diff options
author | OmarSquircleArt <omar.squircleart@gmail.com> | 2019-08-13 23:22:15 +0300 |
---|---|---|
committer | OmarSquircleArt <omar.squircleart@gmail.com> | 2019-08-13 23:22:15 +0300 |
commit | 313b78928970a82ab547b07f21f04fc032491ca1 (patch) | |
tree | 465c6aec1df0c6b8b0894a238fd4792dd3977dc9 /intern/cycles | |
parent | 42798a5ca16154c9ecaf5a2359bd0b4fbe9dec94 (diff) |
Shading: Add Clamp node to Cycles and EEVEE.
This patch adds a new node that clamps a value between a maximum and
a minimum values.
Reviewers: brecht
Differential Revision: https://developer.blender.org/D5476
Diffstat (limited to 'intern/cycles')
-rw-r--r-- | intern/cycles/blender/blender_shader.cpp | 3 | ||||
-rw-r--r-- | intern/cycles/kernel/CMakeLists.txt | 1 | ||||
-rw-r--r-- | intern/cycles/kernel/shaders/CMakeLists.txt | 1 | ||||
-rw-r--r-- | intern/cycles/kernel/shaders/node_clamp.osl | 23 | ||||
-rw-r--r-- | intern/cycles/kernel/svm/svm.h | 4 | ||||
-rw-r--r-- | intern/cycles/kernel/svm/svm_clamp.h | 41 | ||||
-rw-r--r-- | intern/cycles/kernel/svm/svm_types.h | 1 | ||||
-rw-r--r-- | intern/cycles/render/nodes.cpp | 50 | ||||
-rw-r--r-- | intern/cycles/render/nodes.h | 11 |
9 files changed, 135 insertions, 0 deletions
diff --git a/intern/cycles/blender/blender_shader.cpp b/intern/cycles/blender/blender_shader.cpp index dc0563c3bb8..b1c61c2fa8c 100644 --- a/intern/cycles/blender/blender_shader.cpp +++ b/intern/cycles/blender/blender_shader.cpp @@ -318,6 +318,9 @@ static ShaderNode *add_node(Scene *scene, else if (b_node.is_a(&RNA_ShaderNodeMapRange)) { node = new MapRangeNode(); } + else if (b_node.is_a(&RNA_ShaderNodeClamp)) { + node = new ClampNode(); + } else if (b_node.is_a(&RNA_ShaderNodeMath)) { BL::ShaderNodeMath b_math_node(b_node); MathNode *math = new MathNode(); diff --git a/intern/cycles/kernel/CMakeLists.txt b/intern/cycles/kernel/CMakeLists.txt index 2078b1a8f4e..ab05d6ee1e9 100644 --- a/intern/cycles/kernel/CMakeLists.txt +++ b/intern/cycles/kernel/CMakeLists.txt @@ -179,6 +179,7 @@ set(SRC_SVM_HEADERS svm/svm_blackbody.h svm/svm_bump.h svm/svm_camera.h + svm/svm_clamp.h svm/svm_closure.h svm/svm_convert.h svm/svm_checker.h diff --git a/intern/cycles/kernel/shaders/CMakeLists.txt b/intern/cycles/kernel/shaders/CMakeLists.txt index 2a84d89f9be..63cef6e841b 100644 --- a/intern/cycles/kernel/shaders/CMakeLists.txt +++ b/intern/cycles/kernel/shaders/CMakeLists.txt @@ -13,6 +13,7 @@ set(SRC_OSL node_bump.osl node_camera.osl node_checker_texture.osl + node_clamp.osl node_combine_rgb.osl node_combine_hsv.osl node_combine_xyz.osl diff --git a/intern/cycles/kernel/shaders/node_clamp.osl b/intern/cycles/kernel/shaders/node_clamp.osl new file mode 100644 index 00000000000..43b0fe88172 --- /dev/null +++ b/intern/cycles/kernel/shaders/node_clamp.osl @@ -0,0 +1,23 @@ +/* + * Copyright 2011-2013 Blender Foundation + * + * 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. + */ + +#include "stdosl.h" + +shader node_clamp(float Value = 1.0, float Min = 0.0, float Max = 1.0, + output float Result = 0.0) +{ + Result = clamp(Value, Min, Max); +} diff --git a/intern/cycles/kernel/svm/svm.h b/intern/cycles/kernel/svm/svm.h index e0c2c8b56dc..0d731d62e94 100644 --- a/intern/cycles/kernel/svm/svm.h +++ b/intern/cycles/kernel/svm/svm.h @@ -193,6 +193,7 @@ CCL_NAMESPACE_END #include "kernel/svm/svm_voxel.h" #include "kernel/svm/svm_bump.h" #include "kernel/svm/svm_map_range.h" +#include "kernel/svm/svm_clamp.h" #ifdef __SHADER_RAYTRACE__ # include "kernel/svm/svm_ao.h" @@ -490,6 +491,9 @@ ccl_device_noinline void svm_eval_nodes(KernelGlobals *kg, case NODE_MAP_RANGE: svm_node_map_range(kg, sd, stack, node.y, node.z, node.w, &offset); break; + case NODE_CLAMP: + svm_node_clamp(kg, sd, stack, node.y, node.z, node.w, &offset); + break; # endif /* __EXTRA_NODES__ */ # if NODES_FEATURE(NODE_FEATURE_VOLUME) case NODE_TEX_VOXEL: diff --git a/intern/cycles/kernel/svm/svm_clamp.h b/intern/cycles/kernel/svm/svm_clamp.h new file mode 100644 index 00000000000..5ff4a599028 --- /dev/null +++ b/intern/cycles/kernel/svm/svm_clamp.h @@ -0,0 +1,41 @@ +/* + * Copyright 2011-2013 Blender Foundation + * + * 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. + */ + +CCL_NAMESPACE_BEGIN + +/* Clamp Node */ + +ccl_device void svm_node_clamp(KernelGlobals *kg, + ShaderData *sd, + float *stack, + uint value_stack_offset, + uint parameters_stack_offsets, + uint result_stack_offset, + int *offset) +{ + uint min_stack_offset, max_stack_offset; + decode_node_uchar4(parameters_stack_offsets, &min_stack_offset, &max_stack_offset, NULL, NULL); + + uint4 defaults = read_node(kg, offset); + + float value = stack_load_float(stack, value_stack_offset); + float min = stack_load_float_default(stack, min_stack_offset, defaults.x); + float max = stack_load_float_default(stack, max_stack_offset, defaults.y); + + stack_store_float(stack, result_stack_offset, clamp(value, min, max)); +} + +CCL_NAMESPACE_END diff --git a/intern/cycles/kernel/svm/svm_types.h b/intern/cycles/kernel/svm/svm_types.h index 82e7e94d438..9a8a5401297 100644 --- a/intern/cycles/kernel/svm/svm_types.h +++ b/intern/cycles/kernel/svm/svm_types.h @@ -139,6 +139,7 @@ typedef enum ShaderNodeType { NODE_PRINCIPLED_VOLUME, NODE_IES, NODE_MAP_RANGE, + NODE_CLAMP, } ShaderNodeType; typedef enum NodeAttributeType { diff --git a/intern/cycles/render/nodes.cpp b/intern/cycles/render/nodes.cpp index 0f054b42088..18a7180c446 100644 --- a/intern/cycles/render/nodes.cpp +++ b/intern/cycles/render/nodes.cpp @@ -5328,6 +5328,56 @@ void MapRangeNode::compile(OSLCompiler &compiler) compiler.add(this, "node_map_range"); } +/* Clamp Node */ + +NODE_DEFINE(ClampNode) +{ + NodeType *type = NodeType::add("clamp", create, NodeType::SHADER); + + SOCKET_IN_FLOAT(value, "Value", 1.0f); + SOCKET_IN_FLOAT(min, "Min", 0.0f); + SOCKET_IN_FLOAT(max, "Max", 1.0f); + + SOCKET_OUT_FLOAT(result, "Result"); + + return type; +} + +ClampNode::ClampNode() : ShaderNode(node_type) +{ +} + +void ClampNode::constant_fold(const ConstantFolder &folder) +{ + if (folder.all_inputs_constant()) { + folder.make_constant(clamp(value, min, max)); + } +} + +void ClampNode::compile(SVMCompiler &compiler) +{ + ShaderInput *value_in = input("Value"); + ShaderInput *min_in = input("Min"); + ShaderInput *max_in = input("Max"); + ShaderOutput *result_out = output("Result"); + + int value_stack_offset = compiler.stack_assign(value_in); + int min_stack_offset = compiler.stack_assign(min_in); + int max_stack_offset = compiler.stack_assign(max_in); + int result_stack_offset = compiler.stack_assign(result_out); + + compiler.add_node(NODE_CLAMP, + value_stack_offset, + compiler.encode_uchar4(min_stack_offset, max_stack_offset), + result_stack_offset); + compiler.add_node(__float_as_int(min), __float_as_int(max)); +} + +void ClampNode::compile(OSLCompiler &compiler) +{ + compiler.add(this, "node_clamp"); +} + /* Math */ NODE_DEFINE(MathNode) diff --git a/intern/cycles/render/nodes.h b/intern/cycles/render/nodes.h index 13c096a00c2..9ac42ffc76c 100644 --- a/intern/cycles/render/nodes.h +++ b/intern/cycles/render/nodes.h @@ -1239,6 +1239,17 @@ class MapRangeNode : public ShaderNode { float value, from_min, from_max, to_min, to_max; }; +class ClampNode : public ShaderNode { + public: + SHADER_NODE_CLASS(ClampNode) + void constant_fold(const ConstantFolder &folder); + virtual int get_group() + { + return NODE_GROUP_LEVEL_3; + } + float value, min, max; +}; + class MathNode : public ShaderNode { public: SHADER_NODE_CLASS(MathNode) |