better debug shader

.gitignore

@@ -5,4 +5,4 @@
 /Manifest.toml
 /docs/build/
 /docs/site/
-/debug/*
+/debug/

src/imagelike.jl

@@ -25,8 +25,7 @@ function draw_mesh(jsctx, jsscene, mscene::Scene, mesh, name, plot; uniforms...)
         VertexArray(mesh);
         uniforms...
     )
-    write(joinpath(@__DIR__, "..", "debug", "$(name).vert"), program.vertex_source)
-    write(joinpath(@__DIR__, "..", "debug", "$(name).frag"), program.fragment_source)
+    debug_shader(name, program)
     three_geom = wgl_convert(mscene, jsctx, program)
     update_model!(three_geom, plot)
     three_geom.name = name
@@ -166,8 +165,7 @@ function draw_js(jsctx, jsscene, mscene::Scene, plot::Volume)
         light_position = Vec3f0(20)
     )
 
-    write(joinpath(@__DIR__, "..", "debug", "volume.vert"), program.vertex_source)
-    write(joinpath(@__DIR__, "..", "debug", "volume.frag"), program.fragment_source)
+    debug_shader("volume", program)
 
     three_geom = wgl_convert(mscene, jsctx, program)
     three_geom.matrixAutoUpdate = false

src/lines.jl

@@ -54,8 +54,7 @@ function draw_js(jsctx, jsscene, mscene::Scene, plot::LineSegments)
     program = create_shader(mscene, plot)
     mesh = wgl_convert(mscene, jsctx, program)
     update_model!(mesh, plot)
-    write(joinpath(@__DIR__, "..", "debug", "linesegments.vert"), program.program.vertex_source)
-    write(joinpath(@__DIR__, "..", "debug", "linesegments.frag"), program.program.fragment_source)
+    debug_shader("linesegments", program.program)
     mesh.name = "LineSegments"
     jsscene.add(mesh)
 end

src/meshes.jl

@@ -96,9 +96,7 @@ end
 function draw_js(jsctx, jsscene, scene::Scene, plot::Mesh)
     program = create_shader(scene, plot)
     mesh = wgl_convert(scene, jsctx, program)
-
-    write(joinpath(@__DIR__, "..", "debug", "mesh.vert"), program.vertex_source)
-    write(joinpath(@__DIR__, "..", "debug", "mesh.frag"), program.fragment_source)
+    debug_shader("mesh", program)
     mesh.name = "Mesh"
     update_model!(mesh, plot)
     jsscene.add(mesh)

src/particles.jl

@@ -204,8 +204,7 @@ function draw_js(jsctx, jsscene, scene::Scene, plot::MeshScatter)
 end
 function draw_js(jsctx, jsscene, scene::Scene, plot::AbstractPlotting.Text)
     program = create_shader(scene, plot)
-    write(joinpath(@__DIR__, "..", "debug", "text.vert"), program.program.vertex_source)
-    write(joinpath(@__DIR__, "..", "debug", "text.frag"), program.program.fragment_source)
+    debug_shader("text", program.program)
     mesh = wgl_convert(scene, jsctx, program)
     mesh.name = "Text"
     update_model!(mesh, plot)
@@ -215,9 +214,7 @@ function draw_js(jsctx, jsscene, scene::Scene, plot::Scatter)
     program = create_shader(scene, plot)
     mesh = wgl_convert(scene, jsctx, program)
 
-    write(joinpath(@__DIR__, "..", "debug", "scatter.vert"), program.program.vertex_source)
-    write(joinpath(@__DIR__, "..", "debug", "scatter.frag"), program.program.fragment_source)
-
+    debug_shader("scatter", program.program)
     mesh.name = "Scatter"
     update_model!(mesh, plot)
     jsscene.add(mesh)

src/webgl.jl

@@ -291,6 +291,12 @@ function wgl_convert(scene, jsctx, program::Program)
 end
 
 
+function debug_shader(name, program)
+    dir = joinpath(@__DIR__, "..", "debug")
+    isdir(dir) || mkdir(dir)
+    write(joinpath(dir "$(name).frag"), program.fragment_source)
+end
+
 function update_model!(geom, plot)
     geom.matrixAutoUpdate = false
     geom.matrix.set(plot.model[]'...)