ELF>Q@@ #line 2 "materialdefs_funcs_cloth.cl" /*************************************************************************** * Copyright 1998-2013 by authors (see AUTHORS.txt) * * * * This file is part of LuxRender. * * * * Licensed under the Apache License, Version 2.0 (the "License"); * * you may not use this file except in compliance with the License. * * You may obtain a copy of the License at * * * * http://www.apache.org/licenses/LICENSE-2.0 * * * * Unless required by applicable law or agreed to in writing, software * * distributed under the License is distributed on an "AS IS" BASIS, * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* * See the License for the specific language governing permissions and * * limitations under the License. * ***************************************************************************/ //------------------------------------------------------------------------------ // Cloth material //------------------------------------------------------------------------------ #if defined (PARAM_ENABLE_MAT_CLOTH) __constant WeaveConfig ClothWeaves[] = { // DenimWeave { 3, 6, 0.01f, 4.0f, 0.0f, 0.5f, 5.0f, 1.0f, 3.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f }, // SilkShantungWeave { 6, 8, 0.02f, 1.5f, 0.5f, 0.5f, 8.0f, 16.0f, 0.0f, 20.0f, 20.0f, 10.0f, 10.0f, 500.0f }, // SilkCharmeuseWeave { 5, 10, 0.02f, 7.3f, 0.5f, 0.5f, 9.0f, 1.0f, 3.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f }, // CottonTwillWeave { 4, 8, 0.01f, 4.0f, 0.0f, 0.5f, 6.0f, 2.0f, 4.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f }, // WoolGarbardineWeave { 6, 9, 0.01f, 4.0f, 0.0f, 0.5f, 12.0f, 6.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f }, // PolyesterWeave { 2, 2, 0.015f, 4.0f, 0.5f, 0.5f, 1.0f, 1.0f, 0.0f, 8.0f, 8.0f, 6.0f, 6.0f, 50.0f } }; __constant Yarn ClothYarns[][14] = { // DenimYarn[8] { {-30, 12, 0, 1, 5, 0.1667f, 0.75f, WARP}, {-30, 12, 0, 1, 5, 0.1667f, -0.25f, WARP}, {-30, 12, 0, 1, 5, 0.5f, 1.0833f, WARP}, {-30, 12, 0, 1, 5, 0.5f, 0.0833f, WARP}, {-30, 12, 0, 1, 5, 0.8333f, 0.4167f, WARP}, {-30, 38, 0, 1, 1, 0.1667f, 0.25f, WEFT}, {-30, 38, 0, 1, 1, 0.5f, 0.5833f, WEFT}, {-30, 38, 0, 1, 1, 0.8333f, 0.9167f, WEFT} }, // SilkShantungYarn[5] { {0, 50, -0.5, 2, 4, 0.3333f, 0.25f, WARP}, {0, 50, -0.5, 2, 4, 0.8333f, 0.75f, WARP}, {0, 23, -0.3, 4, 4, 0.3333f, 0.75f, WEFT}, {0, 23, -0.3, 4, 4, -0.1667f, 0.25f, WEFT}, {0, 23, -0.3, 4, 4, 0.8333f, 0.25f, WEFT} }, // SilkCharmeuseYarn[14] { {0, 40, 2, 1, 9, 0.1, 0.45, WARP}, {0, 40, 2, 1, 9, 0.3, 1.05, WARP}, {0, 40, 2, 1, 9, 0.3, 0.05, WARP}, {0, 40, 2, 1, 9, 0.5, 0.65, WARP}, {0, 40, 2, 1, 9, 0.5, -0.35, WARP}, {0, 40, 2, 1, 9, 0.7, 1.25, WARP}, {0, 40, 2, 1, 9, 0.7, 0.25, WARP}, {0, 40, 2, 1, 9, 0.9, 0.85, WARP}, {0, 40, 2, 1, 9, 0.9, -0.15, WARP}, {0, 60, 0, 1, 1, 0.1, 0.95, WEFT}, {0, 60, 0, 1, 1, 0.3, 0.55, WEFT}, {0, 60, 0, 1, 1, 0.5, 0.15, WEFT}, {0, 60, 0, 1, 1, 0.7, 0.75, WEFT}, {0, 60, 0, 1, 1, 0.9, 0.35, WEFT} }, // CottonTwillYarn[10] { {-30, 24, 0, 1, 6, 0.125, 0.375, WARP}, {-30, 24, 0, 1, 6, 0.375, 1.125, WARP}, {-30, 24, 0, 1, 6, 0.375, 0.125, WARP}, {-30, 24, 0, 1, 6, 0.625, 0.875, WARP}, {-30, 24, 0, 1, 6, 0.625, -0.125, WARP}, {-30, 24, 0, 1, 6, 0.875, 0.625, WARP}, {-30, 36, 0, 2, 1, 0.125, 0.875, WEFT}, {-30, 36, 0, 2, 1, 0.375, 0.625, WEFT}, {-30, 36, 0, 2, 1, 0.625, 0.375, WEFT}, {-30, 36, 0, 2, 1, 0.875, 0.125, WEFT} }, // WoolGarbardineYarn[7] { {30, 30, 0, 2, 6, 0.167, 0.667, WARP}, {30, 30, 0, 2, 6, 0.500, 1.000, WARP}, {30, 30, 0, 2, 6, 0.500, 0.000, WARP}, {30, 30, 0, 2, 6, 0.833, 0.333, WARP}, {30, 30, 0, 3, 2, 0.167, 0.167, WEFT}, {30, 30, 0, 3, 2, 0.500, 0.500, WEFT}, {30, 30, 0, 3, 2, 0.833, 0.833, WEFT} }, // PolyesterYarn[4] { {0, 22, -0.7, 1, 1, 0.25, 0.25, WARP}, {0, 22, -0.7, 1, 1, 0.75, 0.75, WARP}, {0, 16, -0.7, 1, 1, 0.25, 0.75, WEFT}, {0, 16, -0.7, 1, 1, 0.75, 0.25, WEFT} } }; __constant int ClothPatterns[][6 * 9] = { // DenimPattern[3 * 6] { 1, 3, 8, 1, 3, 5, 1, 7, 5, 1, 4, 5, 6, 4, 5, 2, 4, 5 }, // SilkShantungPattern[6 * 8] { 3, 3, 3, 3, 2, 2, 3, 3, 3, 3, 2, 2, 3, 3, 3, 3, 2, 2, 3, 3, 3, 3, 2, 2, 4, 1, 1, 5, 5, 5, 4, 1, 1, 5, 5, 5, 4, 1, 1, 5, 5, 5, 4, 1, 1, 5, 5, 5 }, // SilkCharmeusePattern[5 * 10] { 10, 2, 4, 6, 8, 1, 2, 4, 6, 8, 1, 2, 4, 13, 8, 1, 2, 4, 7, 8, 1, 11, 4, 7, 8, 1, 3, 4, 7, 8, 1, 3, 4, 7, 14, 1, 3, 4, 7, 9, 1, 3, 12, 7, 9, 1, 3, 5, 7, 9 }, // CottonTwillPattern[4 * 8] { 7, 2, 4, 6, 7, 2, 4, 6, 1, 8, 4, 6, 1, 8, 4, 6, 1, 3, 9, 6, 1, 3, 9, 6, 1, 3, 5, 10, 1, 3, 5, 10 }, // WoolGarbardinePattern[6 * 9] { 1, 1, 2, 2, 7, 7, 1, 1, 2, 2, 7, 7, 1, 1, 2, 2, 7, 7, 1, 1, 6, 6, 4, 4, 1, 1, 6, 6, 4, 4, 1, 1, 6, 6, 4, 4, 5, 5, 3, 3, 4, 4, 5, 5, 3, 3, 4, 4, 5, 5, 3, 3, 4, 4 }, // PolyesterPattern[2 * 2] { 3, 2, 1, 4 } }; ulong sampleTEA(uint v0, uint v1, uint rounds) { uint sum = 0; for (uint i = 0; i < rounds; ++i) { sum += 0x9e3779b9; v0 += ((v1 << 4) + 0xA341316C) ^ (v1 + sum) ^ ((v1 >> 5) + 0xC8013EA4); v1 += ((v0 << 4) + 0xAD90777D) ^ (v0 + sum) ^ ((v0 >> 5) + 0x7E95761E); } return ((ulong) v1 << 32) + v0; } float sampleTEAfloat(uint v0, uint v1, uint rounds) { /* Trick from MTGP: generate an uniformly distributed single precision number in [1,2) and subtract 1. */ union { uint u; float f; } x; x.u = ((sampleTEA(v0, v1, rounds) & 0xFFFFFFFF) >> 9) | 0x3f800000UL; return x.f - 1.0f; } // von Mises Distribution float vonMises(float cos_x, float b) { // assumes a = 0, b > 0 is a concentration parameter. const float factor = exp(b * cos_x) * (.5f * M_1_PI_F); const float absB = fabs(b); if (absB <= 3.75f) { const float t0 = absB / 3.75f; const float t = t0 * t0; return factor / (1.0f + t * (3.5156229f + t * (3.0899424f + t * (1.2067492f + t * (0.2659732f + t * (0.0360768f + t * 0.0045813f)))))); } else { const float t = 3.75f / absB; return factor * sqrt(absB) / (exp(absB) * (0.39894228f + t * (0.01328592f + t * (0.00225319f + t * (-0.00157565f + t * (0.00916281f + t * (-0.02057706f + t * (0.02635537f + t * (-0.01647633f + t * 0.00392377f))))))))); } } // Attenuation term float seeliger(float cos_th1, float cos_th2, float sg_a, float sg_s) { const float al = sg_s / (sg_a + sg_s); // albedo const float c1 = fmax(0.f, cos_th1); const float c2 = fmax(0.f, cos_th2); if (c1 == 0.0f || c2 == 0.0f) return 0.0f; return al * (.5f * M_1_PI_F) * .5f * c1 * c2 / (c1 + c2); } void GetYarnUV(__constant WeaveConfig *Weave, __constant Yarn *yarn, const float Repeat_U, const float Repeat_V, const float3 center, const float3 xy, float2 *uv, float *umaxMod) { *umaxMod = Radians(yarn->umax); if (Weave->period > 0.f) { /* Number of TEA iterations (the more, the better the quality of the pseudorandom floats) */ const int teaIterations = 8; // Correlated (Perlin) noise. // generate 1 seed per yarn segment const float random1 = Noise((center.x * (Weave->tileHeight * Repeat_V + sampleTEAfloat(center.x, 2.f * center.y, teaIterations)) + center.y) / Weave->period, 0.0, 0.0); const float random2 = Noise((center.y * (Weave->tileWidth * Repeat_U + sampleTEAfloat(center.x, 2.f * center.y + 1.f, teaIterations)) + center.x) / Weave->period, 0.0, 0.0); if (yarn->yarn_type == WARP) *umaxMod += random1 * Radians(Weave->dWarpUmaxOverDWarp) + random2 * Radians(Weave->dWarpUmaxOverDWeft); else *umaxMod += random1 * Radians(Weave->dWeftUmaxOverDWarp) + random2 * Radians(Weave->dWeftUmaxOverDWeft); } // Compute u and v. // See Chapter 6. // Rotate pi/2 radians around z axis if (yarn->yarn_type == WARP) { (*uv).s0 = xy.y * 2.f * *umaxMod / yarn->length; (*uv).s1 = xy.x * M_PI_F / yarn->width; } else { (*uv).s0 = xy.x * 2.f * *umaxMod / yarn->length; (*uv).s1 = -xy.y * M_PI_F / yarn->width; } } __constant Yarn *GetYarn(const ClothPreset Preset, __constant WeaveConfig *Weave, const float Repeat_U, const float Repeat_V, const float u_i, const float v_i, float2 *uv, float *umax, float *scale) { const float u = u_i * Repeat_U; const int bu = Floor2Int(u); const float ou = u - bu; const float v = v_i * Repeat_V; const int bv = Floor2Int(v); const float ov = v - bv; const uint lx = min(Weave->tileWidth - 1, Floor2UInt(ou * Weave->tileWidth)); const uint ly = Weave->tileHeight - 1 - min(Weave->tileHeight - 1, Floor2UInt(ov * Weave->tileHeight)); const int yarnID = ClothPatterns[Preset][lx + Weave->tileWidth * ly] - 1; __constant Yarn *yarn = &ClothYarns[Preset][yarnID]; const float3 center = (float3)((bu + yarn->centerU) * Weave->tileWidth, (bv + yarn->centerV) * Weave->tileHeight, 0.f); const float3 xy = (float3)((ou - yarn->centerU) * Weave->tileWidth, (ov - yarn->centerV) * Weave->tileHeight, 0.f); GetYarnUV(Weave, yarn, Repeat_U, Repeat_V, center, xy, uv, umax); /* Number of TEA iterations (the more, the better the quality of the pseudorandom floats) */ const int teaIterations = 8; // Compute random variation and scale specular component. if (Weave->fineness > 0.0f) { // Initialize random number generator based on texture location. // Generate fineness^2 seeds per 1 unit of texture. const uint index1 = (uint) ((center.x + xy.x) * Weave->fineness); const uint index2 = (uint) ((center.y + xy.y) * Weave->fineness); const float xi = sampleTEAfloat(index1, index2, teaIterations); *scale *= fmin(-log(xi), 10.0f); } return yarn; } float RadiusOfCurvature(__constant Yarn *yarn, float u, float umaxMod) { // rhat determines whether the spine is a segment // of an ellipse, a parabole, or a hyperbola. // See Section 5.3. const float rhat = 1.0f + yarn->kappa * (1.0f + 1.0f / tan(umaxMod)); const float a = 0.5f * yarn->width; if (rhat == 1.0f) { // circle; see Subsection 5.3.1. return 0.5f * yarn->length / sin(umaxMod) - a; } else if (rhat > 0.0f) { // ellipsis const float tmax = atan(rhat * tan(umaxMod)); const float bhat = (0.5f * yarn->length - a * sin(umaxMod)) / sin(tmax); const float ahat = bhat / rhat; const float t = atan(rhat * tan(u)); return pow(bhat * bhat * cos(t) * cos(t) + ahat * ahat * sin(t) * sin(t), 1.5f) / (ahat * bhat); } else if (rhat < 0.0f) { // hyperbola; see Subsection 5.3.3. const float tmax = -atanh(rhat * tan(umaxMod)); const float bhat = (0.5f * yarn->length - a * sin(umaxMod)) / sinh(tmax); const float ahat = bhat / rhat; const float t = -atanh(rhat * tan(u)); return -pow(bhat * bhat * cosh(t) * cosh(t) + ahat * ahat * sinh(t) * sinh(t), 1.5f) / (ahat * bhat); } else { // rhat == 0 // parabola; see Subsection 5.3.2. const float tmax = tan(umaxMod); const float ahat = (0.5f * yarn->length - a * sin(umaxMod)) / (2.f * tmax); const float t = tan(u); return 2.f * ahat * pow(1.f + t * t, 1.5f); } } float EvalFilamentIntegrand(__constant WeaveConfig *Weave, __constant Yarn *yarn, const float3 om_i, const float3 om_r, float u, float v, float umaxMod) { // 0 <= ss < 1.0 if (Weave->ss < 0.0f || Weave->ss >= 1.0f) return 0.0f; // w * sin(umax) < l if (yarn->width * sin(umaxMod) >= yarn->length) return 0.0f; // -1 < kappa < inf if (yarn->kappa < -1.0f) return 0.0f; // h is the half vector const float3 h = normalize(om_r + om_i); // u_of_v is location of specular reflection. const float u_of_v = atan2(h.y, h.z); // Check if u_of_v within the range of valid u values if (fabs(u_of_v) >= umaxMod) return 0.f; // Highlight has constant width delta_u const float delta_u = umaxMod * Weave->hWidth; // Check if |u(v) - u| < delta_u. if (fabs(u_of_v - u) >= delta_u) return 0.f; // n is normal to the yarn surface // t is tangent of the fibers. const float3 n = normalize((float3)(sin(v), sin(u_of_v) * cos(v), cos(u_of_v) * cos(v))); const float3 t = normalize((float3)(0.0f, cos(u_of_v), -sin(u_of_v))); // R is radius of curvature. const float R = RadiusOfCurvature(yarn, fmin(fabs(u_of_v), (1.f - Weave->ss) * umaxMod), (1.f - Weave->ss) * umaxMod); // G is geometry factor. const float a = 0.5f * yarn->width; const float3 om_i_plus_om_r = om_i + om_r; const float3 t_cross_h = cross(t, h); const float Gu = a * (R + a * cos(v)) / (length(om_i_plus_om_r) * fabs(t_cross_h.x)); // fc is phase function const float fc = Weave->alpha + vonMises(-dot(om_i, om_r), Weave->beta); // attenuation function without smoothing. float As = seeliger(dot(n, om_i), dot(n, om_r), 0, 1); // As is attenuation function with smoothing. if (Weave->ss > 0.0f) As *= SmoothStep(0.f, 1.f, (umaxMod - fabs(u_of_v)) / (Weave->ss * umaxMod)); // fs is scattering function. const float fs = Gu * fc * As; // Domain transform. return fs * M_PI_F / Weave->hWidth; } float EvalStapleIntegrand(__constant WeaveConfig *Weave, __constant Yarn *yarn, const float3 om_i, const float3 om_r, float u, float v, float umaxMod) { // w * sin(umax) < l if (yarn->width * sin(umaxMod) >= yarn->length) return 0.0f; // -1 < kappa < inf if (yarn->kappa < -1.0f) return 0.0f; // h is the half vector const float3 h = normalize(om_i + om_r); // v_of_u is location of specular reflection. const float D = (h.y * cos(u) - h.z * sin(u)) / (sqrt(h.x * h.x + pow(h.y * sin(u) + h.z * cos(u), 2.0f)) * tan(Radians(yarn->psi))); if (!(fabs(D) < 1.f)) return 0.f; const float v_of_u = atan2(-h.y * sin(u) - h.z * cos(u), h.x) + acos(D); // Highlight has constant width delta_x on screen. const float delta_v = .5f * M_PI_F * Weave->hWidth; // Check if |x(v(u)) - x(v)| < delta_x/2. if (fabs(v_of_u - v) >= delta_v) return 0.f; // n is normal to the yarn surface. const float3 n = normalize((float3)(sin(v_of_u), sin(u) * cos(v_of_u), cos(u) * cos(v_of_u))); // R is radius of curvature. const float R = RadiusOfCurvature(yarn, fabs(u), umaxMod); // G is geometry factor. const float a = 0.5f * yarn->width; const float3 om_i_plus_om_r = om_i + om_r; const float Gv = a * (R + a * cos(v_of_u)) / (length(om_i_plus_om_r) * dot(n, h) * fabs(sin(Radians(yarn->psi)))); // fc is phase function. const float fc = Weave->alpha + vonMises(-dot(om_i, om_r), Weave->beta); // A is attenuation function without smoothing. const float A = seeliger(dot(n, om_i), dot(n, om_r), 0, 1); // fs is scattering function. const float fs = Gv * fc * A; // Domain transform. return fs * 2.0f * umaxMod / Weave->hWidth; } float EvalIntegrand(__constant WeaveConfig *Weave, __constant Yarn *yarn, const float2 uv, float umaxMod, float3 *om_i, float3 *om_r) { if (yarn->yarn_type == WARP) { if (Radians(yarn->psi != 0.0f)) return EvalStapleIntegrand(Weave, yarn, *om_i, *om_r, uv.s0, uv.s1, umaxMod) * (Weave->warpArea + Weave->weftArea) / Weave->warpArea; else return EvalFilamentIntegrand(Weave, yarn, *om_i, *om_r, uv.s0, uv.s1, umaxMod) * (Weave->warpArea + Weave->weftArea) / Weave->warpArea; } else { // Rotate pi/2 radians around z axis //swap((*om_i).x, (*om_i).y); float tmp = (*om_i).x; (*om_i).x = (*om_i).y; (*om_i).y = tmp; (*om_i).x = -(*om_i).x; //swap((*om_r).x, (*om_r).y); tmp = (*om_r).x; (*om_r).x = (*om_r).y; (*om_r).y = tmp; (*om_r).x = -(*om_r).x; if (Radians(yarn->psi != 0.0f)) return EvalStapleIntegrand(Weave, yarn, *om_i, *om_r, uv.s0, uv.s1, umaxMod) * (Weave->warpArea + Weave->weftArea) / Weave->weftArea; else return EvalFilamentIntegrand(Weave, yarn, *om_i, *om_r, uv.s0, uv.s1, umaxMod) * (Weave->warpArea + Weave->weftArea) / Weave->weftArea; } } float EvalSpecular(__constant WeaveConfig *Weave, __constant Yarn *yarn, const float2 uv, float umax, const float3 wo, const float3 wi) { // Get incident and exitant directions. float3 om_i = wi; if (om_i.z < 0.f) om_i = -om_i; float3 om_r = wo; if (om_r.z < 0.f) om_r = -om_r; // Compute specular contribution. return EvalIntegrand(Weave, yarn, uv, umax, &om_i, &om_r); } float3 ClothMaterial_Evaluate(__global Material *material, __global HitPoint *hitPoint, const float3 localLightDir, const float3 localEyeDir, BSDFEvent *event, float *directPdfW TEXTURES_PARAM_DECL) { *directPdfW = fabs(localLightDir.z * M_1_PI_F); *event = GLOSSY | REFLECT; const ClothPreset Preset = material->cloth.Preset; __constant WeaveConfig *Weave = &ClothWeaves[Preset]; const float Repeat_U = material->cloth.Repeat_U; const float Repeat_V = material->cloth.Repeat_V; float2 uv; float umax, scale = material->cloth.specularNormalization; __constant Yarn *yarn = GetYarn(Preset, Weave, Repeat_U, Repeat_V, hitPoint->uv.u, hitPoint->uv.v, &uv, &umax, &scale); scale = scale * EvalSpecular(Weave, yarn, uv, umax, localLightDir, localEyeDir); const uint ksIndex = yarn->yarn_type == WARP ? material->cloth.Warp_KsIndex : material->cloth.Weft_KsIndex; const uint kdIndex = yarn->yarn_type == WARP ? material->cloth.Warp_KdIndex : material->cloth.Weft_KdIndex; const float3 ksVal = Spectrum_Clamp(Texture_GetSpectrumValue(&texs[ksIndex], hitPoint TEXTURES_PARAM)); const float3 kdVal = Spectrum_Clamp(Texture_GetSpectrumValue(&texs[kdIndex], hitPoint TEXTURES_PARAM)); return (kdVal + ksVal * scale) * M_1_PI_F * fabs(localLightDir.z); } float3 ClothMaterial_Sample(__global Material *material, __global HitPoint *hitPoint, const float3 localFixedDir, float3 *localSampledDir, const float u0, const float u1, float *pdfW, float *absCosSampledDir, BSDFEvent *event, const BSDFEvent requestedEvent TEXTURES_PARAM_DECL) { if (!(requestedEvent & (GLOSSY | REFLECT)) || (fabs(localFixedDir.z) < DEFAULT_COS_EPSILON_STATIC)) return BLACK; *localSampledDir = (signbit(localFixedDir.z) ? -1.f : 1.f) * CosineSampleHemisphereWithPdf(u0, u1, pdfW); *absCosSampledDir = fabs((*localSampledDir).z); if (*absCosSampledDir < DEFAULT_COS_EPSILON_STATIC) return BLACK; *event = GLOSSY | REFLECT; const ClothPreset Preset = material->cloth.Preset; __constant WeaveConfig *Weave = &ClothWeaves[Preset]; const float Repeat_U = material->cloth.Repeat_U; const float Repeat_V = material->cloth.Repeat_V; float2 uv; float umax, scale = material->cloth.specularNormalization; __constant Yarn *yarn = GetYarn(Preset, Weave, Repeat_U, Repeat_V, hitPoint->uv.u, hitPoint->uv.v, &uv, &umax, &scale); // if (!hitPoint.fromLight) scale = scale * EvalSpecular(Weave, yarn, uv, umax, localFixedDir, *localSampledDir); // else // scale = scale * EvalSpecular(Weave, yarn, uv, umax, *localSampledDir, localFixedDir); const uint ksIndex = yarn->yarn_type == WARP ? material->cloth.Warp_KsIndex : material->cloth.Weft_KsIndex; const uint kdIndex = yarn->yarn_type == WARP ? material->cloth.Warp_KdIndex : material->cloth.Weft_KdIndex; const float3 ksVal = Spectrum_Clamp(Texture_GetSpectrumValue(&texs[ksIndex], hitPoint TEXTURES_PARAM)); const float3 kdVal = Spectrum_Clamp(Texture_GetSpectrumValue(&texs[kdIndex], hitPoint TEXTURES_PARAM)); return kdVal + ksVal * scale; } #endif SH5HHHT$HH=HHH[GCC: (GNU) 4.7.1zRx <AK nA.symtab.strtab.shstrtab.text.data.bss.rodata.str1.8.rela.text.startup.rela.ctors.comment.note.GNU-stack.rela.eh_frame@!@'@,2@eP@P< ;XSQNYZ0QcQx Q8s0Y XQU  W%<  X ]smaterialdefs_funcs_cloth_kernel.cpp_GLOBAL__sub_I_materialdefs_funcs_cloth_kernel.cpp.LC0_GLOBAL_OFFSET_TABLE__ZN3slg3ocl37KernelSource_materialdefs_funcs_clothE_ZNSsC1EPKcRKSaIcE_ZNSsD1Ev__dso_handle__cxa_atexit  # -2