diff options
Diffstat (limited to 'drivers/gles2/shaders/canvas.glsl')
| -rw-r--r-- | drivers/gles2/shaders/canvas.glsl | 88 |
1 files changed, 58 insertions, 30 deletions
diff --git a/drivers/gles2/shaders/canvas.glsl b/drivers/gles2/shaders/canvas.glsl index 0e19736fd5..c4f0847870 100644 --- a/drivers/gles2/shaders/canvas.glsl +++ b/drivers/gles2/shaders/canvas.glsl @@ -36,7 +36,7 @@ uniform vec2 normal_flip; #endif #ifdef USE_SHADOWS -highp varying vec2 pos; +varying highp vec2 pos; #endif #endif @@ -161,11 +161,11 @@ varying vec4 local_rot; #ifdef USE_SHADOWS -uniform sampler2D shadow_texture; +uniform highp sampler2D shadow_texture; uniform float shadow_attenuation; uniform highp mat4 shadow_matrix; -highp varying vec2 pos; +varying highp vec2 pos; uniform float shadowpixel_size; #ifdef SHADOW_ESM @@ -191,8 +191,16 @@ void main() { vec3 normal = vec3(0.0,0.0,1.0); #endif - +#ifdef USE_DISTANCE_FIELD + const float smoothing = 1.0/32.0; + float distance = texture2D(texture, uv_interp).a; + color.a = smoothstep(0.5 - smoothing, 0.5 + smoothing, distance); +#else color *= texture2D( texture, uv_interp ); + +#endif + + #if defined(ENABLE_SCREEN_UV) vec2 screen_uv = gl_FragCoord.xy*screen_uv_mult; #endif @@ -222,12 +230,16 @@ FRAGMENT_SHADER_CODE float att=1.0; - vec4 light = texture2D(light_texture,light_uv_interp.xy) * light_color; + vec2 light_uv = light_uv_interp.xy; + vec4 light = texture2D(light_texture,light_uv) * light_color; +#if defined(USE_LIGHT_SHADOW_COLOR) + vec4 shadow_color=vec4(0.0,0.0,0.0,0.0); +#endif #if defined(USE_LIGHT_SHADER_CODE) //light is written by the light shader { - vec4 light_out=vec4(0.0,0.0,0.0,0.0); + vec4 light_out=light*color; LIGHT_SHADER_CODE color=light_out; } @@ -284,39 +296,51 @@ LIGHT_SHADER_CODE } - vec4 s = shadow_matrix * vec4(point,0.0,1.0); + highp vec4 s = shadow_matrix * highp vec4(point,0.0,1.0); s.xyz/=s.w; su=s.x*0.5+0.5; sz=s.z*0.5+0.5; - 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 @@ -328,8 +352,8 @@ 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); } @@ -338,11 +362,15 @@ 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 - color.rgb*=shadow_attenuation; +#if defined(USE_LIGHT_SHADOW_COLOR) + color=mix(shadow_color,color,shadow_attenuation); +#else + color*=shadow_attenuation; +#endif //use shadows #endif } |