summaryrefslogtreecommitdiffstatshomepage
path: root/3rdparty/bgfx/examples/18-ibl/ibl.cpp
diff options
context:
space:
mode:
Diffstat (limited to '3rdparty/bgfx/examples/18-ibl/ibl.cpp')
-rw-r--r--3rdparty/bgfx/examples/18-ibl/ibl.cpp811
1 files changed, 453 insertions, 358 deletions
diff --git a/3rdparty/bgfx/examples/18-ibl/ibl.cpp b/3rdparty/bgfx/examples/18-ibl/ibl.cpp
index 1608da739bd..d369fa918b3 100644
--- a/3rdparty/bgfx/examples/18-ibl/ibl.cpp
+++ b/3rdparty/bgfx/examples/18-ibl/ibl.cpp
@@ -14,6 +14,9 @@
#include <bx/readerwriter.h>
#include <bx/string.h>
+namespace
+{
+
static float s_texelHalf = 0.0f;
struct Uniforms
@@ -32,7 +35,7 @@ struct Uniforms
void destroy()
{
- bgfx::destroyUniform(u_params);
+ bgfx::destroy(u_params);
}
union
@@ -138,7 +141,7 @@ void screenSpaceQuad(float _textureWidth, float _textureHeight, bool _originBott
vertex[2].m_u = maxu;
vertex[2].m_v = maxv;
- bgfx::setVertexBuffer(&vb);
+ bgfx::setVertexBuffer(0, &vb);
}
}
@@ -165,8 +168,8 @@ struct LightProbe
void destroy()
{
- bgfx::destroyTexture(m_tex);
- bgfx::destroyTexture(m_texIrr);
+ bgfx::destroy(m_tex);
+ bgfx::destroy(m_texIrr);
}
bgfx::TextureHandle m_tex;
@@ -350,8 +353,8 @@ struct Camera
static inline void vecFromLatLong(float _vec[3], float _u, float _v)
{
- const float phi = _u * 2.0f*bx::pi;
- const float theta = _v * bx::pi;
+ const float phi = _u * 2.0f*bx::kPi;
+ const float theta = _v * bx::kPi;
const float st = bx::fsin(theta);
const float sp = bx::fsin(phi);
@@ -368,8 +371,8 @@ struct Camera
const float phi = bx::fatan2(_vec[0], _vec[2]);
const float theta = bx::facos(_vec[1]);
- _u = (bx::pi + phi)*bx::invPi*0.5f;
- _v = theta*bx::invPi;
+ _u = (bx::kPi + phi)*bx::kInvPi*0.5f;
+ _v = theta*bx::kInvPi;
}
struct Interp3f
@@ -420,365 +423,449 @@ struct Mouse
int32_t m_scrollPrev;
};
-int _main_(int _argc, char** _argv)
+struct Settings
{
- Args args(_argc, _argv);
+ Settings()
+ {
+ m_envRotCurr = 0.0f;
+ m_envRotDest = 0.0f;
+ m_lightDir[0] = -0.8f;
+ m_lightDir[1] = 0.2f;
+ m_lightDir[2] = -0.5f;
+ m_lightCol[0] = 1.0f;
+ m_lightCol[1] = 1.0f;
+ m_lightCol[2] = 1.0f;
+ m_glossiness = 0.7f;
+ m_exposure = 0.0f;
+ m_bgType = 3.0f;
+ m_radianceSlider = 2.0f;
+ m_reflectivity = 0.85f;
+ m_rgbDiff[0] = 1.0f;
+ m_rgbDiff[1] = 1.0f;
+ m_rgbDiff[2] = 1.0f;
+ m_rgbSpec[0] = 1.0f;
+ m_rgbSpec[1] = 1.0f;
+ m_rgbSpec[2] = 1.0f;
+ m_lod = 0.0f;
+ m_doDiffuse = false;
+ m_doSpecular = false;
+ m_doDiffuseIbl = true;
+ m_doSpecularIbl = true;
+ m_showLightColorWheel = true;
+ m_showDiffColorWheel = true;
+ m_showSpecColorWheel = true;
+ m_metalOrSpec = 0;
+ m_meshSelection = 0;
+ }
- uint32_t width = 1280;
- uint32_t height = 720;
- uint32_t debug = BGFX_DEBUG_TEXT;
- uint32_t reset = 0
- | BGFX_RESET_VSYNC
- | BGFX_RESET_MSAA_X16
- ;
+ float m_envRotCurr;
+ float m_envRotDest;
+ float m_lightDir[3];
+ float m_lightCol[3];
+ float m_glossiness;
+ float m_exposure;
+ float m_radianceSlider;
+ float m_bgType;
+ float m_reflectivity;
+ float m_rgbDiff[3];
+ float m_rgbSpec[3];
+ float m_lod;
+ bool m_doDiffuse;
+ bool m_doSpecular;
+ bool m_doDiffuseIbl;
+ bool m_doSpecularIbl;
+ bool m_showLightColorWheel;
+ bool m_showDiffColorWheel;
+ bool m_showSpecColorWheel;
+ int32_t m_metalOrSpec;
+ int32_t m_meshSelection;
+};
- bgfx::init(args.m_type, args.m_pciId);
- bgfx::reset(width, height, reset);
+class ExampleIbl : public entry::AppI
+{
+public:
+ ExampleIbl(const char* _name, const char* _description)
+ : entry::AppI(_name, _description)
+ {
+ }
+
+ void init(int32_t _argc, const char* const* _argv, uint32_t _width, uint32_t _height) override
+ {
+ Args args(_argc, _argv);
+
+ m_width = _width;
+ m_height = _height;
+ m_debug = BGFX_DEBUG_NONE;
+ m_reset = 0
+ | BGFX_RESET_VSYNC
+ | BGFX_RESET_MSAA_X16
+ ;
+
+ bgfx::init(args.m_type, args.m_pciId);
+ bgfx::reset(m_width, m_height, m_reset);
+
+ // Enable debug text.
+ bgfx::setDebug(m_debug);
+
+ // Set views clear state.
+ bgfx::setViewClear(0
+ , BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
+ , 0x303030ff
+ , 1.0f
+ , 0
+ );
- // Enable debug text.
- bgfx::setDebug(debug);
+ // Imgui.
+ imguiCreate();
- // Set views clear state.
- bgfx::setViewClear(0
- , BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
- , 0x303030ff
- , 1.0f
- , 0
- );
+ // Uniforms.
+ m_uniforms.init();
- // Imgui.
- imguiCreate();
+ // Vertex declarations.
+ PosColorTexCoord0Vertex::init();
- // Uniforms.
- Uniforms uniforms;
- uniforms.init();
+ m_lightProbes[LightProbe::Bolonga].load("bolonga");
+ m_lightProbes[LightProbe::Kyoto ].load("kyoto");
+ m_currentLightProbe = LightProbe::Bolonga;
- // Vertex declarations.
- PosColorTexCoord0Vertex::init();
+ u_mtx = bgfx::createUniform("u_mtx", bgfx::UniformType::Mat4);
+ u_params = bgfx::createUniform("u_params", bgfx::UniformType::Vec4);
+ u_flags = bgfx::createUniform("u_flags", bgfx::UniformType::Vec4);
+ u_camPos = bgfx::createUniform("u_camPos", bgfx::UniformType::Vec4);
+ s_texCube = bgfx::createUniform("s_texCube", bgfx::UniformType::Int1);
+ s_texCubeIrr = bgfx::createUniform("s_texCubeIrr", bgfx::UniformType::Int1);
- LightProbe lightProbes[LightProbe::Count];
- lightProbes[LightProbe::Bolonga].load("bolonga");
- lightProbes[LightProbe::Kyoto ].load("kyoto");
- LightProbe::Enum currentLightProbe = LightProbe::Bolonga;
+ m_programMesh = loadProgram("vs_ibl_mesh", "fs_ibl_mesh");
+ m_programSky = loadProgram("vs_ibl_skybox", "fs_ibl_skybox");
- bgfx::UniformHandle u_mtx = bgfx::createUniform("u_mtx", bgfx::UniformType::Mat4);
- bgfx::UniformHandle u_params = bgfx::createUniform("u_params", bgfx::UniformType::Vec4);
- bgfx::UniformHandle u_flags = bgfx::createUniform("u_flags", bgfx::UniformType::Vec4);
- bgfx::UniformHandle u_camPos = bgfx::createUniform("u_camPos", bgfx::UniformType::Vec4);
- bgfx::UniformHandle s_texCube = bgfx::createUniform("s_texCube", bgfx::UniformType::Int1);
- bgfx::UniformHandle s_texCubeIrr = bgfx::createUniform("s_texCubeIrr", bgfx::UniformType::Int1);
+ m_meshBunny = meshLoad("meshes/bunny.bin");
+ m_meshOrb = meshLoad("meshes/orb.bin");
+ }
- bgfx::ProgramHandle programMesh = loadProgram("vs_ibl_mesh", "fs_ibl_mesh");
- bgfx::ProgramHandle programSky = loadProgram("vs_ibl_skybox", "fs_ibl_skybox");
+ virtual int shutdown() override
+ {
+ meshUnload(m_meshBunny);
+ meshUnload(m_meshOrb);
- Mesh* meshBunny;
- meshBunny = meshLoad("meshes/bunny.bin");
+ // Cleanup.
+ bgfx::destroy(m_programMesh);
+ bgfx::destroy(m_programSky);
- Mesh* meshOrb;
- meshOrb = meshLoad("meshes/orb.bin");
+ bgfx::destroy(u_camPos);
+ bgfx::destroy(u_flags);
+ bgfx::destroy(u_params);
+ bgfx::destroy(u_mtx);
- Camera camera;
- Mouse mouse;
+ bgfx::destroy(s_texCube);
+ bgfx::destroy(s_texCubeIrr);
- struct Settings
- {
- Settings()
+ for (uint8_t ii = 0; ii < LightProbe::Count; ++ii)
{
- m_envRotCurr = 0.0f;
- m_envRotDest = 0.0f;
- m_lightDir[0] = -0.8f;
- m_lightDir[1] = 0.2f;
- m_lightDir[2] = -0.5f;
- m_lightCol[0] = 1.0f;
- m_lightCol[1] = 1.0f;
- m_lightCol[2] = 1.0f;
- m_glossiness = 0.7f;
- m_exposure = 0.0f;
- m_bgType = 3.0f;
- m_radianceSlider = 2.0f;
- m_reflectivity = 0.85f;
- m_rgbDiff[0] = 1.0f;
- m_rgbDiff[1] = 1.0f;
- m_rgbDiff[2] = 1.0f;
- m_rgbSpec[0] = 1.0f;
- m_rgbSpec[1] = 1.0f;
- m_rgbSpec[2] = 1.0f;
- m_lod = 0.0f;
- m_doDiffuse = false;
- m_doSpecular = false;
- m_doDiffuseIbl = true;
- m_doSpecularIbl = true;
- m_showLightColorWheel = true;
- m_showDiffColorWheel = true;
- m_showSpecColorWheel = true;
- m_metalOrSpec = 0;
- m_meshSelection = 0;
- m_crossCubemapPreview = ImguiCubemap::Latlong;
+ m_lightProbes[ii].destroy();
}
- float m_envRotCurr;
- float m_envRotDest;
- float m_lightDir[3];
- float m_lightCol[3];
- float m_glossiness;
- float m_exposure;
- float m_radianceSlider;
- float m_bgType;
- float m_reflectivity;
- float m_rgbDiff[3];
- float m_rgbSpec[3];
- float m_lod;
- bool m_doDiffuse;
- bool m_doSpecular;
- bool m_doDiffuseIbl;
- bool m_doSpecularIbl;
- bool m_showLightColorWheel;
- bool m_showDiffColorWheel;
- bool m_showSpecColorWheel;
- uint8_t m_metalOrSpec;
- uint8_t m_meshSelection;
- ImguiCubemap::Enum m_crossCubemapPreview;
- };
+ m_uniforms.destroy();
- Settings settings;
+ imguiDestroy();
- int32_t leftScrollArea = 0;
+ // Shutdown bgfx.
+ bgfx::shutdown();
- entry::MouseState mouseState;
- while (!entry::processEvents(width, height, debug, reset, &mouseState) )
- {
- imguiBeginFrame(mouseState.m_mx
- , mouseState.m_my
- , (mouseState.m_buttons[entry::MouseButton::Left ] ? IMGUI_MBUT_LEFT : 0)
- | (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
- | (mouseState.m_buttons[entry::MouseButton::Middle] ? IMGUI_MBUT_MIDDLE : 0)
- , mouseState.m_mz
- , uint16_t(width)
- , uint16_t(height)
- );
+ return 0;
+ }
- static int32_t rightScrollArea = 0;
- imguiBeginScrollArea("", width - 256 - 10, 10, 256, 700, &rightScrollArea);
-
- imguiLabel("Environment light:");
- imguiIndent();
- imguiBool("IBL Diffuse", settings.m_doDiffuseIbl);
- imguiBool("IBL Specular", settings.m_doSpecularIbl);
- currentLightProbe = LightProbe::Enum(imguiTabs(
- uint8_t(currentLightProbe)
- , true
- , ImguiAlign::LeftIndented
- , 16
- , 2
- , 2
- , "Bolonga"
- , "Kyoto"
- ) );
- if (imguiCube(lightProbes[currentLightProbe].m_tex, settings.m_lod, settings.m_crossCubemapPreview, true) )
- {
- settings.m_crossCubemapPreview = ImguiCubemap::Enum( (settings.m_crossCubemapPreview+1) % ImguiCubemap::Count);
- }
- imguiSlider("Texture LOD", settings.m_lod, 0.0f, 10.1f, 0.1f);
- imguiUnindent();
-
- imguiSeparator(8);
- imguiLabel("Directional light:");
- imguiIndent();
- imguiBool("Diffuse", settings.m_doDiffuse);
- imguiBool("Specular", settings.m_doSpecular);
- const bool doDirectLighting = settings.m_doDiffuse || settings.m_doSpecular;
- imguiSlider("Light direction X", settings.m_lightDir[0], -1.0f, 1.0f, 0.1f, doDirectLighting);
- imguiSlider("Light direction Y", settings.m_lightDir[1], -1.0f, 1.0f, 0.1f, doDirectLighting);
- imguiSlider("Light direction Z", settings.m_lightDir[2], -1.0f, 1.0f, 0.1f, doDirectLighting);
- imguiColorWheel("Color:", settings.m_lightCol, settings.m_showLightColorWheel, 0.6f, doDirectLighting);
- imguiUnindent();
-
- imguiSeparator(8);
- imguiLabel("Background:");
- imguiIndent();
+ bool update() override
+ {
+ if (!entry::processEvents(m_width, m_height, m_debug, m_reset, &m_mouseState) )
{
- int32_t selection;
- if (0.0f == settings.m_bgType) { selection = UINT8_C(0); }
- else if (7.0f == settings.m_bgType) { selection = UINT8_C(2); }
- else { selection = UINT8_C(1); }
-
- selection = imguiTabs(
- uint8_t(selection)
- , true
- , ImguiAlign::LeftIndented
- , 16
- , 2
- , 3
- , "Skybox"
- , "Radiance"
- , "Irradiance"
- );
- if (0 == selection) { settings.m_bgType = 0.0f; }
- else if (2 == selection) { settings.m_bgType = 7.0f; }
- else { settings.m_bgType = settings.m_radianceSlider; }
- const bool isRadiance = (selection == 1);
- imguiSlider("Mip level", settings.m_radianceSlider, 1.0f, 6.0f, 0.1f, isRadiance);
- }
- imguiUnindent();
+ imguiBeginFrame(m_mouseState.m_mx
+ , m_mouseState.m_my
+ , (m_mouseState.m_buttons[entry::MouseButton::Left ] ? IMGUI_MBUT_LEFT : 0)
+ | (m_mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
+ | (m_mouseState.m_buttons[entry::MouseButton::Middle] ? IMGUI_MBUT_MIDDLE : 0)
+ , m_mouseState.m_mz
+ , uint16_t(m_width)
+ , uint16_t(m_height)
+ );
+
+ showExampleDialog(this);
+
+ ImGui::SetNextWindowPos(
+ ImVec2(m_width - m_width / 5.0f - 10.0f, 10.0f)
+ , ImGuiSetCond_FirstUseEver
+ );
+ ImGui::Begin("Settings"
+ , NULL
+ , ImVec2(m_width / 5.0f, m_height - 20.0f)
+ , ImGuiWindowFlags_AlwaysAutoResize
+ );
+ ImGui::PushItemWidth(180.0f);
+
+ ImGui::Text("Environment light:");
+ ImGui::Indent();
+ ImGui::Checkbox("IBL Diffuse", &m_settings.m_doDiffuseIbl);
+ ImGui::Checkbox("IBL Specular", &m_settings.m_doSpecularIbl);
- imguiSeparator(8);
- imguiLabel("Post processing:");
- imguiIndent();
- imguiSlider("Exposure", settings.m_exposure, -4.0f, 4.0f, 0.1f);
- imguiUnindent();
+ {
+ float tabWidth = ImGui::GetContentRegionAvailWidth() / 2.0f;
+ if (ImGui::TabButton("Bolonga", tabWidth, m_currentLightProbe == LightProbe::Bolonga) )
+ {
+ m_currentLightProbe = LightProbe::Bolonga;
+ }
- imguiSeparator();
+ ImGui::SameLine(0.0f,0.0f);
- imguiEndScrollArea();
+ if (ImGui::TabButton("Kyoto", tabWidth, m_currentLightProbe == LightProbe::Kyoto) )
+ {
+ m_currentLightProbe = LightProbe::Kyoto;
+ }
+ }
- imguiBeginScrollArea("", 10, 70, 256, 636, &leftScrollArea);
+ ImGui::SliderFloat("Texture LOD", &m_settings.m_lod, 0.0f, 10.1f);
+ ImGui::Unindent();
- imguiLabel("Mesh:");
- imguiIndent();
- settings.m_meshSelection = uint8_t(imguiChoose(settings.m_meshSelection, "Bunny", "Orbs") );
- imguiUnindent();
+ ImGui::Separator();
+ ImGui::Text("Directional light:");
+ ImGui::Indent();
+ ImGui::Checkbox("Diffuse", &m_settings.m_doDiffuse);
+ ImGui::Checkbox("Specular", &m_settings.m_doSpecular);
+ const bool doDirectLighting = m_settings.m_doDiffuse || m_settings.m_doSpecular;
+ if (doDirectLighting)
+ {
+ ImGui::SliderFloat("Light direction X", &m_settings.m_lightDir[0], -1.0f, 1.0f);
+ ImGui::SliderFloat("Light direction Y", &m_settings.m_lightDir[1], -1.0f, 1.0f);
+ ImGui::SliderFloat("Light direction Z", &m_settings.m_lightDir[2], -1.0f, 1.0f);
+ ImGui::ColorWheel("Color:", m_settings.m_lightCol, 0.6f);
+ }
+ ImGui::Unindent();
- const bool isBunny = (0 == settings.m_meshSelection);
- if (!isBunny)
- {
- settings.m_metalOrSpec = 0;
- }
+ ImGui::Separator();
+ ImGui::Text("Background:");
+ ImGui::Indent();
+ {
+ int32_t selection;
+ if (0.0f == m_settings.m_bgType)
+ {
+ selection = UINT8_C(0);
+ }
+ else if (7.0f == m_settings.m_bgType)
+ {
+ selection = UINT8_C(2);
+ }
+ else
+ {
+ selection = UINT8_C(1);
+ }
- imguiSeparator(4);
- imguiLabel("Workflow:");
- imguiIndent();
- if (imguiCheck("Metalness", 0 == settings.m_metalOrSpec, isBunny) ) { settings.m_metalOrSpec = 0; }
- if (imguiCheck("Specular", 1 == settings.m_metalOrSpec, isBunny) ) { settings.m_metalOrSpec = 1; }
- imguiUnindent();
-
- imguiSeparator(4);
- imguiLabel("Material:");
- imguiIndent();
- imguiSlider("Glossiness", settings.m_glossiness, 0.0f, 1.0f, 0.01f, isBunny);
- imguiSlider(0 == settings.m_metalOrSpec ? "Metalness" : "Diffuse - Specular", settings.m_reflectivity, 0.0f, 1.0f, 0.01f, isBunny);
- imguiUnindent();
-
- imguiColorWheel("Diffuse:", &settings.m_rgbDiff[0], settings.m_showDiffColorWheel, 0.7f);
- imguiSeparator();
- imguiColorWheel("Specular:", &settings.m_rgbSpec[0], settings.m_showSpecColorWheel, 0.7f, (1 == settings.m_metalOrSpec) && isBunny);
-
- imguiEndScrollArea();
-
- imguiEndFrame();
-
- uniforms.m_glossiness = settings.m_glossiness;
- uniforms.m_reflectivity = settings.m_reflectivity;
- uniforms.m_exposure = settings.m_exposure;
- uniforms.m_bgType = settings.m_bgType;
- uniforms.m_metalOrSpec = float(settings.m_metalOrSpec);
- uniforms.m_doDiffuse = float(settings.m_doDiffuse);
- uniforms.m_doSpecular = float(settings.m_doSpecular);
- uniforms.m_doDiffuseIbl = float(settings.m_doDiffuseIbl);
- uniforms.m_doSpecularIbl = float(settings.m_doSpecularIbl);
- bx::memCopy(uniforms.m_rgbDiff, settings.m_rgbDiff, 3*sizeof(float) );
- bx::memCopy(uniforms.m_rgbSpec, settings.m_rgbSpec, 3*sizeof(float) );
- bx::memCopy(uniforms.m_lightDir, settings.m_lightDir, 3*sizeof(float) );
- bx::memCopy(uniforms.m_lightCol, settings.m_lightCol, 3*sizeof(float) );
-
- int64_t now = bx::getHPCounter();
- static int64_t last = now;
- const int64_t frameTime = now - last;
- last = now;
- const double freq = double(bx::getHPFrequency() );
- const double toMs = 1000.0/freq;
- const float deltaTimeSec = float(double(frameTime)/freq);
-
- // Use debug font to print information about this example.
- bgfx::dbgTextClear();
- bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/18-ibl");
- bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Image-based lighting.");
- bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);
-
- // Camera.
- const bool mouseOverGui = imguiMouseOverArea();
- mouse.update(float(mouseState.m_mx), float(mouseState.m_my), mouseState.m_mz, width, height);
- if (!mouseOverGui)
- {
- if (mouseState.m_buttons[entry::MouseButton::Left])
+ float tabWidth = ImGui::GetContentRegionAvailWidth() / 3.0f;
+ if (ImGui::TabButton("Skybox", tabWidth, selection == 0) )
+ {
+ selection = 0;
+ }
+
+ ImGui::SameLine(0.0f,0.0f);
+ if (ImGui::TabButton("Radiance", tabWidth, selection == 1) )
+ {
+ selection = 1;
+ }
+
+ ImGui::SameLine(0.0f,0.0f);
+ if (ImGui::TabButton("Irradiance", tabWidth, selection == 2) )
+ {
+ selection = 2;
+ }
+
+ if (0 == selection)
+ {
+ m_settings.m_bgType = 0.0f;
+ }
+ else if (2 == selection)
+ {
+ m_settings.m_bgType = 7.0f;
+ }
+ else
+ {
+ m_settings.m_bgType = m_settings.m_radianceSlider;
+ }
+
+ const bool isRadiance = (selection == 1);
+ if (isRadiance)
+ {
+ ImGui::SliderFloat("Mip level", &m_settings.m_radianceSlider, 1.0f, 6.0f);
+ }
+ }
+ ImGui::Unindent();
+
+ ImGui::Separator();
+ ImGui::Text("Post processing:");
+ ImGui::Indent();
+ ImGui::SliderFloat("Exposure",& m_settings.m_exposure, -4.0f, 4.0f);
+ ImGui::Unindent();
+
+ ImGui::PopItemWidth();
+ ImGui::End();
+
+ ImGui::SetNextWindowPos(
+ ImVec2(10.0f, 260.0f)
+ , ImGuiSetCond_FirstUseEver
+ );
+ ImGui::Begin("Mesh"
+ , NULL
+ , ImVec2(m_width / 5.0f, 450.0f)
+ , ImGuiWindowFlags_AlwaysAutoResize
+ );
+
+ ImGui::Text("Mesh:");
+ ImGui::Indent();
+ ImGui::RadioButton("Bunny", &m_settings.m_meshSelection, 0);
+ ImGui::RadioButton("Orbs", &m_settings.m_meshSelection, 1);
+ ImGui::Unindent();
+
+ const bool isBunny = (0 == m_settings.m_meshSelection);
+ if (!isBunny)
+ {
+ m_settings.m_metalOrSpec = 0;
+ }
+ else
{
- camera.orbit(mouse.m_dx, mouse.m_dy);
+ ImGui::Separator();
+ ImGui::Text("Workflow:");
+ ImGui::Indent();
+ ImGui::RadioButton("Metalness", &m_settings.m_metalOrSpec, 0);
+ ImGui::RadioButton("Specular", &m_settings.m_metalOrSpec, 1);
+ ImGui::Unindent();
+
+ ImGui::Separator();
+ ImGui::Text("Material:");
+ ImGui::Indent();
+ ImGui::PushItemWidth(130.0f);
+ ImGui::SliderFloat("Glossiness", &m_settings.m_glossiness, 0.0f, 1.0f);
+ ImGui::SliderFloat(0 == m_settings.m_metalOrSpec ? "Metalness" : "Diffuse - Specular", &m_settings.m_reflectivity, 0.0f, 1.0f);
+ ImGui::PopItemWidth();
+ ImGui::Unindent();
}
- else if (mouseState.m_buttons[entry::MouseButton::Right])
+
+
+ ImGui::ColorWheel("Diffuse:", &m_settings.m_rgbDiff[0], 0.7f);
+ ImGui::Separator();
+ if ( (1 == m_settings.m_metalOrSpec) && isBunny )
{
- camera.dolly(mouse.m_dx + mouse.m_dy);
+ ImGui::ColorWheel("Specular:", &m_settings.m_rgbSpec[0], 0.7f);
}
- else if (mouseState.m_buttons[entry::MouseButton::Middle])
+
+ ImGui::End();
+
+ imguiEndFrame();
+
+ m_uniforms.m_glossiness = m_settings.m_glossiness;
+ m_uniforms.m_reflectivity = m_settings.m_reflectivity;
+ m_uniforms.m_exposure = m_settings.m_exposure;
+ m_uniforms.m_bgType = m_settings.m_bgType;
+ m_uniforms.m_metalOrSpec = float(m_settings.m_metalOrSpec);
+ m_uniforms.m_doDiffuse = float(m_settings.m_doDiffuse);
+ m_uniforms.m_doSpecular = float(m_settings.m_doSpecular);
+ m_uniforms.m_doDiffuseIbl = float(m_settings.m_doDiffuseIbl);
+ m_uniforms.m_doSpecularIbl = float(m_settings.m_doSpecularIbl);
+ bx::memCopy(m_uniforms.m_rgbDiff, m_settings.m_rgbDiff, 3*sizeof(float) );
+ bx::memCopy(m_uniforms.m_rgbSpec, m_settings.m_rgbSpec, 3*sizeof(float) );
+ bx::memCopy(m_uniforms.m_lightDir, m_settings.m_lightDir, 3*sizeof(float) );
+ bx::memCopy(m_uniforms.m_lightCol, m_settings.m_lightCol, 3*sizeof(float) );
+
+ int64_t now = bx::getHPCounter();
+ static int64_t last = now;
+ const int64_t frameTime = now - last;
+ last = now;
+ const double freq = double(bx::getHPFrequency() );
+ const float deltaTimeSec = float(double(frameTime)/freq);
+
+ // Camera.
+ const bool mouseOverGui = ImGui::MouseOverArea();
+ m_mouse.update(float(m_mouseState.m_mx), float(m_mouseState.m_my), m_mouseState.m_mz, m_width, m_height);
+ if (!mouseOverGui)
{
- settings.m_envRotDest += mouse.m_dx*2.0f;
+ if (m_mouseState.m_buttons[entry::MouseButton::Left])
+ {
+ m_camera.orbit(m_mouse.m_dx, m_mouse.m_dy);
+ }
+ else if (m_mouseState.m_buttons[entry::MouseButton::Right])
+ {
+ m_camera.dolly(m_mouse.m_dx + m_mouse.m_dy);
+ }
+ else if (m_mouseState.m_buttons[entry::MouseButton::Middle])
+ {
+ m_settings.m_envRotDest += m_mouse.m_dx*2.0f;
+ }
+ else if (0 != m_mouse.m_scroll)
+ {
+ m_camera.dolly(float(m_mouse.m_scroll)*0.05f);
+ }
}
- else if (0 != mouse.m_scroll)
+ m_camera.update(deltaTimeSec);
+ bx::memCopy(m_uniforms.m_cameraPos, m_camera.m_pos.curr, 3*sizeof(float) );
+
+ // View Transform 0.
+ float view[16];
+ bx::mtxIdentity(view);
+
+ const bgfx::Caps* caps = bgfx::getCaps();
+
+ float proj[16];
+ bx::mtxOrtho(proj, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 100.0f, 0.0, caps->homogeneousDepth);
+ bgfx::setViewTransform(0, view, proj);
+
+ // View Transform 1.
+ m_camera.mtxLookAt(view);
+ bx::mtxProj(proj, 45.0f, float(m_width)/float(m_height), 0.1f, 100.0f, caps->homogeneousDepth);
+ bgfx::setViewTransform(1, view, proj);
+
+ // View rect.
+ bgfx::setViewRect(0, 0, 0, uint16_t(m_width), uint16_t(m_height) );
+ bgfx::setViewRect(1, 0, 0, uint16_t(m_width), uint16_t(m_height) );
+
+ // Env rotation.
+ const float amount = bx::fmin(deltaTimeSec/0.12f, 1.0f);
+ m_settings.m_envRotCurr = bx::flerp(m_settings.m_envRotCurr, m_settings.m_envRotDest, amount);
+
+ // Env mtx.
+ float mtxEnvView[16];
+ m_camera.envViewMtx(mtxEnvView);
+ float mtxEnvRot[16];
+ bx::mtxRotateY(mtxEnvRot, m_settings.m_envRotCurr);
+ bx::mtxMul(m_uniforms.m_mtx, mtxEnvView, mtxEnvRot); // Used for Skybox.
+
+ // Submit view 0.
+ bgfx::setTexture(0, s_texCube, m_lightProbes[m_currentLightProbe].m_tex);
+ bgfx::setTexture(1, s_texCubeIrr, m_lightProbes[m_currentLightProbe].m_texIrr);
+ bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
+ screenSpaceQuad( (float)m_width, (float)m_height, true);
+ m_uniforms.submit();
+ bgfx::submit(0, m_programSky);
+
+ // Submit view 1.
+ bx::memCopy(m_uniforms.m_mtx, mtxEnvRot, 16*sizeof(float)); // Used for IBL.
+ if (0 == m_settings.m_meshSelection)
{
- camera.dolly(float(mouse.m_scroll)*0.05f);
+ // Submit bunny.
+ float mtx[16];
+ bx::mtxSRT(mtx, 1.0f, 1.0f, 1.0f, 0.0f, bx::kPi, 0.0f, 0.0f, -0.80f, 0.0f);
+ bgfx::setTexture(0, s_texCube, m_lightProbes[m_currentLightProbe].m_tex);
+ bgfx::setTexture(1, s_texCubeIrr, m_lightProbes[m_currentLightProbe].m_texIrr);
+ m_uniforms.submit();
+ meshSubmit(m_meshBunny, 1, m_programMesh, mtx);
}
- }
- camera.update(deltaTimeSec);
- bx::memCopy(uniforms.m_cameraPos, camera.m_pos.curr, 3*sizeof(float) );
-
- // View Transform 0.
- float view[16];
- float proj[16];
- bx::mtxIdentity(view);
- bx::mtxOrtho(proj, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 100.0f);
- bgfx::setViewTransform(0, view, proj);
-
- // View Transform 1.
- camera.mtxLookAt(view);
- bx::mtxProj(proj, 45.0f, float(width)/float(height), 0.1f, 100.0f, bgfx::getCaps()->homogeneousDepth);
- bgfx::setViewTransform(1, view, proj);
-
- // View rect.
- bgfx::setViewRect(0, 0, 0, uint16_t(width), uint16_t(height) );
- bgfx::setViewRect(1, 0, 0, uint16_t(width), uint16_t(height) );
-
- // Env rotation.
- const float amount = bx::fmin(deltaTimeSec/0.12f, 1.0f);
- settings.m_envRotCurr = bx::flerp(settings.m_envRotCurr, settings.m_envRotDest, amount);
-
- // Env mtx.
- float mtxEnvView[16];
- camera.envViewMtx(mtxEnvView);
- float mtxEnvRot[16];
- bx::mtxRotateY(mtxEnvRot, settings.m_envRotCurr);
- bx::mtxMul(uniforms.m_mtx, mtxEnvView, mtxEnvRot); // Used for Skybox.
-
- // Submit view 0.
- bgfx::setTexture(0, s_texCube, lightProbes[currentLightProbe].m_tex);
- bgfx::setTexture(1, s_texCubeIrr, lightProbes[currentLightProbe].m_texIrr);
- bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
- screenSpaceQuad( (float)width, (float)height, true);
- uniforms.submit();
- bgfx::submit(0, programSky);
-
- // Submit view 1.
- bx::memCopy(uniforms.m_mtx, mtxEnvRot, 16*sizeof(float)); // Used for IBL.
- if (0 == settings.m_meshSelection)
- {
- // Submit bunny.
- float mtx[16];
- bx::mtxSRT(mtx, 1.0f, 1.0f, 1.0f, 0.0f, bx::pi, 0.0f, 0.0f, -0.80f, 0.0f);
- bgfx::setTexture(0, s_texCube, lightProbes[currentLightProbe].m_tex);
- bgfx::setTexture(1, s_texCubeIrr, lightProbes[currentLightProbe].m_texIrr);
- uniforms.submit();
- meshSubmit(meshBunny, 1, programMesh, mtx);
- }
- else
- {
- // Submit orbs.
- for (float yy = 0, yend = 5.0f; yy < yend; yy+=1.0f)
+ else
{
- for (float xx = 0, xend = 5.0f; xx < xend; xx+=1.0f)
+ // Submit orbs.
+ for (float yy = 0, yend = 5.0f; yy < yend; yy+=1.0f)
{
- const float scale = 1.2f;
- const float spacing = 2.2f;
- const float yAdj = -0.8f;
-
- float mtx[16];
- bx::mtxSRT(mtx
+ for (float xx = 0, xend = 5.0f; xx < xend; xx+=1.0f)
+ {
+ const float scale = 1.2f;
+ const float spacing = 2.2f;
+ const float yAdj = -0.8f;
+
+ float mtx[16];
+ bx::mtxSRT(mtx
, scale/xend
, scale/xend
, scale/xend
@@ -790,49 +877,57 @@ int _main_(int _argc, char** _argv)
, 0.0f
);
- uniforms.m_glossiness = xx*(1.0f/xend);
- uniforms.m_reflectivity = (yend-yy)*(1.0f/yend);
- uniforms.m_metalOrSpec = 0.0f;
- uniforms.submit();
+ m_uniforms.m_glossiness = xx*(1.0f/xend);
+ m_uniforms.m_reflectivity = (yend-yy)*(1.0f/yend);
+ m_uniforms.m_metalOrSpec = 0.0f;
+ m_uniforms.submit();
- bgfx::setTexture(0, s_texCube, lightProbes[currentLightProbe].m_tex);
- bgfx::setTexture(1, s_texCubeIrr, lightProbes[currentLightProbe].m_texIrr);
- meshSubmit(meshOrb, 1, programMesh, mtx);
+ bgfx::setTexture(0, s_texCube, m_lightProbes[m_currentLightProbe].m_tex);
+ bgfx::setTexture(1, s_texCubeIrr, m_lightProbes[m_currentLightProbe].m_texIrr);
+ meshSubmit(m_meshOrb, 1, m_programMesh, mtx);
+ }
}
}
+
+ // Advance to next frame. Rendering thread will be kicked to
+ // process submitted rendering primitives.
+ bgfx::frame();
+
+ return true;
}
- // Advance to next frame. Rendering thread will be kicked to
- // process submitted rendering primitives.
- bgfx::frame();
+ return false;
}
- meshUnload(meshBunny);
- meshUnload(meshOrb);
+ uint32_t m_width;
+ uint32_t m_height;
+ uint32_t m_debug;
+ uint32_t m_reset;
+ entry::MouseState m_mouseState;
- // Cleanup.
- bgfx::destroyProgram(programMesh);
- bgfx::destroyProgram(programSky);
+ Uniforms m_uniforms;
- bgfx::destroyUniform(u_camPos);
- bgfx::destroyUniform(u_flags);
- bgfx::destroyUniform(u_params);
- bgfx::destroyUniform(u_mtx);
+ LightProbe m_lightProbes[LightProbe::Count];
+ LightProbe::Enum m_currentLightProbe;
- bgfx::destroyUniform(s_texCube);
- bgfx::destroyUniform(s_texCubeIrr);
+ bgfx::UniformHandle u_mtx;
+ bgfx::UniformHandle u_params;
+ bgfx::UniformHandle u_flags;
+ bgfx::UniformHandle u_camPos;
+ bgfx::UniformHandle s_texCube;
+ bgfx::UniformHandle s_texCubeIrr;
- for (uint8_t ii = 0; ii < LightProbe::Count; ++ii)
- {
- lightProbes[ii].destroy();
- }
+ bgfx::ProgramHandle m_programMesh;
+ bgfx::ProgramHandle m_programSky;
- uniforms.destroy();
+ Mesh* m_meshBunny;
+ Mesh* m_meshOrb;
+ Camera m_camera;
+ Mouse m_mouse;
- imguiDestroy();
+ Settings m_settings;
+};
- // Shutdown bgfx.
- bgfx::shutdown();
+} // namespace
- return 0;
-}
+ENTRY_IMPLEMENT_MAIN(ExampleIbl, "18-ibl", "Image-based lighting.");