blob: dc5c43f417e193578a30f69f2eb393bc8467895a (
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
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
#pragma BLENDER_REQUIRE(common_view_clipping_lib.glsl)
#pragma BLENDER_REQUIRE(common_view_lib.glsl)
bool test_occlusion()
{
vec3 ndc = (gl_Position.xyz / gl_Position.w) * 0.5 + 0.5;
return (ndc.z - 0.00035) > texture(depthTex, ndc.xy).r;
}
void main()
{
GPU_INTEL_VERTEX_SHADER_WORKAROUND
/* Avoid undefined behavior after return. */
finalColor = vec4(0.0);
gl_Position = vec4(0.0);
vec3 nor;
/* Select the right normal by checking if the generic attribute is used. */
if (!all(equal(lnor.xyz, vec3(0)))) {
if (lnor.w < 0.0) {
return;
}
nor = lnor.xyz;
finalColor = colorLNormal;
}
else if (!all(equal(vnor.xyz, vec3(0)))) {
if (vnor.w < 0.0) {
return;
}
nor = vnor.xyz;
finalColor = colorVNormal;
}
else {
nor = norAndFlag.xyz;
if (all(equal(nor, vec3(0)))) {
return;
}
finalColor = colorNormal;
}
vec3 n = normalize(normal_object_to_world(nor));
vec3 world_pos = point_object_to_world(pos);
if (gl_VertexID == 0) {
if (isConstantScreenSizeNormals) {
bool is_persp = (drw_view.winmat[3][3] == 0.0);
if (is_persp) {
float dist_fac = length(cameraPos - world_pos);
float cos_fac = dot(cameraForward, cameraVec(world_pos));
world_pos += n * normalScreenSize * dist_fac * cos_fac * pixelFac * sizePixel;
}
else {
float frustrum_fac = mul_project_m4_v3_zfac(n) * sizePixel;
world_pos += n * normalScreenSize * frustrum_fac;
}
}
else {
world_pos += n * normalSize;
}
}
gl_Position = point_world_to_ndc(world_pos);
finalColor.a *= (test_occlusion()) ? alpha : 1.0;
view_clipping_distances(world_pos);
}
|
