diff options
Diffstat (limited to 'intern/cycles/kernel/svm')
| -rw-r--r-- | intern/cycles/kernel/svm/svm_blackbody.h | 3 | ||||
| -rw-r--r-- | intern/cycles/kernel/svm/svm_closure.h | 9 | ||||
| -rw-r--r-- | intern/cycles/kernel/svm/svm_image.h | 190 | ||||
| -rw-r--r-- | intern/cycles/kernel/svm/svm_math_util.h | 107 | ||||
| -rw-r--r-- | intern/cycles/kernel/svm/svm_wavelength.h | 77 |
5 files changed, 187 insertions, 199 deletions
diff --git a/intern/cycles/kernel/svm/svm_blackbody.h b/intern/cycles/kernel/svm/svm_blackbody.h index b750ad87b7f..51590b18505 100644 --- a/intern/cycles/kernel/svm/svm_blackbody.h +++ b/intern/cycles/kernel/svm/svm_blackbody.h @@ -41,8 +41,7 @@ ccl_device void svm_node_blackbody(KernelGlobals *kg, ShaderData *sd, float *sta float3 color_rgb = svm_math_blackbody_color(temperature); - if(stack_valid(col_offset)) - stack_store_float3(stack, col_offset, color_rgb); + stack_store_float3(stack, col_offset, color_rgb); } CCL_NAMESPACE_END diff --git a/intern/cycles/kernel/svm/svm_closure.h b/intern/cycles/kernel/svm/svm_closure.h index 844245ee2d4..4268813b263 100644 --- a/intern/cycles/kernel/svm/svm_closure.h +++ b/intern/cycles/kernel/svm/svm_closure.h @@ -158,8 +158,8 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float * } /* diffuse */ - if(fabsf(average(base_color)) > CLOSURE_WEIGHT_CUTOFF) { - if(subsurface < CLOSURE_WEIGHT_CUTOFF && diffuse_weight > CLOSURE_WEIGHT_CUTOFF) { + if(fabsf(average(mixed_ss_base_color)) > CLOSURE_WEIGHT_CUTOFF) { + if(subsurface <= CLOSURE_WEIGHT_CUTOFF && diffuse_weight > CLOSURE_WEIGHT_CUTOFF) { float3 diff_weight = weight * base_color * diffuse_weight; PrincipledDiffuseBsdf *bsdf = (PrincipledDiffuseBsdf*)bsdf_alloc(sd, sizeof(PrincipledDiffuseBsdf), diff_weight); @@ -280,8 +280,8 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float * float aspect = safe_sqrtf(1.0f - anisotropic * 0.9f); float r2 = roughness * roughness; - bsdf->alpha_x = fmaxf(0.001f, r2 / aspect); - bsdf->alpha_y = fmaxf(0.001f, r2 * aspect); + bsdf->alpha_x = r2 / aspect; + bsdf->alpha_y = r2 * aspect; float m_cdlum = 0.3f * base_color.x + 0.6f * base_color.y + 0.1f * base_color.z; // luminance approx. float3 m_ctint = m_cdlum > 0.0f ? base_color / m_cdlum : make_float3(0.0f, 0.0f, 0.0f); // normalize lum. to isolate hue+sat @@ -725,6 +725,7 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float * HairBsdf *bsdf = (HairBsdf*)bsdf_alloc(sd, sizeof(HairBsdf), weight); if(bsdf) { + bsdf->N = N; bsdf->roughness1 = param1; bsdf->roughness2 = param2; bsdf->offset = -stack_load_float(stack, data_node.z); diff --git a/intern/cycles/kernel/svm/svm_image.h b/intern/cycles/kernel/svm/svm_image.h index 8e45dbfa5ff..6d6e92e73f6 100644 --- a/intern/cycles/kernel/svm/svm_image.h +++ b/intern/cycles/kernel/svm/svm_image.h @@ -16,19 +16,6 @@ CCL_NAMESPACE_BEGIN -/* Float4 textures on various devices. */ -#if defined(__KERNEL_CPU__) -# define TEX_NUM_FLOAT4_IMAGES TEX_NUM_FLOAT4_CPU -#elif defined(__KERNEL_CUDA__) -# if __CUDA_ARCH__ < 300 -# define TEX_NUM_FLOAT4_IMAGES TEX_NUM_FLOAT4_CUDA -# else -# define TEX_NUM_FLOAT4_IMAGES TEX_NUM_FLOAT4_CUDA_KEPLER -# endif -#else -# define TEX_NUM_FLOAT4_IMAGES TEX_NUM_FLOAT4_OPENCL -#endif - ccl_device float4 svm_image_texture(KernelGlobals *kg, int id, float x, float y, uint srgb, uint use_alpha) { #ifdef __KERNEL_CPU__ @@ -50,94 +37,94 @@ ccl_device float4 svm_image_texture(KernelGlobals *kg, int id, float x, float y, switch(id) { case 0: r = kernel_tex_image_interp(__tex_image_float4_000, x, y); break; - case 1: r = kernel_tex_image_interp(__tex_image_float4_001, x, y); break; - case 2: r = kernel_tex_image_interp(__tex_image_float4_002, x, y); break; - case 3: r = kernel_tex_image_interp(__tex_image_float4_003, x, y); break; - case 4: r = kernel_tex_image_interp(__tex_image_float4_004, x, y); break; - case 5: r = kernel_tex_image_interp(__tex_image_byte4_005, x, y); break; - case 6: r = kernel_tex_image_interp(__tex_image_byte4_006, x, y); break; - case 7: r = kernel_tex_image_interp(__tex_image_byte4_007, x, y); break; - case 8: r = kernel_tex_image_interp(__tex_image_byte4_008, x, y); break; + case 8: r = kernel_tex_image_interp(__tex_image_float4_008, x, y); break; + case 16: r = kernel_tex_image_interp(__tex_image_float4_016, x, y); break; + case 24: r = kernel_tex_image_interp(__tex_image_float4_024, x, y); break; + case 32: r = kernel_tex_image_interp(__tex_image_float4_032, x, y); break; + case 1: r = kernel_tex_image_interp(__tex_image_byte4_001, x, y); break; case 9: r = kernel_tex_image_interp(__tex_image_byte4_009, x, y); break; - case 10: r = kernel_tex_image_interp(__tex_image_byte4_010, x, y); break; - case 11: r = kernel_tex_image_interp(__tex_image_byte4_011, x, y); break; - case 12: r = kernel_tex_image_interp(__tex_image_byte4_012, x, y); break; - case 13: r = kernel_tex_image_interp(__tex_image_byte4_013, x, y); break; - case 14: r = kernel_tex_image_interp(__tex_image_byte4_014, x, y); break; - case 15: r = kernel_tex_image_interp(__tex_image_byte4_015, x, y); break; - case 16: r = kernel_tex_image_interp(__tex_image_byte4_016, x, y); break; case 17: r = kernel_tex_image_interp(__tex_image_byte4_017, x, y); break; - case 18: r = kernel_tex_image_interp(__tex_image_byte4_018, x, y); break; - case 19: r = kernel_tex_image_interp(__tex_image_byte4_019, x, y); break; - case 20: r = kernel_tex_image_interp(__tex_image_byte4_020, x, y); break; - case 21: r = kernel_tex_image_interp(__tex_image_byte4_021, x, y); break; - case 22: r = kernel_tex_image_interp(__tex_image_byte4_022, x, y); break; - case 23: r = kernel_tex_image_interp(__tex_image_byte4_023, x, y); break; - case 24: r = kernel_tex_image_interp(__tex_image_byte4_024, x, y); break; case 25: r = kernel_tex_image_interp(__tex_image_byte4_025, x, y); break; - case 26: r = kernel_tex_image_interp(__tex_image_byte4_026, x, y); break; - case 27: r = kernel_tex_image_interp(__tex_image_byte4_027, x, y); break; - case 28: r = kernel_tex_image_interp(__tex_image_byte4_028, x, y); break; - case 29: r = kernel_tex_image_interp(__tex_image_byte4_029, x, y); break; - case 30: r = kernel_tex_image_interp(__tex_image_byte4_030, x, y); break; - case 31: r = kernel_tex_image_interp(__tex_image_byte4_031, x, y); break; - case 32: r = kernel_tex_image_interp(__tex_image_byte4_032, x, y); break; case 33: r = kernel_tex_image_interp(__tex_image_byte4_033, x, y); break; - case 34: r = kernel_tex_image_interp(__tex_image_byte4_034, x, y); break; - case 35: r = kernel_tex_image_interp(__tex_image_byte4_035, x, y); break; - case 36: r = kernel_tex_image_interp(__tex_image_byte4_036, x, y); break; - case 37: r = kernel_tex_image_interp(__tex_image_byte4_037, x, y); break; - case 38: r = kernel_tex_image_interp(__tex_image_byte4_038, x, y); break; - case 39: r = kernel_tex_image_interp(__tex_image_byte4_039, x, y); break; - case 40: r = kernel_tex_image_interp(__tex_image_byte4_040, x, y); break; case 41: r = kernel_tex_image_interp(__tex_image_byte4_041, x, y); break; - case 42: r = kernel_tex_image_interp(__tex_image_byte4_042, x, y); break; - case 43: r = kernel_tex_image_interp(__tex_image_byte4_043, x, y); break; - case 44: r = kernel_tex_image_interp(__tex_image_byte4_044, x, y); break; - case 45: r = kernel_tex_image_interp(__tex_image_byte4_045, x, y); break; - case 46: r = kernel_tex_image_interp(__tex_image_byte4_046, x, y); break; - case 47: r = kernel_tex_image_interp(__tex_image_byte4_047, x, y); break; - case 48: r = kernel_tex_image_interp(__tex_image_byte4_048, x, y); break; case 49: r = kernel_tex_image_interp(__tex_image_byte4_049, x, y); break; - case 50: r = kernel_tex_image_interp(__tex_image_byte4_050, x, y); break; - case 51: r = kernel_tex_image_interp(__tex_image_byte4_051, x, y); break; - case 52: r = kernel_tex_image_interp(__tex_image_byte4_052, x, y); break; - case 53: r = kernel_tex_image_interp(__tex_image_byte4_053, x, y); break; - case 54: r = kernel_tex_image_interp(__tex_image_byte4_054, x, y); break; - case 55: r = kernel_tex_image_interp(__tex_image_byte4_055, x, y); break; - case 56: r = kernel_tex_image_interp(__tex_image_byte4_056, x, y); break; case 57: r = kernel_tex_image_interp(__tex_image_byte4_057, x, y); break; - case 58: r = kernel_tex_image_interp(__tex_image_byte4_058, x, y); break; - case 59: r = kernel_tex_image_interp(__tex_image_byte4_059, x, y); break; - case 60: r = kernel_tex_image_interp(__tex_image_byte4_060, x, y); break; - case 61: r = kernel_tex_image_interp(__tex_image_byte4_061, x, y); break; - case 62: r = kernel_tex_image_interp(__tex_image_byte4_062, x, y); break; - case 63: r = kernel_tex_image_interp(__tex_image_byte4_063, x, y); break; - case 64: r = kernel_tex_image_interp(__tex_image_byte4_064, x, y); break; case 65: r = kernel_tex_image_interp(__tex_image_byte4_065, x, y); break; - case 66: r = kernel_tex_image_interp(__tex_image_byte4_066, x, y); break; - case 67: r = kernel_tex_image_interp(__tex_image_byte4_067, x, y); break; - case 68: r = kernel_tex_image_interp(__tex_image_byte4_068, x, y); break; - case 69: r = kernel_tex_image_interp(__tex_image_byte4_069, x, y); break; - case 70: r = kernel_tex_image_interp(__tex_image_byte4_070, x, y); break; - case 71: r = kernel_tex_image_interp(__tex_image_byte4_071, x, y); break; - case 72: r = kernel_tex_image_interp(__tex_image_byte4_072, x, y); break; case 73: r = kernel_tex_image_interp(__tex_image_byte4_073, x, y); break; - case 74: r = kernel_tex_image_interp(__tex_image_byte4_074, x, y); break; - case 75: r = kernel_tex_image_interp(__tex_image_byte4_075, x, y); break; - case 76: r = kernel_tex_image_interp(__tex_image_byte4_076, x, y); break; - case 77: r = kernel_tex_image_interp(__tex_image_byte4_077, x, y); break; - case 78: r = kernel_tex_image_interp(__tex_image_byte4_078, x, y); break; - case 79: r = kernel_tex_image_interp(__tex_image_byte4_079, x, y); break; - case 80: r = kernel_tex_image_interp(__tex_image_byte4_080, x, y); break; case 81: r = kernel_tex_image_interp(__tex_image_byte4_081, x, y); break; - case 82: r = kernel_tex_image_interp(__tex_image_byte4_082, x, y); break; - case 83: r = kernel_tex_image_interp(__tex_image_byte4_083, x, y); break; - case 84: r = kernel_tex_image_interp(__tex_image_byte4_084, x, y); break; - case 85: r = kernel_tex_image_interp(__tex_image_byte4_085, x, y); break; - case 86: r = kernel_tex_image_interp(__tex_image_byte4_086, x, y); break; - case 87: r = kernel_tex_image_interp(__tex_image_byte4_087, x, y); break; - case 88: r = kernel_tex_image_interp(__tex_image_byte4_088, x, y); break; + case 89: r = kernel_tex_image_interp(__tex_image_byte4_089, x, y); break; + case 97: r = kernel_tex_image_interp(__tex_image_byte4_097, x, y); break; + case 105: r = kernel_tex_image_interp(__tex_image_byte4_105, x, y); break; + case 113: r = kernel_tex_image_interp(__tex_image_byte4_113, x, y); break; + case 121: r = kernel_tex_image_interp(__tex_image_byte4_121, x, y); break; + case 129: r = kernel_tex_image_interp(__tex_image_byte4_129, x, y); break; + case 137: r = kernel_tex_image_interp(__tex_image_byte4_137, x, y); break; + case 145: r = kernel_tex_image_interp(__tex_image_byte4_145, x, y); break; + case 153: r = kernel_tex_image_interp(__tex_image_byte4_153, x, y); break; + case 161: r = kernel_tex_image_interp(__tex_image_byte4_161, x, y); break; + case 169: r = kernel_tex_image_interp(__tex_image_byte4_169, x, y); break; + case 177: r = kernel_tex_image_interp(__tex_image_byte4_177, x, y); break; + case 185: r = kernel_tex_image_interp(__tex_image_byte4_185, x, y); break; + case 193: r = kernel_tex_image_interp(__tex_image_byte4_193, x, y); break; + case 201: r = kernel_tex_image_interp(__tex_image_byte4_201, x, y); break; + case 209: r = kernel_tex_image_interp(__tex_image_byte4_209, x, y); break; + case 217: r = kernel_tex_image_interp(__tex_image_byte4_217, x, y); break; + case 225: r = kernel_tex_image_interp(__tex_image_byte4_225, x, y); break; + case 233: r = kernel_tex_image_interp(__tex_image_byte4_233, x, y); break; + case 241: r = kernel_tex_image_interp(__tex_image_byte4_241, x, y); break; + case 249: r = kernel_tex_image_interp(__tex_image_byte4_249, x, y); break; + case 257: r = kernel_tex_image_interp(__tex_image_byte4_257, x, y); break; + case 265: r = kernel_tex_image_interp(__tex_image_byte4_265, x, y); break; + case 273: r = kernel_tex_image_interp(__tex_image_byte4_273, x, y); break; + case 281: r = kernel_tex_image_interp(__tex_image_byte4_281, x, y); break; + case 289: r = kernel_tex_image_interp(__tex_image_byte4_289, x, y); break; + case 297: r = kernel_tex_image_interp(__tex_image_byte4_297, x, y); break; + case 305: r = kernel_tex_image_interp(__tex_image_byte4_305, x, y); break; + case 313: r = kernel_tex_image_interp(__tex_image_byte4_313, x, y); break; + case 321: r = kernel_tex_image_interp(__tex_image_byte4_321, x, y); break; + case 329: r = kernel_tex_image_interp(__tex_image_byte4_329, x, y); break; + case 337: r = kernel_tex_image_interp(__tex_image_byte4_337, x, y); break; + case 345: r = kernel_tex_image_interp(__tex_image_byte4_345, x, y); break; + case 353: r = kernel_tex_image_interp(__tex_image_byte4_353, x, y); break; + case 361: r = kernel_tex_image_interp(__tex_image_byte4_361, x, y); break; + case 369: r = kernel_tex_image_interp(__tex_image_byte4_369, x, y); break; + case 377: r = kernel_tex_image_interp(__tex_image_byte4_377, x, y); break; + case 385: r = kernel_tex_image_interp(__tex_image_byte4_385, x, y); break; + case 393: r = kernel_tex_image_interp(__tex_image_byte4_393, x, y); break; + case 401: r = kernel_tex_image_interp(__tex_image_byte4_401, x, y); break; + case 409: r = kernel_tex_image_interp(__tex_image_byte4_409, x, y); break; + case 417: r = kernel_tex_image_interp(__tex_image_byte4_417, x, y); break; + case 425: r = kernel_tex_image_interp(__tex_image_byte4_425, x, y); break; + case 433: r = kernel_tex_image_interp(__tex_image_byte4_433, x, y); break; + case 441: r = kernel_tex_image_interp(__tex_image_byte4_441, x, y); break; + case 449: r = kernel_tex_image_interp(__tex_image_byte4_449, x, y); break; + case 457: r = kernel_tex_image_interp(__tex_image_byte4_457, x, y); break; + case 465: r = kernel_tex_image_interp(__tex_image_byte4_465, x, y); break; + case 473: r = kernel_tex_image_interp(__tex_image_byte4_473, x, y); break; + case 481: r = kernel_tex_image_interp(__tex_image_byte4_481, x, y); break; + case 489: r = kernel_tex_image_interp(__tex_image_byte4_489, x, y); break; + case 497: r = kernel_tex_image_interp(__tex_image_byte4_497, x, y); break; + case 505: r = kernel_tex_image_interp(__tex_image_byte4_505, x, y); break; + case 513: r = kernel_tex_image_interp(__tex_image_byte4_513, x, y); break; + case 521: r = kernel_tex_image_interp(__tex_image_byte4_521, x, y); break; + case 529: r = kernel_tex_image_interp(__tex_image_byte4_529, x, y); break; + case 537: r = kernel_tex_image_interp(__tex_image_byte4_537, x, y); break; + case 545: r = kernel_tex_image_interp(__tex_image_byte4_545, x, y); break; + case 553: r = kernel_tex_image_interp(__tex_image_byte4_553, x, y); break; + case 561: r = kernel_tex_image_interp(__tex_image_byte4_561, x, y); break; + case 569: r = kernel_tex_image_interp(__tex_image_byte4_569, x, y); break; + case 577: r = kernel_tex_image_interp(__tex_image_byte4_577, x, y); break; + case 585: r = kernel_tex_image_interp(__tex_image_byte4_585, x, y); break; + case 593: r = kernel_tex_image_interp(__tex_image_byte4_593, x, y); break; + case 601: r = kernel_tex_image_interp(__tex_image_byte4_601, x, y); break; + case 609: r = kernel_tex_image_interp(__tex_image_byte4_609, x, y); break; + case 617: r = kernel_tex_image_interp(__tex_image_byte4_617, x, y); break; + case 625: r = kernel_tex_image_interp(__tex_image_byte4_625, x, y); break; + case 633: r = kernel_tex_image_interp(__tex_image_byte4_633, x, y); break; + case 641: r = kernel_tex_image_interp(__tex_image_byte4_641, x, y); break; + case 649: r = kernel_tex_image_interp(__tex_image_byte4_649, x, y); break; + case 657: r = kernel_tex_image_interp(__tex_image_byte4_657, x, y); break; + case 665: r = kernel_tex_image_interp(__tex_image_byte4_665, x, y); break; default: kernel_assert(0); return make_float4(0.0f, 0.0f, 0.0f, 0.0f); @@ -224,6 +211,8 @@ ccl_device void svm_node_tex_image_box(KernelGlobals *kg, ShaderData *sd, float object_inverse_normal_transform(kg, sd, &N); /* project from direction vector to barycentric coordinates in triangles */ + float3 signed_N = N; + N.x = fabsf(N.x); N.y = fabsf(N.y); N.z = fabsf(N.z); @@ -293,12 +282,19 @@ ccl_device void svm_node_tex_image_box(KernelGlobals *kg, ShaderData *sd, float float4 f = make_float4(0.0f, 0.0f, 0.0f, 0.0f); uint use_alpha = stack_valid(alpha_offset); - if(weight.x > 0.0f) - f += weight.x*svm_image_texture(kg, id, co.y, co.z, srgb, use_alpha); - if(weight.y > 0.0f) - f += weight.y*svm_image_texture(kg, id, co.x, co.z, srgb, use_alpha); - if(weight.z > 0.0f) - f += weight.z*svm_image_texture(kg, id, co.y, co.x, srgb, use_alpha); + /* Map so that no textures are flipped, rotation is somewhat arbitrary. */ + if(weight.x > 0.0f) { + float2 uv = make_float2((signed_N.x < 0.0f)? 1.0f - co.y: co.y, co.z); + f += weight.x*svm_image_texture(kg, id, uv.x, uv.y, srgb, use_alpha); + } + if(weight.y > 0.0f) { + float2 uv = make_float2((signed_N.y > 0.0f)? 1.0f - co.x: co.x, co.z); + f += weight.y*svm_image_texture(kg, id, uv.x, uv.y, srgb, use_alpha); + } + if(weight.z > 0.0f) { + float2 uv = make_float2((signed_N.z > 0.0f)? 1.0f - co.y: co.y, co.x); + f += weight.z*svm_image_texture(kg, id, uv.x, uv.y, srgb, use_alpha); + } if(stack_valid(out_offset)) stack_store_float3(stack, out_offset, make_float3(f.x, f.y, f.z)); diff --git a/intern/cycles/kernel/svm/svm_math_util.h b/intern/cycles/kernel/svm/svm_math_util.h index a7f15de7325..1ce7777aac3 100644 --- a/intern/cycles/kernel/svm/svm_math_util.h +++ b/intern/cycles/kernel/svm/svm_math_util.h @@ -100,71 +100,64 @@ ccl_device float svm_math(NodeMath type, float Fac1, float Fac2) return Fac; } -ccl_device float3 svm_math_blackbody_color(float t) { - /* Calculate color in range 800..12000 using an approximation - * a/x+bx+c for R and G and ((at + b)t + c)t + d) for B - * Max absolute error for RGB is (0.00095, 0.00077, 0.00057), - * which is enough to get the same 8 bit/channel color. - */ - - const float rc[6][3] = { - { 2.52432244e+03f, -1.06185848e-03f, 3.11067539e+00f }, - { 3.37763626e+03f, -4.34581697e-04f, 1.64843306e+00f }, - { 4.10671449e+03f, -8.61949938e-05f, 6.41423749e-01f }, - { 4.66849800e+03f, 2.85655028e-05f, 1.29075375e-01f }, - { 4.60124770e+03f, 2.89727618e-05f, 1.48001316e-01f }, - { 3.78765709e+03f, 9.36026367e-06f, 3.98995841e-01f }, - }; - - const float gc[6][3] = { - { -7.50343014e+02f, 3.15679613e-04f, 4.73464526e-01f }, - { -1.00402363e+03f, 1.29189794e-04f, 9.08181524e-01f }, - { -1.22075471e+03f, 2.56245413e-05f, 1.20753416e+00f }, - { -1.42546105e+03f, -4.01730887e-05f, 1.44002695e+00f }, - { -1.18134453e+03f, -2.18913373e-05f, 1.30656109e+00f }, - { -5.00279505e+02f, -4.59745390e-06f, 1.09090465e+00f }, - }; - - const float bc[6][4] = { - { 0.0f, 0.0f, 0.0f, 0.0f }, /* zeros should be optimized by compiler */ - { 0.0f, 0.0f, 0.0f, 0.0f }, - { 0.0f, 0.0f, 0.0f, 0.0f }, - { -2.02524603e-11f, 1.79435860e-07f, -2.60561875e-04f, -1.41761141e-02f }, - { -2.22463426e-13f, -1.55078698e-08f, 3.81675160e-04f, -7.30646033e-01f }, - { 6.72595954e-13f, -2.73059993e-08f, 4.24068546e-04f, -7.52204323e-01f }, - }; - - int i; +/* Calculate color in range 800..12000 using an approximation + * a/x+bx+c for R and G and ((at + b)t + c)t + d) for B + * Max absolute error for RGB is (0.00095, 0.00077, 0.00057), + * which is enough to get the same 8 bit/channel color. + */ + +ccl_static_constant float blackbody_table_r[6][3] = { + { 2.52432244e+03f, -1.06185848e-03f, 3.11067539e+00f }, + { 3.37763626e+03f, -4.34581697e-04f, 1.64843306e+00f }, + { 4.10671449e+03f, -8.61949938e-05f, 6.41423749e-01f }, + { 4.66849800e+03f, 2.85655028e-05f, 1.29075375e-01f }, + { 4.60124770e+03f, 2.89727618e-05f, 1.48001316e-01f }, + { 3.78765709e+03f, 9.36026367e-06f, 3.98995841e-01f }, +}; + +ccl_static_constant float blackbody_table_g[6][3] = { + { -7.50343014e+02f, 3.15679613e-04f, 4.73464526e-01f }, + { -1.00402363e+03f, 1.29189794e-04f, 9.08181524e-01f }, + { -1.22075471e+03f, 2.56245413e-05f, 1.20753416e+00f }, + { -1.42546105e+03f, -4.01730887e-05f, 1.44002695e+00f }, + { -1.18134453e+03f, -2.18913373e-05f, 1.30656109e+00f }, + { -5.00279505e+02f, -4.59745390e-06f, 1.09090465e+00f }, +}; + +ccl_static_constant float blackbody_table_b[6][4] = { + { 0.0f, 0.0f, 0.0f, 0.0f }, /* zeros should be optimized by compiler */ + { 0.0f, 0.0f, 0.0f, 0.0f }, + { 0.0f, 0.0f, 0.0f, 0.0f }, + { -2.02524603e-11f, 1.79435860e-07f, -2.60561875e-04f, -1.41761141e-02f }, + { -2.22463426e-13f, -1.55078698e-08f, 3.81675160e-04f, -7.30646033e-01f }, + { 6.72595954e-13f, -2.73059993e-08f, 4.24068546e-04f, -7.52204323e-01f }, +}; + + +ccl_device float3 svm_math_blackbody_color(float t) +{ if(t >= 12000.0f) { return make_float3(0.826270103f, 0.994478524f, 1.56626022f); } - else if(t >= 6365.0f) { - i = 5; - } - else if(t >= 3315.0f) { - i = 4; - } - else if(t >= 1902.0f) { - i = 3; - } - else if(t >= 1449.0f) { - i = 2; - } - else if(t >= 1167.0f) { - i = 1; - } - else if(t >= 965.0f) { - i = 0; - } - else { + else if(t < 965.0f) { /* For 800 <= t < 965 color does not change in OSL implementation, so keep color the same */ return make_float3(4.70366907f, 0.0f, 0.0f); } + int i = (t >= 6365.0f)? 5: + (t >= 3315.0f)? 4: + (t >= 1902.0f)? 3: + (t >= 1449.0f)? 2: + (t >= 1167.0f)? 1: 0; + + ccl_constant float *r = blackbody_table_r[i]; + ccl_constant float *g = blackbody_table_g[i]; + ccl_constant float *b = blackbody_table_b[i]; + const float t_inv = 1.0f / t; - return make_float3(rc[i][0] * t_inv + rc[i][1] * t + rc[i][2], - gc[i][0] * t_inv + gc[i][1] * t + gc[i][2], - ((bc[i][0] * t + bc[i][1]) * t + bc[i][2]) * t + bc[i][3]); + return make_float3(r[0] * t_inv + r[1] * t + r[2], + g[0] * t_inv + g[1] * t + g[2], + ((b[0] * t + b[1]) * t + b[2]) * t + b[3]); } ccl_device_inline float3 svm_math_gamma_color(float3 color, float gamma) diff --git a/intern/cycles/kernel/svm/svm_wavelength.h b/intern/cycles/kernel/svm/svm_wavelength.h index 57030f3979d..855b356b397 100644 --- a/intern/cycles/kernel/svm/svm_wavelength.h +++ b/intern/cycles/kernel/svm/svm_wavelength.h @@ -34,44 +34,44 @@ CCL_NAMESPACE_BEGIN /* Wavelength to RGB */ +// CIE colour matching functions xBar, yBar, and zBar for +// wavelengths from 380 through 780 nanometers, every 5 +// nanometers. For a wavelength lambda in this range: +// cie_colour_match[(lambda - 380) / 5][0] = xBar +// cie_colour_match[(lambda - 380) / 5][1] = yBar +// cie_colour_match[(lambda - 380) / 5][2] = zBar +ccl_static_constant float cie_colour_match[81][3] = { + {0.0014f,0.0000f,0.0065f}, {0.0022f,0.0001f,0.0105f}, {0.0042f,0.0001f,0.0201f}, + {0.0076f,0.0002f,0.0362f}, {0.0143f,0.0004f,0.0679f}, {0.0232f,0.0006f,0.1102f}, + {0.0435f,0.0012f,0.2074f}, {0.0776f,0.0022f,0.3713f}, {0.1344f,0.0040f,0.6456f}, + {0.2148f,0.0073f,1.0391f}, {0.2839f,0.0116f,1.3856f}, {0.3285f,0.0168f,1.6230f}, + {0.3483f,0.0230f,1.7471f}, {0.3481f,0.0298f,1.7826f}, {0.3362f,0.0380f,1.7721f}, + {0.3187f,0.0480f,1.7441f}, {0.2908f,0.0600f,1.6692f}, {0.2511f,0.0739f,1.5281f}, + {0.1954f,0.0910f,1.2876f}, {0.1421f,0.1126f,1.0419f}, {0.0956f,0.1390f,0.8130f}, + {0.0580f,0.1693f,0.6162f}, {0.0320f,0.2080f,0.4652f}, {0.0147f,0.2586f,0.3533f}, + {0.0049f,0.3230f,0.2720f}, {0.0024f,0.4073f,0.2123f}, {0.0093f,0.5030f,0.1582f}, + {0.0291f,0.6082f,0.1117f}, {0.0633f,0.7100f,0.0782f}, {0.1096f,0.7932f,0.0573f}, + {0.1655f,0.8620f,0.0422f}, {0.2257f,0.9149f,0.0298f}, {0.2904f,0.9540f,0.0203f}, + {0.3597f,0.9803f,0.0134f}, {0.4334f,0.9950f,0.0087f}, {0.5121f,1.0000f,0.0057f}, + {0.5945f,0.9950f,0.0039f}, {0.6784f,0.9786f,0.0027f}, {0.7621f,0.9520f,0.0021f}, + {0.8425f,0.9154f,0.0018f}, {0.9163f,0.8700f,0.0017f}, {0.9786f,0.8163f,0.0014f}, + {1.0263f,0.7570f,0.0011f}, {1.0567f,0.6949f,0.0010f}, {1.0622f,0.6310f,0.0008f}, + {1.0456f,0.5668f,0.0006f}, {1.0026f,0.5030f,0.0003f}, {0.9384f,0.4412f,0.0002f}, + {0.8544f,0.3810f,0.0002f}, {0.7514f,0.3210f,0.0001f}, {0.6424f,0.2650f,0.0000f}, + {0.5419f,0.2170f,0.0000f}, {0.4479f,0.1750f,0.0000f}, {0.3608f,0.1382f,0.0000f}, + {0.2835f,0.1070f,0.0000f}, {0.2187f,0.0816f,0.0000f}, {0.1649f,0.0610f,0.0000f}, + {0.1212f,0.0446f,0.0000f}, {0.0874f,0.0320f,0.0000f}, {0.0636f,0.0232f,0.0000f}, + {0.0468f,0.0170f,0.0000f}, {0.0329f,0.0119f,0.0000f}, {0.0227f,0.0082f,0.0000f}, + {0.0158f,0.0057f,0.0000f}, {0.0114f,0.0041f,0.0000f}, {0.0081f,0.0029f,0.0000f}, + {0.0058f,0.0021f,0.0000f}, {0.0041f,0.0015f,0.0000f}, {0.0029f,0.0010f,0.0000f}, + {0.0020f,0.0007f,0.0000f}, {0.0014f,0.0005f,0.0000f}, {0.0010f,0.0004f,0.0000f}, + {0.0007f,0.0002f,0.0000f}, {0.0005f,0.0002f,0.0000f}, {0.0003f,0.0001f,0.0000f}, + {0.0002f,0.0001f,0.0000f}, {0.0002f,0.0001f,0.0000f}, {0.0001f,0.0000f,0.0000f}, + {0.0001f,0.0000f,0.0000f}, {0.0001f,0.0000f,0.0000f}, {0.0000f,0.0000f,0.0000f} +}; + ccl_device void svm_node_wavelength(ShaderData *sd, float *stack, uint wavelength, uint color_out) { - // CIE colour matching functions xBar, yBar, and zBar for - // wavelengths from 380 through 780 nanometers, every 5 - // nanometers. For a wavelength lambda in this range: - // cie_colour_match[(lambda - 380) / 5][0] = xBar - // cie_colour_match[(lambda - 380) / 5][1] = yBar - // cie_colour_match[(lambda - 380) / 5][2] = zBar - const float cie_colour_match[81][3] = { - {0.0014f,0.0000f,0.0065f}, {0.0022f,0.0001f,0.0105f}, {0.0042f,0.0001f,0.0201f}, - {0.0076f,0.0002f,0.0362f}, {0.0143f,0.0004f,0.0679f}, {0.0232f,0.0006f,0.1102f}, - {0.0435f,0.0012f,0.2074f}, {0.0776f,0.0022f,0.3713f}, {0.1344f,0.0040f,0.6456f}, - {0.2148f,0.0073f,1.0391f}, {0.2839f,0.0116f,1.3856f}, {0.3285f,0.0168f,1.6230f}, - {0.3483f,0.0230f,1.7471f}, {0.3481f,0.0298f,1.7826f}, {0.3362f,0.0380f,1.7721f}, - {0.3187f,0.0480f,1.7441f}, {0.2908f,0.0600f,1.6692f}, {0.2511f,0.0739f,1.5281f}, - {0.1954f,0.0910f,1.2876f}, {0.1421f,0.1126f,1.0419f}, {0.0956f,0.1390f,0.8130f}, - {0.0580f,0.1693f,0.6162f}, {0.0320f,0.2080f,0.4652f}, {0.0147f,0.2586f,0.3533f}, - {0.0049f,0.3230f,0.2720f}, {0.0024f,0.4073f,0.2123f}, {0.0093f,0.5030f,0.1582f}, - {0.0291f,0.6082f,0.1117f}, {0.0633f,0.7100f,0.0782f}, {0.1096f,0.7932f,0.0573f}, - {0.1655f,0.8620f,0.0422f}, {0.2257f,0.9149f,0.0298f}, {0.2904f,0.9540f,0.0203f}, - {0.3597f,0.9803f,0.0134f}, {0.4334f,0.9950f,0.0087f}, {0.5121f,1.0000f,0.0057f}, - {0.5945f,0.9950f,0.0039f}, {0.6784f,0.9786f,0.0027f}, {0.7621f,0.9520f,0.0021f}, - {0.8425f,0.9154f,0.0018f}, {0.9163f,0.8700f,0.0017f}, {0.9786f,0.8163f,0.0014f}, - {1.0263f,0.7570f,0.0011f}, {1.0567f,0.6949f,0.0010f}, {1.0622f,0.6310f,0.0008f}, - {1.0456f,0.5668f,0.0006f}, {1.0026f,0.5030f,0.0003f}, {0.9384f,0.4412f,0.0002f}, - {0.8544f,0.3810f,0.0002f}, {0.7514f,0.3210f,0.0001f}, {0.6424f,0.2650f,0.0000f}, - {0.5419f,0.2170f,0.0000f}, {0.4479f,0.1750f,0.0000f}, {0.3608f,0.1382f,0.0000f}, - {0.2835f,0.1070f,0.0000f}, {0.2187f,0.0816f,0.0000f}, {0.1649f,0.0610f,0.0000f}, - {0.1212f,0.0446f,0.0000f}, {0.0874f,0.0320f,0.0000f}, {0.0636f,0.0232f,0.0000f}, - {0.0468f,0.0170f,0.0000f}, {0.0329f,0.0119f,0.0000f}, {0.0227f,0.0082f,0.0000f}, - {0.0158f,0.0057f,0.0000f}, {0.0114f,0.0041f,0.0000f}, {0.0081f,0.0029f,0.0000f}, - {0.0058f,0.0021f,0.0000f}, {0.0041f,0.0015f,0.0000f}, {0.0029f,0.0010f,0.0000f}, - {0.0020f,0.0007f,0.0000f}, {0.0014f,0.0005f,0.0000f}, {0.0010f,0.0004f,0.0000f}, - {0.0007f,0.0002f,0.0000f}, {0.0005f,0.0002f,0.0000f}, {0.0003f,0.0001f,0.0000f}, - {0.0002f,0.0001f,0.0000f}, {0.0002f,0.0001f,0.0000f}, {0.0001f,0.0000f,0.0000f}, - {0.0001f,0.0000f,0.0000f}, {0.0001f,0.0000f,0.0000f}, {0.0000f,0.0000f,0.0000f} - }; - float lambda_nm = stack_load_float(stack, wavelength); float ii = (lambda_nm-380.0f) * (1.0f/5.0f); // scaled 0..80 int i = float_to_int(ii); @@ -82,7 +82,7 @@ ccl_device void svm_node_wavelength(ShaderData *sd, float *stack, uint wavelengt } else { ii -= i; - const float *c = cie_colour_match[i]; + ccl_constant float *c = cie_colour_match[i]; color = interp(make_float3(c[0], c[1], c[2]), make_float3(c[3], c[4], c[5]), ii); } @@ -92,8 +92,7 @@ ccl_device void svm_node_wavelength(ShaderData *sd, float *stack, uint wavelengt /* Clamp to zero if values are smaller */ color = max(color, make_float3(0.0f, 0.0f, 0.0f)); - if(stack_valid(color_out)) - stack_store_float3(stack, color_out, color); + stack_store_float3(stack, color_out, color); } CCL_NAMESPACE_END |