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Vertex Paint: use view normal w/ 2D falloff

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When projecting to the view, cull faces pointing
away from the view normal.
This commit is contained in:
Campbell Barton
2017-10-06 19:10:33 +11:00
parent 8ef757df3d
commit 6c43490616
3 changed files with 36 additions and 7 deletions
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28
source/blender/editors/sculpt_paint/paint_vertex.c
View File

@@ -1521,6 +1521,8 @@ static void do_wpaint_brush_blur_task_cb_ex(
SculptBrushTest test;
SculptBrushTestFn sculpt_brush_test_sq_fn =
sculpt_brush_test_init_with_falloff_shape(ss, &test, data->brush->falloff_shape);
const float *sculpt_normal_frontface =
sculpt_brush_frontface_normal_from_falloff_shape(ss, data->brush->falloff_shape);
/* For each vertex */
PBVHVertexIter vd;
@@ -1555,7 +1557,7 @@ static void do_wpaint_brush_blur_task_cb_ex(
if (total_hit_loops != 0) {
float brush_strength = cache->bstrength;
const float angle_cos = (use_normal && vd.no) ?
dot_vf3vs3(ss->cache->sculpt_normal_symm, vd.no) : 1.0f;
dot_vf3vs3(sculpt_normal_frontface, vd.no) : 1.0f;
if (((brush->flag & BRUSH_FRONTFACE) == 0 ||
(angle_cos > 0.0f)) &&
((data->vp->flag & VP_FLAG_PROJECT_FLAT) ||
@@ -1614,6 +1616,8 @@ static void do_wpaint_brush_smear_task_cb_ex(
SculptBrushTest test;
SculptBrushTestFn sculpt_brush_test_sq_fn =
sculpt_brush_test_init_with_falloff_shape(ss, &test, data->brush->falloff_shape);
const float *sculpt_normal_frontface =
sculpt_brush_frontface_normal_from_falloff_shape(ss, data->brush->falloff_shape);
/* For each vertex */
PBVHVertexIter vd;
@@ -1631,7 +1635,7 @@ static void do_wpaint_brush_smear_task_cb_ex(
if (!(use_face_sel || use_vert_sel) || mv_curr->flag & SELECT) {
float brush_strength = cache->bstrength;
const float angle_cos = (use_normal && vd.no) ?
dot_vf3vs3(ss->cache->sculpt_normal_symm, vd.no) : 1.0f;
dot_vf3vs3(sculpt_normal_frontface, vd.no) : 1.0f;
if (((brush->flag & BRUSH_FRONTFACE) == 0 ||
(angle_cos > 0.0f)) &&
((data->vp->flag & VP_FLAG_PROJECT_FLAT) ||
@@ -1714,6 +1718,8 @@ static void do_wpaint_brush_draw_task_cb_ex(
SculptBrushTest test;
SculptBrushTestFn sculpt_brush_test_sq_fn =
sculpt_brush_test_init_with_falloff_shape(ss, &test, data->brush->falloff_shape);
const float *sculpt_normal_frontface =
sculpt_brush_frontface_normal_from_falloff_shape(ss, data->brush->falloff_shape);
/* For each vertex */
PBVHVertexIter vd;
@@ -1732,7 +1738,7 @@ static void do_wpaint_brush_draw_task_cb_ex(
if (!(use_face_sel || use_vert_sel) || v_flag & SELECT) {
float brush_strength = cache->bstrength;
const float angle_cos = (use_normal && vd.no) ?
dot_vf3vs3(ss->cache->sculpt_normal_symm, vd.no) : 1.0f;
dot_vf3vs3(sculpt_normal_frontface, vd.no) : 1.0f;
if (((brush->flag & BRUSH_FRONTFACE) == 0 ||
(angle_cos > 0.0f)) &&
((data->vp->flag & VP_FLAG_PROJECT_FLAT) ||
@@ -1779,6 +1785,8 @@ static void do_wpaint_brush_calc_average_weight_cb_ex(
SculptBrushTest test;
SculptBrushTestFn sculpt_brush_test_sq_fn =
sculpt_brush_test_init_with_falloff_shape(ss, &test, data->brush->falloff_shape);
const float *sculpt_normal_frontface =
sculpt_brush_frontface_normal_from_falloff_shape(ss, data->brush->falloff_shape);
/* For each vertex */
PBVHVertexIter vd;
@@ -1787,7 +1795,7 @@ static void do_wpaint_brush_calc_average_weight_cb_ex(
/* Test to see if the vertex coordinates are within the spherical brush region. */
if (sculpt_brush_test_sq_fn(&test, vd.co)) {
const float angle_cos = (use_normal && vd.no) ?
dot_vf3vs3(ss->cache->sculpt_normal_symm, vd.no) : 1.0f;
dot_vf3vs3(sculpt_normal_frontface, vd.no) : 1.0f;
if (angle_cos > 0.0 && BKE_brush_curve_strength(data->brush, sqrtf(test.dist), cache->radius) > 0.0) {
const int v_index = ccgdm ? data->me->mloop[vd.grid_indices[vd.g]].v : vd.vert_indices[vd.i];
// const float grid_alpha = ccgdm ? 1.0f / vd.gridsize : 1.0f;
@@ -2509,6 +2517,8 @@ static void do_vpaint_brush_draw_task_cb_ex(
SculptBrushTest test;
SculptBrushTestFn sculpt_brush_test_sq_fn =
sculpt_brush_test_init_with_falloff_shape(ss, &test, data->brush->falloff_shape);
const float *sculpt_normal_frontface =
sculpt_brush_frontface_normal_from_falloff_shape(ss, data->brush->falloff_shape);
/* For each vertex */
PBVHVertexIter vd;
@@ -2529,7 +2539,7 @@ static void do_vpaint_brush_draw_task_cb_ex(
* (ie splash prevention factor), and only paint front facing verts. */
float brush_strength = cache->bstrength;
const float angle_cos = (use_normal && vd.no) ?
dot_vf3vs3(ss->cache->sculpt_normal_symm, vd.no) : 1.0f;
dot_vf3vs3(sculpt_normal_frontface, vd.no) : 1.0f;
if (((brush->flag & BRUSH_FRONTFACE) == 0 ||
(angle_cos > 0.0f)) &&
((data->vp->flag & VP_FLAG_PROJECT_FLAT) ||
@@ -2598,6 +2608,8 @@ static void do_vpaint_brush_blur_task_cb_ex(
SculptBrushTest test;
SculptBrushTestFn sculpt_brush_test_sq_fn =
sculpt_brush_test_init_with_falloff_shape(ss, &test, data->brush->falloff_shape);
const float *sculpt_normal_frontface =
sculpt_brush_frontface_normal_from_falloff_shape(ss, data->brush->falloff_shape);
/* For each vertex */
PBVHVertexIter vd;
@@ -2615,7 +2627,7 @@ static void do_vpaint_brush_blur_task_cb_ex(
if (!use_vert_sel || mv->flag & SELECT) {
float brush_strength = cache->bstrength;
const float angle_cos = (use_normal && vd.no) ?
dot_vf3vs3(ss->cache->sculpt_normal_symm, vd.no) : 1.0f;
dot_vf3vs3(sculpt_normal_frontface, vd.no) : 1.0f;
if (((brush->flag & BRUSH_FRONTFACE) == 0 ||
(angle_cos > 0.0f)) &&
((data->vp->flag & VP_FLAG_PROJECT_FLAT) ||
@@ -2711,6 +2723,8 @@ static void do_vpaint_brush_smear_task_cb_ex(
SculptBrushTest test;
SculptBrushTestFn sculpt_brush_test_sq_fn =
sculpt_brush_test_init_with_falloff_shape(ss, &test, data->brush->falloff_shape);
const float *sculpt_normal_frontface =
sculpt_brush_frontface_normal_from_falloff_shape(ss, data->brush->falloff_shape);
/* For each vertex */
PBVHVertexIter vd;
@@ -2730,7 +2744,7 @@ static void do_vpaint_brush_smear_task_cb_ex(
* (ie splash prevention factor), and only paint front facing verts. */
float brush_strength = cache->bstrength;
const float angle_cos = (use_normal && vd.no) ?
dot_vf3vs3(ss->cache->sculpt_normal_symm, vd.no) : 1.0f;
dot_vf3vs3(sculpt_normal_frontface, vd.no) : 1.0f;
if (((brush->flag & BRUSH_FRONTFACE) == 0 ||
(angle_cos > 0.0f)) &&
((data->vp->flag & VP_FLAG_PROJECT_FLAT) ||

13
source/blender/editors/sculpt_paint/sculpt.c
View File

@@ -651,6 +651,19 @@ SculptBrushTestFn sculpt_brush_test_init_with_falloff_shape(
return sculpt_brush_test_sq_fn;
}
const float *sculpt_brush_frontface_normal_from_falloff_shape(
SculptSession *ss, char falloff_shape)
{
if (falloff_shape == PAINT_FALLOFF_SHAPE_SPHERE) {
return ss->cache->sculpt_normal_symm;
}
else {
/* PAINT_FALLOFF_SHAPE_TUBE */
return ss->cache->view_normal;
}
}
static float frontface(const Brush *br, const float sculpt_normal[3],
const short no[3], const float fno[3])
{

2
source/blender/editors/sculpt_paint/sculpt_intern.h
View File

@@ -219,6 +219,8 @@ bool sculpt_search_circle_cb(PBVHNode *node, void *data_v);
SculptBrushTestFn sculpt_brush_test_init_with_falloff_shape(
SculptSession *ss, SculptBrushTest *test, char falloff_shape);
const float *sculpt_brush_frontface_normal_from_falloff_shape(
SculptSession *ss, char falloff_shape);
float tex_strength(
struct SculptSession *ss, const struct Brush *br,