blender/intern/cycles/test/render_graph_finalize_test.cpp
Alexander Gavrilov eb2ee7212e Fix T49136: full constant Curves with zero Fac input crashes in assert.
The if branches were reordered when the original patch was
committed, which broke the implicit non-NULL guarantee on link.

To prevent re-occurrence, add a couple of unit tests.
2016-08-22 11:11:45 +03:00

1580 lines
47 KiB
C++

/*
* Copyright 2011-2016 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 "testing/testing.h"
#include "testing/mock_log.h"
#include "render/graph.h"
#include "render/scene.h"
#include "render/nodes.h"
#include "util/util_logging.h"
#include "util/util_string.h"
#include "util/util_vector.h"
using testing::AnyNumber;
using testing::HasSubstr;
using testing::ScopedMockLog;
using testing::_;
CCL_NAMESPACE_BEGIN
namespace {
template<typename T>
class ShaderNodeBuilder {
public:
ShaderNodeBuilder(const string& name)
: name_(name)
{
node_ = new T();
node_->name = name;
}
const string& name() const {
return name_;
}
ShaderNode *node() const {
return node_;
}
template<typename V>
ShaderNodeBuilder& set(const string& input_name, V value)
{
ShaderInput *input_socket = node_->input(input_name.c_str());
EXPECT_NE((void*)NULL, input_socket);
input_socket->set(value);
return *this;
}
template<typename T2, typename V>
ShaderNodeBuilder& set(V T2::*pfield, V value)
{
static_cast<T*>(node_)->*pfield = value;
return *this;
}
protected:
string name_;
ShaderNode *node_;
};
class ShaderGraphBuilder {
public:
explicit ShaderGraphBuilder(ShaderGraph *graph)
: graph_(graph)
{
node_map_["Output"] = graph->output();
}
ShaderNode *find_node(const string& name)
{
map<string, ShaderNode *>::iterator it = node_map_.find(name);
if(it == node_map_.end()) {
return NULL;
}
return it->second;
}
template<typename T>
ShaderGraphBuilder& add_node(const T& node)
{
EXPECT_EQ(NULL, find_node(node.name()));
graph_->add(node.node());
node_map_[node.name()] = node.node();
return *this;
}
ShaderGraphBuilder& add_connection(const string& from,
const string& to)
{
vector<string> tokens_from, tokens_to;
string_split(tokens_from, from, "::");
string_split(tokens_to, to, "::");
EXPECT_EQ(2, tokens_from.size());
EXPECT_EQ(2, tokens_to.size());
ShaderNode *node_from = find_node(tokens_from[0]),
*node_to = find_node(tokens_to[0]);
EXPECT_NE((void*)NULL, node_from);
EXPECT_NE((void*)NULL, node_to);
EXPECT_NE(node_from, node_to);
ShaderOutput *socket_from = node_from->output(tokens_from[1].c_str());
ShaderInput *socket_to = node_to->input(tokens_to[1].c_str());
EXPECT_NE((void*)NULL, socket_from);
EXPECT_NE((void*)NULL, socket_to);
graph_->connect(socket_from, socket_to);
return *this;
}
/* Common input/output boilerplate. */
ShaderGraphBuilder& add_attribute(const string &name)
{
return (*this)
.add_node(ShaderNodeBuilder<AttributeNode>(name)
.set(&AttributeNode::attribute, ustring(name)));
}
ShaderGraphBuilder& output_closure(const string& from)
{
return (*this).add_connection(from, "Output::Surface");
}
ShaderGraphBuilder& output_color(const string& from)
{
return (*this)
.add_node(ShaderNodeBuilder<EmissionNode>("EmissionNode"))
.add_connection(from, "EmissionNode::Color")
.output_closure("EmissionNode::Emission");
}
ShaderGraphBuilder& output_value(const string& from)
{
return (*this)
.add_node(ShaderNodeBuilder<EmissionNode>("EmissionNode"))
.add_connection(from, "EmissionNode::Strength")
.output_closure("EmissionNode::Emission");
}
protected:
ShaderGraph *graph_;
map<string, ShaderNode *> node_map_;
};
} // namespace
#define DEFINE_COMMON_VARIABLES(builder_name, mock_log_name) \
util_logging_start(); \
util_logging_verbosity_set(1); \
ScopedMockLog mock_log_name; \
DeviceInfo device_info; \
SceneParams scene_params; \
Scene scene(scene_params, device_info); \
ShaderGraph graph; \
ShaderGraphBuilder builder(&graph); \
#define EXPECT_ANY_MESSAGE(log) \
EXPECT_CALL(log, Log(_, _, _)).Times(AnyNumber()); \
#define CORRECT_INFO_MESSAGE(log, message) \
EXPECT_CALL(log, Log(google::INFO, _, HasSubstr(message)));
#define INVALID_INFO_MESSAGE(log, message) \
EXPECT_CALL(log, Log(google::INFO, _, HasSubstr(message))).Times(0);
/*
* Test deduplication of nodes that have inputs, some of them folded.
*/
TEST(render_graph, deduplicate_deep)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Value1::Value to constant (0.8).");
CORRECT_INFO_MESSAGE(log, "Folding Value2::Value to constant (0.8).");
CORRECT_INFO_MESSAGE(log, "Deduplicated 2 nodes.");
builder
.add_node(ShaderNodeBuilder<GeometryNode>("Geometry1"))
.add_node(ShaderNodeBuilder<GeometryNode>("Geometry2"))
.add_node(ShaderNodeBuilder<ValueNode>("Value1")
.set(&ValueNode::value, 0.8f))
.add_node(ShaderNodeBuilder<ValueNode>("Value2")
.set(&ValueNode::value, 0.8f))
.add_node(ShaderNodeBuilder<NoiseTextureNode>("Noise1"))
.add_node(ShaderNodeBuilder<NoiseTextureNode>("Noise2"))
.add_node(ShaderNodeBuilder<MixNode>("Mix")
.set(&MixNode::type, NODE_MIX_BLEND)
.set("Fac", 0.5f))
.add_connection("Geometry1::Parametric", "Noise1::Vector")
.add_connection("Value1::Value", "Noise1::Scale")
.add_connection("Noise1::Color", "Mix::Color1")
.add_connection("Geometry2::Parametric", "Noise2::Vector")
.add_connection("Value2::Value", "Noise2::Scale")
.add_connection("Noise2::Color", "Mix::Color2")
.output_color("Mix::Color");
graph.finalize(&scene);
EXPECT_EQ(graph.nodes.size(), 5);
}
/*
* Test RGB to BW node.
*/
TEST(render_graph, constant_fold_rgb_to_bw)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding RGBToBWNodeNode::Val to constant (0.8).");
CORRECT_INFO_MESSAGE(log, "Folding convert_float_to_color::value_color to constant (0.8, 0.8, 0.8).");
builder
.add_node(ShaderNodeBuilder<RGBToBWNode>("RGBToBWNodeNode")
.set("Color", make_float3(0.8f, 0.8f, 0.8f)))
.output_color("RGBToBWNodeNode::Val");
graph.finalize(&scene);
}
/*
* Tests:
* - folding of Emission nodes that don't emit to nothing.
*/
TEST(render_graph, constant_fold_emission1)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Discarding closure Emission.");
builder
.add_node(ShaderNodeBuilder<EmissionNode>("Emission")
.set("Color", make_float3(0.0f, 0.0f, 0.0f)))
.output_closure("Emission::Emission");
graph.finalize(&scene);
}
TEST(render_graph, constant_fold_emission2)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Discarding closure Emission.");
builder
.add_node(ShaderNodeBuilder<EmissionNode>("Emission")
.set("Strength", 0.0f))
.output_closure("Emission::Emission");
graph.finalize(&scene);
}
/*
* Tests:
* - folding of Background nodes that don't emit to nothing.
*/
TEST(render_graph, constant_fold_background1)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Discarding closure Background.");
builder
.add_node(ShaderNodeBuilder<BackgroundNode>("Background")
.set("Color", make_float3(0.0f, 0.0f, 0.0f)))
.output_closure("Background::Background");
graph.finalize(&scene);
}
TEST(render_graph, constant_fold_background2)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Discarding closure Background.");
builder
.add_node(ShaderNodeBuilder<BackgroundNode>("Background")
.set("Strength", 0.0f))
.output_closure("Background::Background");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of Add Closure with only one input.
*/
TEST(render_graph, constant_fold_shader_add)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding AddClosure1::Closure to socket Diffuse::BSDF.");
CORRECT_INFO_MESSAGE(log, "Folding AddClosure2::Closure to socket Diffuse::BSDF.");
INVALID_INFO_MESSAGE(log, "Folding AddClosure3");
builder
.add_node(ShaderNodeBuilder<DiffuseBsdfNode>("Diffuse"))
.add_node(ShaderNodeBuilder<AddClosureNode>("AddClosure1"))
.add_node(ShaderNodeBuilder<AddClosureNode>("AddClosure2"))
.add_node(ShaderNodeBuilder<AddClosureNode>("AddClosure3"))
.add_connection("Diffuse::BSDF", "AddClosure1::Closure1")
.add_connection("Diffuse::BSDF", "AddClosure2::Closure2")
.add_connection("AddClosure1::Closure", "AddClosure3::Closure1")
.add_connection("AddClosure2::Closure", "AddClosure3::Closure2")
.output_closure("AddClosure3::Closure");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of Mix Closure with 0 or 1 fac.
* - Folding of Mix Closure with both inputs folded to the same node.
*/
TEST(render_graph, constant_fold_shader_mix)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding MixClosure1::Closure to socket Diffuse::BSDF.");
CORRECT_INFO_MESSAGE(log, "Folding MixClosure2::Closure to socket Diffuse::BSDF.");
CORRECT_INFO_MESSAGE(log, "Folding MixClosure3::Closure to socket Diffuse::BSDF.");
builder
.add_attribute("Attribute")
.add_node(ShaderNodeBuilder<DiffuseBsdfNode>("Diffuse"))
/* choose left */
.add_node(ShaderNodeBuilder<MixClosureNode>("MixClosure1")
.set("Fac", 0.0f))
.add_connection("Diffuse::BSDF", "MixClosure1::Closure1")
/* choose right */
.add_node(ShaderNodeBuilder<MixClosureNode>("MixClosure2")
.set("Fac", 1.0f))
.add_connection("Diffuse::BSDF", "MixClosure2::Closure2")
/* both inputs folded the same */
.add_node(ShaderNodeBuilder<MixClosureNode>("MixClosure3"))
.add_connection("Attribute::Fac", "MixClosure3::Fac")
.add_connection("MixClosure1::Closure", "MixClosure3::Closure1")
.add_connection("MixClosure2::Closure", "MixClosure3::Closure2")
.output_closure("MixClosure3::Closure");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of Invert with all constant inputs.
*/
TEST(render_graph, constant_fold_invert)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Invert::Color to constant (0.68, 0.5, 0.32).");
builder
.add_node(ShaderNodeBuilder<InvertNode>("Invert")
.set("Fac", 0.8f)
.set("Color", make_float3(0.2f, 0.5f, 0.8f)))
.output_color("Invert::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of Invert with zero Fac.
*/
TEST(render_graph, constant_fold_invert_fac_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Invert::Color to socket Attribute::Color.");
builder
.add_attribute("Attribute")
.add_node(ShaderNodeBuilder<InvertNode>("Invert")
.set("Fac", 0.0f))
.add_connection("Attribute::Color", "Invert::Color")
.output_color("Invert::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of Invert with zero Fac and constant input.
*/
TEST(render_graph, constant_fold_invert_fac_0_const)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Invert::Color to constant (0.2, 0.5, 0.8).");
builder
.add_node(ShaderNodeBuilder<InvertNode>("Invert")
.set("Fac", 0.0f)
.set("Color", make_float3(0.2f, 0.5f, 0.8f)))
.output_color("Invert::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of MixRGB Add with all constant inputs (clamp false).
*/
TEST(render_graph, constant_fold_mix_add)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding MixAdd::Color to constant (0.62, 1.14, 1.42).");
builder
.add_node(ShaderNodeBuilder<MixNode>("MixAdd")
.set(&MixNode::type, NODE_MIX_ADD)
.set(&MixNode::use_clamp, false)
.set("Fac", 0.8f)
.set("Color1", make_float3(0.3, 0.5, 0.7))
.set("Color2", make_float3(0.4, 0.8, 0.9)))
.output_color("MixAdd::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of MixRGB Add with all constant inputs (clamp true).
*/
TEST(render_graph, constant_fold_mix_add_clamp)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding MixAdd::Color to constant (0.62, 1, 1).");
builder
.add_node(ShaderNodeBuilder<MixNode>("MixAdd")
.set(&MixNode::type, NODE_MIX_ADD)
.set(&MixNode::use_clamp, true)
.set("Fac", 0.8f)
.set("Color1", make_float3(0.3, 0.5, 0.7))
.set("Color2", make_float3(0.4, 0.8, 0.9)))
.output_color("MixAdd::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - No folding on fac 0 for dodge.
*/
TEST(render_graph, constant_fold_part_mix_dodge_no_fac_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
INVALID_INFO_MESSAGE(log, "Folding ");
builder
.add_attribute("Attribute1")
.add_attribute("Attribute2")
.add_node(ShaderNodeBuilder<MixNode>("Mix")
.set(&MixNode::type, NODE_MIX_DODGE)
.set(&MixNode::use_clamp, false)
.set("Fac", 0.0f))
.add_connection("Attribute1::Color", "Mix::Color1")
.add_connection("Attribute2::Color", "Mix::Color2")
.output_color("Mix::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - No folding on fac 0 for light.
*/
TEST(render_graph, constant_fold_part_mix_light_no_fac_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
INVALID_INFO_MESSAGE(log, "Folding ");
builder
.add_attribute("Attribute1")
.add_attribute("Attribute2")
.add_node(ShaderNodeBuilder<MixNode>("Mix")
.set(&MixNode::type, NODE_MIX_LIGHT)
.set(&MixNode::use_clamp, false)
.set("Fac", 0.0f))
.add_connection("Attribute1::Color", "Mix::Color1")
.add_connection("Attribute2::Color", "Mix::Color2")
.output_color("Mix::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - No folding on fac 0 for burn.
*/
TEST(render_graph, constant_fold_part_mix_burn_no_fac_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
INVALID_INFO_MESSAGE(log, "Folding ");
builder
.add_attribute("Attribute1")
.add_attribute("Attribute2")
.add_node(ShaderNodeBuilder<MixNode>("Mix")
.set(&MixNode::type, NODE_MIX_BURN)
.set(&MixNode::use_clamp, false)
.set("Fac", 0.0f))
.add_connection("Attribute1::Color", "Mix::Color1")
.add_connection("Attribute2::Color", "Mix::Color2")
.output_color("Mix::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - No folding on fac 0 for clamped blend.
*/
TEST(render_graph, constant_fold_part_mix_blend_clamped_no_fac_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
INVALID_INFO_MESSAGE(log, "Folding ");
builder
.add_attribute("Attribute1")
.add_attribute("Attribute2")
.add_node(ShaderNodeBuilder<MixNode>("Mix")
.set(&MixNode::type, NODE_MIX_BLEND)
.set(&MixNode::use_clamp, true)
.set("Fac", 0.0f))
.add_connection("Attribute1::Color", "Mix::Color1")
.add_connection("Attribute2::Color", "Mix::Color2")
.output_color("Mix::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of Mix with 0 or 1 Fac.
* - Folding of Mix with both inputs folded to the same node.
*/
TEST(render_graph, constant_fold_part_mix_blend)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding MixBlend1::Color to socket Attribute1::Color.");
CORRECT_INFO_MESSAGE(log, "Folding MixBlend2::Color to socket Attribute1::Color.");
CORRECT_INFO_MESSAGE(log, "Folding MixBlend3::Color to socket Attribute1::Color.");
builder
.add_attribute("Attribute1")
.add_attribute("Attribute2")
/* choose left */
.add_node(ShaderNodeBuilder<MixNode>("MixBlend1")
.set(&MixNode::type, NODE_MIX_BLEND)
.set(&MixNode::use_clamp, false)
.set("Fac", 0.0f))
.add_connection("Attribute1::Color", "MixBlend1::Color1")
.add_connection("Attribute2::Color", "MixBlend1::Color2")
/* choose right */
.add_node(ShaderNodeBuilder<MixNode>("MixBlend2")
.set(&MixNode::type, NODE_MIX_BLEND)
.set(&MixNode::use_clamp, false)
.set("Fac", 1.0f))
.add_connection("Attribute1::Color", "MixBlend2::Color2")
.add_connection("Attribute2::Color", "MixBlend2::Color1")
/* both inputs folded to Attribute1 */
.add_node(ShaderNodeBuilder<MixNode>("MixBlend3")
.set(&MixNode::type, NODE_MIX_BLEND)
.set(&MixNode::use_clamp, false))
.add_connection("Attribute1::Fac", "MixBlend3::Fac")
.add_connection("MixBlend1::Color", "MixBlend3::Color1")
.add_connection("MixBlend2::Color", "MixBlend3::Color2")
.output_color("MixBlend3::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - NOT folding of MixRGB Sub with the same inputs and fac NOT 1.
*/
TEST(render_graph, constant_fold_part_mix_sub_same_fac_bad)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
INVALID_INFO_MESSAGE(log, "Folding Mix::");
builder
.add_attribute("Attribute")
.add_node(ShaderNodeBuilder<MixNode>("Mix")
.set(&MixNode::type, NODE_MIX_SUB)
.set(&MixNode::use_clamp, true)
.set("Fac", 0.5f))
.add_connection("Attribute::Color", "Mix::Color1")
.add_connection("Attribute::Color", "Mix::Color2")
.output_color("Mix::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of MixRGB Sub with the same inputs and fac 1.
*/
TEST(render_graph, constant_fold_part_mix_sub_same_fac_1)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Mix::Color to constant (0, 0, 0).");
builder
.add_attribute("Attribute")
.add_node(ShaderNodeBuilder<MixNode>("Mix")
.set(&MixNode::type, NODE_MIX_SUB)
.set(&MixNode::use_clamp, true)
.set("Fac", 1.0f))
.add_connection("Attribute::Color", "Mix::Color1")
.add_connection("Attribute::Color", "Mix::Color2")
.output_color("Mix::Color");
graph.finalize(&scene);
}
/*
* Graph for testing partial folds of MixRGB with one constant argument.
* Includes 4 tests: constant on each side with fac either unknown or 1.
*/
static void build_mix_partial_test_graph(ShaderGraphBuilder &builder, NodeMix type, float3 constval)
{
builder
.add_attribute("Attribute")
/* constant on the left */
.add_node(ShaderNodeBuilder<MixNode>("Mix_Cx_Fx")
.set(&MixNode::type, type)
.set(&MixNode::use_clamp, false)
.set("Color1", constval))
.add_node(ShaderNodeBuilder<MixNode>("Mix_Cx_F1")
.set(&MixNode::type, type)
.set(&MixNode::use_clamp, false)
.set("Color1", constval)
.set("Fac", 1.0f))
.add_connection("Attribute::Fac", "Mix_Cx_Fx::Fac")
.add_connection("Attribute::Color", "Mix_Cx_Fx::Color2")
.add_connection("Attribute::Color", "Mix_Cx_F1::Color2")
/* constant on the right */
.add_node(ShaderNodeBuilder<MixNode>("Mix_xC_Fx")
.set(&MixNode::type, type)
.set(&MixNode::use_clamp, false)
.set("Color2", constval))
.add_node(ShaderNodeBuilder<MixNode>("Mix_xC_F1")
.set(&MixNode::type, type)
.set(&MixNode::use_clamp, false)
.set("Color2", constval)
.set("Fac", 1.0f))
.add_connection("Attribute::Fac", "Mix_xC_Fx::Fac")
.add_connection("Attribute::Color", "Mix_xC_Fx::Color1")
.add_connection("Attribute::Color", "Mix_xC_F1::Color1")
/* results of actual tests simply added up to connect to output */
.add_node(ShaderNodeBuilder<MixNode>("Out12")
.set(&MixNode::type, NODE_MIX_ADD)
.set(&MixNode::use_clamp, true)
.set("Fac", 1.0f))
.add_node(ShaderNodeBuilder<MixNode>("Out34")
.set(&MixNode::type, NODE_MIX_ADD)
.set(&MixNode::use_clamp, true)
.set("Fac", 1.0f))
.add_node(ShaderNodeBuilder<MixNode>("Out1234")
.set(&MixNode::type, NODE_MIX_ADD)
.set(&MixNode::use_clamp, true)
.set("Fac", 1.0f))
.add_connection("Mix_Cx_Fx::Color", "Out12::Color1")
.add_connection("Mix_Cx_F1::Color", "Out12::Color2")
.add_connection("Mix_xC_Fx::Color", "Out34::Color1")
.add_connection("Mix_xC_F1::Color", "Out34::Color2")
.add_connection("Out12::Color", "Out1234::Color1")
.add_connection("Out34::Color", "Out1234::Color2")
.output_color("Out1234::Color");
}
/*
* Tests: partial folding for RGB Add with known 0.
*/
TEST(render_graph, constant_fold_part_mix_add_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
/* 0 + X (fac 1) == X */
INVALID_INFO_MESSAGE(log, "Folding Mix_Cx_Fx::Color");
CORRECT_INFO_MESSAGE(log, "Folding Mix_Cx_F1::Color to socket Attribute::Color.");
/* X + 0 (fac ?) == X */
CORRECT_INFO_MESSAGE(log, "Folding Mix_xC_Fx::Color to socket Attribute::Color.");
CORRECT_INFO_MESSAGE(log, "Folding Mix_xC_F1::Color to socket Attribute::Color.");
INVALID_INFO_MESSAGE(log, "Folding Out");
build_mix_partial_test_graph(builder, NODE_MIX_ADD, make_float3(0, 0, 0));
graph.finalize(&scene);
}
/*
* Tests: partial folding for RGB Sub with known 0.
*/
TEST(render_graph, constant_fold_part_mix_sub_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
INVALID_INFO_MESSAGE(log, "Folding Mix_Cx_Fx::Color");
INVALID_INFO_MESSAGE(log, "Folding Mix_Cx_F1::Color");
/* X - 0 (fac ?) == X */
CORRECT_INFO_MESSAGE(log, "Folding Mix_xC_Fx::Color to socket Attribute::Color.");
CORRECT_INFO_MESSAGE(log, "Folding Mix_xC_F1::Color to socket Attribute::Color.");
INVALID_INFO_MESSAGE(log, "Folding Out");
build_mix_partial_test_graph(builder, NODE_MIX_SUB, make_float3(0, 0, 0));
graph.finalize(&scene);
}
/*
* Tests: partial folding for RGB Mul with known 1.
*/
TEST(render_graph, constant_fold_part_mix_mul_1)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
/* 1 * X (fac 1) == X */
INVALID_INFO_MESSAGE(log, "Folding Mix_Cx_Fx::Color");
CORRECT_INFO_MESSAGE(log, "Folding Mix_Cx_F1::Color to socket Attribute::Color.");
/* X * 1 (fac ?) == X */
CORRECT_INFO_MESSAGE(log, "Folding Mix_xC_Fx::Color to socket Attribute::Color.");
CORRECT_INFO_MESSAGE(log, "Folding Mix_xC_F1::Color to socket Attribute::Color.");
INVALID_INFO_MESSAGE(log, "Folding Out");
build_mix_partial_test_graph(builder, NODE_MIX_MUL, make_float3(1, 1, 1));
graph.finalize(&scene);
}
/*
* Tests: partial folding for RGB Div with known 1.
*/
TEST(render_graph, constant_fold_part_mix_div_1)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
INVALID_INFO_MESSAGE(log, "Folding Mix_Cx_Fx::Color");
INVALID_INFO_MESSAGE(log, "Folding Mix_Cx_F1::Color");
/* X / 1 (fac ?) == X */
CORRECT_INFO_MESSAGE(log, "Folding Mix_xC_Fx::Color to socket Attribute::Color.");
CORRECT_INFO_MESSAGE(log, "Folding Mix_xC_F1::Color to socket Attribute::Color.");
INVALID_INFO_MESSAGE(log, "Folding Out");
build_mix_partial_test_graph(builder, NODE_MIX_DIV, make_float3(1, 1, 1));
graph.finalize(&scene);
}
/*
* Tests: partial folding for RGB Mul with known 0.
*/
TEST(render_graph, constant_fold_part_mix_mul_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
/* 0 * ? (fac ?) == 0 */
CORRECT_INFO_MESSAGE(log, "Folding Mix_Cx_Fx::Color to constant (0, 0, 0).");
CORRECT_INFO_MESSAGE(log, "Folding Mix_Cx_F1::Color to constant (0, 0, 0).");
/* ? * 0 (fac 1) == 0 */
INVALID_INFO_MESSAGE(log, "Folding Mix_xC_Fx::Color");
CORRECT_INFO_MESSAGE(log, "Folding Mix_xC_F1::Color to constant (0, 0, 0).");
CORRECT_INFO_MESSAGE(log, "Folding Out12::Color to constant (0, 0, 0).");
INVALID_INFO_MESSAGE(log, "Folding Out1234");
build_mix_partial_test_graph(builder, NODE_MIX_MUL, make_float3(0, 0, 0));
graph.finalize(&scene);
}
/*
* Tests: partial folding for RGB Div with known 0.
*/
TEST(render_graph, constant_fold_part_mix_div_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
/* 0 / ? (fac ?) == 0 */
CORRECT_INFO_MESSAGE(log, "Folding Mix_Cx_Fx::Color to constant (0, 0, 0).");
CORRECT_INFO_MESSAGE(log, "Folding Mix_Cx_F1::Color to constant (0, 0, 0).");
INVALID_INFO_MESSAGE(log, "Folding Mix_xC_Fx::Color");
INVALID_INFO_MESSAGE(log, "Folding Mix_xC_F1::Color");
CORRECT_INFO_MESSAGE(log, "Folding Out12::Color to constant (0, 0, 0).");
INVALID_INFO_MESSAGE(log, "Folding Out1234");
build_mix_partial_test_graph(builder, NODE_MIX_DIV, make_float3(0, 0, 0));
graph.finalize(&scene);
}
/*
* Tests: Separate/Combine RGB with all constant inputs.
*/
TEST(render_graph, constant_fold_separate_combine_rgb)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding SeparateRGB::R to constant (0.3).");
CORRECT_INFO_MESSAGE(log, "Folding SeparateRGB::G to constant (0.5).");
CORRECT_INFO_MESSAGE(log, "Folding SeparateRGB::B to constant (0.7).");
CORRECT_INFO_MESSAGE(log, "Folding CombineRGB::Image to constant (0.3, 0.5, 0.7).");
builder
.add_node(ShaderNodeBuilder<SeparateRGBNode>("SeparateRGB")
.set("Image", make_float3(0.3f, 0.5f, 0.7f)))
.add_node(ShaderNodeBuilder<CombineRGBNode>("CombineRGB"))
.add_connection("SeparateRGB::R", "CombineRGB::R")
.add_connection("SeparateRGB::G", "CombineRGB::G")
.add_connection("SeparateRGB::B", "CombineRGB::B")
.output_color("CombineRGB::Image");
graph.finalize(&scene);
}
/*
* Tests: Separate/Combine XYZ with all constant inputs.
*/
TEST(render_graph, constant_fold_separate_combine_xyz)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding SeparateXYZ::X to constant (0.3).");
CORRECT_INFO_MESSAGE(log, "Folding SeparateXYZ::Y to constant (0.5).");
CORRECT_INFO_MESSAGE(log, "Folding SeparateXYZ::Z to constant (0.7).");
CORRECT_INFO_MESSAGE(log, "Folding CombineXYZ::Vector to constant (0.3, 0.5, 0.7).");
CORRECT_INFO_MESSAGE(log, "Folding convert_vector_to_color::value_color to constant (0.3, 0.5, 0.7).");
builder
.add_node(ShaderNodeBuilder<SeparateXYZNode>("SeparateXYZ")
.set("Vector", make_float3(0.3f, 0.5f, 0.7f)))
.add_node(ShaderNodeBuilder<CombineXYZNode>("CombineXYZ"))
.add_connection("SeparateXYZ::X", "CombineXYZ::X")
.add_connection("SeparateXYZ::Y", "CombineXYZ::Y")
.add_connection("SeparateXYZ::Z", "CombineXYZ::Z")
.output_color("CombineXYZ::Vector");
graph.finalize(&scene);
}
/*
* Tests: Separate/Combine HSV with all constant inputs.
*/
TEST(render_graph, constant_fold_separate_combine_hsv)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding SeparateHSV::H to constant (0.583333).");
CORRECT_INFO_MESSAGE(log, "Folding SeparateHSV::S to constant (0.571429).");
CORRECT_INFO_MESSAGE(log, "Folding SeparateHSV::V to constant (0.7).");
CORRECT_INFO_MESSAGE(log, "Folding CombineHSV::Color to constant (0.3, 0.5, 0.7).");
builder
.add_node(ShaderNodeBuilder<SeparateHSVNode>("SeparateHSV")
.set("Color", make_float3(0.3f, 0.5f, 0.7f)))
.add_node(ShaderNodeBuilder<CombineHSVNode>("CombineHSV"))
.add_connection("SeparateHSV::H", "CombineHSV::H")
.add_connection("SeparateHSV::S", "CombineHSV::S")
.add_connection("SeparateHSV::V", "CombineHSV::V")
.output_color("CombineHSV::Color");
graph.finalize(&scene);
}
/*
* Tests: Gamma with all constant inputs.
*/
TEST(render_graph, constant_fold_gamma)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Gamma::Color to constant (0.164317, 0.353553, 0.585662).");
builder
.add_node(ShaderNodeBuilder<GammaNode>("Gamma")
.set("Color", make_float3(0.3f, 0.5f, 0.7f))
.set("Gamma", 1.5f))
.output_color("Gamma::Color");
graph.finalize(&scene);
}
/*
* Tests: BrightnessContrast with all constant inputs.
*/
TEST(render_graph, constant_fold_bright_contrast)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding BrightContrast::Color to constant (0.16, 0.6, 1.04).");
builder
.add_node(ShaderNodeBuilder<BrightContrastNode>("BrightContrast")
.set("Color", make_float3(0.3f, 0.5f, 0.7f))
.set("Bright", 0.1f)
.set("Contrast", 1.2f))
.output_color("BrightContrast::Color");
graph.finalize(&scene);
}
/*
* Tests: blackbody with all constant inputs.
*/
TEST(render_graph, constant_fold_blackbody)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Blackbody::Color to constant (3.94163, 0.226523, 0).");
builder
.add_node(ShaderNodeBuilder<BlackbodyNode>("Blackbody")
.set("Temperature", 1200.0f))
.output_color("Blackbody::Color");
graph.finalize(&scene);
}
/*
* Tests: Math with all constant inputs (clamp false).
*/
TEST(render_graph, constant_fold_math)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Math::Value to constant (1.6).");
builder
.add_node(ShaderNodeBuilder<MathNode>("Math")
.set(&MathNode::type, NODE_MATH_ADD)
.set(&MathNode::use_clamp, false)
.set("Value1", 0.7f)
.set("Value2", 0.9f))
.output_value("Math::Value");
graph.finalize(&scene);
}
/*
* Tests: Math with all constant inputs (clamp true).
*/
TEST(render_graph, constant_fold_math_clamp)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Math::Value to constant (1).");
builder
.add_node(ShaderNodeBuilder<MathNode>("Math")
.set(&MathNode::type, NODE_MATH_ADD)
.set(&MathNode::use_clamp, true)
.set("Value1", 0.7f)
.set("Value2", 0.9f))
.output_value("Math::Value");
graph.finalize(&scene);
}
/*
* Graph for testing partial folds of Math with one constant argument.
* Includes 2 tests: constant on each side.
*/
static void build_math_partial_test_graph(ShaderGraphBuilder &builder, NodeMath type, float constval)
{
builder
.add_attribute("Attribute")
/* constant on the left */
.add_node(ShaderNodeBuilder<MathNode>("Math_Cx")
.set(&MathNode::type, type)
.set(&MathNode::use_clamp, false)
.set("Value1", constval))
.add_connection("Attribute::Fac", "Math_Cx::Value2")
/* constant on the right */
.add_node(ShaderNodeBuilder<MathNode>("Math_xC")
.set(&MathNode::type, type)
.set(&MathNode::use_clamp, false)
.set("Value2", constval))
.add_connection("Attribute::Fac", "Math_xC::Value1")
/* output sum */
.add_node(ShaderNodeBuilder<MathNode>("Out")
.set(&MathNode::type, NODE_MATH_ADD)
.set(&MathNode::use_clamp, true))
.add_connection("Math_Cx::Value", "Out::Value1")
.add_connection("Math_xC::Value", "Out::Value2")
.output_value("Out::Value");
}
/*
* Tests: partial folding for Math Add with known 0.
*/
TEST(render_graph, constant_fold_part_math_add_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
/* X + 0 == 0 + X == X */
CORRECT_INFO_MESSAGE(log, "Folding Math_Cx::Value to socket Attribute::Fac.");
CORRECT_INFO_MESSAGE(log, "Folding Math_xC::Value to socket Attribute::Fac.");
INVALID_INFO_MESSAGE(log, "Folding Out::");
build_math_partial_test_graph(builder, NODE_MATH_ADD, 0.0f);
graph.finalize(&scene);
}
/*
* Tests: partial folding for Math Sub with known 0.
*/
TEST(render_graph, constant_fold_part_math_sub_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
/* X - 0 == X */
INVALID_INFO_MESSAGE(log, "Folding Math_Cx::");
CORRECT_INFO_MESSAGE(log, "Folding Math_xC::Value to socket Attribute::Fac.");
INVALID_INFO_MESSAGE(log, "Folding Out::");
build_math_partial_test_graph(builder, NODE_MATH_SUBTRACT, 0.0f);
graph.finalize(&scene);
}
/*
* Tests: partial folding for Math Mul with known 1.
*/
TEST(render_graph, constant_fold_part_math_mul_1)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
/* X * 1 == 1 * X == X */
CORRECT_INFO_MESSAGE(log, "Folding Math_Cx::Value to socket Attribute::Fac.");
CORRECT_INFO_MESSAGE(log, "Folding Math_xC::Value to socket Attribute::Fac.");
INVALID_INFO_MESSAGE(log, "Folding Out::");
build_math_partial_test_graph(builder, NODE_MATH_MULTIPLY, 1.0f);
graph.finalize(&scene);
}
/*
* Tests: partial folding for Math Div with known 1.
*/
TEST(render_graph, constant_fold_part_math_div_1)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
/* X / 1 == X */
INVALID_INFO_MESSAGE(log, "Folding Math_Cx::");
CORRECT_INFO_MESSAGE(log, "Folding Math_xC::Value to socket Attribute::Fac.");
INVALID_INFO_MESSAGE(log, "Folding Out::");
build_math_partial_test_graph(builder, NODE_MATH_DIVIDE, 1.0f);
graph.finalize(&scene);
}
/*
* Tests: partial folding for Math Mul with known 0.
*/
TEST(render_graph, constant_fold_part_math_mul_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
/* X * 0 == 0 * X == 0 */
CORRECT_INFO_MESSAGE(log, "Folding Math_Cx::Value to constant (0).");
CORRECT_INFO_MESSAGE(log, "Folding Math_xC::Value to constant (0).");
CORRECT_INFO_MESSAGE(log, "Folding Out::Value to constant (0)");
CORRECT_INFO_MESSAGE(log, "Discarding closure EmissionNode.");
build_math_partial_test_graph(builder, NODE_MATH_MULTIPLY, 0.0f);
graph.finalize(&scene);
}
/*
* Tests: partial folding for Math Div with known 0.
*/
TEST(render_graph, constant_fold_part_math_div_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
/* 0 / X == 0 */
CORRECT_INFO_MESSAGE(log, "Folding Math_Cx::Value to constant (0).");
INVALID_INFO_MESSAGE(log, "Folding Math_xC::");
INVALID_INFO_MESSAGE(log, "Folding Out::");
build_math_partial_test_graph(builder, NODE_MATH_DIVIDE, 0.0f);
graph.finalize(&scene);
}
/*
* Tests: Vector Math with all constant inputs.
*/
TEST(render_graph, constant_fold_vector_math)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding VectorMath::Value to constant (1).");
CORRECT_INFO_MESSAGE(log, "Folding VectorMath::Vector to constant (3, 0, 0).");
CORRECT_INFO_MESSAGE(log, "Folding convert_vector_to_float::value_float to constant (1).");
CORRECT_INFO_MESSAGE(log, "Folding Math::Value to constant (2).");
CORRECT_INFO_MESSAGE(log, "Folding convert_float_to_color::value_color to constant (2, 2, 2).");
builder
.add_node(ShaderNodeBuilder<VectorMathNode>("VectorMath")
.set(&VectorMathNode::type, NODE_VECTOR_MATH_SUBTRACT)
.set("Vector1", make_float3(1.3f, 0.5f, 0.7f))
.set("Vector2", make_float3(-1.7f, 0.5f, 0.7f)))
.add_node(ShaderNodeBuilder<MathNode>("Math")
.set(&MathNode::type, NODE_MATH_ADD))
.add_connection("VectorMath::Vector", "Math::Value1")
.add_connection("VectorMath::Value", "Math::Value2")
.output_color("Math::Value");
graph.finalize(&scene);
}
/*
* Graph for testing partial folds of Vector Math with one constant argument.
* Includes 2 tests: constant on each side.
*/
static void build_vecmath_partial_test_graph(ShaderGraphBuilder &builder, NodeVectorMath type, float3 constval)
{
builder
.add_attribute("Attribute")
/* constant on the left */
.add_node(ShaderNodeBuilder<VectorMathNode>("Math_Cx")
.set(&VectorMathNode::type, type)
.set("Vector1", constval))
.add_connection("Attribute::Vector", "Math_Cx::Vector2")
/* constant on the right */
.add_node(ShaderNodeBuilder<VectorMathNode>("Math_xC")
.set(&VectorMathNode::type, type)
.set("Vector2", constval))
.add_connection("Attribute::Vector", "Math_xC::Vector1")
/* output sum */
.add_node(ShaderNodeBuilder<VectorMathNode>("Out")
.set(&VectorMathNode::type, NODE_VECTOR_MATH_ADD))
.add_connection("Math_Cx::Vector", "Out::Vector1")
.add_connection("Math_xC::Vector", "Out::Vector2")
.output_color("Out::Vector");
}
/*
* Tests: partial folding for Vector Math Add with known 0.
*/
TEST(render_graph, constant_fold_part_vecmath_add_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
/* X + 0 == 0 + X == X */
CORRECT_INFO_MESSAGE(log, "Folding Math_Cx::Vector to socket Attribute::Vector.");
CORRECT_INFO_MESSAGE(log, "Folding Math_xC::Vector to socket Attribute::Vector.");
INVALID_INFO_MESSAGE(log, "Folding Out::");
build_vecmath_partial_test_graph(builder, NODE_VECTOR_MATH_ADD, make_float3(0,0,0));
graph.finalize(&scene);
}
/*
* Tests: partial folding for Vector Math Sub with known 0.
*/
TEST(render_graph, constant_fold_part_vecmath_sub_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
/* X - 0 == X */
INVALID_INFO_MESSAGE(log, "Folding Math_Cx::");
CORRECT_INFO_MESSAGE(log, "Folding Math_xC::Vector to socket Attribute::Vector.");
INVALID_INFO_MESSAGE(log, "Folding Out::");
build_vecmath_partial_test_graph(builder, NODE_VECTOR_MATH_SUBTRACT, make_float3(0,0,0));
graph.finalize(&scene);
}
/*
* Tests: partial folding for Vector Math Dot Product with known 0.
*/
TEST(render_graph, constant_fold_part_vecmath_dot_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
/* X * 0 == 0 * X == X */
CORRECT_INFO_MESSAGE(log, "Folding Math_Cx::Vector to constant (0, 0, 0).");
CORRECT_INFO_MESSAGE(log, "Folding Math_xC::Vector to constant (0, 0, 0).");
CORRECT_INFO_MESSAGE(log, "Folding Out::Vector to constant (0, 0, 0).");
CORRECT_INFO_MESSAGE(log, "Discarding closure EmissionNode.");
build_vecmath_partial_test_graph(builder, NODE_VECTOR_MATH_DOT_PRODUCT, make_float3(0,0,0));
graph.finalize(&scene);
}
/*
* Tests: partial folding for Vector Math Cross Product with known 0.
*/
TEST(render_graph, constant_fold_part_vecmath_cross_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
/* X * 0 == 0 * X == X */
CORRECT_INFO_MESSAGE(log, "Folding Math_Cx::Vector to constant (0, 0, 0).");
CORRECT_INFO_MESSAGE(log, "Folding Math_xC::Vector to constant (0, 0, 0).");
CORRECT_INFO_MESSAGE(log, "Folding Out::Vector to constant (0, 0, 0).");
CORRECT_INFO_MESSAGE(log, "Discarding closure EmissionNode.");
build_vecmath_partial_test_graph(builder, NODE_VECTOR_MATH_CROSS_PRODUCT, make_float3(0,0,0));
graph.finalize(&scene);
}
/*
* Tests: Bump with no height input folded to Normal input.
*/
TEST(render_graph, constant_fold_bump)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Bump::Normal to socket Geometry1::Normal.");
builder
.add_node(ShaderNodeBuilder<GeometryNode>("Geometry1"))
.add_node(ShaderNodeBuilder<BumpNode>("Bump"))
.add_connection("Geometry1::Normal", "Bump::Normal")
.output_color("Bump::Normal");
graph.finalize(&scene);
}
/*
* Tests: Bump with no inputs folded to Geometry::Normal.
*/
TEST(render_graph, constant_fold_bump_no_input)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Bump::Normal to socket geometry::Normal.");
builder
.add_node(ShaderNodeBuilder<BumpNode>("Bump"))
.output_color("Bump::Normal");
graph.finalize(&scene);
}
template<class T>
void init_test_curve(array<T> &buffer, T start, T end, int steps)
{
buffer.resize(steps);
for (int i = 0; i < steps; i++)
buffer[i] = lerp(start, end, float(i)/(steps-1));
}
/*
* Tests:
* - Folding of RGB Curves with all constant inputs.
*/
TEST(render_graph, constant_fold_rgb_curves)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Curves::Color to constant (0.275, 0.5, 0.475).");
array<float3> curve;
init_test_curve(curve, make_float3(0.0f, 0.25f, 1.0f), make_float3(1.0f, 0.75f, 0.0f), 257);
builder
.add_node(ShaderNodeBuilder<RGBCurvesNode>("Curves")
.set(&CurvesNode::curves, curve)
.set(&CurvesNode::min_x, 0.1f)
.set(&CurvesNode::max_x, 0.9f)
.set("Fac", 0.5f)
.set("Color", make_float3(0.3f, 0.5f, 0.7f)))
.output_color("Curves::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of RGB Curves with zero Fac.
*/
TEST(render_graph, constant_fold_rgb_curves_fac_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Curves::Color to socket Attribute::Color.");
array<float3> curve;
init_test_curve(curve, make_float3(0.0f, 0.25f, 1.0f), make_float3(1.0f, 0.75f, 0.0f), 257);
builder
.add_attribute("Attribute")
.add_node(ShaderNodeBuilder<RGBCurvesNode>("Curves")
.set(&CurvesNode::curves, curve)
.set(&CurvesNode::min_x, 0.1f)
.set(&CurvesNode::max_x, 0.9f)
.set("Fac", 0.0f))
.add_connection("Attribute::Color", "Curves::Color")
.output_color("Curves::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of RGB Curves with zero Fac and all constant inputs.
*/
TEST(render_graph, constant_fold_rgb_curves_fac_0_const)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Curves::Color to constant (0.3, 0.5, 0.7).");
array<float3> curve;
init_test_curve(curve, make_float3(0.0f, 0.25f, 1.0f), make_float3(1.0f, 0.75f, 0.0f), 257);
builder
.add_node(ShaderNodeBuilder<RGBCurvesNode>("Curves")
.set(&CurvesNode::curves, curve)
.set(&CurvesNode::min_x, 0.1f)
.set(&CurvesNode::max_x, 0.9f)
.set("Fac", 0.0f)
.set("Color", make_float3(0.3f, 0.5f, 0.7f)))
.output_color("Curves::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of Vector Curves with all constant inputs.
*/
TEST(render_graph, constant_fold_vector_curves)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Curves::Vector to constant (0.275, 0.5, 0.475).");
array<float3> curve;
init_test_curve(curve, make_float3(0.0f, 0.25f, 1.0f), make_float3(1.0f, 0.75f, 0.0f), 257);
builder
.add_node(ShaderNodeBuilder<VectorCurvesNode>("Curves")
.set(&CurvesNode::curves, curve)
.set(&CurvesNode::min_x, 0.1f)
.set(&CurvesNode::max_x, 0.9f)
.set("Fac", 0.5f)
.set("Vector", make_float3(0.3f, 0.5f, 0.7f)))
.output_color("Curves::Vector");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of Vector Curves with zero Fac.
*/
TEST(render_graph, constant_fold_vector_curves_fac_0)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Curves::Vector to socket Attribute::Vector.");
array<float3> curve;
init_test_curve(curve, make_float3(0.0f, 0.25f, 1.0f), make_float3(1.0f, 0.75f, 0.0f), 257);
builder
.add_attribute("Attribute")
.add_node(ShaderNodeBuilder<VectorCurvesNode>("Curves")
.set(&CurvesNode::curves, curve)
.set(&CurvesNode::min_x, 0.1f)
.set(&CurvesNode::max_x, 0.9f)
.set("Fac", 0.0f))
.add_connection("Attribute::Vector", "Curves::Vector")
.output_color("Curves::Vector");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of Color Ramp with all constant inputs.
*/
TEST(render_graph, constant_fold_rgb_ramp)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Ramp::Color to constant (0.14, 0.39, 0.64).");
CORRECT_INFO_MESSAGE(log, "Folding Ramp::Alpha to constant (0.89).");
array<float3> curve;
array<float> alpha;
init_test_curve(curve, make_float3(0.0f, 0.25f, 0.5f), make_float3(0.25f, 0.5f, 0.75f), 9);
init_test_curve(alpha, 0.75f, 1.0f, 9);
builder
.add_node(ShaderNodeBuilder<RGBRampNode>("Ramp")
.set(&RGBRampNode::ramp, curve)
.set(&RGBRampNode::ramp_alpha, alpha)
.set(&RGBRampNode::interpolate, true)
.set("Fac", 0.56f))
.add_node(ShaderNodeBuilder<MixNode>("Mix")
.set(&MixNode::type, NODE_MIX_ADD))
.add_connection("Ramp::Color", "Mix::Color1")
.add_connection("Ramp::Alpha", "Mix::Color2")
.output_color("Mix::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of Color Ramp with all constant inputs (interpolate false).
*/
TEST(render_graph, constant_fold_rgb_ramp_flat)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Ramp::Color to constant (0.125, 0.375, 0.625).");
CORRECT_INFO_MESSAGE(log, "Folding Ramp::Alpha to constant (0.875).");
array<float3> curve;
array<float> alpha;
init_test_curve(curve, make_float3(0.0f, 0.25f, 0.5f), make_float3(0.25f, 0.5f, 0.75f), 9);
init_test_curve(alpha, 0.75f, 1.0f, 9);
builder
.add_node(ShaderNodeBuilder<RGBRampNode>("Ramp")
.set(&RGBRampNode::ramp, curve)
.set(&RGBRampNode::ramp_alpha, alpha)
.set(&RGBRampNode::interpolate, false)
.set("Fac", 0.56f))
.add_node(ShaderNodeBuilder<MixNode>("Mix")
.set(&MixNode::type, NODE_MIX_ADD))
.add_connection("Ramp::Color", "Mix::Color1")
.add_connection("Ramp::Alpha", "Mix::Color2")
.output_color("Mix::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of redundant conversion of float to color to float.
*/
TEST(render_graph, constant_fold_convert_float_color_float)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding Invert::Color to socket convert_float_to_color::value_color.");
CORRECT_INFO_MESSAGE(log, "Folding convert_color_to_float::value_float to socket Attribute::Fac.");
builder
.add_attribute("Attribute")
.add_node(ShaderNodeBuilder<InvertNode>("Invert")
.set("Fac", 0.0f))
.add_connection("Attribute::Fac", "Invert::Color")
.output_value("Invert::Color");
graph.finalize(&scene);
}
/*
* Tests:
* - Folding of redundant conversion of color to vector to color.
*/
TEST(render_graph, constant_fold_convert_color_vector_color)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding VecAdd::Vector to socket convert_color_to_vector::value_vector.");
CORRECT_INFO_MESSAGE(log, "Folding convert_vector_to_color::value_color to socket Attribute::Color.");
builder
.add_attribute("Attribute")
.add_node(ShaderNodeBuilder<VectorMathNode>("VecAdd")
.set(&VectorMathNode::type, NODE_VECTOR_MATH_ADD)
.set("Vector2", make_float3(0,0,0)))
.add_connection("Attribute::Color", "VecAdd::Vector1")
.output_color("VecAdd::Vector");
graph.finalize(&scene);
}
/*
* Tests:
* - NOT folding conversion of color to float to color.
*/
TEST(render_graph, constant_fold_convert_color_float_color)
{
DEFINE_COMMON_VARIABLES(builder, log);
EXPECT_ANY_MESSAGE(log);
CORRECT_INFO_MESSAGE(log, "Folding MathAdd::Value to socket convert_color_to_float::value_float.");
INVALID_INFO_MESSAGE(log, "Folding convert_float_to_color::");
builder
.add_attribute("Attribute")
.add_node(ShaderNodeBuilder<MathNode>("MathAdd")
.set(&MathNode::type, NODE_MATH_ADD)
.set("Value2", 0.0f))
.add_connection("Attribute::Color", "MathAdd::Value1")
.output_color("MathAdd::Value");
graph.finalize(&scene);
}
CCL_NAMESPACE_END