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debug utility for drawing in the 3d viewport (uncomment define to use), helpful for debugging modifiers/bmesh code, especially other peoples :)

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Campbell Barton
2012-11-16 07:56:47 +00:00
parent b67e52ae3a
commit 328dd3f033
1 changed files with 67 additions and 0 deletions
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67
source/blender/editors/space_view3d/view3d_draw.c
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@@ -95,6 +95,16 @@
#include "view3d_intern.h" /* own include */
/* handy utility for drawing shapes in the viewport for arbitrary code.
* could add lines and points too */
// #define DEBUG_DRAW
#ifdef DEBUG_DRAW
static void bl_debug_draw(void);
/* add these locally when using these functions for testing */
extern void bl_debug_draw_quad_clear(void);
extern void bl_debug_draw_quad_add(const float v0[3], const float v1[3], const float v2[3], const float v3[3]);
extern void bl_debug_draw_edge_add(const float v0[3], const float v1[3]);
#endif
static void star_stuff_init_func(void)
{
@@ -3207,6 +3217,9 @@ void view3d_main_area_draw(const bContext *C, ARegion *ar)
/* draw viewport using opengl */
if (v3d->drawtype != OB_RENDER || !view3d_main_area_do_render_draw(C) || draw_border) {
view3d_main_area_draw_objects(C, ar, &grid_unit);
#ifdef DEBUG_DRAW
bl_debug_draw();
#endif
ED_region_pixelspace(ar);
}
@@ -3219,3 +3232,57 @@ void view3d_main_area_draw(const bContext *C, ARegion *ar)
v3d->flag |= V3D_INVALID_BACKBUF;
}
#ifdef DEBUG_DRAW
/* debug drawing */
#define _DEBUG_DRAW_QUAD_TOT 1024
static float _bl_debug_draw_quads[_DEBUG_DRAW_QUAD_TOT][4][3];
static int _bl_debug_draw_quads_tot = 0;
void bl_debug_draw_quad_clear(void)
{
_bl_debug_draw_quads_tot = 0;
}
void bl_debug_draw_quad_add(const float v0[3], const float v1[3], const float v2[3], const float v3[3])
{
if (_bl_debug_draw_quads_tot >= _DEBUG_DRAW_QUAD_TOT) {
printf("%s: max quad count hit %d!", __func__, _bl_debug_draw_quads_tot);
}
else {
float *pt = &_bl_debug_draw_quads[_bl_debug_draw_quads_tot][0][0];
copy_v3_v3(pt, v0); pt += 3;
copy_v3_v3(pt, v1); pt += 3;
copy_v3_v3(pt, v2); pt += 3;
copy_v3_v3(pt, v3); pt += 3;
_bl_debug_draw_quads_tot++;
}
}
void bl_debug_draw_edge_add(const float v0[3], const float v1[3])
{
if (_bl_debug_draw_quads_tot >= _DEBUG_DRAW_QUAD_TOT) {
printf("%s: max edge count hit %d!", __func__, _bl_debug_draw_quads_tot);
}
else {
float *pt = &_bl_debug_draw_quads[_bl_debug_draw_quads_tot][0][0];
copy_v3_v3(pt, v0); pt += 3;
copy_v3_v3(pt, v1); pt += 3;
copy_v3_v3(pt, v0); pt += 3;
copy_v3_v3(pt, v1); pt += 3;
_bl_debug_draw_quads_tot++;
}
}
static void bl_debug_draw(void)
{
if (_bl_debug_draw_quads_tot) {
int i;
cpack(0x00FF0000);
glBegin(GL_LINE_LOOP);
for(i=0; i < _bl_debug_draw_quads_tot; i ++) {
glVertex3fv(_bl_debug_draw_quads[i][0]);
glVertex3fv(_bl_debug_draw_quads[i][1]);
glVertex3fv(_bl_debug_draw_quads[i][2]);
glVertex3fv(_bl_debug_draw_quads[i][3]);
}
glEnd();
}
}
#endif