mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-11-12 23:20:10 +00:00
a0e72d80c3
- changed Far::PatchDescriptor size for GREGORY_TRIANGLE to 18
- modified Far::LoopPatchBuilder to construct full quartic Gregory patch
- fixed Far::LoopPatchBuilder bug related to face points near boundaries
- updated Far patch basis evaluation for Gregory and Bezier triangles
- updated Osd patch basis evaluation to match Far
- updated Osd GLSL patch size for Gregory triangle to 18
- modified Osd GLSL Gregory triangle eval and tess settings for quartic
197 lines
7.0 KiB
C
197 lines
7.0 KiB
C
//
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// Copyright 2018 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 OPENSUBDIV3_OSD_PATCH_BASIS_COMMON_EVAL_H
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#define OPENSUBDIV3_OSD_PATCH_BASIS_COMMON_EVAL_H
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OSD_FUNCTION_STORAGE_CLASS
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// template <typename REAL>
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int
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OsdEvaluatePatchBasisNormalized(
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int patchType, OsdPatchParam param,
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OSD_REAL s, OSD_REAL t,
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OSD_OUT_ARRAY(OSD_REAL, wP, 20),
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OSD_OUT_ARRAY(OSD_REAL, wDs, 20),
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OSD_OUT_ARRAY(OSD_REAL, wDt, 20),
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OSD_OUT_ARRAY(OSD_REAL, wDss, 20),
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OSD_OUT_ARRAY(OSD_REAL, wDst, 20),
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OSD_OUT_ARRAY(OSD_REAL, wDtt, 20)) {
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int boundaryMask = OsdPatchParamGetBoundary(param);
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int nPoints = 0;
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if (patchType == OSD_PATCH_DESCRIPTOR_REGULAR) {
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#if OSD_ARRAY_ARG_BOUND_OPTIONAL
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nPoints = Osd_EvalBasisBSpline(s, t, wP, wDs, wDt, wDss, wDst, wDtt);
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if (boundaryMask != 0) {
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Osd_boundBasisBSpline(
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boundaryMask, wP, wDs, wDt, wDss, wDst, wDtt);
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}
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#else
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OSD_REAL wP16[16], wDs16[16], wDt16[16],
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wDss16[16], wDst16[16], wDtt16[16];
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nPoints = Osd_EvalBasisBSpline(
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s, t, wP16, wDs16, wDt16, wDss16, wDst16, wDtt16);
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if (boundaryMask != 0) {
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Osd_boundBasisBSpline(
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boundaryMask, wP16, wDs16, wDt16, wDss16, wDst16, wDtt16);
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}
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for (int i=0; i<nPoints; ++i) {
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wP[i] = wP16[i];
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wDs[i] = wDs16[i]; wDt[i] = wDt16[i];
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wDss[i] = wDss16[i]; wDst[i] = wDst16[i]; wDtt[i] = wDtt16[i];
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}
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#endif
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} else if (patchType == OSD_PATCH_DESCRIPTOR_LOOP) {
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#if OSD_ARRAY_ARG_BOUND_OPTIONAL
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nPoints = Osd_EvalBasisBoxSplineTri(
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s, t, wP, wDs, wDt, wDss, wDst, wDtt);
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if (boundaryMask != 0) {
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Osd_boundBasisBoxSplineTri(
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boundaryMask, wP, wDs, wDt, wDss, wDst, wDtt);
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}
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#else
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OSD_REAL wP12[12], wDs12[12], wDt12[12],
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wDss12[12], wDst12[12], wDtt12[12];
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nPoints = Osd_EvalBasisBoxSplineTri(
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s, t, wP12, wDs12, wDt12, wDss12, wDst12, wDtt12);
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if (boundaryMask != 0) {
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Osd_boundBasisBoxSplineTri(
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boundaryMask, wP12, wDs12, wDt12, wDss12, wDst12, wDtt12);
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}
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for (int i=0; i<nPoints; ++i) {
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wP[i] = wP12[i];
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wDs[i] = wDs12[i]; wDt[i] = wDt12[i];
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wDss[i] = wDss12[i]; wDst[i] = wDst12[i]; wDtt[i] = wDtt12[i];
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}
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#endif
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} else if (patchType == OSD_PATCH_DESCRIPTOR_GREGORY_BASIS) {
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nPoints = Osd_EvalBasisGregory(s, t, wP, wDs, wDt, wDss, wDst, wDtt);
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} else if (patchType == OSD_PATCH_DESCRIPTOR_GREGORY_TRIANGLE) {
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#if OSD_ARRAY_ARG_BOUND_OPTIONAL
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nPoints = Osd_EvalBasisGregoryTri(s, t, wP, wDs, wDt, wDss, wDst, wDtt);
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#else
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OSD_REAL wP18[18], wDs18[18], wDt18[18],
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wDss18[18], wDst18[18], wDtt18[18];
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nPoints = Osd_EvalBasisGregoryTri(
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s, t, wP18, wDs18, wDt18, wDss18, wDst18, wDtt18);
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for (int i=0; i<nPoints; ++i) {
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wP[i] = wP18[i];
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wDs[i] = wDs18[i]; wDt[i] = wDt18[i];
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wDss[i] = wDss18[i]; wDst[i] = wDst18[i]; wDtt[i] = wDtt18[i];
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}
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#endif
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} else if (patchType == OSD_PATCH_DESCRIPTOR_QUADS) {
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#if OSD_ARRAY_ARG_BOUND_OPTIONAL
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nPoints = Osd_EvalBasisLinear(s, t, wP, wDs, wDt, wDss, wDst, wDtt);
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#else
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OSD_REAL wP4[4], wDs4[4], wDt4[4],
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wDss4[4], wDst4[4], wDtt4[4];
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nPoints = Osd_EvalBasisLinear(
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s, t, wP4, wDs4, wDt4, wDss4, wDst4, wDtt4);
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for (int i=0; i<nPoints; ++i) {
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wP[i] = wP4[i];
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wDs[i] = wDs4[i]; wDt[i] = wDt4[i];
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wDss[i] = wDss4[i]; wDst[i] = wDst4[i]; wDtt[i] = wDtt4[i];
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}
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#endif
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} else if (patchType == OSD_PATCH_DESCRIPTOR_TRIANGLES) {
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#if OSD_ARRAY_ARG_BOUND_OPTIONAL
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nPoints = Osd_EvalBasisLinearTri(s, t, wP, wDs, wDt, wDss, wDst, wDtt);
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#else
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OSD_REAL wP3[3], wDs3[3], wDt3[3],
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wDss3[3], wDst3[3], wDtt3[3];
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nPoints = Osd_EvalBasisLinearTri(
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s, t, wP3, wDs3, wDt3, wDss3, wDst3, wDtt3);
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for (int i=0; i<nPoints; ++i) {
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wP[i] = wP3[i];
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wDs[i] = wDs3[i]; wDt[i] = wDt3[i];
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wDss[i] = wDss3[i]; wDst[i] = wDst3[i]; wDtt[i] = wDtt3[i];
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}
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#endif
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} else {
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// assert(0);
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}
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return nPoints;
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}
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OSD_FUNCTION_STORAGE_CLASS
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// template <typename REAL>
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int
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OsdEvaluatePatchBasis(
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int patchType, OsdPatchParam param,
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OSD_REAL s, OSD_REAL t,
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OSD_OUT_ARRAY(OSD_REAL, wP, 20),
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OSD_OUT_ARRAY(OSD_REAL, wDs, 20),
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OSD_OUT_ARRAY(OSD_REAL, wDt, 20),
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OSD_OUT_ARRAY(OSD_REAL, wDss, 20),
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OSD_OUT_ARRAY(OSD_REAL, wDst, 20),
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OSD_OUT_ARRAY(OSD_REAL, wDtt, 20)) {
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OSD_REAL derivSign = 1.0f;
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if ((patchType == OSD_PATCH_DESCRIPTOR_LOOP) ||
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(patchType == OSD_PATCH_DESCRIPTOR_GREGORY_TRIANGLE) ||
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(patchType == OSD_PATCH_DESCRIPTOR_TRIANGLES)) {
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OSD_REAL uv[2] = OSD_ARRAY_2(OSD_REAL, s, t);
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OsdPatchParamNormalizeTriangle(param, uv);
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s = uv[0];
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t = uv[1];
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if (OsdPatchParamIsTriangleRotated(param)) {
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derivSign = -1.0f;
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}
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} else {
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OSD_REAL uv[2] = OSD_ARRAY_2(OSD_REAL, s, t);
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OsdPatchParamNormalize(param, uv);
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s = uv[0];
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t = uv[1];
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}
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int nPoints = OsdEvaluatePatchBasisNormalized(
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patchType, param, s, t, wP, wDs, wDt, wDss, wDst, wDtt);
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if (OSD_OPTIONAL(wDs && wDt)) {
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OSD_REAL d1Scale =
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derivSign * OSD_REAL_CAST(1 << OsdPatchParamGetDepth(param));
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for (int i = 0; i < nPoints; ++i) {
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wDs[i] *= d1Scale;
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wDt[i] *= d1Scale;
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}
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if (OSD_OPTIONAL(wDss && wDst && wDtt)) {
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OSD_REAL d2Scale = derivSign * d1Scale * d1Scale;
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for (int i = 0; i < nPoints; ++i) {
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wDss[i] *= d2Scale;
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wDst[i] *= d2Scale;
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wDtt[i] *= d2Scale;
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}
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}
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}
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return nPoints;
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}
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#endif /* OPENSUBDIV3_OSD_PATCH_BASIS_COMMON_EVAL_H */
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