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#pragma BLENDER_REQUIRE(common_view_lib.glsl)
void main()
{
/* Needed only because of wireframe slider.
* If we could get rid of it would be nice because of performance drain of discard. */
if (edgeStart.r == -1.0) {
discard;
}
#ifndef SELECT_EDGES
lineOutput = pack_line_data(gl_FragCoord.xy, edgeStart, edgePos);
fragColor = finalColor;
# ifdef CUSTOM_DEPTH_BIAS
vec2 dir = lineOutput.xy * 2.0 - 1.0;
bool dir_horiz = abs(dir.x) > abs(dir.y);
vec2 uv = gl_FragCoord.xy * drw_view.viewport_size_inverse;
float depth_occluder = texture(depthTex, uv).r;
float depth_min = depth_occluder;
vec2 texel_uv_size = drw_view.viewport_size_inverse;
if (dir_horiz) {
depth_min = min(depth_min, texture(depthTex, uv + vec2(-texel_uv_size.x, 0.0)).r);
depth_min = min(depth_min, texture(depthTex, uv + vec2(texel_uv_size.x, 0.0)).r);
}
else {
depth_min = min(depth_min, texture(depthTex, uv + vec2(0, -texel_uv_size.y)).r);
depth_min = min(depth_min, texture(depthTex, uv + vec2(0, texel_uv_size.y)).r);
}
float delta = abs(depth_occluder - depth_min);
if (gl_FragCoord.z < (depth_occluder + delta) && gl_FragCoord.z > depth_occluder) {
gl_FragDepth = depth_occluder;
}
else {
gl_FragDepth = gl_FragCoord.z;
}
# endif
#endif
}
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