mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
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b7a763853c
* CATMARK_RESTRICTED_VERT_VERTEX_A handles k_Crease and k_Corner rules * CATMARK_RESTRICTED_VERT_VERTEX_B1 handles regular k_Smooth and k_Dart rules * CATMARK_RESTRICTED_VERT_VERTEX_B2 handles irregular k_Smooth and k_Dart rules
591 lines
20 KiB
Common Lisp
591 lines
20 KiB
Common Lisp
//
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// Copyright 2013 Pixar
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//
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// Licensed under the Apache License, Version 2.0 (the "Apache License")
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// with the following modification; you may not use this file except in
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// compliance with the Apache License and the following modification to it:
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// Section 6. Trademarks. is deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the trade
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// names, trademarks, service marks, or product names of the Licensor
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// and its affiliates, except as required to comply with Section 4(c) of
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// the License and to reproduce the content of the NOTICE file.
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//
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// You may obtain a copy of the Apache License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the Apache License with the above modification is
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// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the Apache License for the specific
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// language governing permissions and limitations under the Apache License.
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//
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#ifndef M_PI
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#define M_PI 3.14159265358979323846 // fix for OSX 10.8 (M_PI is in the Khronos standard...)
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#endif
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struct Vertex
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{
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float v[VERTEX_STRIDE];
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};
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struct Varying
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{
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float v[VARYING_STRIDE];
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};
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static void clearVertex(struct Vertex *vertex) {
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for (int i = 0; i < NUM_VERTEX_ELEMENTS; i++) {
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vertex->v[i] = 0;
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}
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}
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static void clearVarying(struct Varying *varying) {
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for (int i = 0; i < NUM_VARYING_ELEMENTS; i++) {
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varying->v[i] = 0;
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}
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}
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static void addWithWeight(struct Vertex *dst,
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__global float *srcOrigin,
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int index, float weight) {
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__global float *src = srcOrigin + index * VERTEX_STRIDE;
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for (int i = 0; i < NUM_VERTEX_ELEMENTS; ++i) {
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dst->v[i] += src[i] * weight;
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}
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}
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static void addVaryingWithWeight(struct Varying *dst,
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__global float *srcOrigin,
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int index, float weight) {
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__global float *src = srcOrigin + index * VARYING_STRIDE;
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for (int i = 0; i < NUM_VARYING_ELEMENTS; ++i) {
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dst->v[i] += src[i] * weight;
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}
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}
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static void writeVertex(__global float *dstOrigin,
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int index,
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struct Vertex *src) {
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__global float *dst = dstOrigin + index * VERTEX_STRIDE;
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for (int i = 0; i < NUM_VERTEX_ELEMENTS; ++i) {
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dst[i] = src->v[i];
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}
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}
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static void writeVarying(__global float *dstOrigin,
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int index,
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struct Varying *src) {
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__global float *dst = dstOrigin + index * VARYING_STRIDE;
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for (int i = 0; i < NUM_VARYING_ELEMENTS; ++i) {
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dst[i] = src->v[i];
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}
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}
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__kernel void computeBilinearEdge(__global float *vertex,
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__global float *varying,
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__global int *E_IT,
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int vertexOffset, int varyingOffset,
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int offset, int tableOffset,
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int start, int end) {
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int i = start + get_global_id(0) + tableOffset;
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int vid = start + get_global_id(0) + offset;
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int eidx0 = E_IT[2*i+0];
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int eidx1 = E_IT[2*i+1];
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vertex += vertexOffset;
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varying += (varying ? varyingOffset :0);
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struct Vertex dst;
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struct Varying dstVarying;
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clearVertex(&dst);
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clearVarying(&dstVarying);
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addWithWeight(&dst, vertex, eidx0, 0.5f);
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addWithWeight(&dst, vertex, eidx1, 0.5f);
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writeVertex(vertex, vid, &dst);
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if (varying) {
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addVaryingWithWeight(&dstVarying, varying, eidx0, 0.5f);
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addVaryingWithWeight(&dstVarying, varying, eidx1, 0.5f);
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writeVarying(varying, vid, &dstVarying);
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}
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}
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__kernel void computeBilinearVertex(__global float *vertex,
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__global float *varying,
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__global int *V_ITa,
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int vertexOffset, int varyingOffset,
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int offset, int tableOffset,
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int start, int end) {
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int i = start + get_global_id(0) + tableOffset;
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int vid = start + get_global_id(0) + offset;
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vertex += vertexOffset;
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varying += (varying ? varyingOffset :0);
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int p = V_ITa[i];
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struct Vertex dst;
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clearVertex(&dst);
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addWithWeight(&dst, vertex, p, 1.0f);
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writeVertex(vertex, vid, &dst);
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if (varying) {
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struct Varying dstVarying;
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clearVarying(&dstVarying);
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addVaryingWithWeight(&dstVarying, varying, p, 1.0f);
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writeVarying(varying, vid, &dstVarying);
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}
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}
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// ---------------------------------------------------------------------------
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__kernel void computeFace(__global float *vertex,
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__global float *varying,
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__global int *F_IT,
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__global int *F_ITa,
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int vertexOffset, int varyingOffset,
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int offset, int tableOffset,
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int start, int end) {
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int i = start + get_global_id(0) + tableOffset;
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int vid = start + get_global_id(0) + offset;
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int h = F_ITa[2*i];
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int n = F_ITa[2*i+1];
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vertex += vertexOffset;
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varying += (varying ? varyingOffset :0);
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float weight = 1.0f/n;
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struct Vertex dst;
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struct Varying dstVarying;
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clearVertex(&dst);
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clearVarying(&dstVarying);
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for (int j=0; j<n; ++j) {
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int index = F_IT[h+j];
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addWithWeight(&dst, vertex, index, weight);
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if (varying) {
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addVaryingWithWeight(&dstVarying, varying, index, weight);
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}
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}
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writeVertex(vertex, vid, &dst);
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if (varying) writeVarying(varying, vid, &dstVarying);
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}
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__kernel void computeQuadFace(__global float *vertex,
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__global float *varying,
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__global int *F_IT,
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int vertexOffset, int varyingOffset,
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int offset, int tableOffset,
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int start, int end) {
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int i = start + get_global_id(0);
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int vid = start + get_global_id(0) + offset;
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vertex += vertexOffset;
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varying += (varying ? varyingOffset :0);
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struct Vertex dst;
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struct Varying dstVarying;
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clearVertex(&dst);
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clearVarying(&dstVarying);
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int fidx0 = F_IT[tableOffset + 4 * i + 0];
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int fidx1 = F_IT[tableOffset + 4 * i + 1];
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int fidx2 = F_IT[tableOffset + 4 * i + 2];
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int fidx3 = F_IT[tableOffset + 4 * i + 3];
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addWithWeight(&dst, vertex, fidx0, 0.25f);
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addWithWeight(&dst, vertex, fidx1, 0.25f);
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addWithWeight(&dst, vertex, fidx2, 0.25f);
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addWithWeight(&dst, vertex, fidx3, 0.25f);
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if (varying) {
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addVaryingWithWeight(&dstVarying, varying, fidx0, 0.25f);
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addVaryingWithWeight(&dstVarying, varying, fidx1, 0.25f);
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addVaryingWithWeight(&dstVarying, varying, fidx2, 0.25f);
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addVaryingWithWeight(&dstVarying, varying, fidx3, 0.25f);
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}
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writeVertex(vertex, vid, &dst);
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if (varying) writeVarying(varying, vid, &dstVarying);
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}
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__kernel void computeTriQuadFace(__global float *vertex,
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__global float *varying,
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__global int *F_IT,
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int vertexOffset, int varyingOffset,
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int offset, int tableOffset,
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int start, int end) {
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int i = start + get_global_id(0);
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int vid = start + get_global_id(0) + offset;
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vertex += vertexOffset;
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varying += (varying ? varyingOffset :0);
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struct Vertex dst;
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struct Varying dstVarying;
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clearVertex(&dst);
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clearVarying(&dstVarying);
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int fidx0 = F_IT[tableOffset + 4 * i + 0];
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int fidx1 = F_IT[tableOffset + 4 * i + 1];
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int fidx2 = F_IT[tableOffset + 4 * i + 2];
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int fidx3 = F_IT[tableOffset + 4 * i + 3];
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bool triangle = (fidx2 == fidx3);
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float weight = triangle ? 1.0f / 3.0f : 1.0f / 4.0f;
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addWithWeight(&dst, vertex, fidx0, weight);
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addWithWeight(&dst, vertex, fidx1, weight);
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addWithWeight(&dst, vertex, fidx2, weight);
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if (!triangle)
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addWithWeight(&dst, vertex, fidx3, weight);
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if (varying) {
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addVaryingWithWeight(&dstVarying, varying, fidx0, weight);
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addVaryingWithWeight(&dstVarying, varying, fidx1, weight);
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addVaryingWithWeight(&dstVarying, varying, fidx2, weight);
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if (!triangle)
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addVaryingWithWeight(&dstVarying, varying, fidx3, weight);
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}
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writeVertex(vertex, vid, &dst);
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if (varying) writeVarying(varying, vid, &dstVarying);
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}
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__kernel void computeEdge(__global float *vertex,
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__global float *varying,
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__global int *E_IT,
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__global float *E_W,
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int vertexOffset, int varyingOffset,
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int offset, int tableOffset,
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int start, int end) {
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int i = start + get_global_id(0) + tableOffset;
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int vid = start + get_global_id(0) + offset;
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int eidx0 = E_IT[4*i+0];
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int eidx1 = E_IT[4*i+1];
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int eidx2 = E_IT[4*i+2];
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int eidx3 = E_IT[4*i+3];
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vertex += vertexOffset;
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varying += (varying ? varyingOffset :0);
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float vertWeight = E_W[i*2+0];
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// Fully sharp edge : vertWeight = 0.5f;
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struct Vertex dst;
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struct Varying dstVarying;
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clearVertex(&dst);
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clearVarying(&dstVarying);
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addWithWeight(&dst, vertex, eidx0, vertWeight);
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addWithWeight(&dst, vertex, eidx1, vertWeight);
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if (eidx2 > -1) {
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float faceWeight = E_W[i*2+1];
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addWithWeight(&dst, vertex, eidx2, faceWeight);
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addWithWeight(&dst, vertex, eidx3, faceWeight);
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}
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writeVertex(vertex, vid, &dst);
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if (varying) {
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addVaryingWithWeight(&dstVarying, varying, eidx0, 0.5f);
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addVaryingWithWeight(&dstVarying, varying, eidx1, 0.5f);
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writeVarying(varying, vid, &dstVarying);
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}
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}
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__kernel void computeRestrictedEdge(__global float *vertex,
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__global float *varying,
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__global int *E_IT,
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int vertexOffset, int varyingOffset,
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int offset, int tableOffset,
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int start, int end) {
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int i = start + get_global_id(0) + tableOffset;
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int vid = start + get_global_id(0) + offset;
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int eidx0 = E_IT[4*i+0];
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int eidx1 = E_IT[4*i+1];
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int eidx2 = E_IT[4*i+2];
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int eidx3 = E_IT[4*i+3];
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vertex += vertexOffset;
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varying += (varying ? varyingOffset :0);
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struct Vertex dst;
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struct Varying dstVarying;
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clearVertex(&dst);
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clearVarying(&dstVarying);
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addWithWeight(&dst, vertex, eidx0, 0.25f);
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addWithWeight(&dst, vertex, eidx1, 0.25f);
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addWithWeight(&dst, vertex, eidx2, 0.25f);
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addWithWeight(&dst, vertex, eidx3, 0.25f);
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writeVertex(vertex, vid, &dst);
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if (varying) {
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addVaryingWithWeight(&dstVarying, varying, eidx0, 0.5f);
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addVaryingWithWeight(&dstVarying, varying, eidx1, 0.5f);
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writeVarying(varying, vid, &dstVarying);
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}
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}
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__kernel void computeVertexA(__global float *vertex,
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__global float *varying,
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__global int *V_ITa,
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__global float *V_W,
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int vertexOffset, int varyingOffset,
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int offset, int tableOffset,
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int start, int end, int pass) {
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int i = start + get_global_id(0) + tableOffset;
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int vid = start + get_global_id(0) + offset;
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int n = V_ITa[5*i+1];
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int p = V_ITa[5*i+2];
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int eidx0 = V_ITa[5*i+3];
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int eidx1 = V_ITa[5*i+4];
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vertex += vertexOffset;
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varying += (varying ? varyingOffset :0);
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float weight = (pass==1) ? V_W[i] : 1.0f - V_W[i];
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// In the case of fractional weight, the weight must be inverted since
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// the value is shared with the k_Smooth kernel (statistically the
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// k_Smooth kernel runs much more often than this one)
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if (weight>0.0f && weight<1.0f && n > 0)
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weight=1.0f-weight;
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struct Vertex dst;
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clearVertex(&dst);
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if (pass)
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addWithWeight(&dst, vertex, vid, 1.0f); // copy previous result
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if (eidx0==-1 || (pass==0 && (n==-1)) ) {
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addWithWeight(&dst, vertex, p, weight);
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} else {
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addWithWeight(&dst, vertex, p, weight * 0.75f);
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addWithWeight(&dst, vertex, eidx0, weight * 0.125f);
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addWithWeight(&dst, vertex, eidx1, weight * 0.125f);
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}
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writeVertex(vertex, vid, &dst);
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if (! pass && varying) {
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struct Varying dstVarying;
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clearVarying(&dstVarying);
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addVaryingWithWeight(&dstVarying, varying, p, 1.0f);
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writeVarying(varying, vid, &dstVarying);
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}
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}
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__kernel void computeVertexB(__global float *vertex,
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__global float *varying,
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__global int *V_ITa,
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__global int *V_IT,
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__global float *V_W,
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int vertexOffset, int varyingOffset,
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int offset, int tableOffset,
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int start, int end) {
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int i = start + get_global_id(0) + tableOffset;
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int vid = start + get_global_id(0) + offset;
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int h = V_ITa[5*i];
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int n = V_ITa[5*i+1];
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int p = V_ITa[5*i+2];
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vertex += vertexOffset;
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varying += (varying ? varyingOffset :0);
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float weight = V_W[i];
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float wp = 1.0f/(float)(n*n);
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float wv = (n-2.0f) * n * wp;
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struct Vertex dst;
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clearVertex(&dst);
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addWithWeight(&dst, vertex, p, weight * wv);
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for (int j = 0; j < n; ++j) {
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addWithWeight(&dst, vertex, V_IT[h+j*2], weight * wp);
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addWithWeight(&dst, vertex, V_IT[h+j*2+1], weight * wp);
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}
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writeVertex(vertex, vid, &dst);
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if (varying) {
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struct Varying dstVarying;
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clearVarying(&dstVarying);
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addVaryingWithWeight(&dstVarying, varying, p, 1.0f);
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writeVarying(varying, vid, &dstVarying);
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}
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}
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__kernel void computeRestrictedVertexA(__global float *vertex,
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__global float *varying,
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__global int *V_ITa,
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int vertexOffset, int varyingOffset,
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int offset, int tableOffset,
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int start, int end) {
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int i = start + get_global_id(0) + tableOffset;
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int vid = start + get_global_id(0) + offset;
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int p = V_ITa[5*i+2];
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int eidx0 = V_ITa[5*i+3];
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int eidx1 = V_ITa[5*i+4];
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vertex += vertexOffset;
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varying += (varying ? varyingOffset :0);
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struct Vertex dst;
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clearVertex(&dst);
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addWithWeight(&dst, vertex, p, 0.75f);
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addWithWeight(&dst, vertex, eidx0, 0.125f);
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addWithWeight(&dst, vertex, eidx1, 0.125f);
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writeVertex(vertex, vid, &dst);
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if (varying) {
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struct Varying dstVarying;
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clearVarying(&dstVarying);
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addVaryingWithWeight(&dstVarying, varying, p, 1.0f);
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writeVarying(varying, vid, &dstVarying);
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}
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}
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__kernel void computeRestrictedVertexB1(__global float *vertex,
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__global float *varying,
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__global int *V_ITa,
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__global int *V_IT,
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int vertexOffset, int varyingOffset,
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int offset, int tableOffset,
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int start, int end) {
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int i = start + get_global_id(0) + tableOffset;
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int vid = start + get_global_id(0) + offset;
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int h = V_ITa[5*i];
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int p = V_ITa[5*i+2];
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vertex += vertexOffset;
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varying += (varying ? varyingOffset :0);
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struct Vertex dst;
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clearVertex(&dst);
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addWithWeight(&dst, vertex, p, 0.5f);
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for (int j = 0; j < 8; ++j, ++h) {
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addWithWeight(&dst, vertex, V_IT[h], 0.0625f);
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}
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writeVertex(vertex, vid, &dst);
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|
if (varying) {
|
|
struct Varying dstVarying;
|
|
clearVarying(&dstVarying);
|
|
addVaryingWithWeight(&dstVarying, varying, p, 1.0f);
|
|
writeVarying(varying, vid, &dstVarying);
|
|
}
|
|
}
|
|
|
|
__kernel void computeRestrictedVertexB2(__global float *vertex,
|
|
__global float *varying,
|
|
__global int *V_ITa,
|
|
__global int *V_IT,
|
|
int vertexOffset, int varyingOffset,
|
|
int offset, int tableOffset,
|
|
int start, int end) {
|
|
|
|
int i = start + get_global_id(0) + tableOffset;
|
|
int vid = start + get_global_id(0) + offset;
|
|
int h = V_ITa[5*i];
|
|
int n = V_ITa[5*i+1];
|
|
int p = V_ITa[5*i+2];
|
|
vertex += vertexOffset;
|
|
varying += (varying ? varyingOffset :0);
|
|
|
|
float wp = 1.0f/(float)(n*n);
|
|
float wv = (n-2.0f) * n * wp;
|
|
|
|
struct Vertex dst;
|
|
clearVertex(&dst);
|
|
|
|
addWithWeight(&dst, vertex, p, wv);
|
|
|
|
for (int j = 0; j < n; ++j) {
|
|
addWithWeight(&dst, vertex, V_IT[h+j*2], wp);
|
|
addWithWeight(&dst, vertex, V_IT[h+j*2+1], wp);
|
|
}
|
|
writeVertex(vertex, vid, &dst);
|
|
|
|
if (varying) {
|
|
struct Varying dstVarying;
|
|
clearVarying(&dstVarying);
|
|
addVaryingWithWeight(&dstVarying, varying, p, 1.0f);
|
|
writeVarying(varying, vid, &dstVarying);
|
|
}
|
|
}
|
|
|
|
__kernel void computeLoopVertexB(__global float *vertex,
|
|
__global float *varying,
|
|
__global int *V_ITa,
|
|
__global int *V_IT,
|
|
__global float *V_W,
|
|
int vertexOffset, int varyingOffset,
|
|
int offset, int tableOffset,
|
|
int start, int end) {
|
|
|
|
int i = start + get_global_id(0) + tableOffset;
|
|
int vid = start + get_global_id(0) + offset;
|
|
int h = V_ITa[5*i];
|
|
int n = V_ITa[5*i+1];
|
|
int p = V_ITa[5*i+2];
|
|
vertex += vertexOffset;
|
|
varying += (varying ? varyingOffset :0);
|
|
|
|
float weight = V_W[i];
|
|
float wp = 1.0f/(float)(n);
|
|
float beta = 0.25f * cos((float)(M_PI) * 2.0f * wp) + 0.375f;
|
|
beta = beta * beta;
|
|
beta = (0.625f - beta) * wp;
|
|
|
|
struct Vertex dst;
|
|
clearVertex(&dst);
|
|
addWithWeight(&dst, vertex, p, weight * (1.0f - (beta * n)));
|
|
|
|
for (int j = 0; j < n; ++j) {
|
|
addWithWeight(&dst, vertex, V_IT[h+j], weight * beta);
|
|
}
|
|
writeVertex(vertex, vid, &dst);
|
|
|
|
if (varying) {
|
|
struct Varying dstVarying;
|
|
clearVarying(&dstVarying);
|
|
addVaryingWithWeight(&dstVarying, varying, p, 1.0f);
|
|
writeVarying(varying, vid, &dstVarying);
|
|
}
|
|
}
|
|
|
|
__kernel void editVertexAdd(__global float *vertex,
|
|
__global int *editIndices,
|
|
__global float *editValues,
|
|
int vertexOffset,
|
|
int primVarOffset,
|
|
int primVarWidth,
|
|
int offset, int tableOffset,
|
|
int start, int end) {
|
|
|
|
int i = start + get_global_id(0) + tableOffset;
|
|
int v = editIndices[i];
|
|
int eid = start + get_global_id(0);
|
|
vertex += vertexOffset;
|
|
vertex += v * VERTEX_STRIDE + primVarOffset;
|
|
|
|
for (int j = 0; j < primVarWidth; ++j) {
|
|
vertex[j] += editValues[eid*primVarWidth + j];
|
|
}
|
|
}
|