02-metaballs: Added settings.
This commit is contained in:
Бранимир Караџић
parent
006548e00f
commit
c08f2db901
@ -408,6 +408,7 @@ uint32_t triangulate(
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, const float* _xyz
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, const Grid* _val[8]
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, float _iso
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, float _scale
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)
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{
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uint8_t cubeindex = 0;
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@ -445,9 +446,9 @@ uint32_t triangulate(
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}
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}
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float dr = _rgb[3] - _rgb[0];
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float dg = _rgb[4] - _rgb[1];
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float db = _rgb[5] - _rgb[2];
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const float dr = _rgb[3] - _rgb[0];
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const float dg = _rgb[4] - _rgb[1];
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const float db = _rgb[5] - _rgb[2];
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uint32_t num = 0;
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const int8_t* indices = s_indices[cubeindex];
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@ -456,13 +457,13 @@ uint32_t triangulate(
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const float* vertex = verts[uint8_t(indices[ii])];
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float* xyz = (float*)_result;
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xyz[0] = _xyz[0] + vertex[0];
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xyz[1] = _xyz[1] + vertex[1];
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xyz[2] = _xyz[2] + vertex[2];
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xyz[0] = _xyz[0] + vertex[0]*_scale;
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xyz[1] = _xyz[1] + vertex[1]*_scale;
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xyz[2] = _xyz[2] + vertex[2]*_scale;
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xyz[3] = vertex[3];
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xyz[4] = vertex[4];
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xyz[5] = vertex[5];
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xyz[3] = vertex[3]*_scale;
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xyz[4] = vertex[4]*_scale;
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xyz[5] = vertex[5]*_scale;
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uint32_t rr = uint8_t( (_rgb[0] + vertex[0]*dr)*255.0f);
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uint32_t gg = uint8_t( (_rgb[1] + vertex[1]*dg)*255.0f);
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@ -482,7 +483,8 @@ uint32_t triangulate(
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return num;
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}
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#define DIMS 32
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constexpr uint32_t kMaxDims = 32;
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constexpr float kMaxDimsF = float(kMaxDims);
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class ExampleMetaballs : public entry::AppI
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{
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@ -531,7 +533,7 @@ public:
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// Create program from shaders.
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m_program = bgfx::createProgram(vsh, fsh, true /* destroy shaders when program is destroyed */);
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m_grid = new Grid[DIMS*DIMS*DIMS];
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m_grid = new Grid[kMaxDims*kMaxDims*kMaxDims];
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m_timeOffset = bx::getHPCounter();
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imguiCreate();
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@ -554,9 +556,8 @@ public:
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bool update() override
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{
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const uint32_t ypitch = DIMS;
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const uint32_t zpitch = DIMS*DIMS;
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const float invdim = 1.0f/float(DIMS-1);
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const uint32_t ypitch = kMaxDims;
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const uint32_t zpitch = kMaxDims*kMaxDims;
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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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@ -572,6 +573,29 @@ public:
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showExampleDialog(this);
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ImGui::SetNextWindowPos(
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ImVec2(m_width - m_width / 5.0f - 10.0f, 10.0f)
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, ImGuiCond_FirstUseEver
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);
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ImGui::SetNextWindowSize(
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ImVec2(m_width / 5.0f, m_height / 7.0f)
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, ImGuiCond_FirstUseEver
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);
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ImGui::Begin("Settings"
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, NULL
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, 0
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);
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static float iso = 0.75f;
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ImGui::SliderFloat("ISO", &iso, 0.1f, 4.0f);
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static uint32_t numDims = kMaxDims;
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ImGui::SliderInt("Size", (int*)&numDims, 8, kMaxDims);
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ImGui::End();
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const float numDimsF = float(numDims);
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const float scale = kMaxDimsF/numDimsF;
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const float invDim = 1.0f/(numDimsF-1.0f);
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// Set view 0 default viewport.
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bgfx::setViewRect(0, 0, 0, uint16_t(m_width), uint16_t(m_height) );
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@ -618,21 +642,21 @@ public:
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float sphere[numSpheres][4];
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for (uint32_t ii = 0; ii < numSpheres; ++ii)
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{
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sphere[ii][0] = bx::sin(time*(ii*0.21f)+ii*0.37f) * (DIMS * 0.5f - 8.0f);
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sphere[ii][1] = bx::sin(time*(ii*0.37f)+ii*0.67f) * (DIMS * 0.5f - 8.0f);
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sphere[ii][2] = bx::cos(time*(ii*0.11f)+ii*0.13f) * (DIMS * 0.5f - 8.0f);
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sphere[ii][3] = 1.0f/(2.0f + (bx::sin(time*(ii*0.13f) )*0.5f+0.5f)*2.0f);
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sphere[ii][0] = bx::sin(time*(ii*0.21f)+ii*0.37f) * (kMaxDimsF * 0.5f - 8.0f);
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sphere[ii][1] = bx::sin(time*(ii*0.37f)+ii*0.67f) * (kMaxDimsF * 0.5f - 8.0f);
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sphere[ii][2] = bx::cos(time*(ii*0.11f)+ii*0.13f) * (kMaxDimsF * 0.5f - 8.0f);
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sphere[ii][3] = 1.0f/(3.0f + (bx::sin(time*(ii*0.13f) )*0.5f+0.5f)*0.9f );
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}
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profUpdate = bx::getHPCounter();
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for (uint32_t zz = 0; zz < DIMS; ++zz)
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for (uint32_t zz = 0; zz < numDims; ++zz)
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{
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for (uint32_t yy = 0; yy < DIMS; ++yy)
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for (uint32_t yy = 0; yy < numDims; ++yy)
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{
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uint32_t offset = (zz*DIMS+yy)*DIMS;
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uint32_t offset = (zz*kMaxDims+yy)*kMaxDims;
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for (uint32_t xx = 0; xx < DIMS; ++xx)
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for (uint32_t xx = 0; xx < numDims; ++xx)
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{
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uint32_t xoffset = offset + xx;
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@ -641,12 +665,12 @@ public:
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for (uint32_t ii = 0; ii < numSpheres; ++ii)
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{
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const float* pos = sphere[ii];
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float dx = pos[0] - (-DIMS*0.5f + float(xx) );
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float dy = pos[1] - (-DIMS*0.5f + float(yy) );
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float dz = pos[2] - (-DIMS*0.5f + float(zz) );
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float invr = pos[3];
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float dot = dx*dx + dy*dy + dz*dz;
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dot *= invr*invr;
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float dx = pos[0] - (-kMaxDimsF*0.5f + float(xx)*scale);
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float dy = pos[1] - (-kMaxDimsF*0.5f + float(yy)*scale);
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float dz = pos[2] - (-kMaxDimsF*0.5f + float(zz)*scale);
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float invR = pos[3];
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float dot = dx*dx + dy*dy + dz*dz;
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dot *= bx::square(invR);
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dist *= dot;
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dist += prod;
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@ -662,13 +686,13 @@ public:
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profNormal = bx::getHPCounter();
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for (uint32_t zz = 1; zz < DIMS-1; ++zz)
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for (uint32_t zz = 1; zz < numDims-1; ++zz)
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{
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for (uint32_t yy = 1; yy < DIMS-1; ++yy)
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for (uint32_t yy = 1; yy < numDims-1; ++yy)
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{
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uint32_t offset = (zz*DIMS+yy)*DIMS;
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uint32_t offset = (zz*kMaxDims+yy)*kMaxDims;
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for (uint32_t xx = 1; xx < DIMS-1; ++xx)
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for (uint32_t xx = 1; xx < numDims-1; ++xx)
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{
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uint32_t xoffset = offset + xx;
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@ -691,31 +715,31 @@ public:
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PosNormalColorVertex* vertex = (PosNormalColorVertex*)tvb.data;
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for (uint32_t zz = 0; zz < DIMS-1 && numVertices+12 < maxVertices; ++zz)
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for (uint32_t zz = 0; zz < numDims-1 && numVertices+12 < maxVertices; ++zz)
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{
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float rgb[6];
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rgb[2] = zz*invdim;
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rgb[5] = (zz+1)*invdim;
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rgb[2] = zz*invDim;
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rgb[5] = (zz+1)*invDim;
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for (uint32_t yy = 0; yy < DIMS-1 && numVertices+12 < maxVertices; ++yy)
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for (uint32_t yy = 0; yy < numDims-1 && numVertices+12 < maxVertices; ++yy)
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{
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uint32_t offset = (zz*DIMS+yy)*DIMS;
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uint32_t offset = (zz*kMaxDims+yy)*kMaxDims;
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rgb[1] = yy*invdim;
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rgb[4] = (yy+1)*invdim;
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rgb[1] = yy*invDim;
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rgb[4] = (yy+1)*invDim;
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for (uint32_t xx = 0; xx < DIMS-1 && numVertices+12 < maxVertices; ++xx)
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for (uint32_t xx = 0; xx < numDims-1 && numVertices+12 < maxVertices; ++xx)
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{
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uint32_t xoffset = offset + xx;
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rgb[0] = xx*invdim;
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rgb[3] = (xx+1)*invdim;
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rgb[0] = xx*invDim;
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rgb[3] = (xx+1)*invDim;
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float pos[3] =
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{
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-DIMS*0.5f + float(xx),
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-DIMS*0.5f + float(yy),
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-DIMS*0.5f + float(zz)
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-kMaxDimsF*0.5f + float(xx)*scale,
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-kMaxDimsF*0.5f + float(yy)*scale,
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-kMaxDimsF*0.5f + float(zz)*scale,
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};
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const Grid* grid = m_grid;
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@ -730,7 +754,15 @@ public:
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&grid[xoffset ],
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};
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uint32_t num = triangulate( (uint8_t*)vertex, PosNormalColorVertex::ms_layout.getStride(), rgb, pos, val, 0.5f);
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uint32_t num = triangulate(
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(uint8_t*)vertex
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, PosNormalColorVertex::ms_layout.getStride()
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, rgb
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, pos
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, val
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, iso
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, scale
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);
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vertex += num;
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numVertices += num;
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}
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@ -756,7 +788,7 @@ public:
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// Display stats.
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ImGui::SetNextWindowPos(
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ImVec2(m_width - m_width / 5.0f - 10.0f, 10.0f)
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ImVec2(m_width - m_width / 5.0f - 10.0f, m_height / 7.0f + 30.0f)
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, ImGuiCond_FirstUseEver
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);
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ImGui::SetNextWindowSize(
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