DeformMod: Performance by reusing buffers
The Deform modifiers was reallocating buffers that only fit the vertices of the inner loop. This patch first counts the maximum needed buffer and allocates one. When using the daily dweebs animation file the playback performance went from 0.66 fps to 0.93 fps. Reviewed By: sybren Differential Revision: https://developer.blender.org/D7132
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@ -1121,20 +1121,25 @@ static void deformVert(void *__restrict userdata,
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{
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const SDefDeformData *const data = (SDefDeformData *)userdata;
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const SDefBind *sdbind = data->bind_verts[index].binds;
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const int num_binds = data->bind_verts[index].numbinds;
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float *const vertexCos = data->vertexCos[index];
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float norm[3], temp[3];
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zero_v3(vertexCos);
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for (int j = 0; j < data->bind_verts[index].numbinds; j++, sdbind++) {
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/* Mode-generic operations (allocate poly coordinates) */
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float(*coords)[3] = MEM_malloc_arrayN(sdbind->numverts, sizeof(*coords), "SDefDoPolyCoords");
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/* Allocate a `coords_buffer` that fits all the temp-data. */
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int max_verts = 0;
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for (int j = 0; j < num_binds; j++) {
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max_verts = MAX2(max_verts, sdbind[j].numverts);
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}
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float(*coords_buffer)[3] = MEM_malloc_arrayN(max_verts, sizeof(*coords_buffer), __func__);
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for (int j = 0; j < num_binds; j++, sdbind++) {
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for (int k = 0; k < sdbind->numverts; k++) {
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copy_v3_v3(coords[k], data->targetCos[sdbind->vert_inds[k]]);
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copy_v3_v3(coords_buffer[k], data->targetCos[sdbind->vert_inds[k]]);
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}
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normal_poly_v3(norm, coords, sdbind->numverts);
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normal_poly_v3(norm, coords_buffer, sdbind->numverts);
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zero_v3(temp);
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/* ---------- looptri mode ---------- */
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@ -1147,14 +1152,14 @@ static void deformVert(void *__restrict userdata,
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/* ---------- ngon mode ---------- */
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if (sdbind->mode == MOD_SDEF_MODE_NGON) {
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for (int k = 0; k < sdbind->numverts; k++) {
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madd_v3_v3fl(temp, coords[k], sdbind->vert_weights[k]);
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madd_v3_v3fl(temp, coords_buffer[k], sdbind->vert_weights[k]);
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}
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}
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/* ---------- centroid mode ---------- */
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else if (sdbind->mode == MOD_SDEF_MODE_CENTROID) {
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float cent[3];
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mid_v3_v3_array(cent, coords, sdbind->numverts);
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mid_v3_v3_array(cent, coords_buffer, sdbind->numverts);
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madd_v3_v3fl(temp, data->targetCos[sdbind->vert_inds[0]], sdbind->vert_weights[0]);
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madd_v3_v3fl(temp, data->targetCos[sdbind->vert_inds[1]], sdbind->vert_weights[1]);
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@ -1162,13 +1167,12 @@ static void deformVert(void *__restrict userdata,
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}
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}
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MEM_freeN(coords);
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/* Apply normal offset (generic for all modes) */
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madd_v3_v3fl(temp, norm, sdbind->normal_dist);
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madd_v3_v3fl(vertexCos, temp, sdbind->influence);
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}
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MEM_freeN(coords_buffer);
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}
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static void surfacedeformModifier_do(ModifierData *md,
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