diff options
Diffstat (limited to '3rdparty/bgfx/examples/05-instancing')
4 files changed, 159 insertions, 73 deletions
diff --git a/3rdparty/bgfx/examples/05-instancing/fs_instancing.sc b/3rdparty/bgfx/examples/05-instancing/fs_instancing.sc index 99ec64685ad..8ea959c83db 100644 --- a/3rdparty/bgfx/examples/05-instancing/fs_instancing.sc +++ b/3rdparty/bgfx/examples/05-instancing/fs_instancing.sc @@ -1,8 +1,8 @@ $input v_color0 /* - * Copyright 2011-2018 Branimir Karadzic. All rights reserved. - * License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause + * Copyright 2011-2022 Branimir Karadzic. All rights reserved. + * License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE */ #include "../common/common.sh" diff --git a/3rdparty/bgfx/examples/05-instancing/instancing.cpp b/3rdparty/bgfx/examples/05-instancing/instancing.cpp index d471efb87fd..eac31fc25c0 100644 --- a/3rdparty/bgfx/examples/05-instancing/instancing.cpp +++ b/3rdparty/bgfx/examples/05-instancing/instancing.cpp @@ -1,6 +1,6 @@ /* - * Copyright 2011-2018 Branimir Karadzic. All rights reserved. - * License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause + * Copyright 2011-2022 Branimir Karadzic. All rights reserved. + * License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE */ #include "common.h" @@ -19,17 +19,17 @@ struct PosColorVertex static void init() { - ms_decl + ms_layout .begin() .add(bgfx::Attrib::Position, 3, bgfx::AttribType::Float) .add(bgfx::Attrib::Color0, 4, bgfx::AttribType::Uint8, true) .end(); }; - static bgfx::VertexDecl ms_decl; + static bgfx::VertexLayout ms_layout; }; -bgfx::VertexDecl PosColorVertex::ms_decl; +bgfx::VertexLayout PosColorVertex::ms_layout; static PosColorVertex s_cubeVertices[8] = { @@ -62,8 +62,8 @@ static const uint16_t s_cubeIndices[36] = class ExampleInstancing : public entry::AppI { public: - ExampleInstancing(const char* _name, const char* _description) - : entry::AppI(_name, _description) + ExampleInstancing(const char* _name, const char* _description, const char* _url) + : entry::AppI(_name, _description, _url) { } @@ -75,10 +75,16 @@ public: m_height = _height; m_debug = BGFX_DEBUG_TEXT; m_reset = BGFX_RESET_VSYNC; + m_useInstancing = true; + m_lastFrameMissing = 0; + m_sideSize = 11; bgfx::Init init; init.type = args.m_type; init.vendorId = args.m_pciId; + init.platformData.nwh = entry::getNativeWindowHandle(entry::kDefaultWindowHandle); + init.platformData.ndt = entry::getNativeDisplayHandle(); + init.platformData.type = entry::getNativeWindowHandleType(entry::kDefaultWindowHandle); init.resolution.width = m_width; init.resolution.height = m_height; init.resolution.reset = m_reset; @@ -101,7 +107,7 @@ public: // Create static vertex buffer. m_vbh = bgfx::createVertexBuffer( bgfx::makeRef(s_cubeVertices, sizeof(s_cubeVertices) ) - , PosColorVertex::ms_decl + , PosColorVertex::ms_layout ); // Create static index buffer. @@ -111,6 +117,7 @@ public: // Create program from shaders. m_program = loadProgram("vs_instancing", "fs_instancing"); + m_program_non_instanced = loadProgram("vs_cubes", "fs_cubes"); m_timeOffset = bx::getHPCounter(); @@ -125,6 +132,7 @@ public: bgfx::destroy(m_ibh); bgfx::destroy(m_vbh); bgfx::destroy(m_program); + bgfx::destroy(m_program_non_instanced); // Shutdown bgfx. bgfx::shutdown(); @@ -148,6 +156,47 @@ public: showExampleDialog(this); + ImGui::SetNextWindowPos( + ImVec2(m_width - m_width / 5.0f - 10.0f, 10.0f) + , ImGuiCond_FirstUseEver + ); + ImGui::SetNextWindowSize( + ImVec2(m_width / 5.0f, m_height / 2.0f) + , ImGuiCond_FirstUseEver + ); + ImGui::Begin("Settings" + , NULL + , 0 + ); + + // Get renderer capabilities info. + const bgfx::Caps* caps = bgfx::getCaps(); + + // Check if instancing is supported. + const bool instancingSupported = 0 != (BGFX_CAPS_INSTANCING & caps->supported); + m_useInstancing &= instancingSupported; + + ImGui::Text("%d draw calls", bgfx::getStats()->numDraw); + + ImGui::PushEnabled(instancingSupported); + ImGui::Checkbox("Use Instancing", &m_useInstancing); + ImGui::PopEnabled(); + + ImGui::Text("Grid Side Size:"); + ImGui::SliderInt("##size", (int*)&m_sideSize, 1, 512); + + if (m_lastFrameMissing > 0) + { + ImGui::TextColored(ImVec4(1.0f, 0.0f, 0.0f, 1.0f), "Couldn't draw %d cubes last frame", m_lastFrameMissing); + } + + if (bgfx::getStats()->numDraw >= bgfx::getCaps()->limits.maxDrawCalls) + { + ImGui::TextColored(ImVec4(1.0f, 0.0f, 0.0f, 1.0f), "Draw call limit reached!"); + } + + ImGui::End(); + imguiEndFrame(); // Set view 0 default viewport. @@ -159,80 +208,111 @@ public: float time = (float)( (bx::getHPCounter() - m_timeOffset)/double(bx::getHPFrequency() ) ); - // Get renderer capabilities info. - const bgfx::Caps* caps = bgfx::getCaps(); - - // Check if instancing is supported. - if (0 == (BGFX_CAPS_INSTANCING & caps->supported) ) + if (!instancingSupported) { // When instancing is not supported by GPU, implement alternative // code path that doesn't use instancing. bool blink = uint32_t(time*3.0f)&1; bgfx::dbgTextPrintf(0, 0, blink ? 0x4f : 0x04, " Instancing is not supported by GPU. "); + + m_useInstancing = false; } - else + + const bx::Vec3 at = { 0.0f, 0.0f, 0.0f }; + const bx::Vec3 eye = { 0.0f, 0.0f, -35.0f }; + + // Set view and projection matrix for view 0. { - const bx::Vec3 at = { 0.0f, 0.0f, 0.0f }; - const bx::Vec3 eye = { 0.0f, 0.0f, -35.0f }; + float view[16]; + bx::mtxLookAt(view, eye, at); - // Set view and projection matrix for view 0. - { - float view[16]; - bx::mtxLookAt(view, eye, at); + float proj[16]; + bx::mtxProj(proj, 60.0f, float(m_width)/float(m_height), 0.1f, 100.0f, bgfx::getCaps()->homogeneousDepth); + bgfx::setViewTransform(0, view, proj); - float proj[16]; - bx::mtxProj(proj, 60.0f, float(m_width)/float(m_height), 0.1f, 100.0f, bgfx::getCaps()->homogeneousDepth); - bgfx::setViewTransform(0, view, proj); + // Set view 0 default viewport. + bgfx::setViewRect(0, 0, 0, uint16_t(m_width), uint16_t(m_height) ); + } - // Set view 0 default viewport. - bgfx::setViewRect(0, 0, 0, uint16_t(m_width), uint16_t(m_height) ); - } + m_lastFrameMissing = 0; + if (m_useInstancing) + { // 80 bytes stride = 64 bytes for 4x4 matrix + 16 bytes for RGBA color. const uint16_t instanceStride = 80; - // 11x11 cubes - const uint32_t numInstances = 121; + // to total number of instances to draw + uint32_t totalCubes = m_sideSize * m_sideSize; + + // figure out how big of a buffer is available + uint32_t drawnCubes = bgfx::getAvailInstanceDataBuffer(totalCubes, instanceStride); + + // save how many we couldn't draw due to buffer room so we can display it + m_lastFrameMissing = totalCubes - drawnCubes; + + bgfx::InstanceDataBuffer idb; + bgfx::allocInstanceDataBuffer(&idb, drawnCubes, instanceStride); - if (numInstances == bgfx::getAvailInstanceDataBuffer(numInstances, instanceStride) ) + uint8_t* data = idb.data; + + for (uint32_t ii = 0; ii < drawnCubes; ++ii) { - bgfx::InstanceDataBuffer idb; - bgfx::allocInstanceDataBuffer(&idb, numInstances, instanceStride); + uint32_t yy = ii / m_sideSize; + uint32_t xx = ii % m_sideSize; + + float* mtx = (float*)data; + bx::mtxRotateXY(mtx, time + xx * 0.21f, time + yy * 0.37f); + mtx[12] = -15.0f + float(xx) * 3.0f; + mtx[13] = -15.0f + float(yy) * 3.0f; + mtx[14] = 0.0f; + + float* color = (float*)&data[64]; + color[0] = bx::sin(time + float(xx) / 11.0f) * 0.5f + 0.5f; + color[1] = bx::cos(time + float(yy) / 11.0f) * 0.5f + 0.5f; + color[2] = bx::sin(time * 3.0f) * 0.5f + 0.5f; + color[3] = 1.0f; + + data += instanceStride; + } + + // Set vertex and index buffer. + bgfx::setVertexBuffer(0, m_vbh); + bgfx::setIndexBuffer(m_ibh); - uint8_t* data = idb.data; + // Set instance data buffer. + bgfx::setInstanceDataBuffer(&idb); - // Write instance data for 11x11 cubes. - for (uint32_t yy = 0; yy < 11; ++yy) + // Set render states. + bgfx::setState(BGFX_STATE_DEFAULT); + + // Submit primitive for rendering to view 0. + bgfx::submit(0, m_program); + } + else + { + // non-instanced path + for (uint32_t yy = 0; yy < m_sideSize; ++yy) + { + for (uint32_t xx = 0; xx < m_sideSize; ++xx) { - for (uint32_t xx = 0; xx < 11; ++xx) - { - float* mtx = (float*)data; - bx::mtxRotateXY(mtx, time + xx*0.21f, time + yy*0.37f); - mtx[12] = -15.0f + float(xx)*3.0f; - mtx[13] = -15.0f + float(yy)*3.0f; - mtx[14] = 0.0f; - - float* color = (float*)&data[64]; - color[0] = bx::sin(time+float(xx)/11.0f)*0.5f+0.5f; - color[1] = bx::cos(time+float(yy)/11.0f)*0.5f+0.5f; - color[2] = bx::sin(time*3.0f)*0.5f+0.5f; - color[3] = 1.0f; - - data += instanceStride; - } - } + float mtx[16]; + bx::mtxRotateXY(mtx, time + xx * 0.21f, time + yy * 0.37f); + mtx[12] = -15.0f + float(xx) * 3.0f; + mtx[13] = -15.0f + float(yy) * 3.0f; + mtx[14] = 0.0f; - // Set vertex and index buffer. - bgfx::setVertexBuffer(0, m_vbh); - bgfx::setIndexBuffer(m_ibh); + // Set model matrix for rendering. + bgfx::setTransform(mtx); - // Set instance data buffer. - bgfx::setInstanceDataBuffer(&idb); + // Set vertex and index buffer. + bgfx::setVertexBuffer(0, m_vbh); + bgfx::setIndexBuffer(m_ibh); - // Set render states. - bgfx::setState(BGFX_STATE_DEFAULT); + // Set render states. + bgfx::setState(BGFX_STATE_DEFAULT); - // Submit primitive for rendering to view 0. - bgfx::submit(0, m_program); + // Submit primitive for rendering to view 0. + bgfx::submit(0, m_program_non_instanced); + } } } @@ -252,13 +332,23 @@ public: uint32_t m_height; uint32_t m_debug; uint32_t m_reset; + bool m_useInstancing; + uint32_t m_lastFrameMissing; + uint32_t m_sideSize; + bgfx::VertexBufferHandle m_vbh; bgfx::IndexBufferHandle m_ibh; bgfx::ProgramHandle m_program; + bgfx::ProgramHandle m_program_non_instanced; int64_t m_timeOffset; }; } // namespace -ENTRY_IMPLEMENT_MAIN(ExampleInstancing, "05-instancing", "Geometry instancing."); +ENTRY_IMPLEMENT_MAIN( + ExampleInstancing + , "05-instancing" + , "Geometry instancing." + , "https://bkaradzic.github.io/bgfx/examples.html#instancing" + ); diff --git a/3rdparty/bgfx/examples/05-instancing/makefile b/3rdparty/bgfx/examples/05-instancing/makefile index 171709170a4..19c81e43692 100644 --- a/3rdparty/bgfx/examples/05-instancing/makefile +++ b/3rdparty/bgfx/examples/05-instancing/makefile @@ -1,6 +1,6 @@ # -# Copyright 2011-2018 Branimir Karadzic. All rights reserved. -# License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause +# Copyright 2011-2022 Branimir Karadzic. All rights reserved. +# License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE # BGFX_DIR=../.. diff --git a/3rdparty/bgfx/examples/05-instancing/vs_instancing.sc b/3rdparty/bgfx/examples/05-instancing/vs_instancing.sc index b48a802b1b4..5d952e65c98 100644 --- a/3rdparty/bgfx/examples/05-instancing/vs_instancing.sc +++ b/3rdparty/bgfx/examples/05-instancing/vs_instancing.sc @@ -2,21 +2,17 @@ $input a_position, a_color0, i_data0, i_data1, i_data2, i_data3, i_data4 $output v_color0 /* - * Copyright 2011-2018 Branimir Karadzic. All rights reserved. - * License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause + * Copyright 2011-2022 Branimir Karadzic. All rights reserved. + * License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE */ #include "../common/common.sh" void main() { - mat4 model; - model[0] = i_data0; - model[1] = i_data1; - model[2] = i_data2; - model[3] = i_data3; + mat4 model = mtxFromCols(i_data0, i_data1, i_data2, i_data3); - vec4 worldPos = instMul(model, vec4(a_position, 1.0) ); + vec4 worldPos = mul(model, vec4(a_position, 1.0) ); gl_Position = mul(u_viewProj, worldPos); v_color0 = a_color0*i_data4; } |