Commit: 4e3f76e06b6654d4951a54804eaa808b040ef942
Author: Antony Riakiotakis
Date: Wed Aug 27 15:07:57 2014 +0200
Branches: master
https://developer.blender.org/rB4e3f76e06b6654d4951a54804eaa808b040ef942
Fix T41406:
Disallow kernels bigger than 2x2 for blur/sharpen in projective painting
due to performance considerations.
===================================================================
M release/scripts/startup/bl_ui/properties_paint_common.py
M source/blender/editors/sculpt_paint/paint_image.c
M source/blender/editors/sculpt_paint/paint_image_2d.c
M source/blender/editors/sculpt_paint/paint_image_proj.c
M source/blender/editors/sculpt_paint/paint_intern.h
===================================================================
diff --git a/release/scripts/startup/bl_ui/properties_paint_common.py
b/release/scripts/startup/bl_ui/properties_paint_common.py
index 6504701..046e54d 100644
--- a/release/scripts/startup/bl_ui/properties_paint_common.py
+++ b/release/scripts/startup/bl_ui/properties_paint_common.py
@@ -129,7 +129,8 @@ def brush_texpaint_common(panel, context, layout, brush,
settings, projpaint=Fal
col.row().prop(brush, "direction", expand=True)
col.separator()
col.prop(brush, "sharp_threshold")
- col.prop(brush, "blur_kernel_radius")
+ if not projpaint:
+ col.prop(brush, "blur_kernel_radius")
col.separator()
col.prop(brush, "blur_mode")
elif brush.image_tool == 'MASK':
diff --git a/source/blender/editors/sculpt_paint/paint_image.c
b/source/blender/editors/sculpt_paint/paint_image.c
index e9e1615..0ec813c 100644
--- a/source/blender/editors/sculpt_paint/paint_image.c
+++ b/source/blender/editors/sculpt_paint/paint_image.c
@@ -510,19 +510,32 @@ void imapaint_image_update(SpaceImage *sima, Image
*image, ImBuf *ibuf, short te
}
}
-/* paint blur kernels */
-BlurKernel *paint_new_blur_kernel(Brush *br)
+/* paint blur kernels. Projective painting enforces use of a 2x2 kernel due to
lagging */
+BlurKernel *paint_new_blur_kernel(Brush *br, bool proj)
{
int i, j;
BlurKernel *kernel = MEM_mallocN(sizeof(BlurKernel), "blur kernel");
- int pixel_len = br->blur_kernel_radius;
+ float radius;
+ int side;
BlurKernelType type = br->blur_mode;
- kernel->side = pixel_len * 2 + 1;
- kernel->side_squared = kernel->side * kernel->side;
- kernel->wdata = MEM_mallocN(sizeof(float) * kernel->side_squared, "blur
kernel data");
- kernel->pixel_len = pixel_len;
-
+ if (proj) {
+ radius = 0.5f;
+
+ side = kernel->side = 2;
+ kernel->side_squared = kernel->side * kernel->side;
+ kernel->wdata = MEM_mallocN(sizeof(float) *
kernel->side_squared, "blur kernel data");
+ kernel->pixel_len = radius;
+ }
+ else {
+ radius = br->blur_kernel_radius;
+
+ side = kernel->side = radius * 2 + 1;
+ kernel->side_squared = kernel->side * kernel->side;
+ kernel->wdata = MEM_mallocN(sizeof(float) *
kernel->side_squared, "blur kernel data");
+ kernel->pixel_len = br->blur_kernel_radius;
+ }
+
switch (type) {
case KERNEL_BOX:
for (i = 0; i < kernel->side_squared; i++)
@@ -531,26 +544,19 @@ BlurKernel *paint_new_blur_kernel(Brush *br)
case KERNEL_GAUSSIAN:
{
- float standard_dev = pixel_len / 3.0; /* at standard
deviation of 3.0 kernel is at about zero */
- int i_term = pixel_len + 1;
-
+ /* at standard deviation of 3.0 kernel is at about zero
*/
+ float standard_dev = radius / 3.0f;
+
/* make the necessary adjustment to the value for use
in the normal distribution formula */
standard_dev = standard_dev * standard_dev * 2;
- kernel->wdata[pixel_len + pixel_len * kernel->side] =
1.0;
- /* fill in all four quadrants at once */
- for (i = 0; i < i_term; i++) {
- for (j = 0; j < pixel_len; j++) {
- float idist = pixel_len - i;
- float jdist = pixel_len - j;
-
+ for (i = 0; i < side; i++) {
+ for (j = 0; j < side; j++) {
+ float idist = radius - i;
+ float jdist = radius - j;
float value = exp((idist * idist +
jdist * jdist) / standard_dev);
-
- kernel->wdata[i + j * kernel->side] =
- kernel->wdata[(kernel->side - j - 1) +
i * kernel->side] =
- kernel->wdata[(kernel->side - i - 1) +
(kernel->side - j - 1) * kernel->side] =
- kernel->wdata[j + (kernel->side - i -
1) * kernel->side] =
- value;
+
+ kernel->wdata[i + j * side] = value;
}
}
diff --git a/source/blender/editors/sculpt_paint/paint_image_2d.c
b/source/blender/editors/sculpt_paint/paint_image_2d.c
index 1cba8a2..5607dce 100644
--- a/source/blender/editors/sculpt_paint/paint_image_2d.c
+++ b/source/blender/editors/sculpt_paint/paint_image_2d.c
@@ -1249,7 +1249,7 @@ void *paint_2d_new_stroke(bContext *C, wmOperator *op,
int mode)
}
if (brush->imagepaint_tool == PAINT_TOOL_SOFTEN) {
- s->blurkernel = paint_new_blur_kernel(brush);
+ s->blurkernel = paint_new_blur_kernel(brush, false);
}
paint_brush_init_tex(s->brush);
diff --git a/source/blender/editors/sculpt_paint/paint_image_proj.c
b/source/blender/editors/sculpt_paint/paint_image_proj.c
index 4b381c9..3cf2fa4 100644
--- a/source/blender/editors/sculpt_paint/paint_image_proj.c
+++ b/source/blender/editors/sculpt_paint/paint_image_proj.c
@@ -3763,7 +3763,7 @@ static void do_projectpaint_soften_f(ProjPaintState *ps,
ProjPixel *projPixel, f
for (yk = 0; yk < kernel->side; yk++) {
for (xk = 0; xk < kernel->side; xk++) {
float rgba_tmp[4];
- float co_ofs[2] = {xk - kernel->pixel_len, yk -
kernel->pixel_len};
+ float co_ofs[2] = {2.0f * xk - 1.0f, 2.0f * yk - 1.0f};
add_v2_v2(co_ofs, projPixel->projCoSS);
@@ -3819,7 +3819,7 @@ static void do_projectpaint_soften(ProjPaintState *ps,
ProjPixel *projPixel, flo
for (yk = 0; yk < kernel->side; yk++) {
for (xk = 0; xk < kernel->side; xk++) {
float rgba_tmp[4];
- float co_ofs[2] = {xk - kernel->pixel_len, yk -
kernel->pixel_len};
+ float co_ofs[2] = {2.0f * xk - 1.0f, 2.0f * yk - 1.0f};
add_v2_v2(co_ofs, projPixel->projCoSS);
@@ -4453,7 +4453,7 @@ static void project_state_init(bContext *C, Object *ob,
ProjPaintState *ps, int
ps->mode = ((ps->mode == BRUSH_STROKE_INVERT) ^
((brush->flag & BRUSH_DIR_IN) != 0) ?
BRUSH_STROKE_INVERT : BRUSH_STROKE_NORMAL);
- ps->blurkernel = paint_new_blur_kernel(brush);
+ ps->blurkernel = paint_new_blur_kernel(brush, true);
}
/* disable for 3d mapping also because painting on mirrored
mesh can create "stripes" */
diff --git a/source/blender/editors/sculpt_paint/paint_intern.h
b/source/blender/editors/sculpt_paint/paint_intern.h
index d0cd59d..36f1667 100644
--- a/source/blender/editors/sculpt_paint/paint_intern.h
+++ b/source/blender/editors/sculpt_paint/paint_intern.h
@@ -293,7 +293,7 @@ typedef struct {
enum BlurKernelType;
/* can be extended to other blur kernels later */
-BlurKernel *paint_new_blur_kernel(struct Brush *br);
+BlurKernel *paint_new_blur_kernel(struct Brush *br, bool proj);
void paint_delete_blur_kernel(BlurKernel *);
/* paint curve defines */
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