193 lines
3.4 KiB
Plaintext
193 lines
3.4 KiB
Plaintext
{
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"connections": [
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"label": "Slope Blur",
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"instance": "vec4 $(name)_fct(vec2 uv) {\n\tfloat dx = 1.0/$size;\n float v = $heightmap(uv);\n\tvec2 slope = vec2($heightmap(uv+vec2(dx, 0.0))-v, $heightmap(uv+vec2(0.0, dx))-v);\n\tfloat slope_strength = length(slope)*$size;\n\tvec2 e = dx*normalize(slope);\n\tvec4 rv = vec4(0.0);\n\tfloat sum = 0.0;\n\tfloat sigma = max($sigma*slope_strength, 0.0001);\n\tfor (float i = 0.0; i <= 50.0; i += 1.0) {\n\t\tfloat coef = exp(-0.5*(pow(i/sigma, 2.0)))/(6.28318530718*sigma*sigma);\n\t\trv += $in(uv+i*e)*coef;\n\t\tsum += coef;\n\t}\n\treturn rv/sum;\n}",
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