90 lines
2.5 KiB
GLSL
90 lines
2.5 KiB
GLSL
#version 140
|
|
|
|
const vec3 ZERO = vec3(0.0, 0.0, 0.0);
|
|
const float EPSILON = 0.0001;
|
|
|
|
struct PrintVolumeDetection
|
|
{
|
|
// 0 = rectangle, 1 = circle, 2 = custom, 3 = invalid
|
|
int type;
|
|
// type = 0 (rectangle):
|
|
// x = min.x, y = min.y, z = max.x, w = max.y
|
|
// type = 1 (circle):
|
|
// x = center.x, y = center.y, z = radius
|
|
vec4 xy_data;
|
|
// x = min z, y = max z
|
|
vec2 z_data;
|
|
};
|
|
|
|
struct SlopeDetection
|
|
{
|
|
bool actived;
|
|
float normal_z;
|
|
mat3 volume_world_normal_matrix;
|
|
};
|
|
|
|
uniform vec4 uniform_color;
|
|
uniform bool use_color_clip_plane;
|
|
uniform vec4 uniform_color_clip_plane_1;
|
|
uniform vec4 uniform_color_clip_plane_2;
|
|
uniform SlopeDetection slope;
|
|
|
|
#ifdef ENABLE_ENVIRONMENT_MAP
|
|
uniform sampler2D environment_tex;
|
|
uniform bool use_environment_tex;
|
|
#endif // ENABLE_ENVIRONMENT_MAP
|
|
|
|
uniform PrintVolumeDetection print_volume;
|
|
|
|
in vec3 clipping_planes_dots;
|
|
in float color_clip_plane_dot;
|
|
|
|
// x = diffuse, y = specular;
|
|
in vec2 intensity;
|
|
|
|
in vec4 world_pos;
|
|
in float world_normal_z;
|
|
in vec3 eye_normal;
|
|
|
|
out vec4 out_color;
|
|
|
|
void main()
|
|
{
|
|
if (any(lessThan(clipping_planes_dots, ZERO)))
|
|
discard;
|
|
|
|
vec4 color;
|
|
if (use_color_clip_plane)
|
|
color = (color_clip_plane_dot < 0.0) ? uniform_color_clip_plane_1 : uniform_color_clip_plane_2;
|
|
else
|
|
color = uniform_color;
|
|
|
|
if (slope.actived && world_normal_z < slope.normal_z - EPSILON) {
|
|
color.rgb = vec3(0.7, 0.7, 1.0);
|
|
color.a = 1.0;
|
|
}
|
|
|
|
// if the fragment is outside the print volume -> use darker color
|
|
vec3 pv_check_min = ZERO;
|
|
vec3 pv_check_max = ZERO;
|
|
if (print_volume.type == 0) {
|
|
// rectangle
|
|
pv_check_min = world_pos.xyz - vec3(print_volume.xy_data.x, print_volume.xy_data.y, print_volume.z_data.x);
|
|
pv_check_max = world_pos.xyz - vec3(print_volume.xy_data.z, print_volume.xy_data.w, print_volume.z_data.y);
|
|
}
|
|
else if (print_volume.type == 1) {
|
|
// circle
|
|
float delta_radius = print_volume.xy_data.z - distance(world_pos.xy, print_volume.xy_data.xy);
|
|
pv_check_min = vec3(delta_radius, 0.0, world_pos.z - print_volume.z_data.x);
|
|
pv_check_max = vec3(0.0, 0.0, world_pos.z - print_volume.z_data.y);
|
|
}
|
|
color.rgb = (any(lessThan(pv_check_min, ZERO)) || any(greaterThan(pv_check_max, ZERO))) ? mix(color.rgb, ZERO, 0.3333) : color.rgb;
|
|
|
|
#ifdef ENABLE_ENVIRONMENT_MAP
|
|
if (use_environment_tex)
|
|
out_color = vec4(0.45 * texture(environment_tex, normalize(eye_normal).xy * 0.5 + 0.5).xyz + 0.8 * color.rgb * intensity.x, color.a);
|
|
else
|
|
#endif
|
|
out_color = vec4(vec3(intensity.y) + color.rgb * intensity.x, color.a);
|
|
}
|