summaryrefslogtreecommitdiff
path: root/indra/newview/app_settings/shaders/class2/deferred/sunLightMSF.glsl
diff options
context:
space:
mode:
authorDave Parks <davep@lindenlab.com>2011-10-05 19:18:58 -0500
committerDave Parks <davep@lindenlab.com>2011-10-05 19:18:58 -0500
commit1f4bc180502d1a4448e18715596a61ae9f406c4f (patch)
tree009f70b9f3d27ce28571d0f056a169497bb74b9f /indra/newview/app_settings/shaders/class2/deferred/sunLightMSF.glsl
parent194bedbb96a6dcfe90d5b731aeca8658c83f2306 (diff)
parent2b51a7a60942b1efc99cee43489ef2f92fa7a188 (diff)
merge
Diffstat (limited to 'indra/newview/app_settings/shaders/class2/deferred/sunLightMSF.glsl')
-rw-r--r--indra/newview/app_settings/shaders/class2/deferred/sunLightMSF.glsl220
1 files changed, 0 insertions, 220 deletions
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightMSF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightMSF.glsl
deleted file mode 100644
index ac4fe52655..0000000000
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightMSF.glsl
+++ /dev/null
@@ -1,220 +0,0 @@
-/**
- * @file sunLightMSF.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_texture_multisample : enable
-
-//class 2, shadows, no SSAO
-
-uniform sampler2DMS depthMap;
-uniform sampler2DMS normalMap;
-uniform sampler2DRectShadow shadowMap0;
-uniform sampler2DRectShadow shadowMap1;
-uniform sampler2DRectShadow shadowMap2;
-uniform sampler2DRectShadow 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;
-varying vec4 vary_light;
-
-uniform mat4 inv_proj;
-uniform vec2 screen_res;
-uniform vec2 shadow_res;
-uniform vec2 proj_shadow_res;
-
-uniform float shadow_bias;
-uniform float shadow_offset;
-
-uniform float spot_shadow_bias;
-uniform float spot_shadow_offset;
-
-vec4 getPosition(ivec2 pos_screen, int sample)
-{
- float depth = texelFetch(depthMap, pos_screen.xy, 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;
-}
-
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
-{
- stc.xyz /= stc.w;
- stc.z += shadow_bias*scl;
-
- float cs = shadow2DRect(shadowMap, stc.xyz).x;
- float shadow = cs;
-
- shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(1.5, 1.5, 0.0)).x, cs);
- shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(1.5, -1.5, 0.0)).x, cs);
- shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(-1.5, 1.5, 0.0)).x, cs);
- shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(-1.5, -1.5, 0.0)).x, cs);
-
- return shadow/5.0;
-
- //return shadow;
-}
-
-float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
-{
- stc.xyz /= stc.w;
- stc.z += spot_shadow_bias*scl;
-
- float cs = shadow2D(shadowMap, stc.xyz).x;
- float shadow = cs;
-
- vec2 off = 1.5/proj_shadow_res;
-
- shadow += max(shadow2D(shadowMap, stc.xyz+vec3(off.x, off.y, 0.0)).x, cs);
- shadow += max(shadow2D(shadowMap, stc.xyz+vec3(off.x, -off.y, 0.0)).x, cs);
- shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, off.y, 0.0)).x, cs);
- shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, -off.y, 0.0)).x, cs);
-
- return shadow/5.0;
-
- //return shadow;
-}
-
-void main()
-{
- vec2 pos_screen = vary_fragcoord.xy;
- ivec2 itc = ivec2(pos_screen);
-
- //try doing an unproject here
-
- vec4 fcol = vec4(0,0,0,0);
-
- for (int i = 0; i < samples; i++)
- {
- vec4 pos = getPosition(itc, i);
-
- vec4 nmap4 = texelFetch(normalMap, itc, i);
- nmap4 = vec4((nmap4.xy-0.5)*2.0,nmap4.z,nmap4.w); // unpack norm
- float displace = nmap4.w;
- vec3 norm = nmap4.xyz;
-
- /*if (pos.z == 0.0) // do nothing for sky *FIX: REMOVE THIS IF/WHEN THE POSITION MAP IS BEING USED AS A STENCIL
- {
- gl_FragColor = vec4(0.0); // doesn't matter
- return;
- }*/
-
- float shadow = 1.0;
- float dp_directional_light = max(0.0, dot(norm, vary_light.xyz));
-
- vec3 shadow_pos = pos.xyz + displace*norm;
- vec3 offset = vary_light.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;
-
- if (spos.z < -shadow_clip.z)
- {
- lpos = shadow_matrix[3]*spos;
- lpos.xy *= shadow_res;
- shadow = pcfShadow(shadowMap3, lpos, 0.25);
- shadow += max((pos.z+shadow_clip.z)/(shadow_clip.z-shadow_clip.w)*2.0-1.0, 0.0);
- }
- else if (spos.z < -shadow_clip.y)
- {
- lpos = shadow_matrix[2]*spos;
- lpos.xy *= shadow_res;
- shadow = pcfShadow(shadowMap2, lpos, 0.5);
- }
- else if (spos.z < -shadow_clip.x)
- {
- lpos = shadow_matrix[1]*spos;
- lpos.xy *= shadow_res;
- shadow = pcfShadow(shadowMap1, lpos, 0.75);
- }
- else
- {
- lpos = shadow_matrix[0]*spos;
- lpos.xy *= shadow_res;
- shadow = pcfShadow(shadowMap0, lpos, 1.0);
- }
-
- // 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;
- }
-
- fcol[0] += shadow;
- fcol[1] += 1.0;
-
- spos = vec4(shadow_pos+norm*spot_shadow_offset, 1.0);
-
- //spotlight shadow 1
- vec4 lpos = shadow_matrix[4]*spos;
- fcol[2] += pcfShadow(shadowMap4, lpos, 0.8);
-
- //spotlight shadow 2
- lpos = shadow_matrix[5]*spos;
- fcol[3] += pcfShadow(shadowMap5, lpos, 0.8);
- }
-
- gl_FragColor = fcol/samples;
-}