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authorDave Parks <davep@lindenlab.com>2010-01-08 13:31:04 -0600
committerDave Parks <davep@lindenlab.com>2010-01-08 13:31:04 -0600
commit728463b40b9794b9fa4cd5b7bad3f169033d0bc8 (patch)
tree08dce6ab30b5a5931192a68c5b83e3aa25fb7bd7 /indra/newview/app_settings/shaders/class1/deferred
parentae7324ea34492a084300497b5da7ac611ee911e8 (diff)
Cleaned up visible edges of projector frustum in diffuse/specular/ambient lighting from projectors.
Diffstat (limited to 'indra/newview/app_settings/shaders/class1/deferred')
-rw-r--r--indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl102
1 files changed, 74 insertions, 28 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
index 28bcd720c0..2c8d90d1a6 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
@@ -5,7 +5,6 @@
* $License$
*/
-
#version 120
#extension GL_ARB_texture_rectangle : enable
@@ -15,6 +14,7 @@ uniform sampler2DRect specularRect;
uniform sampler2DRect depthMap;
uniform sampler2DRect normalMap;
uniform samplerCube environmentMap;
+uniform sampler2DRect lightMap;
uniform sampler2D noiseMap;
uniform sampler2D lightFunc;
uniform sampler2D projectionMap;
@@ -26,12 +26,15 @@ 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;
@@ -40,6 +43,52 @@ 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;
@@ -68,7 +117,7 @@ void main()
{
discard;
}
-
+
vec3 norm = texture2DRect(normalMap, frag.xy).xyz*2.0-1.0;
norm = normalize(norm);
@@ -83,7 +132,11 @@ void main()
proj_tc.xyz /= proj_tc.w;
float fa = gl_Color.a+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);
@@ -101,32 +154,32 @@ 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 = 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);
- 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*gl_Color.rgb*diff_tex.rgb*amb_plcol.rgb*amb_plcol.a;
}
@@ -144,35 +197,28 @@ 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*gl_Color.rgb*scol.a*spec.rgb;
}
}
}
}
- /*if (spec.a > 0.0)
- {
- //vec3 ref = reflect(normalize(pos), norm);
- float sa = dot(normalize(lv-normalize(pos)),norm);;
- //sa = max(sa, 0.0);
- //sa = pow(sa, 128.0 * spec.a*spec.a/dist_atten)*min(dist_atten*4.0, 1.0);
- sa = texture2D(lightFunc, vec2(sa, spec.a)).a * min(dist_atten*4.0, 1.0);
- sa *= noise;
- col += da*sa*lcol*spec.rgb;
- }*/
-
gl_FragColor.rgb = col;
gl_FragColor.a = 0.0;
}