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Grégoire Locqueville
purescript-gargantext
Commits
6f2fbc48
Commit
6f2fbc48
authored
2 years ago
by
Przemyslaw Kaminski
Committed by
Alexandre Delanoë
2 years ago
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[graph] fix screenshot fragment shader function
parent
90da6d31
Changes
1
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1 changed file
with
20 additions
and
13 deletions
+20
-13
sigmajs-screenshot.js
src/external-deps/sigmajs-screenshot.js
+20
-13
No files found.
src/external-deps/sigmajs-screenshot.js
View file @
6f2fbc48
...
...
@@ -31,8 +31,8 @@ const fragmentShader = `
precision mediump float;
// our 2 canvases
uniform sampler2D u_
canvas1
;
uniform sampler2D u_
canvas2
;
uniform sampler2D u_
nodes
;
uniform sampler2D u_
edges
;
// the texCoords passed in from the vertex shader.
// note: we're only using 1 set of texCoords which means
...
...
@@ -40,15 +40,22 @@ precision mediump float;
varying vec2 v_texCoord;
void main() {
// Look up a pixel from first canvas
vec4 color1 = texture2D(u_canvas1, v_texCoord);
// Look up a pixel from second canvas
vec4 color2 = texture2D(u_canvas2, v_texCoord);
// return the 2 colors multiplied
// TODO Modify this
gl_FragColor = color1 * color2;
// Look up a pixel from nodes canvas
vec4 n_color = texture2D(u_nodes, v_texCoord);
// Look up a pixel from edges canvas
vec4 e_color = texture2D(u_edges, v_texCoord);
// return overlay of n_color on e_color
if(all(equal(n_color.rgb, vec3(1, 1, 1)))) { // n_color is white, use e_color
gl_FragColor = e_color;
} else {
if(all(equal(e_color.rgb, vec3(1, 1, 1)))) { // e_color is white, set transparent
gl_FragColor = vec4(e_color.rgb, 1);
} else {
gl_FragColor = n_color;
}
}
}
`
;
...
...
@@ -125,8 +132,8 @@ export function takeScreenshot(sigma) {
// Set a rectangle the same size as the image.
setRectangle
(
gl
,
0
,
0
,
gl
.
canvas
.
width
,
gl
.
canvas
.
height
);
let
tex1
=
setupTexture
(
gl
,
nodes
,
0
,
program
,
"u_
canvas1
"
);
let
tex2
=
setupTexture
(
gl
,
edges
,
1
,
program
,
"u_
canvas2
"
);
let
tex1
=
setupTexture
(
gl
,
nodes
,
0
,
program
,
"u_
nodes
"
);
let
tex2
=
setupTexture
(
gl
,
edges
,
1
,
program
,
"u_
edges
"
);
// Draw the rectangle.
gl
.
drawArrays
(
gl
.
TRIANGLES
,
0
,
6
);
...
...
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