diff options
Diffstat (limited to 'source/blender/draw/engines/eevee/shaders/effect_dof_vert.glsl')
| -rw-r--r-- | source/blender/draw/engines/eevee/shaders/effect_dof_vert.glsl | 178 |
1 files changed, 89 insertions, 89 deletions
diff --git a/source/blender/draw/engines/eevee/shaders/effect_dof_vert.glsl b/source/blender/draw/engines/eevee/shaders/effect_dof_vert.glsl index f3485f9120b..d83b410125a 100644 --- a/source/blender/draw/engines/eevee/shaders/effect_dof_vert.glsl +++ b/source/blender/draw/engines/eevee/shaders/effect_dof_vert.glsl @@ -1,9 +1,9 @@ uniform vec4 bokehParams[2]; -#define bokeh_rotation bokehParams[0].x -#define bokeh_ratio bokehParams[0].y -#define bokeh_maxsize bokehParams[0].z +#define bokeh_rotation bokehParams[0].x +#define bokeh_ratio bokehParams[0].y +#define bokeh_maxsize bokehParams[0].z uniform sampler2D nearBuffer; uniform sampler2D farBuffer; @@ -20,90 +20,90 @@ out vec2 particlecoord; /* Scatter pass, calculate a triangle covering the CoC. */ void main() { - ivec2 tex_size = textureSize(cocBuffer, 0); - /* We render to a double width texture so compute - * the target texel size accordingly */ - vec2 texel_size = vec2(0.5, 1.0) / vec2(tex_size); - - int t_id = gl_VertexID / 3; /* Triangle Id */ - - ivec2 texelco = ivec2(0); - /* some math to get the target pixel */ - texelco.x = t_id % tex_size.x; - texelco.y = t_id / tex_size.x; - - vec2 cocs = texelFetch(cocBuffer, texelco, 0).rg; - - bool is_near = (cocs.x > cocs.y); - float coc = (is_near) ? cocs.x : cocs.y; - - /* Clamp to max size for performance */ - coc = min(coc, bokeh_maxsize); - - if (coc >= 1.0) { - if (is_near) { - color = texelFetch(nearBuffer, texelco, 0); - } - else { - color = texelFetch(farBuffer, texelco, 0); - } - /* find the area the pixel will cover and divide the color by it */ - /* HACK: 4.0 out of nowhere (I suppose it's 4 pixels footprint for coc 0?) - * Makes near in focus more closer to 1.0 alpha. */ - weight = 4.0 / (coc * coc * M_PI); - color *= weight; - - /* Compute edge to discard fragment that does not belong to the other layer. */ - edge.x = (is_near) ? 1 : -1; - edge.y = (is_near) ? -tex_size.x + 1 : tex_size.x; - } - else { - /* Don't produce any fragments */ - color = vec4(0.0); - gl_Position = vec4(0.0, 0.0, 0.0, 1.0); - return; - } - - /* Generate Triangle : less memory fetches from a VBO */ - int v_id = gl_VertexID % 3; /* Vertex Id */ - - /* Extend to cover at least the unit circle */ - const float extend = (cos(M_PI / 4.0) + 1.0) * 2.0; - /* Crappy diagram - * ex 1 - * | \ - * | \ - * 1 | \ - * | \ - * | \ - * 0 | x \ - * | Circle \ - * | Origin \ - * -1 0 --------------- 2 - * -1 0 1 ex - */ - gl_Position.x = float(v_id / 2) * extend - 1.0; /* int divisor round down */ - gl_Position.y = float(v_id % 2) * extend - 1.0; - gl_Position.z = 0.0; - gl_Position.w = 1.0; - - /* Generate Triangle */ - particlecoord = gl_Position.xy; - - gl_Position.xy *= coc * texel_size * vec2(bokeh_ratio, 1.0); - gl_Position.xy -= 1.0 - 0.5 * texel_size; /* NDC Bottom left */ - gl_Position.xy += (0.5 + vec2(texelco) * 2.0) * texel_size; - - /* Push far plane to left side. */ - if (!is_near) { - gl_Position.x += 2.0 / 2.0; - } - - /* don't do smoothing for small sprites */ - if (coc > 3.0) { - smoothFac = 1.0 - 1.5 / coc; - } - else { - smoothFac = 1.0; - } + ivec2 tex_size = textureSize(cocBuffer, 0); + /* We render to a double width texture so compute + * the target texel size accordingly */ + vec2 texel_size = vec2(0.5, 1.0) / vec2(tex_size); + + int t_id = gl_VertexID / 3; /* Triangle Id */ + + ivec2 texelco = ivec2(0); + /* some math to get the target pixel */ + texelco.x = t_id % tex_size.x; + texelco.y = t_id / tex_size.x; + + vec2 cocs = texelFetch(cocBuffer, texelco, 0).rg; + + bool is_near = (cocs.x > cocs.y); + float coc = (is_near) ? cocs.x : cocs.y; + + /* Clamp to max size for performance */ + coc = min(coc, bokeh_maxsize); + + if (coc >= 1.0) { + if (is_near) { + color = texelFetch(nearBuffer, texelco, 0); + } + else { + color = texelFetch(farBuffer, texelco, 0); + } + /* find the area the pixel will cover and divide the color by it */ + /* HACK: 4.0 out of nowhere (I suppose it's 4 pixels footprint for coc 0?) + * Makes near in focus more closer to 1.0 alpha. */ + weight = 4.0 / (coc * coc * M_PI); + color *= weight; + + /* Compute edge to discard fragment that does not belong to the other layer. */ + edge.x = (is_near) ? 1 : -1; + edge.y = (is_near) ? -tex_size.x + 1 : tex_size.x; + } + else { + /* Don't produce any fragments */ + color = vec4(0.0); + gl_Position = vec4(0.0, 0.0, 0.0, 1.0); + return; + } + + /* Generate Triangle : less memory fetches from a VBO */ + int v_id = gl_VertexID % 3; /* Vertex Id */ + + /* Extend to cover at least the unit circle */ + const float extend = (cos(M_PI / 4.0) + 1.0) * 2.0; + /* Crappy diagram + * ex 1 + * | \ + * | \ + * 1 | \ + * | \ + * | \ + * 0 | x \ + * | Circle \ + * | Origin \ + * -1 0 --------------- 2 + * -1 0 1 ex + */ + gl_Position.x = float(v_id / 2) * extend - 1.0; /* int divisor round down */ + gl_Position.y = float(v_id % 2) * extend - 1.0; + gl_Position.z = 0.0; + gl_Position.w = 1.0; + + /* Generate Triangle */ + particlecoord = gl_Position.xy; + + gl_Position.xy *= coc * texel_size * vec2(bokeh_ratio, 1.0); + gl_Position.xy -= 1.0 - 0.5 * texel_size; /* NDC Bottom left */ + gl_Position.xy += (0.5 + vec2(texelco) * 2.0) * texel_size; + + /* Push far plane to left side. */ + if (!is_near) { + gl_Position.x += 2.0 / 2.0; + } + + /* don't do smoothing for small sprites */ + if (coc > 3.0) { + smoothFac = 1.0 - 1.5 / coc; + } + else { + smoothFac = 1.0; + } } |