{"id":979,"date":"2025-05-22T16:31:48","date_gmt":"2025-05-22T23:31:48","guid":{"rendered":"http:\/\/fx-td.com\/houdiniandchill\/?p=979"},"modified":"2025-05-22T16:40:36","modified_gmt":"2025-05-22T23:40:36","slug":"archived-post-by-mattiasmalmer-80","status":"publish","type":"post","link":"http:\/\/fx-td.com\/houdiniandchill\/2025\/05\/22\/archived-post-by-mattiasmalmer-80\/","title":{"rendered":"Archived post by mattiasmalmer"},"content":{"rendered":"
\n

cateye…<\/p>\n

“`
\n#bind layer src? val=0 #bind layer !&dst
\ninline float2 fibonacci_spiral(int n ,int samples) { float phi = (1.0f + sqrt(5.0f)) \/ 2.0f; \/\/ Golden ratio float angle = 2.0f * M_PI * phi * n; float r = 1.0f * sqrt((float)n \/samples); \/\/ Normalized radius float x = r * cos(angle); float y = r * sin(angle); return (float2)(x,y); }
\ninline float2 scale_along_vector(float2 pos, float2 dir, float scale) { \/\/ Normalize the direction float2 n = normalize(dir); \/\/ Project pos onto dir float proj_len = dot(pos, n); float2 proj = proj_len * n; \/\/ Compute the component orthogonal to dir float2 ortho = pos – proj; \/\/ Scale only the projection return proj * scale + ortho; }<\/p>\n

@KERNEL { float2 pos=(float2)(@ix,@iy); float4 color=(float4)(0,0,0,0);
\n for (int i=0; i<@samples; i++) { float2 disc=fibonacci_spiral(i,@samples)*@radii<\/a>; float2 dir=pos-(float2)(@xres,@yres)*.5f; float dist=length(dir)\/length((float2)(@xres,@yres)*.5f); disc=scale_along_vector(disc , dir ,(1-pow(dist,1.0f)*@squash<\/a>)); color+=@src.bufferSample<\/a>(pos+disc); }
\n @dst.set(color\/@samples<\/a>); }
\n“`
\njust make radii, squash and (int)samples in the bindings<\/p>\n

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http:\/\/fx-td.com\/houdiniandchill\/wp-content\/uploads\/discord\/20253105\/22\/25\/image.png<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

cateye… “` #bind layer src? val=0 #bind layer !&dst inline float2 fibonacci_spiral(int n ,int samples) { float phi = (1.0f + sqrt(5.0f)) \/ 2.0f; \/\/ Golden ratio float angle = 2.0f * M_PI * phi * n; float r = 1.0f * sqrt((float)n \/samples); \/\/ Normalized radius float x = r * cos(angle); float y … Continue reading Archived post by mattiasmalmer<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[16],"tags":[],"_links":{"self":[{"href":"http:\/\/fx-td.com\/houdiniandchill\/wp-json\/wp\/v2\/posts\/979"}],"collection":[{"href":"http:\/\/fx-td.com\/houdiniandchill\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/fx-td.com\/houdiniandchill\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/fx-td.com\/houdiniandchill\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/fx-td.com\/houdiniandchill\/wp-json\/wp\/v2\/comments?post=979"}],"version-history":[{"count":0,"href":"http:\/\/fx-td.com\/houdiniandchill\/wp-json\/wp\/v2\/posts\/979\/revisions"}],"wp:attachment":[{"href":"http:\/\/fx-td.com\/houdiniandchill\/wp-json\/wp\/v2\/media?parent=979"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/fx-td.com\/houdiniandchill\/wp-json\/wp\/v2\/categories?post=979"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/fx-td.com\/houdiniandchill\/wp-json\/wp\/v2\/tags?post=979"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}