mirror of
https://gitlab.com/veloren/veloren.git
synced 2024-08-30 18:12:32 +00:00
50 lines
1.2 KiB
GLSL
50 lines
1.2 KiB
GLSL
#version 330 core
|
|
|
|
#include <globals.glsl>
|
|
|
|
in uint v_pos_norm;
|
|
in uint v_col_light;
|
|
|
|
layout (std140)
|
|
uniform u_locals {
|
|
vec3 model_offs;
|
|
};
|
|
|
|
out vec3 f_pos;
|
|
flat out vec3 f_norm;
|
|
out vec3 f_col;
|
|
out float f_light;
|
|
|
|
// First 3 normals are negative, next 3 are positive
|
|
vec3 normals[6] = vec3[]( vec3(-1,0,0), vec3(0,-1,0), vec3(0,0,-1), vec3(1,0,0), vec3(0,1,0), vec3(0,0,1) );
|
|
|
|
void main() {
|
|
f_pos = vec3(
|
|
float((v_pos_norm >> 0) & 0x00FFu),
|
|
float((v_pos_norm >> 8) & 0x00FFu),
|
|
float((v_pos_norm >> 16) & 0x1FFFu)
|
|
) + model_offs;
|
|
|
|
// TODO: last 3 bits in v_pos_norm should be a number between 0 and 5, rather than 0-2 and a direction.
|
|
uint norm_axis = (v_pos_norm >> 30) & 0x3u;
|
|
|
|
// Increase array access by 3 to access positive values
|
|
uint norm_dir = ((v_pos_norm >> 29) & 0x1u) * 3u;
|
|
|
|
// Use an array to avoid conditional branching
|
|
f_norm = normals[norm_axis + norm_dir];
|
|
|
|
f_col = vec3(
|
|
float((v_col_light >> 8) & 0xFFu),
|
|
float((v_col_light >> 16) & 0xFFu),
|
|
float((v_col_light >> 24) & 0xFFu)
|
|
) / 200.0;
|
|
|
|
f_light = float(v_col_light & 0xFFu) / 255.0;
|
|
|
|
gl_Position =
|
|
proj_mat *
|
|
view_mat *
|
|
vec4(f_pos, 1);
|
|
}
|