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uniform float wireStepParam;
in vec3 pos;
in vec3 nor;
in float wd; /* wiredata */
float get_edge_sharpness(float wd)
{
return ((wd == 0.0) ? -1.5 : wd) + wireStepParam;
}
/* Geometry shader version */
#if defined(SELECT_EDGES) || defined(USE_GEOM)
out vec3 finalColor_g;
out float edgeSharpness_g;
#else /* USE_GEOM */
flat out vec2 edgeStart;
noperspective out vec2 edgePos;
out vec3 finalColor;
flat out float edgeSharpness;
# define finalColor_g finalColor
# define edgeSharpness_g edgeSharpness
#endif /* SELECT_EDGES */
uniform bool useColoring;
uniform bool isTransform;
uniform bool isObjectColor;
uniform bool isRandomColor;
void wire_color_get(out vec3 rim_col, out vec3 wire_col)
{
int flag = int(abs(ObjectInfo.w));
bool is_selected = (flag & DRW_BASE_SELECTED) != 0;
bool is_from_dupli = (flag & DRW_BASE_FROM_DUPLI) != 0;
bool is_from_set = (flag & DRW_BASE_FROM_SET) != 0;
bool is_active = (flag & DRW_BASE_ACTIVE) != 0;
if (is_from_set) {
rim_col = colorDupli.rgb;
wire_col = colorDupli.rgb;
}
else if (is_from_dupli) {
if (is_selected) {
if (isTransform) {
rim_col = colorTransform.rgb;
}
else {
rim_col = colorDupliSelect.rgb;
}
}
else {
rim_col = colorDupli.rgb;
}
wire_col = colorDupli.rgb;
}
else if (is_selected && useColoring) {
if (isTransform) {
rim_col = colorTransform.rgb;
}
else if (is_active) {
rim_col = colorActive.rgb;
}
else {
rim_col = colorSelect.rgb;
}
wire_col = colorWire.rgb;
}
else {
rim_col = colorWire.rgb;
wire_col = colorBackground.rgb;
}
}
vec3 hsv_to_rgb(vec3 hsv)
{
vec3 nrgb = abs(hsv.x * 6.0 - vec3(3.0, 2.0, 4.0)) * vec3(1, -1, -1) + vec3(-1, 2, 2);
nrgb = clamp(nrgb, 0.0, 1.0);
return ((nrgb - 1.0) * hsv.y + 1.0) * hsv.z;
}
void wire_object_color_get(out vec3 rim_col, out vec3 wire_col)
{
int flag = int(abs(ObjectInfo.w));
bool is_selected = (flag & DRW_BASE_SELECTED) != 0;
if (isObjectColor) {
rim_col = wire_col = ObjectColor.rgb * 0.5;
}
else {
float hue = ObjectInfo.z;
vec3 hsv = vec3(hue, 0.75, 0.8);
rim_col = wire_col = hsv_to_rgb(hsv);
}
if (is_selected && useColoring) {
/* "Normalize" color. */
wire_col += 1e-4; /* Avoid division by 0. */
float brightness = max(wire_col.x, max(wire_col.y, wire_col.z));
wire_col *= 0.5 / brightness;
rim_col += 0.75;
}
else {
rim_col *= 0.5;
wire_col += 0.5;
}
}
void main()
{
vec3 wpos = point_object_to_world(pos);
gl_Position = point_world_to_ndc(wpos);
#if !(defined(SELECT_EDGES) || defined(USE_GEOM))
/* Convert to screen position [0..sizeVp]. */
edgePos = edgeStart = ((gl_Position.xy / gl_Position.w) * 0.5 + 0.5) * sizeViewport.xy;
#endif
edgeSharpness_g = get_edge_sharpness(wd);
vec3 rim_col, wire_col;
if (isObjectColor || isRandomColor) {
wire_object_color_get(rim_col, wire_col);
}
else {
wire_color_get(rim_col, wire_col);
}
vec3 wnor = normalize(normal_object_to_world(nor));
float facing = dot(wnor, ViewMatrixInverse[2].xyz);
facing = clamp(abs(facing), 0.0, 1.0);
vec3 final_front_col = mix(rim_col, wire_col, 0.4);
vec3 final_rim_col = mix(rim_col, wire_col, 0.1);
finalColor_g = mix(final_rim_col, final_front_col, facing);
#ifdef USE_WORLD_CLIP_PLANES
world_clip_planes_calc_clip_distance(wpos);
#endif
}
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