From 4353eeb9288c95b98935e60928ec0b80de4e6145 Mon Sep 17 00:00:00 2001 From: Dave Parks Date: Tue, 24 May 2011 15:29:33 -0500 Subject: SH-469 GL_ARB_texture_multisample support --- .../shaders/class1/deferred/multiSpotLightMSF.glsl | 233 +++++++++++++++++++++ 1 file changed, 233 insertions(+) create mode 100644 indra/newview/app_settings/shaders/class1/deferred/multiSpotLightMSF.glsl (limited to 'indra/newview/app_settings/shaders/class1/deferred/multiSpotLightMSF.glsl') diff --git a/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightMSF.glsl b/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightMSF.glsl new file mode 100644 index 0000000000..bdaa8e59c4 --- /dev/null +++ b/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightMSF.glsl @@ -0,0 +1,233 @@ +/** + * @file multiSpotLightF.glsl + * + * $LicenseInfo:firstyear=2007&license=viewerlgpl$ + * $/LicenseInfo$ + */ + +#version 120 + +//class 1 -- no shadows + +#extension GL_ARB_texture_rectangle : enable +#extension GL_ARB_texture_multisample : enable + +uniform sampler2DMS diffuseRect; +uniform sampler2DMS specularRect; +uniform sampler2DMS depthMap; +uniform sampler2DMS normalMap; +uniform sampler2D noiseMap; +uniform sampler2D lightFunc; +uniform sampler2D projectionMap; + +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; + +varying vec4 vary_light; + +varying vec4 vary_fragcoord; +uniform vec2 screen_res; + +uniform mat4 inv_proj; + +vec4 texture2DLodSpecular(sampler2D projectionMap, vec2 tc, float lod) +{ + vec4 ret = texture2DLod(projectionMap, tc, lod); + + vec2 dist = tc-vec2(0.5); + + float det = max(1.0-lod/(proj_lod*0.5), 0.0); + + float d = dot(dist,dist); + + ret *= min(clamp((0.25-d)/0.25, 0.0, 1.0)+det, 1.0); + + return ret; +} + +vec4 texture2DLodDiffuse(sampler2D projectionMap, vec2 tc, float lod) +{ + vec4 ret = texture2DLod(projectionMap, tc, lod); + + 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); + + 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(ivec2 pos_screen, int sample) +{ + float depth = texelFetch(depthMap, pos_screen, sample).r; + vec2 sc = vec2(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() +{ + int wght = 0; + + vec3 fcol = vec3(0,0,0); + + vec2 frag = (vary_fragcoord.xy*0.5+0.5)*screen_res; + + ivec2 itc = ivec2(frag.xy); + + for (int i = 0; i < samples; ++i) + { + vec3 pos = getPosition(itc, i).xyz; + vec3 lv = vary_light.xyz-pos.xyz; + float dist2 = dot(lv,lv); + dist2 /= vary_light.w; + if (dist2 <= 1.0) + { + vec3 norm = texelFetch(normalMap, itc, i).xyz*2.0-1.0; + + 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) + { + proj_tc.xyz /= proj_tc.w; + + float fa = gl_Color.a+1.0; + float dist_atten = min(1.0-(dist2-1.0*(1.0-fa))/fa, 1.0); + if (dist_atten > 0.0) + { + lv = proj_origin-pos.xyz; + lv = normalize(lv); + float da = dot(norm, lv); + + vec3 col = vec3(0,0,0); + + vec3 diff_tex = texelFetch(diffuseRect, itc, i).rgb; + + 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 lit = 0.0; + float amb_da = proj_ambiance; + + if (da > 0.0) + { + 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); + + vec3 lcol = gl_Color.rgb * plcol.rgb * plcol.a; + + lit = da * dist_atten * noise; + + col = lcol*lit*diff_tex; + amb_da += (da*0.5)*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*gl_Color.rgb*diff_tex.rgb*amb_plcol.rgb*amb_plcol.a; + } + + + vec4 spec = texelFetch(specularRect, itc, i); + if (spec.a > 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.xy /= stc.w; + + float fatten = clamp(spec.a*spec.a+spec.a*0.5, 0.25, 1.0); + + stc.xy = (stc.xy - vec2(0.5)) * fatten + vec2(0.5); + + if (stc.x < 1.0 && + stc.y < 1.0 && + stc.x > 0.0 && + stc.y > 0.0) + { + vec4 scol = texture2DLodSpecular(projectionMap, stc.xy, proj_lod-spec.a*proj_lod); + col += dist_atten*scol.rgb*gl_Color.rgb*scol.a*spec.rgb; + } + } + } + } + + fcol += col; + ++wght; + } + } + } + } + + if (wght <= 0) + { + discard; + } + + gl_FragColor.rgb = fcol/wght; + gl_FragColor.a = 0.0; +} -- cgit v1.2.3