diff options
Diffstat (limited to 'drivers/gles2/shaders/tonemap.glsl')
| -rw-r--r-- | drivers/gles2/shaders/tonemap.glsl | 164 |
1 files changed, 71 insertions, 93 deletions
diff --git a/drivers/gles2/shaders/tonemap.glsl b/drivers/gles2/shaders/tonemap.glsl index 2f671158b2..f3f6a85565 100644 --- a/drivers/gles2/shaders/tonemap.glsl +++ b/drivers/gles2/shaders/tonemap.glsl @@ -1,8 +1,7 @@ [vertex] - -layout(location=0) in highp vec4 vertex_attrib; -layout(location=4) in vec2 uv_in; +layout(location = 0) in highp vec4 vertex_attrib; +layout(location = 4) in vec2 uv_in; out vec2 uv_interp; @@ -11,9 +10,8 @@ void main() { gl_Position = vertex_attrib; uv_interp = uv_in; #ifdef V_FLIP - uv_interp.y = 1.0-uv_interp.y; + uv_interp.y = 1.0 - uv_interp.y; #endif - } [fragment] @@ -22,7 +20,6 @@ void main() { precision mediump float; #endif - in vec2 uv_interp; uniform highp sampler2D source; //texunit:0 @@ -56,64 +53,54 @@ uniform sampler2D color_correction; //texunit:3 #endif - layout(location = 0) out vec4 frag_color; #ifdef USE_GLOW_FILTER_BICUBIC // w0, w1, w2, and w3 are the four cubic B-spline basis functions -float w0(float a) -{ - return (1.0/6.0)*(a*(a*(-a + 3.0) - 3.0) + 1.0); +float w0(float a) { + return (1.0 / 6.0) * (a * (a * (-a + 3.0) - 3.0) + 1.0); } -float w1(float a) -{ - return (1.0/6.0)*(a*a*(3.0*a - 6.0) + 4.0); +float w1(float a) { + return (1.0 / 6.0) * (a * a * (3.0 * a - 6.0) + 4.0); } -float w2(float a) -{ - return (1.0/6.0)*(a*(a*(-3.0*a + 3.0) + 3.0) + 1.0); +float w2(float a) { + return (1.0 / 6.0) * (a * (a * (-3.0 * a + 3.0) + 3.0) + 1.0); } -float w3(float a) -{ - return (1.0/6.0)*(a*a*a); +float w3(float a) { + return (1.0 / 6.0) * (a * a * a); } // g0 and g1 are the two amplitude functions -float g0(float a) -{ - return w0(a) + w1(a); +float g0(float a) { + return w0(a) + w1(a); } -float g1(float a) -{ - return w2(a) + w3(a); +float g1(float a) { + return w2(a) + w3(a); } // h0 and h1 are the two offset functions -float h0(float a) -{ - return -1.0 + w1(a) / (w0(a) + w1(a)); +float h0(float a) { + return -1.0 + w1(a) / (w0(a) + w1(a)); } -float h1(float a) -{ - return 1.0 + w3(a) / (w2(a) + w3(a)); +float h1(float a) { + return 1.0 + w3(a) / (w2(a) + w3(a)); } uniform ivec2 glow_texture_size; -vec4 texture2D_bicubic(sampler2D tex, vec2 uv,int p_lod) -{ - float lod=float(p_lod); +vec4 texture2D_bicubic(sampler2D tex, vec2 uv, int p_lod) { + float lod = float(p_lod); vec2 tex_size = vec2(glow_texture_size >> p_lod); - vec2 pixel_size =1.0/tex_size; - uv = uv*tex_size + 0.5; - vec2 iuv = floor( uv ); - vec2 fuv = fract( uv ); + vec2 pixel_size = 1.0 / tex_size; + uv = uv * tex_size + 0.5; + vec2 iuv = floor(uv); + vec2 fuv = fract(uv); float g0x = g0(fuv.x); float g1x = g1(fuv.x); @@ -127,24 +114,19 @@ vec4 texture2D_bicubic(sampler2D tex, vec2 uv,int p_lod) vec2 p2 = (vec2(iuv.x + h0x, iuv.y + h1y) - 0.5) * pixel_size; vec2 p3 = (vec2(iuv.x + h1x, iuv.y + h1y) - 0.5) * pixel_size; - return g0(fuv.y) * (g0x * textureLod(tex, p0,lod) + - g1x * textureLod(tex, p1,lod)) + - g1(fuv.y) * (g0x * textureLod(tex, p2,lod) + - g1x * textureLod(tex, p3,lod)); + return (g0(fuv.y) * (g0x * textureLod(tex, p0, lod) + g1x * textureLod(tex, p1, lod))) + + (g1(fuv.y) * (g0x * textureLod(tex, p2, lod) + g1x * textureLod(tex, p3, lod))); } - - -#define GLOW_TEXTURE_SAMPLE(m_tex,m_uv,m_lod) texture2D_bicubic(m_tex,m_uv,m_lod) +#define GLOW_TEXTURE_SAMPLE(m_tex, m_uv, m_lod) texture2D_bicubic(m_tex, m_uv, m_lod) #else -#define GLOW_TEXTURE_SAMPLE(m_tex,m_uv,m_lod) textureLod(m_tex,m_uv,float(m_lod)) +#define GLOW_TEXTURE_SAMPLE(m_tex, m_uv, m_lod) textureLod(m_tex, m_uv, float(m_lod)) #endif - -vec3 tonemap_filmic(vec3 color,float white) { +vec3 tonemap_filmic(vec3 color, float white) { float A = 0.15; float B = 0.50; @@ -154,11 +136,10 @@ vec3 tonemap_filmic(vec3 color,float white) { float F = 0.30; float W = 11.2; - vec3 coltn = ((color*(A*color+C*B)+D*E)/(color*(A*color+B)+D*F))-E/F; - float whitetn = ((white*(A*white+C*B)+D*E)/(white*(A*white+B)+D*F))-E/F; - - return coltn/whitetn; + vec3 coltn = ((color * (A * color + C * B) + D * E) / (color * (A * color + B) + D * F)) - E / F; + float whitetn = ((white * (A * white + C * B) + D * E) / (white * (A * white + B) + D * F)) - E / F; + return coltn / whitetn; } vec3 tonemap_aces(vec3 color) { @@ -167,12 +148,12 @@ vec3 tonemap_aces(vec3 color) { float c = 2.43f; float d = 0.59f; float e = 0.14f; - return color = clamp((color*(a*color+b))/(color*(c*color+d)+e),vec3(0.0),vec3(1.0)); + return color = clamp((color * (a * color + b)) / (color * (c * color + d) + e), vec3(0.0), vec3(1.0)); } -vec3 tonemap_reindhart(vec3 color,float white) { +vec3 tonemap_reindhart(vec3 color, float white) { - return ( color * ( 1.0 + ( color / ( white) ) ) ) / ( 1.0 + color ); + return (color * (1.0 + (color / (white)))) / (1.0 + color); } void main() { @@ -181,10 +162,10 @@ void main() { #ifdef USE_AUTO_EXPOSURE - color/=texelFetch(source_auto_exposure,ivec2(0,0),0).r/auto_exposure_grey; + color /= texelFetch(source_auto_exposure, ivec2(0, 0), 0).r / auto_exposure_grey; #endif - color*=exposure; + color *= exposure; #if defined(USE_GLOW_LEVEL1) || defined(USE_GLOW_LEVEL2) || defined(USE_GLOW_LEVEL3) || defined(USE_GLOW_LEVEL4) || defined(USE_GLOW_LEVEL5) || defined(USE_GLOW_LEVEL6) || defined(USE_GLOW_LEVEL7) #define USING_GLOW @@ -195,56 +176,54 @@ void main() { #ifdef USE_GLOW_LEVEL1 - glow+=GLOW_TEXTURE_SAMPLE(source_glow,uv_interp,1).rgb; + glow += GLOW_TEXTURE_SAMPLE(source_glow, uv_interp, 1).rgb; #endif #ifdef USE_GLOW_LEVEL2 - glow+=GLOW_TEXTURE_SAMPLE(source_glow,uv_interp,2).rgb; + glow += GLOW_TEXTURE_SAMPLE(source_glow, uv_interp, 2).rgb; #endif #ifdef USE_GLOW_LEVEL3 - glow+=GLOW_TEXTURE_SAMPLE(source_glow,uv_interp,3).rgb; + glow += GLOW_TEXTURE_SAMPLE(source_glow, uv_interp, 3).rgb; #endif #ifdef USE_GLOW_LEVEL4 - glow+=GLOW_TEXTURE_SAMPLE(source_glow,uv_interp,4).rgb; + glow += GLOW_TEXTURE_SAMPLE(source_glow, uv_interp, 4).rgb; #endif #ifdef USE_GLOW_LEVEL5 - glow+=GLOW_TEXTURE_SAMPLE(source_glow,uv_interp,5).rgb; + glow += GLOW_TEXTURE_SAMPLE(source_glow, uv_interp, 5).rgb; #endif #ifdef USE_GLOW_LEVEL6 - glow+=GLOW_TEXTURE_SAMPLE(source_glow,uv_interp,6).rgb; + glow += GLOW_TEXTURE_SAMPLE(source_glow, uv_interp, 6).rgb; #endif #ifdef USE_GLOW_LEVEL7 - glow+=GLOW_TEXTURE_SAMPLE(source_glow,uv_interp,7).rgb; + glow += GLOW_TEXTURE_SAMPLE(source_glow, uv_interp, 7).rgb; #endif - glow *= glow_intensity; #endif - #ifdef USE_REINDHART_TONEMAPPER - color.rgb = tonemap_reindhart(color.rgb,white); + color.rgb = tonemap_reindhart(color.rgb, white); -# if defined(USING_GLOW) - glow = tonemap_reindhart(glow,white); -# endif +#if defined(USING_GLOW) + glow = tonemap_reindhart(glow, white); +#endif #endif #ifdef USE_FILMIC_TONEMAPPER - color.rgb = tonemap_filmic(color.rgb,white); + color.rgb = tonemap_filmic(color.rgb, white); -# if defined(USING_GLOW) - glow = tonemap_filmic(glow,white); -# endif +#if defined(USING_GLOW) + glow = tonemap_filmic(glow, white); +#endif #endif @@ -252,26 +231,26 @@ void main() { color.rgb = tonemap_aces(color.rgb); -# if defined(USING_GLOW) +#if defined(USING_GLOW) glow = tonemap_aces(glow); -# endif +#endif #endif //regular Linear -> SRGB conversion vec3 a = vec3(0.055); - color.rgb = mix( (vec3(1.0)+a)*pow(color.rgb,vec3(1.0/2.4))-a , 12.92*color.rgb , lessThan(color.rgb,vec3(0.0031308))); + color.rgb = mix((vec3(1.0) + a) * pow(color.rgb, vec3(1.0 / 2.4)) - a, 12.92 * color.rgb, lessThan(color.rgb, vec3(0.0031308))); #if defined(USING_GLOW) - glow = mix( (vec3(1.0)+a)*pow(glow,vec3(1.0/2.4))-a , 12.92*glow , lessThan(glow,vec3(0.0031308))); + glow = mix((vec3(1.0) + a) * pow(glow, vec3(1.0 / 2.4)) - a, 12.92 * glow, lessThan(glow, vec3(0.0031308))); #endif -//glow needs to be added in SRGB space (together with image space effects) + //glow needs to be added in SRGB space (together with image space effects) - color.rgb = clamp(color.rgb,0.0,1.0); + color.rgb = clamp(color.rgb, 0.0, 1.0); #if defined(USING_GLOW) - glow = clamp(glow,0.0,1.0); + glow = clamp(glow, 0.0, 1.0); #endif #ifdef USE_GLOW_REPLACE @@ -291,33 +270,32 @@ void main() { { glow = (glow * 0.5) + 0.5; - color.r = (glow.r <= 0.5) ? (color.r - (1.0 - 2.0 * glow.r) * color.r * (1.0 - color.r)) : (((glow.r > 0.5) && (color.r <= 0.25)) ? (color.r + (2.0 * glow.r - 1.0) * (4.0 * color.r * (4.0 * color.r + 1.0) * (color.r - 1.0) + 7.0 * color.r)) : (color.r + (2.0 * glow.r - 1.0) * (sqrt(color.r) - color.r))); - color.g = (glow.g <= 0.5) ? (color.g - (1.0 - 2.0 * glow.g) * color.g * (1.0 - color.g)) : (((glow.g > 0.5) && (color.g <= 0.25)) ? (color.g + (2.0 * glow.g - 1.0) * (4.0 * color.g * (4.0 * color.g + 1.0) * (color.g - 1.0) + 7.0 * color.g)) : (color.g + (2.0 * glow.g - 1.0) * (sqrt(color.g) - color.g))); - color.b = (glow.b <= 0.5) ? (color.b - (1.0 - 2.0 * glow.b) * color.b * (1.0 - color.b)) : (((glow.b > 0.5) && (color.b <= 0.25)) ? (color.b + (2.0 * glow.b - 1.0) * (4.0 * color.b * (4.0 * color.b + 1.0) * (color.b - 1.0) + 7.0 * color.b)) : (color.b + (2.0 * glow.b - 1.0) * (sqrt(color.b) - color.b))); + color.r = (glow.r <= 0.5) ? (color.r - (1.0 - 2.0 * glow.r) * color.r * (1.0 - color.r)) : (((glow.r > 0.5) && (color.r <= 0.25)) ? (color.r + (2.0 * glow.r - 1.0) * (4.0 * color.r * (4.0 * color.r + 1.0) * (color.r - 1.0) + 7.0 * color.r)) : (color.r + (2.0 * glow.r - 1.0) * (sqrt(color.r) - color.r))); + color.g = (glow.g <= 0.5) ? (color.g - (1.0 - 2.0 * glow.g) * color.g * (1.0 - color.g)) : (((glow.g > 0.5) && (color.g <= 0.25)) ? (color.g + (2.0 * glow.g - 1.0) * (4.0 * color.g * (4.0 * color.g + 1.0) * (color.g - 1.0) + 7.0 * color.g)) : (color.g + (2.0 * glow.g - 1.0) * (sqrt(color.g) - color.g))); + color.b = (glow.b <= 0.5) ? (color.b - (1.0 - 2.0 * glow.b) * color.b * (1.0 - color.b)) : (((glow.b > 0.5) && (color.b <= 0.25)) ? (color.b + (2.0 * glow.b - 1.0) * (4.0 * color.b * (4.0 * color.b + 1.0) * (color.b - 1.0) + 7.0 * color.b)) : (color.b + (2.0 * glow.b - 1.0) * (sqrt(color.b) - color.b))); } #endif #if defined(USING_GLOW) && !defined(USE_GLOW_SCREEN) && !defined(USE_GLOW_SOFTLIGHT) && !defined(USE_GLOW_REPLACE) //additive - color.rgb+=glow; + color.rgb += glow; #endif #ifdef USE_BCS - color.rgb = mix(vec3(0.0),color.rgb,bcs.x); - color.rgb = mix(vec3(0.5),color.rgb,bcs.y); - color.rgb = mix(vec3(dot(vec3(1.0),color.rgb)*0.33333),color.rgb,bcs.z); + color.rgb = mix(vec3(0.0), color.rgb, bcs.x); + color.rgb = mix(vec3(0.5), color.rgb, bcs.y); + color.rgb = mix(vec3(dot(vec3(1.0), color.rgb) * 0.33333), color.rgb, bcs.z); #endif #ifdef USE_COLOR_CORRECTION - color.r = texture(color_correction,vec2(color.r,0.0)).r; - color.g = texture(color_correction,vec2(color.g,0.0)).g; - color.b = texture(color_correction,vec2(color.b,0.0)).b; + color.r = texture(color_correction, vec2(color.r, 0.0)).r; + color.g = texture(color_correction, vec2(color.g, 0.0)).g; + color.b = texture(color_correction, vec2(color.b, 0.0)).b; #endif - - frag_color=vec4(color.rgb,1.0); + frag_color = vec4(color.rgb, 1.0); } |