diff options
Diffstat (limited to 'drivers/gles2/shaders/canvas.glsl')
| -rw-r--r-- | drivers/gles2/shaders/canvas.glsl | 56 |
1 files changed, 34 insertions, 22 deletions
diff --git a/drivers/gles2/shaders/canvas.glsl b/drivers/gles2/shaders/canvas.glsl index bd10c49559..12ff43479b 100644 --- a/drivers/gles2/shaders/canvas.glsl +++ b/drivers/gles2/shaders/canvas.glsl @@ -297,34 +297,46 @@ LIGHT_SHADER_CODE su=s.x*0.5+0.5; sz=s.z*0.5+0.5; - highp float shadow_attenuation; + highp float shadow_attenuation=0.0; + +#ifdef USE_DEPTH_SHADOWS + +#define SHADOW_DEPTH(m_tex,m_uv) (texture2D((m_tex),(m_uv)).z) + +#else + +//#define SHADOW_DEPTH(m_tex,m_uv) dot(texture2D((m_tex),(m_uv)),highp vec4(1.0 / (256.0 * 256.0 * 256.0),1.0 / (256.0 * 256.0),1.0 / 256.0,1) ) +#define SHADOW_DEPTH(m_tex,m_uv) dot(texture2D((m_tex),(m_uv)),vec4(1.0 / (256.0 * 256.0 * 256.0),1.0 / (256.0 * 256.0),1.0 / 256.0,1) ) + +#endif + + #ifdef SHADOW_PCF5 - shadow_attenuation=0.0; - shadow_attenuation += texture2D(shadow_texture,vec2(su,sh)).z<sz?0.0:1.0; - shadow_attenuation += texture2D(shadow_texture,vec2(su+shadowpixel_size,sh)).z<sz?0.0:1.0; - shadow_attenuation += texture2D(shadow_texture,vec2(su+shadowpixel_size*2.0,sh)).z<sz?0.0:1.0; - shadow_attenuation += texture2D(shadow_texture,vec2(su-shadowpixel_size,sh)).z<sz?0.0:1.0; - shadow_attenuation += texture2D(shadow_texture,vec2(su-shadowpixel_size*2.0,sh)).z<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su,sh))<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su+shadowpixel_size,sh))<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su+shadowpixel_size*2.0,sh))<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su-shadowpixel_size,sh))<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su-shadowpixel_size*2.0,sh))<sz?0.0:1.0; shadow_attenuation/=5.0; #endif #ifdef SHADOW_PCF13 - shadow_attenuation += texture2D(shadow_texture,vec2(su,sh)).z<sz?0.0:1.0; - shadow_attenuation += texture2D(shadow_texture,vec2(su+shadowpixel_size,sh)).z<sz?0.0:1.0; - shadow_attenuation += texture2D(shadow_texture,vec2(su+shadowpixel_size*2.0,sh)).z<sz?0.0:1.0; - shadow_attenuation += texture2D(shadow_texture,vec2(su+shadowpixel_size*3.0,sh)).z<sz?0.0:1.0; - shadow_attenuation += texture2D(shadow_texture,vec2(su+shadowpixel_size*4.0,sh)).z<sz?0.0:1.0; - shadow_attenuation += texture2D(shadow_texture,vec2(su+shadowpixel_size*5.0,sh)).z<sz?0.0:1.0; - shadow_attenuation += texture2D(shadow_texture,vec2(su+shadowpixel_size*6.0,sh)).z<sz?0.0:1.0; - shadow_attenuation += texture2D(shadow_texture,vec2(su-shadowpixel_size*2.0,sh)).z<sz?0.0:1.0; - shadow_attenuation += texture2D(shadow_texture,vec2(su-shadowpixel_size*3.0,sh)).z<sz?0.0:1.0; - shadow_attenuation += texture2D(shadow_texture,vec2(su-shadowpixel_size*4.0,sh)).z<sz?0.0:1.0; - shadow_attenuation += texture2D(shadow_texture,vec2(su-shadowpixel_size*5.0,sh)).z<sz?0.0:1.0; - shadow_attenuation += texture2D(shadow_texture,vec2(su-shadowpixel_size*6.0,sh)).z<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su,sh))<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su+shadowpixel_size,sh))<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su+shadowpixel_size*2.0,sh))<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su+shadowpixel_size*3.0,sh))<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su+shadowpixel_size*4.0,sh))<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su+shadowpixel_size*5.0,sh))<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su+shadowpixel_size*6.0,sh))<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su-shadowpixel_size*2.0,sh))<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su-shadowpixel_size*3.0,sh))<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su-shadowpixel_size*4.0,sh))<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su-shadowpixel_size*5.0,sh))<sz?0.0:1.0; + shadow_attenuation += SHADOW_DEPTH(shadow_texture,vec2(su-shadowpixel_size*6.0,sh))<sz?0.0:1.0; shadow_attenuation/=13.0; #endif @@ -336,8 +348,8 @@ LIGHT_SHADER_CODE float unnormalized = su/shadowpixel_size; float fractional = fract(unnormalized); unnormalized = floor(unnormalized); - float zc = texture2D(shadow_texture,vec2((unnormalized-0.5)*shadowpixel_size,sh)).z; - float zn = texture2D(shadow_texture,vec2((unnormalized+0.5)*shadowpixel_size,sh)).z; + float zc = SHADOW_DEPTH(shadow_texture,vec2((unnormalized-0.5)*shadowpixel_size,sh)); + float zn = SHADOW_DEPTH(shadow_texture,vec2((unnormalized+0.5)*shadowpixel_size,sh)); float z = mix(zc,zn,fractional); shadow_attenuation=clamp(exp(shadow_esm_multiplier* ( z - sz )),0.0,1.0); } @@ -346,7 +358,7 @@ LIGHT_SHADER_CODE #if !defined(SHADOW_PCF5) && !defined(SHADOW_PCF13) && !defined(SHADOW_ESM) - shadow_attenuation = texture2D(shadow_texture,vec2(su+shadowpixel_size,sh)).z<sz?0.0:1.0; + shadow_attenuation = SHADOW_DEPTH(shadow_texture,vec2(su+shadowpixel_size,sh))<sz?0.0:1.0; #endif |