mirror of https://github.com/bkaradzic/bgfx
Added example-29-debugdraw.
This commit is contained in:
Branimir Karadžić
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3e75fb4fbd
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/*
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* Copyright 2011-2015 Branimir Karadzic. All rights reserved.
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* License: http://www.opensource.org/licenses/BSD-2-Clause
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*/
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#include "common.h"
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#include "bgfx_utils.h"
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#include <entry/cmd.h>
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#include <entry/input.h>
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#include "camera.h"
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#include <bx/uint32_t.h>
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#include "../common/debugdraw/debugdraw.h"
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class DebugDrawApp : public entry::AppI
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{
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void init(int _argc, char** _argv) BX_OVERRIDE
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{
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Args args(_argc, _argv);
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m_width = 1280;
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m_height = 720;
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m_debug = BGFX_DEBUG_TEXT;
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m_reset = BGFX_RESET_VSYNC | BGFX_RESET_MSAA_X16;
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bgfx::init(args.m_type, args.m_pciId);
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bgfx::reset(m_width, m_height, m_reset);
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// Enable m_debug text.
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bgfx::setDebug(m_debug);
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// Set view 0 clear state.
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bgfx::setViewClear(0
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, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
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, 0x303030ff
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, 1.0f
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, 0
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);
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m_timeOffset = bx::getHPCounter();
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cameraCreate();
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const float initialPos[3] = { 0.0f, 2.0f, -12.0f };
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cameraSetPosition(initialPos);
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cameraSetVerticalAngle(0.0f);
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ddInit();
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}
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virtual int shutdown() BX_OVERRIDE
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{
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ddShutdown();
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cameraDestroy();
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// Shutdown bgfx.
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bgfx::shutdown();
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return 0;
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}
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bool update() BX_OVERRIDE
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{
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if (!entry::processEvents(m_width, m_height, m_debug, m_reset, &m_mouseState) )
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{
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// Set view 0 default viewport.
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bgfx::setViewRect(0, 0, 0, m_width, m_height);
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int64_t now = bx::getHPCounter() - m_timeOffset;
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static int64_t last = now;
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const int64_t frameTime = now - last;
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last = now;
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const double freq = double(bx::getHPFrequency() );
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const double toMs = 1000.0/freq;
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const float deltaTime = float(frameTime/freq);
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// Use debug font to print information about this example.
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bgfx::dbgTextClear();
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bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/29-debugdraw");
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bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Debug draw.");
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bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);
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// Update camera.
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cameraUpdate(deltaTime, m_mouseState);
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float view[16];
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cameraGetViewMtx(view);
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float proj[16];
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bx::mtxProj(proj, 60.0f, float(m_width)/float(m_height), 0.1f, 100.0f);
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bgfx::setViewTransform(0, view, proj);
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float zero[3] = {};
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float mvp[16];
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float eye[] = { 5.0f, 10.0f, 5.0f };
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bx::mtxLookAt(view, eye, zero);
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bx::mtxProj(proj, 45.0f, float(m_width)/float(m_height), 1.0f, 15.0f);
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bx::mtxMul(mvp, view, proj);
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ddBegin(0);
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ddDrawAxis(0.0f, 0.0f, 0.0f);
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ddPush();
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ddSetColor(0xff00ff00);
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Aabb aabb =
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{
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{ 5.0f, 1.0f, 1.0f },
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{ 10.0f, 5.0f, 5.0f },
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};
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ddDraw(aabb);
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ddPop();
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float time = float(now/freq);
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Obb obb;
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bx::mtxRotateX(obb.m_mtx, time);
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ddSetWireframe(true);
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ddDraw(obb);
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ddSetColor(0xffffffff);
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bx::mtxSRT(obb.m_mtx, 1.0f, 1.0f, 1.0f, 0.0f, time, 0.0f, 3.0f, 0.0f, 0.0f);
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ddSetWireframe(false);
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ddDraw(obb);
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ddSetTranslate(0.0f, -2.0f, 0.0f);
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ddDrawGrid(Axis::Y, zero, 20, 1.0f);
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ddSetTransform(NULL);
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ddDrawFrustum(mvp);
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ddPush();
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Sphere sphere = { { 0.0f, 5.0f, 0.0f }, 1.0f };
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ddSetColor(0xfff0c0ff);
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ddSetWireframe(true);
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ddSetLod(3);
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ddDraw(sphere);
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ddSetWireframe(false);
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ddSetColor(0xf0ffc0ff);
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sphere.m_center[0] = -2.0f;
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ddSetLod(2);
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ddDraw(sphere);
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ddSetColor(0xc0f0ffff);
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sphere.m_center[0] = -4.0f;
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ddSetLod(1);
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ddDraw(sphere);
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ddSetColor(0xffc0ff00);
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sphere.m_center[0] = -6.0f;
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ddSetLod(0);
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ddDraw(sphere);
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ddPop();
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ddSetColor(0xffffffff);
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ddPush();
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ddSetStipple(true, 1.0f, time*0.1f);
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ddSetColor(0xff0000ff);
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{
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float normal[3] = { 0.0f, 0.0f, 1.0f };
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float center[3] = { -8.0f, 0.0f, 0.0f };
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ddDrawCircle(normal, center, 1.0f, 0.5f + bx::fsin(time*10.0f) );
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}
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ddPop();
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ddPush();
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ddSetStipple(true, 1.0f, -time*0.1f);
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ddDrawCircle(Axis::Z, -8.0f, 0.0f, 0.0f, 1.25f, 2.0f);
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ddPop();
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ddDrawOrb(-11.0f, 0.0f, 0.0f, 1.0f);
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ddEnd();
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// Advance to next frame. Rendering thread will be kicked to
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// process submitted rendering primitives.
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bgfx::frame();
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return true;
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}
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return false;
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}
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entry::MouseState m_mouseState;
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int64_t m_timeOffset;
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uint32_t m_width;
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uint32_t m_height;
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uint32_t m_debug;
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uint32_t m_reset;
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};
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ENTRY_IMPLEMENT_MAIN(DebugDrawApp);
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@ -422,6 +422,7 @@ exampleProject("24-nbody")
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exampleProject("26-occlusion")
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exampleProject("27-terrain")
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exampleProject("28-wireframe")
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exampleProject("29-debugdraw")
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-- C99 source doesn't compile under WinRT settings
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if not premake.vstudio.iswinrt() then
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