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// Copyright 2009-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#include "../common/tutorial/tutorial.h"
#include "../common/tutorial/tutorial_device.h"
#include "../common/tutorial/benchmark_render.h"
#if defined(EMBREE_SYCL_TUTORIAL)
# define NAME "viewer_sycl"
# define FEATURES FEATURE_RTCORE | FEATURE_SYCL
#else
# define NAME "viewer"
# define FEATURES FEATURE_RTCORE
#endif
namespace embree
{
extern "C" float g_min_width = 0.0f;
extern "C" float g_min_width_max_radius_scale;
extern "C" bool g_use_scene_features = true;
extern "C" RTCFeatureFlags g_feature_mask = RTC_FEATURE_FLAG_ALL;
extern "C" float scale;
extern "C" bool g_changed;
extern "C" Shader shader = SHADER_DEFAULT;
typedef void (* renderFrameFunc)(int* pixels, const unsigned int width, const unsigned int height, const float time, const ISPCCamera& camera);
extern renderFrameFunc renderFrame;
extern "C" void renderFrameStandard(int* pixels, const unsigned int width, const unsigned int height, const float time, const ISPCCamera& camera);
extern "C" void renderFrameDebugShader(int* pixels, const unsigned int width, const unsigned int height, const float time, const ISPCCamera& camera);
extern "C" void renderFrameAOShader(int* pixels, const unsigned int width, const unsigned int height, const float time, const ISPCCamera& camera);
struct Tutorial : public SceneLoadingTutorialApplication
{
Tutorial()
: SceneLoadingTutorialApplication(NAME,FEATURES)
{
#if RTC_MIN_WIDTH
registerOption("min-width", [] (Ref<ParseStream> cin, const FileName& path) {
g_min_width = cin->getFloat();
g_min_width_max_radius_scale = cin->getFloat();
}, "--min-width <float> <float>: first value sets number of pixel to enlarge curve and point geometry to, but maximally scales hair radii by second value");
#endif
registerOption("shader", [] (Ref<ParseStream> cin, const FileName& path) {
std::string mode = cin->getString();
if (mode == "default" ) shader = SHADER_DEFAULT;
else if (mode == "eyelight") shader = SHADER_EYELIGHT;
else if (mode == "occlusion") shader = SHADER_OCCLUSION;
else if (mode == "uv" ) shader = SHADER_UV;
else if (mode == "texcoords") shader = SHADER_TEXCOORDS;
else if (mode == "texcoords-grid") shader = SHADER_TEXCOORDS_GRID;
else if (mode == "Ng" ) shader = SHADER_NG;
else if (mode == "cycles" ) { shader = SHADER_CYCLES; scale = cin->getFloat(); }
else if (mode == "geomID" ) shader = SHADER_GEOMID;
else if (mode == "primID" ) shader = SHADER_GEOMID_PRIMID;
else if (mode == "ao" ) shader = SHADER_AO;
else throw std::runtime_error("invalid shader:" +mode);
},
"--shader <string>: sets shader to use at startup\n"
" default: default tutorial shader\n"
" eyelight: eyelight shading\n"
" occlusion: occlusion shading\n"
" uv: uv debug shader\n"
" texcoords: texture coordinate debug shader\n"
" texcoords-grid: grid texture debug shader\n"
" Ng: visualization of shading normal\n"
" cycles <float>: CPU cycle visualization\n"
" ao: ambient occlusion\n"
" geomID: visualization of geometry ID\n"
" primID: visualization of geometry and primitive ID");
#if defined(EMBREE_SYCL_TUTORIAL) && !defined(EMBREE_SYCL_RT_SIMULATION)
registerOption("features", [] (Ref<ParseStream> cin, const FileName& path) {
g_use_scene_features = false;
unsigned int feature_mask = RTC_FEATURE_FLAG_NONE;
while (cin->peek() != "" && cin->peek()[0] != '-') {
std::string feature = cin->getString();
std::transform(feature.begin(), feature.end(), feature.begin(), [](unsigned char c){ return toupper(c); });
if (feature == "MOTION_BLUR") feature_mask |= RTC_FEATURE_FLAG_MOTION_BLUR;
else if (feature == "TRIANGLE") feature_mask |= RTC_FEATURE_FLAG_TRIANGLE;
else if (feature == "QUAD") feature_mask |= RTC_FEATURE_FLAG_QUAD;
else if (feature == "GRID") feature_mask |= RTC_FEATURE_FLAG_GRID;
else if (feature == "SUBDIVISION") feature_mask |= RTC_FEATURE_FLAG_SUBDIVISION;
else if (feature == "CONE_LINEAR_CURVE" ) feature_mask |= RTC_FEATURE_FLAG_CONE_LINEAR_CURVE;
else if (feature == "ROUND_LINEAR_CURVE") feature_mask |= RTC_FEATURE_FLAG_ROUND_LINEAR_CURVE;
else if (feature == "FLAT_LINEAR_CURVE" ) feature_mask |= RTC_FEATURE_FLAG_FLAT_LINEAR_CURVE;
else if (feature == "ROUND_BEZIER_CURVE") feature_mask |= RTC_FEATURE_FLAG_ROUND_BEZIER_CURVE;
else if (feature == "FLAT_BEZIER_CURVE") feature_mask |= RTC_FEATURE_FLAG_FLAT_BEZIER_CURVE;
else if (feature == "NORMAL_ORIENTED_BEZIER_CURVE") feature_mask |= RTC_FEATURE_FLAG_NORMAL_ORIENTED_BEZIER_CURVE;
else if (feature == "ROUND_BSPLINE_CURVE") feature_mask |= RTC_FEATURE_FLAG_ROUND_BSPLINE_CURVE;
else if (feature == "FLAT_BSPLINE_CURVE") feature_mask |= RTC_FEATURE_FLAG_FLAT_BSPLINE_CURVE;
else if (feature == "NORMAL_ORIENTED_BSPLINE_CURVE") feature_mask |= RTC_FEATURE_FLAG_NORMAL_ORIENTED_BSPLINE_CURVE;
else if (feature == "ROUND_HERMITE_CURVE") feature_mask |= RTC_FEATURE_FLAG_ROUND_HERMITE_CURVE;
else if (feature == "FLAT_HERMITE_CURVE") feature_mask |= RTC_FEATURE_FLAG_FLAT_HERMITE_CURVE;
else if (feature == "NORMAL_ORIENTED_HERMITE_CURVE") feature_mask |= RTC_FEATURE_FLAG_NORMAL_ORIENTED_HERMITE_CURVE;
else if (feature == "SPHERE_POINT") feature_mask |= RTC_FEATURE_FLAG_SPHERE_POINT;
else if (feature == "DISC_POINT") feature_mask |= RTC_FEATURE_FLAG_DISC_POINT;
else if (feature == "ORIENTED_DISC_POINT") feature_mask |= RTC_FEATURE_FLAG_ORIENTED_DISC_POINT;
else if (feature == "POINT") feature_mask |= RTC_FEATURE_FLAG_POINT;
else if (feature == "ROUND_CATMULL_ROM_CURVE") feature_mask |= RTC_FEATURE_FLAG_ROUND_CATMULL_ROM_CURVE;
else if (feature == "FLAT_CATMULL_ROM_CURVE") feature_mask |= RTC_FEATURE_FLAG_FLAT_CATMULL_ROM_CURVE;
else if (feature == "NORMAL_ORIENTED_CATMULL_ROM_CURVE") feature_mask |= RTC_FEATURE_FLAG_NORMAL_ORIENTED_CATMULL_ROM_CURVE;
else if (feature == "ROUND_CURVES") feature_mask |= RTC_FEATURE_FLAG_ROUND_CURVES;
else if (feature == "FLAT_CURVES") feature_mask |= RTC_FEATURE_FLAG_FLAT_CURVES;
else if (feature == "NORMAL_ORIENTED_CURVES") feature_mask |= RTC_FEATURE_FLAG_NORMAL_ORIENTED_CURVES;
else if (feature == "INSTANCE") feature_mask |= RTC_FEATURE_FLAG_INSTANCE;
else if (feature == "INSTANCE_ARRAY") feature_mask |= RTC_FEATURE_FLAG_INSTANCE_ARRAY;
else if (feature == "FILTER_FUNCTION_IN_ARGUMENTS") feature_mask |= RTC_FEATURE_FLAG_FILTER_FUNCTION_IN_ARGUMENTS;
else if (feature == "FILTER_FUNCTION_IN_GEOMETRY") feature_mask |= RTC_FEATURE_FLAG_FILTER_FUNCTION_IN_GEOMETRY;
else if (feature == "FILTER_FUNCTION") feature_mask |= RTC_FEATURE_FLAG_FILTER_FUNCTION;
else if (feature == "USER_GEOMETRY_CALLBACK_IN_ARGUMENTS") feature_mask |= RTC_FEATURE_FLAG_USER_GEOMETRY_CALLBACK_IN_ARGUMENTS;
else if (feature == "USER_GEOMETRY_CALLBACK_IN_GEOMETRY") feature_mask |= RTC_FEATURE_FLAG_USER_GEOMETRY_CALLBACK_IN_GEOMETRY;
else if (feature == "USER_GEOMETRY") feature_mask |= RTC_FEATURE_FLAG_USER_GEOMETRY;
else if (feature == "ALL") feature_mask |= RTC_FEATURE_FLAG_ALL;
else throw std::runtime_error("unknown feature \"" + feature + "\"");
}
g_feature_mask = (RTCFeatureFlags) feature_mask;
}, "--features feature1,feature2: sets feature mask for JIT compilation, e.g. TRIANGLE,QUAD");
#endif
}
#if defined(USE_GLFW)
/* called when a key is pressed */
void keypressed(int key) override
{
if (key == GLFW_KEY_F1) {
renderFrame = renderFrameStandard;
shader = SHADER_DEFAULT;
g_changed = true;
}
else if (key == GLFW_KEY_F2) {
renderFrame = renderFrameDebugShader;
shader = SHADER_EYELIGHT;
g_changed = true;
}
else if (key == GLFW_KEY_F3) {
renderFrame = renderFrameDebugShader;
shader = SHADER_OCCLUSION;
g_changed = true;
}
else if (key == GLFW_KEY_F4) {
renderFrame = renderFrameDebugShader;
shader = SHADER_UV;
g_changed = true;
}
else if (key == GLFW_KEY_F5) {
renderFrame = renderFrameDebugShader;
shader = SHADER_NG;
g_changed = true;
}
else if (key == GLFW_KEY_F6) {
renderFrame = renderFrameDebugShader;
shader = SHADER_GEOMID;
g_changed = true;
}
else if (key == GLFW_KEY_F7) {
renderFrame = renderFrameDebugShader;
shader = SHADER_GEOMID_PRIMID;
g_changed = true;
}
else if (key == GLFW_KEY_F8) {
renderFrame = renderFrameDebugShader;
if (shader == SHADER_TEXCOORDS) shader = SHADER_TEXCOORDS_GRID;
else shader = SHADER_TEXCOORDS;
g_changed = true;
}
else if (key == GLFW_KEY_F9) {
if (shader == SHADER_CYCLES) scale *= 2.0f;
renderFrame = renderFrameDebugShader;
shader = SHADER_CYCLES;
g_changed = true;
}
else if (key == GLFW_KEY_F10) {
if (shader == SHADER_CYCLES) scale *= 0.5f;
renderFrame = renderFrameDebugShader;
shader = SHADER_CYCLES;
g_changed = true;
}
else
TutorialApplication::keypressed(key);
}
#endif
void postParseCommandLine() override
{
/* set shader mode */
switch (shader) {
case SHADER_DEFAULT : renderFrame = renderFrameStandard; break;
case SHADER_EYELIGHT : renderFrame = renderFrameDebugShader; break;
case SHADER_OCCLUSION: renderFrame = renderFrameDebugShader; break;
case SHADER_UV : renderFrame = renderFrameDebugShader; break;
case SHADER_TEXCOORDS: renderFrame = renderFrameDebugShader; break;
case SHADER_TEXCOORDS_GRID: renderFrame = renderFrameDebugShader; break;
case SHADER_NG : renderFrame = renderFrameDebugShader; break;
case SHADER_CYCLES : renderFrame = renderFrameDebugShader; break;
case SHADER_GEOMID : renderFrame = renderFrameDebugShader; break;
case SHADER_GEOMID_PRIMID: renderFrame = renderFrameDebugShader; break;
case SHADER_AO: renderFrame = renderFrameAOShader; break;
};
/* load default scene if none specified */
if (scene_empty_post_parse()) {
FileName file = FileName::executableFolder() + FileName("models/cornell_box.ecs");
parseCommandLine(new ParseStream(new LineCommentFilter(file, "#")), file.path());
}
}
};
}
int main(int argc, char** argv) {
if (embree::TutorialBenchmark::benchmark(argc, argv)) {
return embree::TutorialBenchmark(embree::renderBenchFunc<embree::Tutorial>).main(argc, argv);
}
return embree::Tutorial().main(argc, argv);
}
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