blob: 3e7a185bb6250d73ca9f4bbe02dfe1cd6649aaa5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
uniform mat3 NormalMatrix;
uniform mat4 ViewMatrix;
uniform mat4 ProjectionMatrix;
uniform vec2 viewportSize;
/* ---- Instanciated Attribs ---- */
in vec3 pos;
in vec3 nor;
in vec3 snor;
/* ---- Per instance Attribs ---- */
in mat4 InstanceModelMatrix;
in vec4 outlineColorSize;
out vec4 pPos;
out vec3 vPos;
out vec2 ssPos;
out vec2 ssNor;
out vec4 vColSize;
/* project to screen space */
vec2 proj(vec4 pos)
{
return (0.5 * (pos.xy / pos.w) + 0.5) * viewportSize;
}
void main()
{
/* This is slow and run per vertex, but it's still faster than
* doing it per instance on CPU and sending it on via instance attrib */
mat3 NormalMatrix = transpose(inverse(mat3(ViewMatrix * InstanceModelMatrix)));
vec4 viewpos = ViewMatrix * (InstanceModelMatrix * vec4(pos, 1.0));
vPos = viewpos.xyz;
pPos = ProjectionMatrix * viewpos;
/* TODO FIX: there is still a problem with this vector
* when the bone is scaled or in persp mode. But it's
* barelly visible at the outline corners. */
ssNor = normalize((NormalMatrix * snor).xy);
ssPos = proj(pPos);
vColSize = outlineColorSize;
}
|
