diff options
Diffstat (limited to 'intern/cycles/kernel/svm/svm_math_util.h')
| -rw-r--r-- | intern/cycles/kernel/svm/svm_math_util.h | 269 |
1 files changed, 134 insertions, 135 deletions
diff --git a/intern/cycles/kernel/svm/svm_math_util.h b/intern/cycles/kernel/svm/svm_math_util.h index 669b174e4a3..e3544515f1b 100644 --- a/intern/cycles/kernel/svm/svm_math_util.h +++ b/intern/cycles/kernel/svm/svm_math_util.h @@ -18,96 +18,97 @@ CCL_NAMESPACE_BEGIN ccl_device float average_fac(float3 v) { - return (fabsf(v.x) + fabsf(v.y) + fabsf(v.z))/3.0f; + return (fabsf(v.x) + fabsf(v.y) + fabsf(v.z)) / 3.0f; } -ccl_device void svm_vector_math(float *Fac, float3 *Vector, NodeVectorMath type, float3 Vector1, float3 Vector2) +ccl_device void svm_vector_math( + float *Fac, float3 *Vector, NodeVectorMath type, float3 Vector1, float3 Vector2) { - if(type == NODE_VECTOR_MATH_ADD) { - *Vector = Vector1 + Vector2; - *Fac = average_fac(*Vector); - } - else if(type == NODE_VECTOR_MATH_SUBTRACT) { - *Vector = Vector1 - Vector2; - *Fac = average_fac(*Vector); - } - else if(type == NODE_VECTOR_MATH_AVERAGE) { - *Vector = safe_normalize_len(Vector1 + Vector2, Fac); - } - else if(type == NODE_VECTOR_MATH_DOT_PRODUCT) { - *Fac = dot(Vector1, Vector2); - *Vector = make_float3(0.0f, 0.0f, 0.0f); - } - else if(type == NODE_VECTOR_MATH_CROSS_PRODUCT) { - *Vector = safe_normalize_len(cross(Vector1, Vector2), Fac); - } - else if(type == NODE_VECTOR_MATH_NORMALIZE) { - *Vector = safe_normalize_len(Vector1, Fac); - } - else { - *Fac = 0.0f; - *Vector = make_float3(0.0f, 0.0f, 0.0f); - } + if (type == NODE_VECTOR_MATH_ADD) { + *Vector = Vector1 + Vector2; + *Fac = average_fac(*Vector); + } + else if (type == NODE_VECTOR_MATH_SUBTRACT) { + *Vector = Vector1 - Vector2; + *Fac = average_fac(*Vector); + } + else if (type == NODE_VECTOR_MATH_AVERAGE) { + *Vector = safe_normalize_len(Vector1 + Vector2, Fac); + } + else if (type == NODE_VECTOR_MATH_DOT_PRODUCT) { + *Fac = dot(Vector1, Vector2); + *Vector = make_float3(0.0f, 0.0f, 0.0f); + } + else if (type == NODE_VECTOR_MATH_CROSS_PRODUCT) { + *Vector = safe_normalize_len(cross(Vector1, Vector2), Fac); + } + else if (type == NODE_VECTOR_MATH_NORMALIZE) { + *Vector = safe_normalize_len(Vector1, Fac); + } + else { + *Fac = 0.0f; + *Vector = make_float3(0.0f, 0.0f, 0.0f); + } } ccl_device float svm_math(NodeMath type, float Fac1, float Fac2) { - float Fac; - - if(type == NODE_MATH_ADD) - Fac = Fac1 + Fac2; - else if(type == NODE_MATH_SUBTRACT) - Fac = Fac1 - Fac2; - else if(type == NODE_MATH_MULTIPLY) - Fac = Fac1*Fac2; - else if(type == NODE_MATH_DIVIDE) - Fac = safe_divide(Fac1, Fac2); - else if(type == NODE_MATH_SINE) - Fac = sinf(Fac1); - else if(type == NODE_MATH_COSINE) - Fac = cosf(Fac1); - else if(type == NODE_MATH_TANGENT) - Fac = tanf(Fac1); - else if(type == NODE_MATH_ARCSINE) - Fac = safe_asinf(Fac1); - else if(type == NODE_MATH_ARCCOSINE) - Fac = safe_acosf(Fac1); - else if(type == NODE_MATH_ARCTANGENT) - Fac = atanf(Fac1); - else if(type == NODE_MATH_POWER) - Fac = safe_powf(Fac1, Fac2); - else if(type == NODE_MATH_LOGARITHM) - Fac = safe_logf(Fac1, Fac2); - else if(type == NODE_MATH_MINIMUM) - Fac = fminf(Fac1, Fac2); - else if(type == NODE_MATH_MAXIMUM) - Fac = fmaxf(Fac1, Fac2); - else if(type == NODE_MATH_ROUND) - Fac = floorf(Fac1 + 0.5f); - else if(type == NODE_MATH_LESS_THAN) - Fac = Fac1 < Fac2; - else if(type == NODE_MATH_GREATER_THAN) - Fac = Fac1 > Fac2; - else if(type == NODE_MATH_MODULO) - Fac = safe_modulo(Fac1, Fac2); - else if(type == NODE_MATH_ABSOLUTE) - Fac = fabsf(Fac1); - else if(type == NODE_MATH_ARCTAN2) - Fac = atan2f(Fac1, Fac2); - else if(type == NODE_MATH_FLOOR) - Fac = floorf(Fac1); - else if(type == NODE_MATH_CEIL) - Fac = ceilf(Fac1); - else if(type == NODE_MATH_FRACT) - Fac = Fac1 - floorf(Fac1); - else if(type == NODE_MATH_SQRT) - Fac = safe_sqrtf(Fac1); - else if(type == NODE_MATH_CLAMP) - Fac = saturate(Fac1); - else - Fac = 0.0f; - - return Fac; + float Fac; + + if (type == NODE_MATH_ADD) + Fac = Fac1 + Fac2; + else if (type == NODE_MATH_SUBTRACT) + Fac = Fac1 - Fac2; + else if (type == NODE_MATH_MULTIPLY) + Fac = Fac1 * Fac2; + else if (type == NODE_MATH_DIVIDE) + Fac = safe_divide(Fac1, Fac2); + else if (type == NODE_MATH_SINE) + Fac = sinf(Fac1); + else if (type == NODE_MATH_COSINE) + Fac = cosf(Fac1); + else if (type == NODE_MATH_TANGENT) + Fac = tanf(Fac1); + else if (type == NODE_MATH_ARCSINE) + Fac = safe_asinf(Fac1); + else if (type == NODE_MATH_ARCCOSINE) + Fac = safe_acosf(Fac1); + else if (type == NODE_MATH_ARCTANGENT) + Fac = atanf(Fac1); + else if (type == NODE_MATH_POWER) + Fac = safe_powf(Fac1, Fac2); + else if (type == NODE_MATH_LOGARITHM) + Fac = safe_logf(Fac1, Fac2); + else if (type == NODE_MATH_MINIMUM) + Fac = fminf(Fac1, Fac2); + else if (type == NODE_MATH_MAXIMUM) + Fac = fmaxf(Fac1, Fac2); + else if (type == NODE_MATH_ROUND) + Fac = floorf(Fac1 + 0.5f); + else if (type == NODE_MATH_LESS_THAN) + Fac = Fac1 < Fac2; + else if (type == NODE_MATH_GREATER_THAN) + Fac = Fac1 > Fac2; + else if (type == NODE_MATH_MODULO) + Fac = safe_modulo(Fac1, Fac2); + else if (type == NODE_MATH_ABSOLUTE) + Fac = fabsf(Fac1); + else if (type == NODE_MATH_ARCTAN2) + Fac = atan2f(Fac1, Fac2); + else if (type == NODE_MATH_FLOOR) + Fac = floorf(Fac1); + else if (type == NODE_MATH_CEIL) + Fac = ceilf(Fac1); + else if (type == NODE_MATH_FRACT) + Fac = Fac1 - floorf(Fac1); + else if (type == NODE_MATH_SQRT) + Fac = safe_sqrtf(Fac1); + else if (type == NODE_MATH_CLAMP) + Fac = saturate(Fac1); + else + Fac = 0.0f; + + return Fac; } /* Calculate color in range 800..12000 using an approximation @@ -117,74 +118,72 @@ ccl_device float svm_math(NodeMath type, float Fac1, float Fac2) */ 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 }, + {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 }, + {-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 }, + {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) { - /* TODO(lukas): Reimplement in XYZ. */ - - if(t >= 12000.0f) { - return make_float3(0.826270103f, 0.994478524f, 1.56626022f); - } - 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(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]); + /* TODO(lukas): Reimplement in XYZ. */ + + if (t >= 12000.0f) { + return make_float3(0.826270103f, 0.994478524f, 1.56626022f); + } + 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(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) { - if(gamma == 0.0f) - return make_float3(1.0f, 1.0f, 1.0f); + if (gamma == 0.0f) + return make_float3(1.0f, 1.0f, 1.0f); - if(color.x > 0.0f) - color.x = powf(color.x, gamma); - if(color.y > 0.0f) - color.y = powf(color.y, gamma); - if(color.z > 0.0f) - color.z = powf(color.z, gamma); + if (color.x > 0.0f) + color.x = powf(color.x, gamma); + if (color.y > 0.0f) + color.y = powf(color.y, gamma); + if (color.z > 0.0f) + color.z = powf(color.z, gamma); - return color; + return color; } CCL_NAMESPACE_END |