From 3710c6110d65d3a604f7b419cd764cf5b9b98600 Mon Sep 17 00:00:00 2001 From: Dave Parks Date: Fri, 10 Feb 2012 20:04:19 -0600 Subject: SH-2908 Rework indexed texture rendering to use a uvec4 instead of a float for texture indices in the data stream. Also rework gl_FragColor overrides to not collide with some odd driver implementations. --- .../shaders/class2/deferred/sunLightSSAOF.glsl | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) (limited to 'indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl') diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl index 6b420833b9..45b8db5adc 100644 --- a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl +++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl @@ -25,7 +25,9 @@ #extension GL_ARB_texture_rectangle : enable #ifdef DEFINE_GL_FRAGCOLOR -out vec4 gl_FragColor; +out vec4 frag_color; +#else +#define frag_color gl_FragColor; #endif //class 2 -- shadows and SSAO @@ -190,7 +192,7 @@ void main() /*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 + frag_color = vec4(0.0); // doesn't matter return; }*/ @@ -259,19 +261,19 @@ void main() shadow = 1.0; } - gl_FragColor[0] = shadow; - gl_FragColor[1] = calcAmbientOcclusion(pos, norm); + frag_color[0] = shadow; + frag_color[1] = calcAmbientOcclusion(pos, norm); spos = vec4(shadow_pos+norm*spot_shadow_offset, 1.0); //spotlight shadow 1 vec4 lpos = shadow_matrix[4]*spos; - gl_FragColor[2] = pcfShadow(shadowMap4, lpos, 0.8); + frag_color[2] = pcfShadow(shadowMap4, lpos, 0.8); //spotlight shadow 2 lpos = shadow_matrix[5]*spos; - gl_FragColor[3] = pcfShadow(shadowMap5, lpos, 0.8); + frag_color[3] = pcfShadow(shadowMap5, lpos, 0.8); - //gl_FragColor.rgb = pos.xyz; - //gl_FragColor.b = shadow; + //frag_color.rgb = pos.xyz; + //frag_color.b = shadow; } -- cgit v1.2.3 From 60fa5c3d4e23967d1ecd1e5189685ca94223cfb4 Mon Sep 17 00:00:00 2001 From: Dave Parks Date: Mon, 13 Feb 2012 19:53:39 -0600 Subject: SH-2908 Fix for shaders failing to compile when using GLSL 1.20 or 1.10 profile. --- indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl') diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl index 45b8db5adc..774f70262a 100644 --- a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl +++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl @@ -27,7 +27,7 @@ #ifdef DEFINE_GL_FRAGCOLOR out vec4 frag_color; #else -#define frag_color gl_FragColor; +#define frag_color gl_FragColor #endif //class 2 -- shadows and SSAO -- cgit v1.2.3 From 48f5b69c43d4d4a2b6e272f7ac8d706ccc0c0601 Mon Sep 17 00:00:00 2001 From: Dave Parks Date: Fri, 17 Feb 2012 19:40:48 -0600 Subject: SH-2915 Smoother transition between sun shadow splits. --- .../shaders/class2/deferred/sunLightSSAOF.glsl | 50 +++++++++++++++++----- 1 file changed, 40 insertions(+), 10 deletions(-) (limited to 'indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl') diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl index 774f70262a..02075a7687 100644 --- a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl +++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl @@ -196,7 +196,7 @@ void main() return; }*/ - float shadow = 1.0; + float shadow = 0.0; float dp_directional_light = max(0.0, dot(norm, sun_dir.xyz)); vec3 shadow_pos = pos.xyz + displace*norm; @@ -214,33 +214,63 @@ void main() else { vec4 lpos; - - if (spos.z < -shadow_clip.z) + + 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; lpos.xy *= shadow_res; - shadow = pcfShadow(shadowMap3, lpos, 0.25); + + float w = 1.0; + w -= max(spos.z-far_split.z, 0.0)/transition_domain.z; + shadow += pcfShadow(shadowMap3, lpos, 0.25)*w; + weight += w; 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) + + if (spos.z < near_split.y && spos.z > far_split.z) { lpos = shadow_matrix[2]*spos; lpos.xy *= shadow_res; - shadow = pcfShadow(shadowMap2, lpos, 0.5); + + 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, 0.75)*w; + weight += w; } - else if (spos.z < -shadow_clip.x) + + if (spos.z < near_split.x && spos.z > far_split.y) { lpos = shadow_matrix[1]*spos; lpos.xy *= shadow_res; - shadow = pcfShadow(shadowMap1, lpos, 0.75); + + 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, 0.75)*w; + weight += w; } - else + + if (spos.z > far_split.x) { lpos = shadow_matrix[0]*spos; lpos.xy *= shadow_res; - shadow = pcfShadow(shadowMap0, lpos, 1.0); + + float w = 1.0; + w -= max(near_split.x-spos.z, 0.0)/transition_domain.x; + + shadow += pcfShadow(shadowMap0, lpos, 1.0)*w; + weight += w; } + + shadow /= weight; + // 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 -- cgit v1.2.3