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Differential D3513 Diff 11330 source/blender/draw/engines/gpencil/shaders/fx/gpencil_fx_blur_frag.glsl

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source/blender/draw/engines/gpencil/shaders/fx/gpencil_fx_blur_frag.glsl

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out vec4 FragColor;
uniform sampler2D strokeColor;
uniform sampler2D strokeDepth;
uniform vec2 blur;
void main()
{
ivec2 uv = ivec2(gl_FragCoord.xy);
/* apply blurring, using a 9-tap filter with predefined gaussian weights */
/* depth */
float outdepth = 0;
outdepth += texelFetch(strokeDepth, ivec2(uv.x - 1.0 * blur[0], uv.y + 1.0 * blur[1]), 0).r * 0.0947416;
outdepth += texelFetch(strokeDepth, ivec2(uv.x - 0.0 * blur[0], uv.y + 1.0 * blur[1]), 0).r * 0.118318;
outdepth += texelFetch(strokeDepth, ivec2(uv.x + 1.0 * blur[0], uv.y + 1.0 * blur[1]), 0).r * 0.0947416;
outdepth += texelFetch(strokeDepth, ivec2(uv.x - 1.0 * blur[0], uv.y + 0.0 * blur[1]), 0).r * 0.118318;
outdepth += texelFetch(strokeDepth, ivec2(uv.x, uv.y), 0).r * 0.147761;
outdepth += texelFetch(strokeDepth, ivec2(uv.x + 1.0 * blur[0], uv.y + 0.0 * blur[1]), 0).r * 0.118318;
outdepth += texelFetch(strokeDepth, ivec2(uv.x - 1.0 * blur[0], uv.y - 1.0 * blur[1]), 0).r * 0.0947416;
outdepth += texelFetch(strokeDepth, ivec2(uv.x + 0.0 * blur[0], uv.y - 1.0 * blur[1]), 0).r * 0.118318;
outdepth += texelFetch(strokeDepth, ivec2(uv.x + 1.0 * blur[0], uv.y - 1.0 * blur[1]), 0).r * 0.0947416;
gl_FragDepth = outdepth;
/* color */
vec4 outcolor = vec4(0.0);
outcolor += texelFetch(strokeColor, ivec2(uv.x - 1.0 * blur[0], uv.y + 1.0 * blur[1]), 0) * 0.0947416;
outcolor += texelFetch(strokeColor, ivec2(uv.x - 0.0 * blur[0], uv.y + 1.0 * blur[1]), 0) * 0.118318;
outcolor += texelFetch(strokeColor, ivec2(uv.x + 1.0 * blur[0], uv.y + 1.0 * blur[1]), 0) * 0.0947416;
outcolor += texelFetch(strokeColor, ivec2(uv.x - 1.0 * blur[0], uv.y + 0.0 * blur[1]), 0) * 0.118318;
outcolor += texelFetch(strokeColor, ivec2(uv.x, uv.y), 0) * 0.147761;
outcolor += texelFetch(strokeColor, ivec2(uv.x + 1.0 * blur[0], uv.y + 0.0 * blur[1]), 0) * 0.118318;
outcolor += texelFetch(strokeColor, ivec2(uv.x - 1.0 * blur[0], uv.y - 1.0 * blur[1]), 0) * 0.0947416;
outcolor += texelFetch(strokeColor, ivec2(uv.x + 0.0 * blur[0], uv.y - 1.0 * blur[1]), 0) * 0.118318;
outcolor += texelFetch(strokeColor, ivec2(uv.x + 1.0 * blur[0], uv.y - 1.0 * blur[1]), 0) * 0.0947416;
FragColor = clamp(outcolor, 0, 1.0);
}