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last commit broke projection painting in perspective mode.

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Campbell Barton 2008-11-03 11:06:22 +00:00
parent 2ff6d5c06e
commit 8cecbf9cbd
1 changed files with 30 additions and 19 deletions
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49
source/blender/src/imagepaint.c
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@ -178,12 +178,13 @@ typedef struct ProjectPaintState {
float (*projectVertScreenCos)[3]; /* verts projected into floating point screen space */
/* options for projection painting */
short projectOcclude; /* Use raytraced occlusion? - ortherwise will paint right through to the back*/
short projectBackfaceCull; /* ignore faces with normals pointing away, skips a lot of raycasts if your normals are correctly flipped */
short projectIsIsOcclude; /* Use raytraced occlusion? - ortherwise will paint right through to the back*/
short projectIsBackfaceCull; /* ignore faces with normals pointing away, skips a lot of raycasts if your normals are correctly flipped */
short projectIsOrtho;
float projectMat[4][4]; /* Projection matrix, use for getting screen coords */
float viewMat[4][4];
float viewDir[3]; /* View vector, use for projectBackfaceCull and for ray casting with an ortho viewport */
float viewDir[3]; /* View vector, use for projectIsBackfaceCull and for ray casting with an ortho viewport */
float viewMin2D[2]; /* 2D bounds for mesh verts on the screen's plane (screenspace) */
float viewMax2D[2];
@ -607,6 +608,8 @@ static void project_paint_face_init(ProjectPaintState *ps, int face_index, ImBuf
float pixelScreenCo[3]; /* for testing occlusion we need the depth too, but not for saving into ProjectPixel */
int bucket_index;
//float pxWorldCo[3];
INIT_MINMAX2(min_uv, max_uv);
@ -652,21 +655,24 @@ static void project_paint_face_init(ProjectPaintState *ps, int face_index, ImBuf
for (x = xmini; x < xmaxi; x++) {
uv[0] = (((float)x)+0.5) / (float)ibuf->x;
/* Get the world coord for the point in uv space */
w1 = AreaF2Dfl(tf->uv[sc->v[1]], tf->uv[sc->v[2]], uv);
w2 = AreaF2Dfl(tf->uv[sc->v[2]], tf->uv[sc->v[0]], uv);
w3 = AreaF2Dfl(tf->uv[sc->v[0]], tf->uv[sc->v[1]], uv);
wtot = w1 + w2 + w3;
/* Get the world coord for the point in uv space */
if (ps->projectIsOrtho) {
w1 = AreaF2Dfl(tf->uv[sc->v[1]], tf->uv[sc->v[2]], uv);
w2 = AreaF2Dfl(tf->uv[sc->v[2]], tf->uv[sc->v[0]], uv);
w3 = AreaF2Dfl(tf->uv[sc->v[0]], tf->uv[sc->v[1]], uv);
} else { /* prespective mode needs an interpolation */
w1 = AreaF2Dfl(tf->uv[sc->v[1]], tf->uv[sc->v[2]], uv) / v1co[2];
w2 = AreaF2Dfl(tf->uv[sc->v[2]], tf->uv[sc->v[0]], uv) / v2co[2];
w3 = AreaF2Dfl(tf->uv[sc->v[0]], tf->uv[sc->v[1]], uv) / v3co[2];
}
wtot = w1 + w2 + w3;
w1 /= wtot; w2 /= wtot; w3 /= wtot;
i=2;
do {
pixelScreenCo[i] = v1co[i]*w1 + v2co[i]*w2 + v3co[i]*w3;
/* incase we want the world pixel coords */
/* pixelWorldCo[i] = ps->dm_mvert[ (*(&mf->v1 + sc->v[0])) ].co[i][0] * w1 ....; */
} while (i--);
/* Done building the world coord for this UV */
pixelScreenCo[0] = v1co[0]*w1 + v2co[0]*w2 + v3co[0]*w3;
pixelScreenCo[1] = v1co[1]*w1 + v2co[1]*w2 + v3co[1]*w3;
pixelScreenCo[2] = v1co[2]*w1 + v2co[2]*w2 + v3co[2]*w3;
bucket_index = project_paint_BucketOffset(ps, pixelScreenCo);
@ -674,7 +680,7 @@ static void project_paint_face_init(ProjectPaintState *ps, int face_index, ImBuf
* Then this can be used to index the bucket array */
/* Is this UV visible from the view? - raytrace */
if (ps->projectOcclude==0 || !project_bucket_point_occluded(ps, bucket_index, face_index, pixelScreenCo)) {
if (ps->projectIsOcclude==0 || !project_bucket_point_occluded(ps, bucket_index, face_index, pixelScreenCo)) {
/* done with view3d_project_float inline */
projPixel = (ProjectPixel *)BLI_memarena_alloc( ps->projectArena, sizeof(ProjectPixel) );
@ -938,6 +944,11 @@ static void project_paint_begin( ImagePaintState *s, ProjectPaintState *ps )
ps->projectVertScreenCos = BLI_memarena_alloc( ps->projectArena, sizeof(float) * ps->dm_totvert * 3);
projScreenCo = ps->projectVertScreenCos;
/* TODO - check cameras mode too */
if (G.vd->persp == V3D_ORTHO) {
ps->projectIsOrtho = 1;
}
INIT_MINMAX2(ps->viewMin2D, ps->viewMax2D);
for(a=0; a < ps->dm_totvert; a++, projScreenCo++) {
@ -965,7 +976,7 @@ static void project_paint_begin( ImagePaintState *s, ProjectPaintState *ps )
for( a = 0, tf = ps->dm_mtface, mf = ps->dm_mface; a < ps->dm_totface; mf++, tf++, a++ ) {
if (tf->tpage && ((G.f & G_FACESELECT)==0 || mf->flag & ME_FACE_SEL)) {
if (ps->projectBackfaceCull) {
if (ps->projectIsBackfaceCull) {
/* TODO - we dont really need the normal, just the direction, save a sqrt? */
if (mf->v4) CalcNormFloat4(ps->dm_mvert[mf->v1].co, ps->dm_mvert[mf->v2].co, ps->dm_mvert[mf->v3].co, ps->dm_mvert[mf->v4].co, f_no);
else CalcNormFloat(ps->dm_mvert[mf->v1].co, ps->dm_mvert[mf->v2].co, ps->dm_mvert[mf->v3].co, f_no);
@ -1809,8 +1820,8 @@ void imagepaint_paint(short mousebutton, short texpaint)
/* setup projection painting data */
memset(&ps, 0, sizeof(ps));
ps.projectBackfaceCull = 1;
ps.projectOcclude = 1;
ps.projectIsBackfaceCull = 1;
ps.projectIsOcclude = 1;
project_paint_begin(&s, &ps);