29 lines
927 B
GLSL
29 lines
927 B
GLSL
#version 100
|
|
|
|
const vec3 ZERO = vec3(0.0, 0.0, 0.0);
|
|
|
|
uniform mat4 view_model_matrix;
|
|
uniform mat4 projection_matrix;
|
|
|
|
uniform mat4 volume_world_matrix;
|
|
// Clipping plane, x = min z, y = max z. Used by the FFF and SLA previews to clip with a top / bottom plane.
|
|
uniform vec2 z_range;
|
|
// Clipping plane - general orientation. Used by the SLA gizmo.
|
|
uniform vec4 clipping_plane;
|
|
|
|
attribute vec3 v_position;
|
|
|
|
varying vec3 clipping_planes_dots;
|
|
varying vec4 model_pos;
|
|
|
|
void main()
|
|
{
|
|
model_pos = vec4(v_position, 1.0);
|
|
// Point in homogenous coordinates.
|
|
vec4 world_pos = volume_world_matrix * model_pos;
|
|
|
|
gl_Position = projection_matrix * view_model_matrix * model_pos;
|
|
// Fill in the scalars for fragment shader clipping. Fragments with any of these components lower than zero are discarded.
|
|
clipping_planes_dots = vec3(dot(world_pos, clipping_plane), world_pos.z - z_range.x, z_range.y - world_pos.z);
|
|
}
|