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path: root/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
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-rw-r--r--indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl103
1 files changed, 81 insertions, 22 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
index 7ed8ed3370..cca63872de 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
@@ -24,18 +24,21 @@
*/
-#extension GL_ARB_texture_rectangle : enable
-
#ifdef DEFINE_GL_FRAGCOLOR
out vec4 frag_color;
#else
#define frag_color gl_FragColor
#endif
+//class 1 -- no shadows
+
+#extension GL_ARB_texture_rectangle : enable
+
uniform sampler2DRect diffuseRect;
uniform sampler2DRect specularRect;
uniform sampler2DRect depthMap;
uniform sampler2DRect normalMap;
+uniform samplerCube environmentMap;
uniform sampler2D noiseMap;
uniform sampler2D projectionMap;
@@ -46,6 +49,7 @@ 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;
@@ -53,19 +57,66 @@ uniform float far_clip;
uniform vec3 proj_origin; //origin of projection to be used for angular attenuation
uniform float sun_wash;
-uniform vec3 center;
uniform vec3 color;
uniform float falloff;
uniform float size;
VARYING vec4 vary_fragcoord;
+VARYING vec3 trans_center;
+
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(vec2 pos_screen)
{
- float depth = texture2DRect(depthMap, pos_screen.xy).a;
+ float depth = texture2DRect(depthMap, pos_screen.xy).r;
vec2 sc = pos_screen.xy*2.0;
sc /= screen_res;
sc -= vec2(1.0,1.0);
@@ -84,16 +135,16 @@ void main()
frag.xy *= screen_res;
vec3 pos = getPosition(frag.xy).xyz;
- vec3 lv = center.xyz-pos.xyz;
+ vec3 lv = trans_center.xyz-pos.xyz;
float dist2 = dot(lv,lv);
dist2 /= size;
if (dist2 > 1.0)
{
discard;
}
-
+
vec3 norm = texture2DRect(normalMap, frag.xy).xyz;
- norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
+ norm = vec3((norm.xy-0.5)*2.0, norm.z);
norm = normalize(norm);
float l_dist = -dot(lv, proj_n);
@@ -107,7 +158,11 @@ void main()
proj_tc.xyz /= proj_tc.w;
float fa = falloff+1.0;
- float dist_atten = clamp(1.0-(dist2-1.0*(1.0-fa))/fa, 0.0, 1.0);
+ float dist_atten = min(1.0-(dist2-1.0*(1.0-fa))/fa, 1.0);
+ if (dist_atten <= 0.0)
+ {
+ discard;
+ }
lv = proj_origin-pos.xyz;
lv = normalize(lv);
@@ -125,32 +180,32 @@ void main()
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 = texture2DLod(projectionMap, proj_tc.xy, lod);
+ vec4 plcol = texture2DLodDiffuse(projectionMap, proj_tc.xy, lod);
vec3 lcol = 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);
- float lod = diff * proj_lod;
- vec4 amb_plcol = texture2DLod(projectionMap, proj_tc.xy, lod);
- //float amb_da = mix(proj_ambiance, proj_ambiance*max(-da, 0.0), max(da, 0.0));
- float amb_da = 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;
}
@@ -168,18 +223,22 @@ void main()
{
vec3 pfinal = pos + ref * dot(pdelta, proj_n)/ds;
- vec3 stc = (proj_mat * vec4(pfinal.xyz, 1.0)).xyz;
+ vec4 stc = (proj_mat * vec4(pfinal.xyz, 1.0));
if (stc.z > 0.0)
{
- stc.xy /= stc.z+proj_near;
-
+ 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 = texture2DLod(projectionMap, stc.xy, proj_lod-spec.a*proj_lod);
+ vec4 scol = texture2DLodSpecular(projectionMap, stc.xy, proj_lod-spec.a*proj_lod);
col += dist_atten*scol.rgb*color.rgb*scol.a*spec.rgb;
}
}