Page MenuHome
Differential D7574 Diff 24231 intern/cycles/kernel/svm/svm_voronoi.h

Changeset View

Standalone View

View Options

intern/cycles/kernel/svm/svm_voronoi.h

Show First 20 Lines • Show All 678 Lines • ▼ Show 20 Linesccl_device void voronoi_f1_4d(float4 coord,
float4 cellPosition = floor(coord); float4 cellPosition = floor(coord);
float4 localPosition = coord - cellPosition; float4 localPosition = coord - cellPosition;
float minDistance = 8.0f; float minDistance = 8.0f;
float4 targetOffset = make_float4(0.0f, 0.0f, 0.0f, 0.0f); float4 targetOffset = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
float4 targetPosition = make_float4(0.0f, 0.0f, 0.0f, 0.0f); float4 targetPosition = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
for (int u = -1; u <= 1; u++) { for (int u = -1; u <= 1; u++) {
for (int k = -1; k <= 1; k++) { for (int k = -1; k <= 1; k++) {
for (int j = -1; j <= 1; j++) { ccl_loop_no_unroll for (int j = -1; j <= 1; j++)
{
for (int i = -1; i <= 1; i++) { for (int i = -1; i <= 1; i++) {
float4 cellOffset = make_float4(i, j, k, u); float4 cellOffset = make_float4(i, j, k, u);
float4 pointPosition = cellOffset + float4 pointPosition = cellOffset +
hash_float4_to_float4(cellPosition + cellOffset) * randomness; hash_float4_to_float4(cellPosition + cellOffset) * randomness;
float distanceToPoint = voronoi_distance_4d( float distanceToPoint = voronoi_distance_4d(
pointPosition, localPosition, metric, exponent); pointPosition, localPosition, metric, exponent);
if (distanceToPoint < minDistance) { if (distanceToPoint < minDistance) {
targetOffset = cellOffset; targetOffset = cellOffset;
Show All 21 Linesccl_device void voronoi_smooth_f1_4d(float4 coord,
float4 cellPosition = floor(coord); float4 cellPosition = floor(coord);
float4 localPosition = coord - cellPosition; float4 localPosition = coord - cellPosition;
float smoothDistance = 8.0f; float smoothDistance = 8.0f;
float3 smoothColor = make_float3(0.0f, 0.0f, 0.0f); float3 smoothColor = make_float3(0.0f, 0.0f, 0.0f);
float4 smoothPosition = make_float4(0.0f, 0.0f, 0.0f, 0.0f); float4 smoothPosition = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
for (int u = -2; u <= 2; u++) { for (int u = -2; u <= 2; u++) {
for (int k = -2; k <= 2; k++) { for (int k = -2; k <= 2; k++) {
for (int j = -2; j <= 2; j++) { ccl_loop_no_unroll for (int j = -2; j <= 2; j++)
{
for (int i = -2; i <= 2; i++) { for (int i = -2; i <= 2; i++) {
float4 cellOffset = make_float4(i, j, k, u); float4 cellOffset = make_float4(i, j, k, u);
float4 pointPosition = cellOffset + float4 pointPosition = cellOffset +
hash_float4_to_float4(cellPosition + cellOffset) * randomness; hash_float4_to_float4(cellPosition + cellOffset) * randomness;
float distanceToPoint = voronoi_distance_4d( float distanceToPoint = voronoi_distance_4d(
pointPosition, localPosition, metric, exponent); pointPosition, localPosition, metric, exponent);
float h = smoothstep( float h = smoothstep(
0.0f, 1.0f, 0.5f + 0.5f * (smoothDistance - distanceToPoint) / smoothness); 0.0f, 1.0f, 0.5f + 0.5f * (smoothDistance - distanceToPoint) / smoothness);
Show All 26 Linesccl_device void voronoi_f2_4d(float4 coord,
float distanceF1 = 8.0f; float distanceF1 = 8.0f;
float distanceF2 = 8.0f; float distanceF2 = 8.0f;
float4 offsetF1 = make_float4(0.0f, 0.0f, 0.0f, 0.0f); float4 offsetF1 = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
float4 positionF1 = make_float4(0.0f, 0.0f, 0.0f, 0.0f); float4 positionF1 = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
float4 offsetF2 = make_float4(0.0f, 0.0f, 0.0f, 0.0f); float4 offsetF2 = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
float4 positionF2 = make_float4(0.0f, 0.0f, 0.0f, 0.0f); float4 positionF2 = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
for (int u = -1; u <= 1; u++) { for (int u = -1; u <= 1; u++) {
for (int k = -1; k <= 1; k++) { for (int k = -1; k <= 1; k++) {
for (int j = -1; j <= 1; j++) { ccl_loop_no_unroll for (int j = -1; j <= 1; j++)
{
for (int i = -1; i <= 1; i++) { for (int i = -1; i <= 1; i++) {
float4 cellOffset = make_float4(i, j, k, u); float4 cellOffset = make_float4(i, j, k, u);
float4 pointPosition = cellOffset + float4 pointPosition = cellOffset +
hash_float4_to_float4(cellPosition + cellOffset) * randomness; hash_float4_to_float4(cellPosition + cellOffset) * randomness;
float distanceToPoint = voronoi_distance_4d( float distanceToPoint = voronoi_distance_4d(
pointPosition, localPosition, metric, exponent); pointPosition, localPosition, metric, exponent);
if (distanceToPoint < distanceF1) { if (distanceToPoint < distanceF1) {
distanceF2 = distanceF1; distanceF2 = distanceF1;
Show All 21 Lines
{ {
float4 cellPosition = floor(coord); float4 cellPosition = floor(coord);
float4 localPosition = coord - cellPosition; float4 localPosition = coord - cellPosition;
float4 vectorToClosest = make_float4(0.0f, 0.0f, 0.0f, 0.0f); float4 vectorToClosest = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
float minDistance = 8.0f; float minDistance = 8.0f;
for (int u = -1; u <= 1; u++) { for (int u = -1; u <= 1; u++) {
for (int k = -1; k <= 1; k++) { for (int k = -1; k <= 1; k++) {
for (int j = -1; j <= 1; j++) { ccl_loop_no_unroll for (int j = -1; j <= 1; j++)
{
for (int i = -1; i <= 1; i++) { for (int i = -1; i <= 1; i++) {
float4 cellOffset = make_float4(i, j, k, u); float4 cellOffset = make_float4(i, j, k, u);
float4 vectorToPoint = cellOffset + float4 vectorToPoint = cellOffset +
hash_float4_to_float4(cellPosition + cellOffset) * randomness - hash_float4_to_float4(cellPosition + cellOffset) * randomness -
localPosition; localPosition;
float distanceToPoint = dot(vectorToPoint, vectorToPoint); float distanceToPoint = dot(vectorToPoint, vectorToPoint);
if (distanceToPoint < minDistance) { if (distanceToPoint < minDistance) {
minDistance = distanceToPoint; minDistance = distanceToPoint;
vectorToClosest = vectorToPoint; vectorToClosest = vectorToPoint;
} }
} }
} }
} }
} }
minDistance = 8.0f; minDistance = 8.0f;
for (int u = -1; u <= 1; u++) { for (int u = -1; u <= 1; u++) {
for (int k = -1; k <= 1; k++) { for (int k = -1; k <= 1; k++) {
for (int j = -1; j <= 1; j++) { ccl_loop_no_unroll for (int j = -1; j <= 1; j++)
{
for (int i = -1; i <= 1; i++) { for (int i = -1; i <= 1; i++) {
float4 cellOffset = make_float4(i, j, k, u); float4 cellOffset = make_float4(i, j, k, u);
float4 vectorToPoint = cellOffset + float4 vectorToPoint = cellOffset +
hash_float4_to_float4(cellPosition + cellOffset) * randomness - hash_float4_to_float4(cellPosition + cellOffset) * randomness -
localPosition; localPosition;
float4 perpendicularToEdge = vectorToPoint - vectorToClosest; float4 perpendicularToEdge = vectorToPoint - vectorToClosest;
if (dot(perpendicularToEdge, perpendicularToEdge) > 0.0001f) { if (dot(perpendicularToEdge, perpendicularToEdge) > 0.0001f) {
float distanceToEdge = dot((vectorToClosest + vectorToPoint) / 2.0f, float distanceToEdge = dot((vectorToClosest + vectorToPoint) / 2.0f,
Show All 12 Linesccl_device void voronoi_n_sphere_radius_4d(float4 coord, float randomness, float *outRadius)
float4 cellPosition = floor(coord); float4 cellPosition = floor(coord);
float4 localPosition = coord - cellPosition; float4 localPosition = coord - cellPosition;
float4 closestPoint = make_float4(0.0f, 0.0f, 0.0f, 0.0f); float4 closestPoint = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
float4 closestPointOffset = make_float4(0.0f, 0.0f, 0.0f, 0.0f); float4 closestPointOffset = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
float minDistance = 8.0f; float minDistance = 8.0f;
for (int u = -1; u <= 1; u++) { for (int u = -1; u <= 1; u++) {
for (int k = -1; k <= 1; k++) { for (int k = -1; k <= 1; k++) {
for (int j = -1; j <= 1; j++) { ccl_loop_no_unroll for (int j = -1; j <= 1; j++)
{
for (int i = -1; i <= 1; i++) { for (int i = -1; i <= 1; i++) {
float4 cellOffset = make_float4(i, j, k, u); float4 cellOffset = make_float4(i, j, k, u);
float4 pointPosition = cellOffset + float4 pointPosition = cellOffset +
hash_float4_to_float4(cellPosition + cellOffset) * randomness; hash_float4_to_float4(cellPosition + cellOffset) * randomness;
float distanceToPoint = distance(pointPosition, localPosition); float distanceToPoint = distance(pointPosition, localPosition);
if (distanceToPoint < minDistance) { if (distanceToPoint < minDistance) {
minDistance = distanceToPoint; minDistance = distanceToPoint;
closestPoint = pointPosition; closestPoint = pointPosition;
closestPointOffset = cellOffset; closestPointOffset = cellOffset;
} }
} }
} }
} }
} }
minDistance = 8.0f; minDistance = 8.0f;
float4 closestPointToClosestPoint = make_float4(0.0f, 0.0f, 0.0f, 0.0f); float4 closestPointToClosestPoint = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
for (int u = -1; u <= 1; u++) { for (int u = -1; u <= 1; u++) {
for (int k = -1; k <= 1; k++) { for (int k = -1; k <= 1; k++) {
for (int j = -1; j <= 1; j++) { ccl_loop_no_unroll for (int j = -1; j <= 1; j++)
{
for (int i = -1; i <= 1; i++) { for (int i = -1; i <= 1; i++) {
if (i == 0 && j == 0 && k == 0 && u == 0) { if (i == 0 && j == 0 && k == 0 && u == 0) {
continue; continue;
} }
float4 cellOffset = make_float4(i, j, k, u) + closestPointOffset; float4 cellOffset = make_float4(i, j, k, u) + closestPointOffset;
float4 pointPosition = cellOffset + float4 pointPosition = cellOffset +
hash_float4_to_float4(cellPosition + cellOffset) * randomness; hash_float4_to_float4(cellPosition + cellOffset) * randomness;
float distanceToPoint = distance(closestPoint, pointPosition); float distanceToPoint = distance(closestPoint, pointPosition);
▲ Show 20 Lines • Show All 250 Lines • Show Last 20 Lines