BambuStudio/resources/shaders/110/toolpaths_lines.vs

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#version 110
attribute vec3 v_position;
attribute vec3 v_normal;
uniform mat4 view_model_matrix;
uniform mat4 projection_matrix;
uniform mat3 normal_matrix;
varying vec3 eye_normal;
void main()
{
gl_Position = projection_matrix * view_model_matrix * vec4(v_position, 1.0);
eye_normal = normal_matrix * v_normal;
}