Hi. Finally got around to creating a MWE: Pluto notebook here
But in doing so I had a lot of small issues. On my machine I needed to close and reopen the workbook to get changed behaviour when I switched between empty-index and .val assignment to position and markersize. The workbook takes a long time (say 20s) to start (not sure if that is an issue in itself I know there is a startup time for all workbooks). I also get rather frequent stack traces in the window used to start Pluto:
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| | |_| | | | (_| | | Version 1.6.3 (2021-09-23)
_/ |\__'_|_|_|\__'_| | Official https://julialang.org/ release
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julia> using Pluto
julia> Pluto.run()
Opening http://localhost:1234/?secret=ZRcGOkc9 in your default browser... ~ have fun!
Press Ctrl+C in this terminal to stop Pluto
From worker 2: An exception was thrown in JS: TypeError: undefined is not an object (evaluating 'scene.wgl_camera')
From worker 2: Additional message: Error while processing message {"payload":{"__javascript_type__":"JSCode","payload":{"source":" WGLMakie.insert_plot(...__eval_context__[0])\n","context":[["12575459940635311916",[{"transparency":"1448775247744666414","vertexarrays":{"position":{"flat":{"type":"Float32Array","data":[0,-1,0,1,1,-1,1,1]},"type_length":2},"uv":{"flat":{"type":"Float32Array","data":[0,0,0,0,0,0,0,0]},"type_length":2}},"visible":"17693789232690750967","uniform_updater":"3943124913470469672","attribute_updater":"9009309181735591475","faces":[0,1,2,1,3,2],"overdraw":"11032338631077554446","name":"lines-596306099531251942","uuid":"596306099531251942","uniforms":{"color":{"__javascript_type__":"TypedVector","payload":[0,0,0,0.4000000059604645]},"linewidth_start":2,"color_end":{"__javascript_type__":"TypedVector","payload":[0,0,0,0.4000000059604645]},"linewidth_end":2,"color_start":{"__javascript_type__":"TypedVector","payload":[0,0,0,0.4000000059604645]},"resolution":{"__javascript_type__":"TypedVector","payload":[1000,1000]},"linewidth":2,"lightposition":{"__javascript_type__":"TypedVector","payload":[1,1,1]},"model":[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1]},"vertex_source":"#version 300 es\nprecision mediump int;\nprecision mediump float;\nprecision mediump sampler2D;\nprecision mediump sampler3D;\n// Instance inputs: \nin vec2 position;\nvec2 get_position(){return position;}\nin vec2 uv;\nvec2 get_uv(){return uv;}\n\n// Uniforms: \nuniform vec4 color;\nvec4 get_color(){return color;}\nuniform float linewidth_start;\nfloat get_linewidth_start(){return linewidth_start;}\nuniform vec4 color_end;\nvec4 get_color_end(){return color_end;}\nuniform float linewidth_end;\nfloat get_linewidth_end(){return linewidth_end;}\nuniform vec4 color_start;\nvec4 get_color_start(){return color_start;}\nuniform vec2 resolution;\nvec2 get_resolution(){return resolution;}\nuniform float linewidth;\nfloat get_linewidth(){return linewidth;}\nuniform mat4 model;\nmat4 get_model(){return model;}\n\n\n\n\n// Per instance attributes: \nin vec2 segment_start;\nvec2 get_segment_start(){return segment_start;}\nin vec2 segment_end;\nvec2 get_segment_end(){return segment_end;}\n\nuniform mat4 projection;\nuniform mat4 view;\n\nvec2 screen_space(vec4 position)\n{\n return vec2(position.xy / position.w) * get_resolution();\n}\nvec3 tovec3(vec2 v){return vec3(v, 0.0);}\nvec3 tovec3(vec3 v){return v;}\n\nvec4 tovec4(vec3 v){return vec4(v, 1.0);}\nvec4 tovec4(vec4 v){return v;}\n\nout vec4 frag_color;\n\nvoid main()\n{\n mat4 pvm = projection * view * get_model();\n vec4 point1_clip = pvm * vec4(tovec3(get_segment_start()), 1);\n vec4 point2_clip = pvm * vec4(tovec3(get_segment_end()), 1);\n vec2 point1_screen = screen_space(point1_clip);\n vec2 point2_screen = screen_space(point2_clip);\n vec2 dir = normalize(point2_screen - point1_screen);\n vec2 normal = vec2(-dir.y, dir.x);\n vec4 anchor;\n float thickness;\n\n if(position.x == 0.0){\n anchor = point1_clip;\n frag_color = tovec4(get_color_start());\n thickness = get_linewidth_start();\n }else{\n anchor = point2_clip;\n frag_color = tovec4(get_color_end());\n thickness = get_linewidth_end();\n }\n frag_color.a = frag_color.a * min(1.0, thickness * 2.0);\n // I think GLMakie is drawing the lines too thick...\n // untill we figure out who is right, we need to add 1.0 to linewidth\n thickness = thickness > 0.0 ? thickness + 1.0 : 0.0;\n normal *= (((thickness) / 2.0) / get_resolution()) * anchor.w;\n // quadpos y (position.y) gives us the direction to expand the line\n vec4 offset = vec4(normal * position.y, 0.0, 0.0);\n // start, or end of quad, need to use current or next point as anchor\n gl_Position = anchor + offset;\n\n}\n\n","fragment_source":"#version 300 es\nprecision mediump int;\nprecision mediump float;\nprecision mediump sampler2D;\nprecision mediump sampler3D;\n\nout vec4 fragment_color;\n\n// Uniforms: \nuniform vec4 color;\nvec4 get_color(){return color;}\nuniform float linewidth_start;\nfloat get_linewidth_start(){return linewidth_start;}\nuniform vec4 color_end;\nvec4 get_color_end(){return color_end;}\nuniform float linewidth_end;\nfloat get_linewidth_end(){return linewidth_end;}\nuniform vec4 color_start;\nvec4 get_color_start(){return color_start;}\nuniform vec2 resolution;\nvec2 get_resolution(){return resolution;}\nuniform float linewidth;\nfloat get_linewidth(){return linewidth;}\nuniform mat4 model;\nmat4 get_model(){return model;}\n\n\nin vec4 frag_color;\n\nvoid main() {\n fragment_color = frag_color;\n}\n","instance_attributes":{"segment_start":{"flat":{"type":"Float32Array","data":[null,null,null,null,null,null,null,null]},"type_length":2},"segment_end":{"flat":{"type":"Float32Array","data":[null,null,null,null,null,null,null,null]},"type_length":2}}}]]]}},"msg_type":"2"}
From worker 2: Stack trace:
From worker 2: add_plot@/Users/klint/.julia/packages/WGLMakie/0tzNl/src/wglmakie.js:65
From worker 2: @/Users/klint/.julia/packages/WGLMakie/0tzNl/src/wglmakie.js:50
From worker 2: forEach@[native code]
From worker 2: insert_plot@/Users/klint/.julia/packages/WGLMakie/0tzNl/src/wglmakie.js:49
From worker 2: anonymous@
From worker 2: @/Users/klint/.julia/packages/JSServe/E7QrV/js_dependencies/JSServe.js:168
From worker 2: process_message@/Users/klint/.julia/packages/JSServe/E7QrV/js_dependencies/JSServe.js:365
From worker 2: forEach@[native code]
From worker 2: process_message@/Users/klint/.julia/packages/JSServe/E7QrV/js_dependencies/JSServe.js:369
From worker 2: process_message@/Users/klint/.julia/packages/JSServe/E7QrV/js_dependencies/JSServe.js:340
From worker 2: @/Users/klint/.julia/packages/JSServe/E7QrV/js_dependencies/JSServe.js:451
From worker 2: An exception was thrown in JS: TypeError: undefined is not an object (evaluating 'scene.wgl_camera')
From worker 2: Additional message: Error while processing message {"payload":{"__javascript_type__":"JSCode","payload":{"source":" WGLMakie.insert_plot(...__eval_context__[0])\n","co
and so on.
Also when I tried adjusting the rotation to be yaw(2t) with empty-bracket assignment to make the cube spin faster around its own axis the display was flickering like like it was trying to display both versions, until I (yet another time) restarted Pluto.@sdanisch
error, being tripped up by QuickTime keeping showing a file long after its was replaced. I get spoiled by working in a reactive environment where everything (well, almost apparently…) get updated and kept in sync. Sry,