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test/intern/cycles/kernel/osl/shaders/node_math.osl

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License headers: use SPDX-FileCopyrightText for *.inl and *.osl files
2023-08-04 13:24:17 +10:00
/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
*
* SPDX-License-Identifier: Apache-2.0 */
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
Shading: Extend Vector Math Node with Sin, Cos, Tan and Wrap functions This adds some extra functions recently added to the float Maths Node. Not all functions have been ported over in this patch. Also: + Tidy up menu + Change node color to match other vector nodes, this helps distinguish vector and float nodes in the tree + Move shared OSL functions to new header node_math.h Reviewed By: brecht Differential Revision: https://developer.blender.org/D6713
2020-02-14 21:46:10 +00:00
#include "node_math.h"
Cleanup: `make format` after SortedIncludes change
2020-03-19 09:33:03 +01:00
#include "stdcycles.h"
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
Shading: Refactor Math node and use dynamic inputs. - Implement dynamic inputs. The second input is now unavailable in single operand math operators. - Reimplemenet the clamp option using graph expansion for Cycles. - Clean up code and unify naming between Blender and Cycles. - Remove unused code. Reviewers: brecht Differential Revision: https://developer.blender.org/D5481
2019-08-18 11:16:04 +02:00
/* OSL asin, acos, and pow functions are safe by default. */
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
shader node_math(string math_type = "add",
Shading: Refactor Math node and use dynamic inputs. - Implement dynamic inputs. The second input is now unavailable in single operand math operators. - Reimplemenet the clamp option using graph expansion for Cycles. - Clean up code and unify naming between Blender and Cycles. - Remove unused code. Reviewers: brecht Differential Revision: https://developer.blender.org/D5481
2019-08-18 11:16:04 +02:00
float Value1 = 0.5,
float Value2 = 0.5,
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
float Value3 = 0.5,
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
output float Value = 0.0)
{
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
if (math_type == "add")
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
Value = Value1 + Value2;
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "subtract")
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
Value = Value1 - Value2;
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "multiply")
style cleanup: make OSL follow our C style convention. http://wiki.blender.org/index.php/Dev:Doc/CodeStyle
2012-10-17 01:47:37 +00:00
Value = Value1 * Value2;
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "divide")
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
Value = safe_divide(Value1, Value2);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "power")
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
Value = pow(Value1, Value2);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "logarithm")
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
Value = safe_log(Value1, Value2);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "sqrt")
Shading: Refactor Math node and use dynamic inputs. - Implement dynamic inputs. The second input is now unavailable in single operand math operators. - Reimplemenet the clamp option using graph expansion for Cycles. - Clean up code and unify naming between Blender and Cycles. - Remove unused code. Reviewers: brecht Differential Revision: https://developer.blender.org/D5481
2019-08-18 11:16:04 +02:00
Value = safe_sqrt(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "inversesqrt")
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
Value = inversesqrt(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "absolute")
Shading: Refactor Math node and use dynamic inputs. - Implement dynamic inputs. The second input is now unavailable in single operand math operators. - Reimplemenet the clamp option using graph expansion for Cycles. - Clean up code and unify naming between Blender and Cycles. - Remove unused code. Reviewers: brecht Differential Revision: https://developer.blender.org/D5481
2019-08-18 11:16:04 +02:00
Value = fabs(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "radians")
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
Value = radians(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "degrees")
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
Value = degrees(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "minimum")
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
Value = min(Value1, Value2);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "maximum")
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
Value = max(Value1, Value2);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "less_than")
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
Value = Value1 < Value2;
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "greater_than")
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
Value = Value1 > Value2;
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "round")
Shading: Refactor Math node and use dynamic inputs. - Implement dynamic inputs. The second input is now unavailable in single operand math operators. - Reimplemenet the clamp option using graph expansion for Cycles. - Clean up code and unify naming between Blender and Cycles. - Remove unused code. Reviewers: brecht Differential Revision: https://developer.blender.org/D5481
2019-08-18 11:16:04 +02:00
Value = floor(Value1 + 0.5);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "floor")
Nodes: add sqrt, ceil, floor and fract to math nodes. This works for Cycles, Eevee, texture nodes and compositing. It helps to reduce the number of math nodes required in various node setups. Differential Revision: https://developer.blender.org/D3537
2018-07-12 23:40:18 +02:00
Value = floor(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "ceil")
Nodes: add sqrt, ceil, floor and fract to math nodes. This works for Cycles, Eevee, texture nodes and compositing. It helps to reduce the number of math nodes required in various node setups. Differential Revision: https://developer.blender.org/D3537
2018-07-12 23:40:18 +02:00
Value = ceil(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "fraction")
Nodes: add sqrt, ceil, floor and fract to math nodes. This works for Cycles, Eevee, texture nodes and compositing. It helps to reduce the number of math nodes required in various node setups. Differential Revision: https://developer.blender.org/D3537
2018-07-12 23:40:18 +02:00
Value = Value1 - floor(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "modulo")
Shading: Refactor Math node and use dynamic inputs. - Implement dynamic inputs. The second input is now unavailable in single operand math operators. - Reimplemenet the clamp option using graph expansion for Cycles. - Clean up code and unify naming between Blender and Cycles. - Remove unused code. Reviewers: brecht Differential Revision: https://developer.blender.org/D5481
2019-08-18 11:16:04 +02:00
Value = safe_modulo(Value1, Value2);
Nodes: add Floored Modulo mode to Math nodes Both the `Math` node and the `Vector Math` currently only explicitly support modulo using truncated division which is oftentimes not the type of modulo desired as it behaves differently for negative numbers and positive numbers. Floored Modulo can be created by either using the `Wrap` operation or a combination of multiple `Math` nodes. However both methods obfuscate the actual intend of the artist and the math operation that is actually used. This patch adds modulo using floored division to the scalar `Math` node, explicitly stating the intended math operation and renames the already existing `"Modulo"` operation to `"Truncated Modulo"` to avoid confusion. Only the ui name is changed, so this should not break compatibility. Pull Request: https://projects.blender.org/blender/blender/pulls/110728
2023-08-08 12:13:00 +02:00
else if (math_type == "floored_modulo")
Value = safe_floored_modulo(Value1, Value2);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "trunc")
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
Value = trunc(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "snap")
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
Value = floor(safe_divide(Value1, Value2)) * Value2;
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "wrap")
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
Value = wrap(Value1, Value2, Value3);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "pingpong")
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
Value = pingpong(Value1, Value2);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "sine")
Shading: Refactor Math node and use dynamic inputs. - Implement dynamic inputs. The second input is now unavailable in single operand math operators. - Reimplemenet the clamp option using graph expansion for Cycles. - Clean up code and unify naming between Blender and Cycles. - Remove unused code. Reviewers: brecht Differential Revision: https://developer.blender.org/D5481
2019-08-18 11:16:04 +02:00
Value = sin(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "cosine")
Shading: Refactor Math node and use dynamic inputs. - Implement dynamic inputs. The second input is now unavailable in single operand math operators. - Reimplemenet the clamp option using graph expansion for Cycles. - Clean up code and unify naming between Blender and Cycles. - Remove unused code. Reviewers: brecht Differential Revision: https://developer.blender.org/D5481
2019-08-18 11:16:04 +02:00
Value = cos(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "tangent")
Shading: Refactor Math node and use dynamic inputs. - Implement dynamic inputs. The second input is now unavailable in single operand math operators. - Reimplemenet the clamp option using graph expansion for Cycles. - Clean up code and unify naming between Blender and Cycles. - Remove unused code. Reviewers: brecht Differential Revision: https://developer.blender.org/D5481
2019-08-18 11:16:04 +02:00
Value = tan(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "sinh")
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
Value = sinh(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "cosh")
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
Value = cosh(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "tanh")
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
Value = tanh(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "arcsine")
Shading: Refactor Math node and use dynamic inputs. - Implement dynamic inputs. The second input is now unavailable in single operand math operators. - Reimplemenet the clamp option using graph expansion for Cycles. - Clean up code and unify naming between Blender and Cycles. - Remove unused code. Reviewers: brecht Differential Revision: https://developer.blender.org/D5481
2019-08-18 11:16:04 +02:00
Value = asin(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "arccosine")
Shading: Refactor Math node and use dynamic inputs. - Implement dynamic inputs. The second input is now unavailable in single operand math operators. - Reimplemenet the clamp option using graph expansion for Cycles. - Clean up code and unify naming between Blender and Cycles. - Remove unused code. Reviewers: brecht Differential Revision: https://developer.blender.org/D5481
2019-08-18 11:16:04 +02:00
Value = acos(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "arctangent")
Shading: Refactor Math node and use dynamic inputs. - Implement dynamic inputs. The second input is now unavailable in single operand math operators. - Reimplemenet the clamp option using graph expansion for Cycles. - Clean up code and unify naming between Blender and Cycles. - Remove unused code. Reviewers: brecht Differential Revision: https://developer.blender.org/D5481
2019-08-18 11:16:04 +02:00
Value = atan(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "arctan2")
Shading: Refactor Math node and use dynamic inputs. - Implement dynamic inputs. The second input is now unavailable in single operand math operators. - Reimplemenet the clamp option using graph expansion for Cycles. - Clean up code and unify naming between Blender and Cycles. - Remove unused code. Reviewers: brecht Differential Revision: https://developer.blender.org/D5481
2019-08-18 11:16:04 +02:00
Value = atan2(Value1, Value2);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "sign")
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
Value = sign(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "exponent")
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
Value = exp(Value1);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "compare")
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
Value = ((Value1 == Value2) || (abs(Value1 - Value2) <= max(Value3, 1e-5))) ? 1.0 : 0.0;
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "multiply_add")
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
Value = Value1 * Value2 + Value3;
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "smoothmin")
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
Value = smoothmin(Value1, Value2, Value3);
Cycles: fix compilation of OSL shaders following API change The names of the parameters are based on those of those of the sockets, so they also need to be updated. This was forgotten about in the previous commit (rBa284e559b90e). Ref T82561.
2020-11-10 18:49:50 +01:00
else if (math_type == "smoothmax")
Maths Node: Additional functions When creating shaders and using maths functions it is expected that Blender should match functions in other DCC applications, game engines and shading languages such as GLSL and OSL. This patch adds missing functions to the Blender maths node. Ideally, it would be nice to have these functions available to vectors too but that is not part of this patch. This patch adds the following functions trunc, snap, wrap, compare, pingpong, sign, radians, degrees, cosh, sinh, tanh, exp, smoothmin and inversesqrt. Sign function is based on GLSL and OSL functions and returns zero when x == 0. Differential Revision: https://developer.blender.org/D5957
2019-12-05 23:02:05 +00:00
Value = -(smoothmin(-Value1, -Value2, Value3));
Shading: Refactor Math node and use dynamic inputs. - Implement dynamic inputs. The second input is now unavailable in single operand math operators. - Reimplemenet the clamp option using graph expansion for Cycles. - Clean up code and unify naming between Blender and Cycles. - Remove unused code. Reviewers: brecht Differential Revision: https://developer.blender.org/D5481
2019-08-18 11:16:04 +02:00
else
warning("%s", "Unknown math operator!");
Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00
}
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