{"id":1185,"date":"2023-02-19T00:51:12","date_gmt":"2023-02-19T04:51:12","guid":{"rendered":"https:\/\/jausoft.com\/blog\/?p=1185"},"modified":"2023-02-19T00:58:14","modified_gmt":"2023-02-19T04:58:14","slug":"more-graph-type-rendering-updates","status":"publish","type":"post","link":"https:\/\/jausoft.com\/blog\/2023\/02\/19\/more-graph-type-rendering-updates\/","title":{"rendered":"More Graph Type Rendering Updates …"},"content":{"rendered":"

Another update in the Graph Type Rendering<\/a> Saga. I will use this entry to continuously add progress in the comment section. I will wrap up the remaining issues here and a layout fix<\/em> for spacing<\/a>.<\/p>\n

Spacing Layout Issue<\/h3>\n

The ‘space<\/em>‘ spacing fix allows to render the font FreeSerif-Regular<\/em> properly as shown below. Cause was to erroneously use fixed IDs for space (and CR) which is resolved.<\/p>\n

\"\"<\/a><\/p>\n

Graph Curve Renderer Overflow Issue<\/h3>\n

Further, the so called overflow issue occurs having too much text<\/em>,
\noverflowing as in looping from the end text-block to the beginning with garbage.<\/p>\n

Root cause is our ES2 VBO GLRegion implementation using\u00a0 UNSIGNED_SHORT to store vertex-indices
\nand the triangulation code checked for integer maximums to produce a new data-set.
\nHence we hit the roof with a simple ~700 character text.<\/p>\n

For now I hacked using UNSIGNED_INT in the renderer, which is available for ES3 for glDrawElements(..).<\/em><\/p>\n

I have to validate the alternative code path later for ES2 only devices and add UNSIGNED_INT usage for ES3+ including desktop.<\/p>\n

See the long text below, rendered via one GLRegion\u00a0 ..<\/p>\n

\"\"<\/a><\/h3>\n

FreeMono-Regular is also readable now (glyph bugs listed below)<\/p>\n

\"\"<\/a><\/p>\n

Wrap up of remaining Issues<\/h3>\n

The single character lists after the font-name denote a broken glyph rendering.<\/p>\n

FreeMono Bold
\n– q
\n– 4<\/p>\n

FreeMono Regular
\n– M
\n– \u00e9 (Qu\u00e9bec)<\/p>\n

FreeSan Regular
\n– 0
\n– 8 (upper loop)<\/p>\n

FreeSerif Bold Italic
\n– \u00e6 (Kv\u00e6ven)<\/p>\n

FreeSerif Italic
\n– m
\n– u
\n– k<\/p>\n

FreeSerif Regular
\n– &<\/p>\n

FreeSan Bold: OK
\nFreeSerif Bold: OK
\nUbuntu Light: OK
\nUbuntu Light Italic: OK
\nUbuntu Regular: OK<\/p>\n","protected":false},"excerpt":{"rendered":"

Another update in the Graph Type Rendering Saga. I will use this entry to continuously add progress in the comment section. I will wrap up the remaining issues here and a layout fix for spacing.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[7,3,8],"tags":[9,13,22,71,16,44,33,31,17,46,68],"class_list":["post-1185","post","type-post","status-publish","format-standard","hentry","category-3d-opengl","category-computer-stuff","category-jogamp","tag-3d","tag-embedded-device","tag-fonts","tag-graph_type_rendering","tag-java","tag-jogamp","tag-linux","tag-mobile","tag-opengl","tag-openjdk","tag-type-rendering"],"_links":{"self":[{"href":"https:\/\/jausoft.com\/blog\/wp-json\/wp\/v2\/posts\/1185","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jausoft.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jausoft.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jausoft.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/jausoft.com\/blog\/wp-json\/wp\/v2\/comments?post=1185"}],"version-history":[{"count":4,"href":"https:\/\/jausoft.com\/blog\/wp-json\/wp\/v2\/posts\/1185\/revisions"}],"predecessor-version":[{"id":1191,"href":"https:\/\/jausoft.com\/blog\/wp-json\/wp\/v2\/posts\/1185\/revisions\/1191"}],"wp:attachment":[{"href":"https:\/\/jausoft.com\/blog\/wp-json\/wp\/v2\/media?parent=1185"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jausoft.com\/blog\/wp-json\/wp\/v2\/categories?post=1185"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jausoft.com\/blog\/wp-json\/wp\/v2\/tags?post=1185"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}