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-rw-r--r--3rdparty/bgfx/examples/02-metaballs/metaballs.cpp477
1 files changed, 253 insertions, 224 deletions
diff --git a/3rdparty/bgfx/examples/02-metaballs/metaballs.cpp b/3rdparty/bgfx/examples/02-metaballs/metaballs.cpp
index 7578433b317..6593f3d33c1 100644
--- a/3rdparty/bgfx/examples/02-metaballs/metaballs.cpp
+++ b/3rdparty/bgfx/examples/02-metaballs/metaballs.cpp
@@ -4,7 +4,7 @@
*/
#include "common.h"
-#include <bgfx.h>
+#include <bgfx/bgfx.h>
// embedded shaders
#include "vs_metaballs.bin.h"
@@ -460,294 +460,323 @@ uint32_t triangulate(uint8_t* _result, uint32_t _stride, const float* __restrict
return num;
}
-int _main_(int /*_argc*/, char** /*_argv*/)
+#define DIMS 32
+
+class Metaballs : public entry::AppI
{
- uint32_t width = 1280;
- uint32_t height = 720;
- uint32_t debug = BGFX_DEBUG_TEXT;
- uint32_t reset = BGFX_RESET_VSYNC;
+ void init(int /*_argc*/, char** /*_argv*/) BX_OVERRIDE
+ {
+ m_width = 1280;
+ m_height = 720;
+ m_debug = BGFX_DEBUG_TEXT;
+ m_reset = BGFX_RESET_VSYNC;
- bgfx::init();
- bgfx::reset(width, height, reset);
+ bgfx::init();
+ bgfx::reset(m_width, m_height, m_reset);
- // Enable debug text.
- bgfx::setDebug(debug);
+ // Enable debug text.
+ bgfx::setDebug(m_debug);
- // Set view 0 clear state.
- bgfx::setViewClear(0
- , BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
- , 0x303030ff
- , 1.0f
- , 0
- );
+ // Set view 0 clear state.
+ bgfx::setViewClear(0
+ , BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
+ , 0x303030ff
+ , 1.0f
+ , 0
+ );
- // Create vertex stream declaration.
- PosNormalColorVertex::init();
+ // Create vertex stream declaration.
+ PosNormalColorVertex::init();
- const bgfx::Memory* vs_metaballs;
- const bgfx::Memory* fs_metaballs;
+ const bgfx::Memory* vs_metaballs;
+ const bgfx::Memory* fs_metaballs;
- switch (bgfx::getRendererType() )
- {
- case bgfx::RendererType::Direct3D9:
- vs_metaballs = bgfx::makeRef(vs_metaballs_dx9, sizeof(vs_metaballs_dx9) );
- fs_metaballs = bgfx::makeRef(fs_metaballs_dx9, sizeof(fs_metaballs_dx9) );
- break;
-
- case bgfx::RendererType::Direct3D11:
- case bgfx::RendererType::Direct3D12:
- vs_metaballs = bgfx::makeRef(vs_metaballs_dx11, sizeof(vs_metaballs_dx11) );
- fs_metaballs = bgfx::makeRef(fs_metaballs_dx11, sizeof(fs_metaballs_dx11) );
- break;
-
- default:
- vs_metaballs = bgfx::makeRef(vs_metaballs_glsl, sizeof(vs_metaballs_glsl) );
- fs_metaballs = bgfx::makeRef(fs_metaballs_glsl, sizeof(fs_metaballs_glsl) );
- break;
- }
+ switch (bgfx::getRendererType() )
+ {
+ case bgfx::RendererType::Direct3D9:
+ vs_metaballs = bgfx::makeRef(vs_metaballs_dx9, sizeof(vs_metaballs_dx9) );
+ fs_metaballs = bgfx::makeRef(fs_metaballs_dx9, sizeof(fs_metaballs_dx9) );
+ break;
+
+ case bgfx::RendererType::Direct3D11:
+ case bgfx::RendererType::Direct3D12:
+ vs_metaballs = bgfx::makeRef(vs_metaballs_dx11, sizeof(vs_metaballs_dx11) );
+ fs_metaballs = bgfx::makeRef(fs_metaballs_dx11, sizeof(fs_metaballs_dx11) );
+ break;
+
+ case bgfx::RendererType::Metal:
+ vs_metaballs = bgfx::makeRef(vs_metaballs_mtl, sizeof(vs_metaballs_mtl) );
+ fs_metaballs = bgfx::makeRef(fs_metaballs_mtl, sizeof(fs_metaballs_mtl) );
+ break;
+
+ default:
+ vs_metaballs = bgfx::makeRef(vs_metaballs_glsl, sizeof(vs_metaballs_glsl) );
+ fs_metaballs = bgfx::makeRef(fs_metaballs_glsl, sizeof(fs_metaballs_glsl) );
+ break;
+ }
- bgfx::ShaderHandle vsh = bgfx::createShader(vs_metaballs);
- bgfx::ShaderHandle fsh = bgfx::createShader(fs_metaballs);
+ bgfx::ShaderHandle vsh = bgfx::createShader(vs_metaballs);
+ bgfx::ShaderHandle fsh = bgfx::createShader(fs_metaballs);
- // Create program from shaders.
- bgfx::ProgramHandle program = bgfx::createProgram(vsh, fsh, true /* destroy shaders when program is destroyed */);
+ // Create program from shaders.
+ m_program = bgfx::createProgram(vsh, fsh, true /* destroy shaders when program is destroyed */);
-#define DIMS 32
+ m_grid = new Grid[DIMS*DIMS*DIMS];
+ m_timeOffset = bx::getHPCounter();
+ }
- Grid* grid = new Grid[DIMS*DIMS*DIMS];
- const uint32_t ypitch = DIMS;
- const uint32_t zpitch = DIMS*DIMS;
- const float invdim = 1.0f/float(DIMS-1);
+ int shutdown() BX_OVERRIDE
+ {
+ delete [] m_grid;
- int64_t timeOffset = bx::getHPCounter();
+ // Cleanup.
+ bgfx::destroyProgram(m_program);
- while (!entry::processEvents(width, height, debug, reset) )
- {
- // Set view 0 default viewport.
- bgfx::setViewRect(0, 0, 0, width, height);
-
- // This dummy draw call is here to make sure that view 0 is cleared
- // if no other draw calls are submitted to view 0.
- bgfx::submit(0);
-
- 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;
- float time = (float)( (now - timeOffset)/double(bx::getHPFrequency() ) );
-
- // Use debug font to print information about this example.
- bgfx::dbgTextClear();
- bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/02-metaball");
- bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Rendering with transient buffers and embedding shaders.");
-
- float at[3] = { 0.0f, 0.0f, 0.0f };
- float eye[3] = { 0.0f, 0.0f, -50.0f };
-
- // Set view and projection matrix for view 0.
- const bgfx::HMD* hmd = bgfx::getHMD();
- if (NULL != hmd)
- {
- float view[16];
- bx::mtxQuatTranslationHMD(view, hmd->eye[0].rotation, eye);
+ // Shutdown bgfx.
+ bgfx::shutdown();
- float proj[16];
- bx::mtxProj(proj, hmd->eye[0].fov, 0.1f, 100.0f);
+ return 0;
+ }
- bgfx::setViewTransform(0, view, proj);
+ bool update() BX_OVERRIDE
+ {
+ const uint32_t ypitch = DIMS;
+ const uint32_t zpitch = DIMS*DIMS;
+ const float invdim = 1.0f/float(DIMS-1);
- // Set view 0 default viewport.
- //
- // Use HMD's width/height since HMD's internal frame buffer size
- // might be much larger than window size.
- bgfx::setViewRect(0, 0, 0, hmd->width, hmd->height);
- }
- else
+ if (!entry::processEvents(m_width, m_height, m_debug, m_reset) )
{
- float view[16];
- bx::mtxLookAt(view, eye, at);
+ // Set view 0 default viewport.
+ bgfx::setViewRect(0, 0, 0, m_width, m_height);
+
+ // This dummy draw call is here to make sure that view 0 is cleared
+ // if no other draw calls are submitted to view 0.
+ bgfx::touch(0);
+
+ 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;
+ float time = (float)( (now - m_timeOffset)/double(bx::getHPFrequency() ) );
+
+ // Use debug font to print information about this example.
+ bgfx::dbgTextClear();
+ bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/02-metaball");
+ bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Rendering with transient buffers and embedding shaders.");
+
+ float at[3] = { 0.0f, 0.0f, 0.0f };
+ float eye[3] = { 0.0f, 0.0f, -50.0f };
+
+ // Set view and projection matrix for view 0.
+ const bgfx::HMD* hmd = bgfx::getHMD();
+ if (NULL != hmd && 0 != (hmd->flags & BGFX_HMD_RENDERING) )
+ {
+ float view[16];
+ bx::mtxQuatTranslationHMD(view, hmd->eye[0].rotation, eye);
- float proj[16];
- bx::mtxProj(proj, 60.0f, float(width)/float(height), 0.1f, 100.0f);
- bgfx::setViewTransform(0, view, proj);
+ float proj[16];
+ bx::mtxProj(proj, hmd->eye[0].fov, 0.1f, 100.0f);
- // Set view 0 default viewport.
- bgfx::setViewRect(0, 0, 0, width, height);
- }
+ bgfx::setViewTransform(0, view, proj);
- // Stats.
- uint32_t numVertices = 0;
- int64_t profUpdate = 0;
- int64_t profNormal = 0;
- int64_t profTriangulate = 0;
+ // Set view 0 default viewport.
+ //
+ // Use HMD's width/height since HMD's internal frame buffer size
+ // might be much larger than window size.
+ bgfx::setViewRect(0, 0, 0, hmd->width, hmd->height);
+ }
+ else
+ {
+ float view[16];
+ bx::mtxLookAt(view, eye, at);
- // Allocate 32K vertices in transient vertex buffer.
- uint32_t maxVertices = (32<<10);
- bgfx::TransientVertexBuffer tvb;
- bgfx::allocTransientVertexBuffer(&tvb, maxVertices, PosNormalColorVertex::ms_decl);
+ float proj[16];
+ bx::mtxProj(proj, 60.0f, float(m_width)/float(m_height), 0.1f, 100.0f);
+ bgfx::setViewTransform(0, view, proj);
- const uint32_t numSpheres = 16;
- float sphere[numSpheres][4];
- for (uint32_t ii = 0; ii < numSpheres; ++ii)
- {
- sphere[ii][0] = sinf(time*(ii*0.21f)+ii*0.37f) * (DIMS * 0.5f - 8.0f);
- sphere[ii][1] = sinf(time*(ii*0.37f)+ii*0.67f) * (DIMS * 0.5f - 8.0f);
- sphere[ii][2] = cosf(time*(ii*0.11f)+ii*0.13f) * (DIMS * 0.5f - 8.0f);
- sphere[ii][3] = 1.0f/(2.0f + (sinf(time*(ii*0.13f) )*0.5f+0.5f)*2.0f);
- }
+ // Set view 0 default viewport.
+ bgfx::setViewRect(0, 0, 0, m_width, m_height);
+ }
- profUpdate = bx::getHPCounter();
+ // Stats.
+ uint32_t numVertices = 0;
+ int64_t profUpdate = 0;
+ int64_t profNormal = 0;
+ int64_t profTriangulate = 0;
- for (uint32_t zz = 0; zz < DIMS; ++zz)
- {
- for (uint32_t yy = 0; yy < DIMS; ++yy)
+ // Allocate 32K vertices in transient vertex buffer.
+ uint32_t maxVertices = (32<<10);
+ bgfx::TransientVertexBuffer tvb;
+ bgfx::allocTransientVertexBuffer(&tvb, maxVertices, PosNormalColorVertex::ms_decl);
+
+ const uint32_t numSpheres = 16;
+ float sphere[numSpheres][4];
+ for (uint32_t ii = 0; ii < numSpheres; ++ii)
{
- uint32_t offset = (zz*DIMS+yy)*DIMS;
+ sphere[ii][0] = sinf(time*(ii*0.21f)+ii*0.37f) * (DIMS * 0.5f - 8.0f);
+ sphere[ii][1] = sinf(time*(ii*0.37f)+ii*0.67f) * (DIMS * 0.5f - 8.0f);
+ sphere[ii][2] = cosf(time*(ii*0.11f)+ii*0.13f) * (DIMS * 0.5f - 8.0f);
+ sphere[ii][3] = 1.0f/(2.0f + (sinf(time*(ii*0.13f) )*0.5f+0.5f)*2.0f);
+ }
+
+ profUpdate = bx::getHPCounter();
- for (uint32_t xx = 0; xx < DIMS; ++xx)
+ for (uint32_t zz = 0; zz < DIMS; ++zz)
+ {
+ for (uint32_t yy = 0; yy < DIMS; ++yy)
{
- uint32_t xoffset = offset + xx;
+ uint32_t offset = (zz*DIMS+yy)*DIMS;
- float dist = 0.0f;
- float prod = 1.0f;
- for (uint32_t ii = 0; ii < numSpheres; ++ii)
+ for (uint32_t xx = 0; xx < DIMS; ++xx)
{
- const float* pos = sphere[ii];
- float dx = pos[0] - (-DIMS*0.5f + float(xx) );
- float dy = pos[1] - (-DIMS*0.5f + float(yy) );
- float dz = pos[2] - (-DIMS*0.5f + float(zz) );
- float invr = pos[3];
- float dot = dx*dx + dy*dy + dz*dz;
- dot *= invr*invr;
-
- dist *= dot;
- dist += prod;
- prod *= dot;
+ uint32_t xoffset = offset + xx;
+
+ float dist = 0.0f;
+ float prod = 1.0f;
+ for (uint32_t ii = 0; ii < numSpheres; ++ii)
+ {
+ const float* pos = sphere[ii];
+ float dx = pos[0] - (-DIMS*0.5f + float(xx) );
+ float dy = pos[1] - (-DIMS*0.5f + float(yy) );
+ float dz = pos[2] - (-DIMS*0.5f + float(zz) );
+ float invr = pos[3];
+ float dot = dx*dx + dy*dy + dz*dz;
+ dot *= invr*invr;
+
+ dist *= dot;
+ dist += prod;
+ prod *= dot;
+ }
+
+ m_grid[xoffset].m_val = dist / prod - 1.0f;
}
-
- grid[xoffset].m_val = dist / prod - 1.0f;
}
}
- }
- profUpdate = bx::getHPCounter() - profUpdate;
+ profUpdate = bx::getHPCounter() - profUpdate;
- profNormal = bx::getHPCounter();
+ profNormal = bx::getHPCounter();
- for (uint32_t zz = 1; zz < DIMS-1; ++zz)
- {
- for (uint32_t yy = 1; yy < DIMS-1; ++yy)
+ for (uint32_t zz = 1; zz < DIMS-1; ++zz)
{
- uint32_t offset = (zz*DIMS+yy)*DIMS;
-
- for (uint32_t xx = 1; xx < DIMS-1; ++xx)
+ for (uint32_t yy = 1; yy < DIMS-1; ++yy)
{
- uint32_t xoffset = offset + xx;
+ uint32_t offset = (zz*DIMS+yy)*DIMS;
- float normal[3] =
+ for (uint32_t xx = 1; xx < DIMS-1; ++xx)
{
- grid[xoffset-1 ].m_val - grid[xoffset+1 ].m_val,
- grid[xoffset-ypitch].m_val - grid[xoffset+ypitch].m_val,
- grid[xoffset-zpitch].m_val - grid[xoffset+zpitch].m_val,
- };
+ uint32_t xoffset = offset + xx;
+
+ Grid* grid = m_grid;
+ float normal[3] =
+ {
+ grid[xoffset-1 ].m_val - grid[xoffset+1 ].m_val,
+ grid[xoffset-ypitch].m_val - grid[xoffset+ypitch].m_val,
+ grid[xoffset-zpitch].m_val - grid[xoffset+zpitch].m_val,
+ };
- bx::vec3Norm(grid[xoffset].m_normal, normal);
+ bx::vec3Norm(grid[xoffset].m_normal, normal);
+ }
}
}
- }
-
- profNormal = bx::getHPCounter() - profNormal;
- profTriangulate = bx::getHPCounter();
+ profNormal = bx::getHPCounter() - profNormal;
- PosNormalColorVertex* vertex = (PosNormalColorVertex*)tvb.data;
+ profTriangulate = bx::getHPCounter();
- for (uint32_t zz = 0; zz < DIMS-1 && numVertices+12 < maxVertices; ++zz)
- {
- float rgb[6];
- rgb[2] = zz*invdim;
- rgb[5] = (zz+1)*invdim;
+ PosNormalColorVertex* vertex = (PosNormalColorVertex*)tvb.data;
- for (uint32_t yy = 0; yy < DIMS-1 && numVertices+12 < maxVertices; ++yy)
+ for (uint32_t zz = 0; zz < DIMS-1 && numVertices+12 < maxVertices; ++zz)
{
- uint32_t offset = (zz*DIMS+yy)*DIMS;
-
- rgb[1] = yy*invdim;
- rgb[4] = (yy+1)*invdim;
+ float rgb[6];
+ rgb[2] = zz*invdim;
+ rgb[5] = (zz+1)*invdim;
- for (uint32_t xx = 0; xx < DIMS-1 && numVertices+12 < maxVertices; ++xx)
+ for (uint32_t yy = 0; yy < DIMS-1 && numVertices+12 < maxVertices; ++yy)
{
- uint32_t xoffset = offset + xx;
+ uint32_t offset = (zz*DIMS+yy)*DIMS;
- rgb[0] = xx*invdim;
- rgb[3] = (xx+1)*invdim;
+ rgb[1] = yy*invdim;
+ rgb[4] = (yy+1)*invdim;
- float pos[3] =
+ for (uint32_t xx = 0; xx < DIMS-1 && numVertices+12 < maxVertices; ++xx)
{
- -DIMS*0.5f + float(xx),
- -DIMS*0.5f + float(yy),
- -DIMS*0.5f + float(zz)
- };
-
- const Grid* val[8] = {
- &grid[xoffset+zpitch+ypitch ],
- &grid[xoffset+zpitch+ypitch+1],
- &grid[xoffset+ypitch+1 ],
- &grid[xoffset+ypitch ],
- &grid[xoffset+zpitch ],
- &grid[xoffset+zpitch+1 ],
- &grid[xoffset+1 ],
- &grid[xoffset ],
- };
-
- uint32_t num = triangulate( (uint8_t*)vertex, PosNormalColorVertex::ms_decl.getStride(), rgb, pos, val, 0.5f);
- vertex += num;
- numVertices += num;
+ uint32_t xoffset = offset + xx;
+
+ rgb[0] = xx*invdim;
+ rgb[3] = (xx+1)*invdim;
+
+ float pos[3] =
+ {
+ -DIMS*0.5f + float(xx),
+ -DIMS*0.5f + float(yy),
+ -DIMS*0.5f + float(zz)
+ };
+
+ const Grid* grid = m_grid;
+ const Grid* val[8] = {
+ &grid[xoffset+zpitch+ypitch ],
+ &grid[xoffset+zpitch+ypitch+1],
+ &grid[xoffset+ypitch+1 ],
+ &grid[xoffset+ypitch ],
+ &grid[xoffset+zpitch ],
+ &grid[xoffset+zpitch+1 ],
+ &grid[xoffset+1 ],
+ &grid[xoffset ],
+ };
+
+ uint32_t num = triangulate( (uint8_t*)vertex, PosNormalColorVertex::ms_decl.getStride(), rgb, pos, val, 0.5f);
+ vertex += num;
+ numVertices += num;
+ }
}
}
- }
- profTriangulate = bx::getHPCounter() - profTriangulate;
+ profTriangulate = bx::getHPCounter() - profTriangulate;
+
+ float mtx[16];
+ bx::mtxRotateXY(mtx, time*0.67f, time);
- float mtx[16];
- bx::mtxRotateXY(mtx, time*0.67f, time);
+ // Set model matrix for rendering.
+ bgfx::setTransform(mtx);
- // Set model matrix for rendering.
- bgfx::setTransform(mtx);
+ // Set vertex and index buffer.
+ bgfx::setVertexBuffer(&tvb, 0, numVertices);
- // Set vertex and fragment shaders.
- bgfx::setProgram(program);
+ // Set render states.
+ bgfx::setState(BGFX_STATE_DEFAULT);
- // Set vertex and index buffer.
- bgfx::setVertexBuffer(&tvb, 0, numVertices);
+ // Submit primitive for rendering to view 0.
+ bgfx::submit(0, m_program);
- // Set render states.
- bgfx::setState(BGFX_STATE_DEFAULT);
+ // Display stats.
+ bgfx::dbgTextPrintf(1, 4, 0x0f, "Num vertices: %5d (%6.4f%%)", numVertices, float(numVertices)/maxVertices * 100);
+ bgfx::dbgTextPrintf(1, 5, 0x0f, " Update: % 7.3f[ms]", double(profUpdate)*toMs);
+ bgfx::dbgTextPrintf(1, 6, 0x0f, "Calc normals: % 7.3f[ms]", double(profNormal)*toMs);
+ bgfx::dbgTextPrintf(1, 7, 0x0f, " Triangulate: % 7.3f[ms]", double(profTriangulate)*toMs);
+ bgfx::dbgTextPrintf(1, 8, 0x0f, " Frame: % 7.3f[ms]", double(frameTime)*toMs);
- // Submit primitive for rendering to view 0.
- bgfx::submit(0);
+ // Advance to next frame. Rendering thread will be kicked to
+ // process submitted rendering primitives.
+ bgfx::frame();
- // Display stats.
- bgfx::dbgTextPrintf(1, 4, 0x0f, "Num vertices: %5d (%6.4f%%)", numVertices, float(numVertices)/maxVertices * 100);
- bgfx::dbgTextPrintf(1, 5, 0x0f, " Update: % 7.3f[ms]", double(profUpdate)*toMs);
- bgfx::dbgTextPrintf(1, 6, 0x0f, "Calc normals: % 7.3f[ms]", double(profNormal)*toMs);
- bgfx::dbgTextPrintf(1, 7, 0x0f, " Triangulate: % 7.3f[ms]", double(profTriangulate)*toMs);
- bgfx::dbgTextPrintf(1, 8, 0x0f, " Frame: % 7.3f[ms]", double(frameTime)*toMs);
+ return true;
+ }
- // Advance to next frame. Rendering thread will be kicked to
- // process submitted rendering primitives.
- bgfx::frame();
+ return false;
}
- delete [] grid;
+ uint32_t m_width;
+ uint32_t m_height;
+ uint32_t m_debug;
+ uint32_t m_reset;
+ bgfx::ProgramHandle m_program;
- // Cleanup.
- bgfx::destroyProgram(program);
+ Grid* m_grid;
+ int64_t m_timeOffset;
- // Shutdown bgfx.
- bgfx::shutdown();
+};
- return 0;
-}
+ENTRY_IMPLEMENT_MAIN(Metaballs);