + vec2 kern[8]; + // exponentially (^2) distant occlusion samples spread around origin + kern[0] = vec2(-1.0, 0.0) * 0.125*0.125; + kern[1] = vec2(1.0, 0.0) * 0.250*0.250; + kern[2] = vec2(0.0, 1.0) * 0.375*0.375; + kern[3] = vec2(0.0, -1.0) * 0.500*0.500; + kern[4] = vec2(0.7071, 0.7071) * 0.625*0.625; + kern[5] = vec2(-0.7071, -0.7071) * 0.750*0.750; + kern[6] = vec2(-0.7071, 0.7071) * 0.875*0.875; + kern[7] = vec2(0.7071, -0.7071) * 1.000*1.000; + + return kern[i]; +} + +//calculate decreases in ambient lighting when crowded out (SSAO) +float calcAmbientOcclusion(vec4 pos, vec3 norm) +{ + float ret = 1.0; + + vec2 pos_screen = vary_fragcoord.xy; + vec3 pos_world = pos.xyz; + vec2 noise_reflect = texture2D(noiseMap, vary_fragcoord.xy/128.0).xy; + + float angle_hidden = 0.0; + float points = 0; + + float scale = min(ssao_radius / -pos_world.z, ssao_max_radius); + + // it was found that keeping # of samples a constant was the fastest, probably due to compiler optimizations (unrolling?) + for (int i = 0; i < 8; i++) + { + vec2 samppos_screen = pos_screen + scale * reflect(getKern(i), noise_reflect); + vec3 samppos_world = getPosition(samppos_screen).xyz; + + vec3 diff = pos_world - samppos_world; + float dist2 = dot(diff, diff); + + // assume each sample corresponds to an occluding sphere with constant radius, constant x-sectional area + // --> solid angle shrinking by the square of distance + //radius is somewhat arbitrary, can approx with just some constant k * 1 / dist^2 + //(k should vary inversely with # of samples, but this is taken care of later) + + float funky_val = (dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0) ? 1.0 : 0.0; + angle_hidden = angle_hidden + funky_val * min(1.0/dist2, ssao_factor_inv); + + // 'blocked' samples (significantly closer to camera relative to pos_world) are "no data", not "no occlusion" + float diffz_val = (diff.z > -1.0) ? 1.0 : 0.0; + points = points + diffz_val; + } + + angle_hidden = min(ssao_factor*angle_hidden/points, 1.0); + + float points_val = (points > 0.0) ? 1.0 : 0.0; + ret = (1.0 - (points_val * angle_hidden)); + + ret = max(ret, 0.0); + return min(ret, 1.0); +} + +float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl, vec2 pos_screen) +{ + stc.xyz /= stc.w; + stc.z += shadow_bias; + + stc.x = floor(stc.x*shadow_res.x + fract(pos_screen.y*0.666666666))/shadow_res.x; + float cs = shadow2D(shadowMap, stc.xyz).x; + + float shadow = cs; + + shadow += shadow2D(shadowMap, stc.xyz+vec3(2.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x; + shadow += shadow2D(shadowMap, stc.xyz+vec3(1.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x; + shadow += shadow2D(shadowMap, stc.xyz+vec3(-1.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x; + shadow += shadow2D(shadowMap, stc.xyz+vec3(-2.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x; + + return shadow*0.2; +} + +float pcfSpotShadow(sampler2DShadow shadowMap, vec4 stc, float scl, vec2 pos_screen) +{ + stc.xyz /= stc.w; + stc.z += spot_shadow_bias*scl; + stc.x = floor(proj_shadow_res.x * stc.x + fract(pos_screen.y*0.666666666)) / proj_shadow_res.x; // snap + + float cs = shadow2D(shadowMap, stc.xyz).x; + float shadow = cs; + + vec2 off = 1.0/proj_shadow_res; + off.y *= 1.5; + + shadow += shadow2D(shadowMap, stc.xyz+vec3(off.x*2.0, off.y, 0.0)).x; + shadow += shadow2D(shadowMap, stc.xyz+vec3(off.x, -off.y, 0.0)).x; + shadow += shadow2D(shadowMap, stc.xyz+vec3(-off.x, off.y, 0.0)).x; + shadow += shadow2D(shadowMap, stc.xyz+vec3(-off.x*2.0, -off.y, 0.0)).x; + + return shadow*0.2; +} + +void main() +{ + vec2 pos_screen = vary_fragcoord.xy; + + //try doing an unproject here + + vec4 pos = getPosition(pos_screen); + + vec3 norm = texture2DRect(normalMap, pos_screen).xyz; + norm = decode_normal(norm.xy); // unpack norm + + /*if (pos.z == 0.0) // do nothing for sky *FIX: REMOVE THIS IF/WHEN THE POSITION MAP IS BEING USED AS A STENCIL + { + frag_color = vec4(0.0); // doesn't matter + return; + }*/ + + float shadow = 0.0; + float dp_directional_light = max(0.0, dot(norm, sun_dir.xyz)); + + vec3 shadow_pos = pos.xyz; + vec3 offset = sun_dir.xyz * (1.0-dp_directional_light); + + vec4 spos = vec4(shadow_pos+offset*shadow_offset, 1.0); + + if (spos.z > -shadow_clip.w) + { + if (dp_directional_light == 0.0) + { + // if we know this point is facing away from the sun then we know it's in shadow without having to do a squirrelly shadow-map lookup + shadow = 0.0; + } + else + { + vec4 lpos; + + vec4 near_split = shadow_clip*-0.75; + vec4 far_split = shadow_clip*-1.25; + vec4 transition_domain = near_split-far_split; + float weight = 0.0; + + if (spos.z < near_split.z) + { + lpos = shadow_matrix[3]*spos; + + float w = 1.0; + w -= max(spos.z-far_split.z, 0.0)/transition_domain.z; + shadow += pcfShadow(shadowMap3, lpos, 0.25, pos_screen)*w; + weight += w; + shadow += max((pos.z+shadow_clip.z)/(shadow_clip.z-shadow_clip.w)*2.0-1.0, 0.0); + } + + if (spos.z < near_split.y && spos.z > far_split.z) + { + lpos = shadow_matrix[2]*spos; + + float w = 1.0; + w -= max(spos.z-far_split.y, 0.0)/transition_domain.y; + w -= max(near_split.z-spos.z, 0.0)/transition_domain.z; + shadow += pcfShadow(shadowMap2, lpos, 0.5, pos_screen)*w; + weight += w; + } + + if (spos.z < near_split.x && spos.z > far_split.y) + { + lpos = shadow_matrix[1]*spos; + + float w = 1.0; + w -= max(spos.z-far_split.x, 0.0)/transition_domain.x; + w -= max(near_split.y-spos.z, 0.0)/transition_domain.y; + shadow += pcfShadow(shadowMap1, lpos, 0.75, pos_screen)*w; + weight += w; + } + + if (spos.z > far_split.x) + { + lpos = shadow_matrix[0]*spos; + + float w = 1.0; + w -= max(near_split.x-spos.z, 0.0)/transition_domain.x; + + shadow += pcfShadow(shadowMap0, lpos, 1.0, pos_screen)*w; + weight += w; + } + + + shadow /= weight; + + // take the most-shadowed value out of these two: + // * the blurred sun shadow in the light (shadow) map + // * an unblurred dot product between the sun and this norm + // the goal is to err on the side of most-shadow to fill-in shadow holes and reduce artifacting + shadow = min(shadow, dp_directional_light); + + //lpos.xy /= lpos.w*32.0; + //if (fract(lpos.x) < 0.1 || fract(lpos.y) < 0.1) + //{ + // shadow = 0.0; + //} + + } + } + else + { + // more distant than the shadow map covers + shadow = 1.0; + } + + frag_color[0] = shadow; + frag_color[1] = calcAmbientOcclusion(pos, norm); + + spos = vec4(shadow_pos+norm*spot_shadow_offset, 1.0); + + //spotlight shadow 1 + vec4 lpos = shadow_matrix[4]*spos; + frag_color[2] = pcfSpotShadow(shadowMap4, lpos, 0.8, pos_screen); + + //spotlight shadow 2 + lpos = shadow_matrix[5]*spos; + frag_color[3] = pcfSpotShadow(shadowMap5, lpos, 0.8, pos_screen); + + //frag_color.rgb = pos.xyz; + //frag_color.b = shadow; +} diff --git a/indra/newview/app_settings/shaders/class3/deferred/sunLightV.glsl b/indra/newview/app_settings/shaders/class3/deferred/sunLightV.glsl new file mode 100644 index 0000000000..bc5eb5181d --- /dev/null +++ b/indra/newview/app_settings/shaders/class3/deferred/sunLightV.glsl @@ -0,0 +1,41 @@ +/** + * @file sunLightV.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 + * $/LicenseInfo$ + */ + +uniform mat4 modelview_projection_matrix; + +ATTRIBUTE vec3 position; + +VARYING vec2 vary_fragcoord; + +uniform vec2 screen_res; + +void main() +{ + //transform vertex + vec4 pos = modelview_projection_matrix * vec4(position.xyz, 1.0); + gl_Position = pos; + + vary_fragcoord = (pos.xy * 0.5 + 0.5)*screen_res; +} |