diff options
author | Dalai Felinto <dfelinto@gmail.com> | 2011-12-17 00:35:06 +0400 |
---|---|---|
committer | Dalai Felinto <dfelinto@gmail.com> | 2011-12-17 00:35:06 +0400 |
commit | 2a6fdbcccdb285664d921d59f66f96d0345124de (patch) | |
tree | 3d7b8d41a05318d43821efe43548ac8df5162d78 /intern | |
parent | 3311164b24da61f2967f96d0ee27508a7e2e0267 (diff) |
Cycles Gamma Node
Node specially useful for Texture correction.
This is also a nice example of a simple node made from scratch in case someone wants to create their custom nodes.
Review by Brecht.
Diffstat (limited to 'intern')
-rw-r--r-- | intern/cycles/app/cycles_xml.cpp | 3 | ||||
-rw-r--r-- | intern/cycles/blender/blender_shader.cpp | 4 | ||||
-rw-r--r-- | intern/cycles/kernel/CMakeLists.txt | 1 | ||||
-rw-r--r-- | intern/cycles/kernel/osl/nodes/CMakeLists.txt | 1 | ||||
-rw-r--r-- | intern/cycles/kernel/osl/nodes/node_gamma.osl | 33 | ||||
-rw-r--r-- | intern/cycles/kernel/svm/svm.h | 4 | ||||
-rw-r--r-- | intern/cycles/kernel/svm/svm_gamma.h | 37 | ||||
-rw-r--r-- | intern/cycles/kernel/svm/svm_types.h | 3 | ||||
-rw-r--r-- | intern/cycles/render/nodes.cpp | 27 | ||||
-rw-r--r-- | intern/cycles/render/nodes.h | 5 |
10 files changed, 117 insertions, 1 deletions
diff --git a/intern/cycles/app/cycles_xml.cpp b/intern/cycles/app/cycles_xml.cpp index a0282988179..f5cc01cd062 100644 --- a/intern/cycles/app/cycles_xml.cpp +++ b/intern/cycles/app/cycles_xml.cpp @@ -446,6 +446,9 @@ static void xml_read_shader_graph(const XMLReadState& state, Shader *shader, pug xml_read_enum(&mix->type, MixNode::type_enum, node, "type"); snode = mix; } + else if(string_iequals(node.name(), "gamma")) { + snode = new GammaNode(); + } else if(string_iequals(node.name(), "combine_rgb")) { snode = new CombineRGBNode(); } diff --git a/intern/cycles/blender/blender_shader.cpp b/intern/cycles/blender/blender_shader.cpp index 4191fef4dcd..ecc85a92ae0 100644 --- a/intern/cycles/blender/blender_shader.cpp +++ b/intern/cycles/blender/blender_shader.cpp @@ -160,6 +160,10 @@ static ShaderNode *add_node(BL::BlendData b_data, ShaderGraph *graph, BL::Node * node = new InvertNode(); break; } + case BL::ShaderNode::type_GAMMA: { + node = new GammaNode(); + break; + } case BL::ShaderNode::type_MIX_RGB: { BL::ShaderNodeMixRGB b_mix_node(b_node); MixNode *mix = new MixNode(); diff --git a/intern/cycles/kernel/CMakeLists.txt b/intern/cycles/kernel/CMakeLists.txt index 65338eeea6e..e17544bf7af 100644 --- a/intern/cycles/kernel/CMakeLists.txt +++ b/intern/cycles/kernel/CMakeLists.txt @@ -59,6 +59,7 @@ set(SRC_SVM_HEADERS svm/svm_convert.h svm/svm_displace.h svm/svm_fresnel.h + svm/svm_gamma.h svm/svm_geometry.h svm/svm_gradient.h svm/svm_hsv.h diff --git a/intern/cycles/kernel/osl/nodes/CMakeLists.txt b/intern/cycles/kernel/osl/nodes/CMakeLists.txt index 5c1fd8b75d8..1a207d6c139 100644 --- a/intern/cycles/kernel/osl/nodes/CMakeLists.txt +++ b/intern/cycles/kernel/osl/nodes/CMakeLists.txt @@ -19,6 +19,7 @@ set(SRC_OSL node_emission.osl node_environment_texture.osl node_fresnel.osl + node_gamma.osl node_geometry.osl node_glass_bsdf.osl node_glossy_bsdf.osl diff --git a/intern/cycles/kernel/osl/nodes/node_gamma.osl b/intern/cycles/kernel/osl/nodes/node_gamma.osl new file mode 100644 index 00000000000..4dae07d70bc --- /dev/null +++ b/intern/cycles/kernel/osl/nodes/node_gamma.osl @@ -0,0 +1,33 @@ +/* + * Copyright 2011, Blender Foundation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "stdosl.h" + +shader node_gamma( + color ColorIn = color(0.8, 0.8, 0.8), + float Gamma = 1.0, + output ColorOut = color(0.8, 0.8, 0.8) +{ + int i; + for (i=0;i<3;i++) { + if (ColorIn[i] > 0.0) + ColorIn[i] = powf(ColorIn[i], Gamma); + } + + ColorOut = ColorIn; +} diff --git a/intern/cycles/kernel/svm/svm.h b/intern/cycles/kernel/svm/svm.h index 2beff7ff7e6..5a8d6d62c79 100644 --- a/intern/cycles/kernel/svm/svm.h +++ b/intern/cycles/kernel/svm/svm.h @@ -130,6 +130,7 @@ CCL_NAMESPACE_END #include "svm_geometry.h" #include "svm_hsv.h" #include "svm_image.h" +#include "svm_gamma.h" #include "svm_invert.h" #include "svm_light_path.h" #include "svm_magic.h" @@ -262,6 +263,9 @@ __device_noinline void svm_eval_nodes(KernelGlobals *kg, ShaderData *sd, ShaderT case NODE_INVERT: svm_node_invert(sd, stack, node.y, node.z, node.w); break; + case NODE_GAMMA: + svm_node_gamma(sd, stack, node.y, node.z, node.w); + break; case NODE_MIX: svm_node_mix(kg, sd, stack, node.y, node.z, node.w, &offset); break; diff --git a/intern/cycles/kernel/svm/svm_gamma.h b/intern/cycles/kernel/svm/svm_gamma.h new file mode 100644 index 00000000000..4a8967011c7 --- /dev/null +++ b/intern/cycles/kernel/svm/svm_gamma.h @@ -0,0 +1,37 @@ +/* + * Copyright 2011, Blender Foundation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +CCL_NAMESPACE_BEGIN + +__device void svm_node_gamma(ShaderData *sd, float *stack, uint in_gamma, uint in_color, uint out_color) +{ + float3 color = stack_load_float3(stack, in_color); + float gamma = stack_load_float(stack, in_gamma); + + if (color.x > 0.0) + color.x = powf(color.x, gamma); + if (color.y > 0.0) + color.y = powf(color.y, gamma); + if (color.z > 0.0) + color.z = powf(color.z, gamma); + + if (stack_valid(out_color)) + stack_store_float3(stack, out_color, color); +} + +CCL_NAMESPACE_END diff --git a/intern/cycles/kernel/svm/svm_types.h b/intern/cycles/kernel/svm/svm_types.h index e5e3175761b..c46df3f08c8 100644 --- a/intern/cycles/kernel/svm/svm_types.h +++ b/intern/cycles/kernel/svm/svm_types.h @@ -85,7 +85,8 @@ typedef enum NodeType { NODE_HSV = 5200, NODE_CAMERA = 5300, NODE_INVERT = 5400, - NODE_NORMAL = 5500 + NODE_NORMAL = 5500, + NODE_GAMMA = 5600 } NodeType; typedef enum NodeAttributeType { diff --git a/intern/cycles/render/nodes.cpp b/intern/cycles/render/nodes.cpp index aec6f1f3e26..5cabb248709 100644 --- a/intern/cycles/render/nodes.cpp +++ b/intern/cycles/render/nodes.cpp @@ -1726,6 +1726,33 @@ void CombineRGBNode::compile(OSLCompiler& compiler) compiler.add(this, "node_combine_rgb"); } +/* Gamma */ +GammaNode::GammaNode() +: ShaderNode("gamma") +{ + add_input("Color", SHADER_SOCKET_COLOR); + add_input("Gamma", SHADER_SOCKET_FLOAT); + add_output("Color", SHADER_SOCKET_COLOR); +} + +void GammaNode::compile(SVMCompiler& compiler) +{ + ShaderInput *color_in = input("Color"); + ShaderInput *gamma_in = input("Gamma"); + ShaderOutput *color_out = output("Color"); + + compiler.stack_assign(color_in); + compiler.stack_assign(gamma_in); + compiler.stack_assign(color_out); + + compiler.add_node(NODE_GAMMA, gamma_in->stack_offset, color_in->stack_offset, color_out->stack_offset); +} + +void GammaNode::compile(OSLCompiler& compiler) +{ + compiler.add(this, "node_gamma"); +} + /* Separate RGB */ SeparateRGBNode::SeparateRGBNode() : ShaderNode("separate_rgb") diff --git a/intern/cycles/render/nodes.h b/intern/cycles/render/nodes.h index 9d947de1af5..28fff22fc34 100644 --- a/intern/cycles/render/nodes.h +++ b/intern/cycles/render/nodes.h @@ -302,6 +302,11 @@ public: SHADER_NODE_CLASS(CombineRGBNode) }; +class GammaNode : public ShaderNode { +public: + SHADER_NODE_CLASS(GammaNode) +}; + class SeparateRGBNode : public ShaderNode { public: SHADER_NODE_CLASS(SeparateRGBNode) |