diff options
Diffstat (limited to 'drivers/gles2/shaders/material.glsl')
| -rw-r--r-- | drivers/gles2/shaders/material.glsl | 105 |
1 files changed, 98 insertions, 7 deletions
diff --git a/drivers/gles2/shaders/material.glsl b/drivers/gles2/shaders/material.glsl index 9c2fbaee6c..1794f18801 100644 --- a/drivers/gles2/shaders/material.glsl +++ b/drivers/gles2/shaders/material.glsl @@ -140,6 +140,12 @@ varying highp vec4 shadow_coord; uniform highp mat4 shadow_matrix2; varying highp vec4 shadow_coord2; #endif +#ifdef LIGHT_USE_PSSM4 +uniform highp mat4 shadow_matrix3; +varying highp vec4 shadow_coord3; +uniform highp mat4 shadow_matrix4; +varying highp vec4 shadow_coord4; +#endif #endif @@ -290,6 +296,22 @@ VERTEX_SHADER_CODE shadow_coord2.xyz/=shadow_coord2.w; shadow_coord2.y*=0.5; #endif +#ifdef LIGHT_USE_PSSM4 + shadow_coord.x*=0.5; + shadow_coord2.x*=0.5; + + shadow_coord3 = shadow_matrix3 * vec4(vertex_interp,1.0); + shadow_coord3.xyz/=shadow_coord3.w; + shadow_coord3.xy*=vec2(0.5); + shadow_coord3.xy+=vec2(0.5); + + shadow_coord4 = shadow_matrix4 * vec4(vertex_interp,1.0); + shadow_coord4.xyz/=shadow_coord4.w; + shadow_coord4.xy*=vec2(0.5); + shadow_coord4.x+=0.5; + +#endif + #endif #ifdef USE_FOG @@ -428,7 +450,7 @@ varying vec4 var2_interp; #endif #ifdef LIGHT_USE_PSSM -uniform float light_pssm_split; +uniform vec3 light_pssm_split; #endif varying vec3 vertex_interp; @@ -504,6 +526,11 @@ varying highp vec4 shadow_coord; #ifdef LIGHT_USE_PSSM varying highp vec4 shadow_coord2; #endif +#ifdef LIGHT_USE_PSSM4 +varying highp vec4 shadow_coord3; +varying highp vec4 shadow_coord4; +#endif + uniform highp sampler2D shadow_texture; uniform highp vec2 shadow_texel_size; @@ -523,6 +550,29 @@ uniform float shadow_darkening; #ifdef USE_SHADOW_PCF +#ifdef USE_SHADOW_PCF_HQ + + +float SAMPLE_SHADOW_TEX( highp vec2 coord, highp float refdepth) { + + float avg=(SHADOW_DEPTH(shadow_texture,coord) < refdepth ? 0.0 : 1.0); + avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(shadow_texel_size.x,0.0)) < refdepth ? 0.0 : 1.0); + avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(-shadow_texel_size.x,0.0)) < refdepth ? 0.0 : 1.0); + avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(0.0,shadow_texel_size.y)) < refdepth ? 0.0 : 1.0); + avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(0.0,-shadow_texel_size.y)) < refdepth ? 0.0 : 1.0); + avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(shadow_texel_size.x,shadow_texel_size.y)) < refdepth ? 0.0 : 1.0); + avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(-shadow_texel_size.x,shadow_texel_size.y)) < refdepth ? 0.0 : 1.0); + avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(shadow_texel_size.x,-shadow_texel_size.y)) < refdepth ? 0.0 : 1.0); + avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(-shadow_texel_size.x,-shadow_texel_size.y)) < refdepth ? 0.0 : 1.0); + avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(shadow_texel_size.x*2.0,0.0)) < refdepth ? 0.0 : 1.0); + avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(-shadow_texel_size.x*2.0,0.0)) < refdepth ? 0.0 : 1.0); + avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(0.0,shadow_texel_size.y*2.0)) < refdepth ? 0.0 : 1.0); + avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(0.0,-shadow_texel_size.y*2.0)) < refdepth ? 0.0 : 1.0); + return avg*(1.0/13.0); +} + +#else + float SAMPLE_SHADOW_TEX( highp vec2 coord, highp float refdepth) { float avg=(SHADOW_DEPTH(shadow_texture,coord) < refdepth ? 0.0 : 1.0); @@ -530,9 +580,13 @@ float SAMPLE_SHADOW_TEX( highp vec2 coord, highp float refdepth) { avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(-shadow_texel_size.x,0.0)) < refdepth ? 0.0 : 1.0); avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(0.0,shadow_texel_size.y)) < refdepth ? 0.0 : 1.0); avg+=(SHADOW_DEPTH(shadow_texture,coord+vec2(0.0,-shadow_texel_size.y)) < refdepth ? 0.0 : 1.0); - return avg*0.2; + return avg*0.2; } +#endif + + + /* 16x averaging @@ -697,7 +751,7 @@ FRAGMENT_SHADER_CODE #if 0 highp vec3 splane = vec3(0.0,0.0,0.0); - if (gl_FragCoord.w > light_pssm_split) { + if (gl_FragCoord.w > light_pssm_split.x) { splane = shadow_coord.xyz; splane.y+=1.0; @@ -711,19 +765,56 @@ FRAGMENT_SHADER_CODE /* float sa_a = SAMPLE_SHADOW_TEX(shadow_coord.xy,shadow_coord.z); float sa_b = SAMPLE_SHADOW_TEX(shadow_coord2.xy,shadow_coord2.z); - if (gl_FragCoord.w > light_pssm_split) { + if (gl_FragCoord.w > light_pssm_split.x) { shadow_attenuation=sa_a; } else { shadow_attenuation=sa_b; } */ - if (gl_FragCoord.w > light_pssm_split) { - shadow_attenuation=SAMPLE_SHADOW_TEX(shadow_coord.xy,shadow_coord.z); + vec2 pssm_coord; + float pssm_z; + +#ifdef LIGHT_USE_PSSM4 + + + if (gl_FragCoord.w > light_pssm_split.y) { + + if (gl_FragCoord.w > light_pssm_split.x) { + pssm_coord=shadow_coord.xy; + pssm_z=shadow_coord.z; + + } else { + pssm_coord=shadow_coord2.xy; + pssm_z=shadow_coord2.z; + } + } else { + + + if (gl_FragCoord.w > light_pssm_split.z) { + pssm_coord=shadow_coord3.xy; + pssm_z=shadow_coord3.z; + } else { + pssm_coord=shadow_coord4.xy; + pssm_z=shadow_coord4.z; + } + } + +#else + + if (gl_FragCoord.w > light_pssm_split.x) { + pssm_coord=shadow_coord.xy; + pssm_z=shadow_coord.z; + } else { - shadow_attenuation=SAMPLE_SHADOW_TEX(shadow_coord2.xy,shadow_coord2.z); + pssm_coord=shadow_coord2.xy; + pssm_z=shadow_coord2.z; } +#endif + + //one one sample + shadow_attenuation=SAMPLE_SHADOW_TEX(pssm_coord,pssm_z); #endif |