diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl')
| -rwxr-xr-x | indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl | 199 |
1 files changed, 191 insertions, 8 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl index dd87ddb330..50b43f6a8d 100755 --- a/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl @@ -25,17 +25,33 @@ #extension GL_ARB_texture_rectangle : enable +#define INDEXED 1 +#define NON_INDEXED 2 +#define NON_INDEXED_NO_COLOR 3 + #ifdef DEFINE_GL_FRAGCOLOR out vec4 frag_color; #else #define frag_color gl_FragColor #endif -uniform sampler2DRect depthMap; +#if HAS_SHADOW +uniform sampler2DShadow shadowMap0; +uniform sampler2DShadow shadowMap1; +uniform sampler2DShadow shadowMap2; +uniform sampler2DShadow shadowMap3; -vec4 diffuseLookup(vec2 texcoord); +uniform vec2 shadow_res; -uniform vec2 screen_res; +uniform mat4 shadow_matrix[6]; +uniform vec4 shadow_clip; +uniform float shadow_bias; + +#endif + +#ifdef USE_DIFFUSE_TEX +uniform sampler2D diffuseMap; +#endif vec3 atmosLighting(vec3 light); vec3 scaleSoftClip(vec3 light); @@ -45,11 +61,77 @@ VARYING vec3 vary_directional; VARYING vec3 vary_fragcoord; VARYING vec3 vary_position; VARYING vec3 vary_pointlight_col; +VARYING vec2 vary_texcoord0; +VARYING vec3 vary_norm; +#ifdef USE_VERTEX_COLOR VARYING vec4 vertex_color; -VARYING vec2 vary_texcoord0; +#endif + +uniform vec4 light_position[8]; +uniform vec3 light_direction[8]; +uniform vec3 light_attenuation[8]; +uniform vec3 light_diffuse[8]; + +uniform vec2 screen_res; + +vec3 calcDirectionalLight(vec3 n, vec3 l) +{ + float a = max(dot(n,l),0.0); + return vec3(a,a,a); +} + +vec3 calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float fa, float is_pointlight) +{ + //get light vector + vec3 lv = lp.xyz-v; + + //get distance + float d = dot(lv,lv); + + float da = 0.0; + + if (d > 0.0 && la > 0.0 && fa > 0.0) + { + //normalize light vector + lv = normalize(lv); + + //distance attenuation + float dist2 = d/la; + da = clamp(1.0-(dist2-1.0*(1.0-fa))/fa, 0.0, 1.0); + da = pow(da, 2.2) * 2.2; + + // spotlight coefficient. + float spot = max(dot(-ln, lv), is_pointlight); + da *= spot*spot; // GL_SPOT_EXPONENT=2 + + //angular attenuation + da *= max(dot(n, lv), 0.0); + } + + return vec3(da,da,da); +} + +#if HAS_SHADOW +float pcfShadow(sampler2DShadow shadowMap, vec4 stc) +{ + stc.xyz /= stc.w; + stc.z += shadow_bias; + + stc.x = floor(stc.x*shadow_res.x + fract(stc.y*shadow_res.y*12345))/shadow_res.x; // add some chaotic 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(-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; +} +#endif -uniform mat4 inv_proj; void main() { @@ -58,16 +140,117 @@ void main() vec4 pos = vec4(vary_position, 1.0); - vec4 diff= diffuseLookup(vary_texcoord0.xy); - vec4 col = vec4(vary_ambient + vary_directional.rgb, vertex_color.a); +#if HAS_SHADOW + float shadow = 0.0; + vec4 spos = pos; + + if (spos.z > -shadow_clip.w) + { + 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)*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)*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)*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)*w; + weight += w; + } + + + shadow /= weight; + } + else + { + shadow = 1.0; + } +#endif + +#ifdef USE_INDEXED_TEX + vec4 diff = diffuseLookup(vary_texcoord0.xy); +#else + vec4 diff = texture2D(diffuseMap,vary_texcoord0.xy); +#endif + + diff.rgb = pow(diff.rgb, vec3(2.2f, 2.2f, 2.2f)); + +#ifdef USE_VERTEX_COLOR + float vertex_color_alpha = vertex_color.a; +#else + float vertex_color_alpha = 1.0; +#endif + + vec3 normal = vary_norm; + + vec3 l = light_position[0].xyz; + vec3 dlight = calcDirectionalLight(normal, l) * 2.6; + dlight = dlight * vary_directional.rgb * vary_pointlight_col; + +#if HAS_SHADOW + vec4 col = vec4(vary_ambient + dlight * shadow, vertex_color_alpha); +#else + vec4 col = vec4(vary_ambient + dlight, vertex_color_alpha); +#endif + vec4 color = diff * col; color.rgb = atmosLighting(color.rgb); color.rgb = scaleSoftClip(color.rgb); + col = vec4(0,0,0,0); + + #define LIGHT_LOOP(i) col.rgb += light_diffuse[i].rgb * calcPointLightOrSpotLight(pos.xyz, normal, light_position[i], light_direction[i].xyz, light_attenuation[i].x, light_attenuation[i].y, light_attenuation[i].z); + + LIGHT_LOOP(1) + LIGHT_LOOP(2) + LIGHT_LOOP(3) + LIGHT_LOOP(4) + LIGHT_LOOP(5) + LIGHT_LOOP(6) + LIGHT_LOOP(7) - color.rgb += diff.rgb * vary_pointlight_col.rgb; + color.rgb += diff.rgb * vary_pointlight_col * col.rgb; frag_color = color; } |