mirror of https://github.com/bkaradzic/bgfx
637 lines
18 KiB
C++
637 lines
18 KiB
C++
/*
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* Copyright 2011-2024 Branimir Karadzic. All rights reserved.
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* License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE
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*/
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#include "common.h"
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#include "bgfx_utils.h"
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#include "imgui/imgui.h"
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#include <bx/rng.h>
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namespace
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{
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struct PosColorTexCoord0Vertex
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{
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float m_x;
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float m_y;
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float m_z;
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uint32_t m_rgba;
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float m_u;
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float m_v;
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static void init()
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{
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ms_layout
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.begin()
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.add(bgfx::Attrib::Position, 3, bgfx::AttribType::Float)
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.add(bgfx::Attrib::Color0, 4, bgfx::AttribType::Uint8, true)
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.add(bgfx::Attrib::TexCoord0, 2, bgfx::AttribType::Float)
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.end();
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}
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static bgfx::VertexLayout ms_layout;
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};
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bgfx::VertexLayout PosColorTexCoord0Vertex::ms_layout;
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void screenSpaceQuad(bool _originBottomLeft = false, float _width = 1.0f, float _height = 1.0f)
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{
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if (3 == bgfx::getAvailTransientVertexBuffer(3, PosColorTexCoord0Vertex::ms_layout) )
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{
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bgfx::TransientVertexBuffer vb;
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bgfx::allocTransientVertexBuffer(&vb, 3, PosColorTexCoord0Vertex::ms_layout);
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PosColorTexCoord0Vertex* vertex = (PosColorTexCoord0Vertex*)vb.data;
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const float zz = 0.0f;
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const float minx = -_width;
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const float maxx = _width;
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const float miny = 0.0f;
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const float maxy = _height*2.0f;
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const float minu = -1.0f;
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const float maxu = 1.0f;
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float minv = 0.0f;
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float maxv = 2.0f;
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if (_originBottomLeft)
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{
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float temp = minv;
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minv = maxv;
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maxv = temp;
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minv -= 1.0f;
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maxv -= 1.0f;
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}
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vertex[0].m_x = minx;
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vertex[0].m_y = miny;
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vertex[0].m_z = zz;
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vertex[0].m_rgba = 0xffffffff;
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vertex[0].m_u = minu;
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vertex[0].m_v = minv;
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vertex[1].m_x = maxx;
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vertex[1].m_y = miny;
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vertex[1].m_z = zz;
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vertex[1].m_rgba = 0xffffffff;
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vertex[1].m_u = maxu;
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vertex[1].m_v = minv;
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vertex[2].m_x = maxx;
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vertex[2].m_y = maxy;
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vertex[2].m_z = zz;
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vertex[2].m_rgba = 0xffffffff;
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vertex[2].m_u = maxu;
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vertex[2].m_v = maxv;
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bgfx::setVertexBuffer(0, &vb);
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}
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}
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void setOffsets2x2Lum(bgfx::UniformHandle _handle, uint32_t _width, uint32_t _height)
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{
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float offsets[16][4];
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float du = 1.0f/_width;
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float dv = 1.0f/_height;
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uint16_t num = 0;
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for (uint32_t yy = 0; yy < 3; ++yy)
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{
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for (uint32_t xx = 0; xx < 3; ++xx)
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{
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offsets[num][0] = xx * du;
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offsets[num][1] = yy * dv;
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++num;
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}
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}
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bgfx::setUniform(_handle, offsets, num);
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}
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void setOffsets4x4Lum(bgfx::UniformHandle _handle, uint32_t _width, uint32_t _height)
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{
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float offsets[16][4];
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float du = 1.0f/_width;
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float dv = 1.0f/_height;
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uint16_t num = 0;
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for (uint32_t yy = 0; yy < 4; ++yy)
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{
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for (uint32_t xx = 0; xx < 4; ++xx)
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{
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offsets[num][0] = (xx - 1.0f) * du;
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offsets[num][1] = (yy - 1.0f) * dv;
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++num;
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}
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}
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bgfx::setUniform(_handle, offsets, num);
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}
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class ExampleHDR : public entry::AppI
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{
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public:
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ExampleHDR(const char* _name, const char* _description, const char* _url)
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: entry::AppI(_name, _description, _url)
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{
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}
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void init(int32_t _argc, const char* const* _argv, uint32_t _width, uint32_t _height) override
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{
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Args args(_argc, _argv);
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m_width = _width;
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m_height = _height;
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m_debug = BGFX_DEBUG_NONE;
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m_reset = BGFX_RESET_VSYNC;
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bgfx::Init init;
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init.type = args.m_type;
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init.vendorId = args.m_pciId;
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init.platformData.nwh = entry::getNativeWindowHandle(entry::kDefaultWindowHandle);
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init.platformData.ndt = entry::getNativeDisplayHandle();
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init.platformData.type = entry::getNativeWindowHandleType();
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init.resolution.width = m_width;
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init.resolution.height = m_height;
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init.resolution.reset = m_reset;
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bgfx::init(init);
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// Enable m_debug text.
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bgfx::setDebug(m_debug);
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// Create vertex stream declaration.
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PosColorTexCoord0Vertex::init();
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m_uffizi = loadTexture("textures/uffizi.ktx"
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, 0
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| BGFX_SAMPLER_U_CLAMP
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| BGFX_SAMPLER_V_CLAMP
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| BGFX_SAMPLER_W_CLAMP
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);
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m_skyProgram = loadProgram("vs_hdr_skybox", "fs_hdr_skybox");
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m_lumProgram = loadProgram("vs_hdr_lum", "fs_hdr_lum");
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m_lumAvgProgram = loadProgram("vs_hdr_lumavg", "fs_hdr_lumavg");
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m_blurProgram = loadProgram("vs_hdr_blur", "fs_hdr_blur");
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m_brightProgram = loadProgram("vs_hdr_bright", "fs_hdr_bright");
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m_meshProgram = loadProgram("vs_hdr_mesh", "fs_hdr_mesh");
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m_tonemapProgram = loadProgram("vs_hdr_tonemap", "fs_hdr_tonemap");
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s_texCube = bgfx::createUniform("s_texCube", bgfx::UniformType::Sampler);
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s_texColor = bgfx::createUniform("s_texColor", bgfx::UniformType::Sampler);
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s_texLum = bgfx::createUniform("s_texLum", bgfx::UniformType::Sampler);
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s_texBlur = bgfx::createUniform("s_texBlur", bgfx::UniformType::Sampler);
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u_mtx = bgfx::createUniform("u_mtx", bgfx::UniformType::Mat4);
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u_tonemap = bgfx::createUniform("u_tonemap", bgfx::UniformType::Vec4);
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u_offset = bgfx::createUniform("u_offset", bgfx::UniformType::Vec4, 16);
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m_mesh = meshLoad("meshes/bunny.bin");
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m_fbh.idx = bgfx::kInvalidHandle;
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m_lum[0] = bgfx::createFrameBuffer(128, 128, bgfx::TextureFormat::BGRA8);
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m_lum[1] = bgfx::createFrameBuffer( 64, 64, bgfx::TextureFormat::BGRA8);
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m_lum[2] = bgfx::createFrameBuffer( 16, 16, bgfx::TextureFormat::BGRA8);
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m_lum[3] = bgfx::createFrameBuffer( 4, 4, bgfx::TextureFormat::BGRA8);
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m_lum[4] = bgfx::createFrameBuffer( 1, 1, bgfx::TextureFormat::BGRA8);
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m_bright = bgfx::createFrameBuffer(bgfx::BackbufferRatio::Half, bgfx::TextureFormat::BGRA8);
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m_blur = bgfx::createFrameBuffer(bgfx::BackbufferRatio::Eighth, bgfx::TextureFormat::BGRA8);
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m_lumBgra8 = 0;
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if ( (BGFX_CAPS_TEXTURE_BLIT|BGFX_CAPS_TEXTURE_READ_BACK) == (bgfx::getCaps()->supported & (BGFX_CAPS_TEXTURE_BLIT|BGFX_CAPS_TEXTURE_READ_BACK) ) )
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{
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m_rb = bgfx::createTexture2D(1, 1, false, 1, bgfx::TextureFormat::BGRA8, BGFX_TEXTURE_BLIT_DST|BGFX_TEXTURE_READ_BACK);
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}
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else
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{
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m_rb.idx = bgfx::kInvalidHandle;
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}
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// Imgui.
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imguiCreate();
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m_caps = bgfx::getCaps();
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m_oldWidth = 0;
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m_oldHeight = 0;
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m_oldReset = m_reset;
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m_speed = 0.37f;
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m_middleGray = 0.18f;
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m_white = 1.1f;
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m_threshold = 1.5f;
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m_scrollArea = 0;
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m_time = 0.0f;
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}
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virtual int shutdown() override
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{
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// Cleanup.
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imguiDestroy();
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meshUnload(m_mesh);
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for (uint32_t ii = 0; ii < BX_COUNTOF(m_lum); ++ii)
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{
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bgfx::destroy(m_lum[ii]);
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}
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bgfx::destroy(m_bright);
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bgfx::destroy(m_blur);
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if (bgfx::isValid(m_fbh) )
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{
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bgfx::destroy(m_fbh);
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}
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bgfx::destroy(m_meshProgram);
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bgfx::destroy(m_skyProgram);
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bgfx::destroy(m_tonemapProgram);
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bgfx::destroy(m_lumProgram);
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bgfx::destroy(m_lumAvgProgram);
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bgfx::destroy(m_blurProgram);
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bgfx::destroy(m_brightProgram);
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bgfx::destroy(m_uffizi);
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if (bgfx::isValid(m_rb) )
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{
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bgfx::destroy(m_rb);
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}
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bgfx::destroy(s_texCube);
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bgfx::destroy(s_texColor);
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bgfx::destroy(s_texLum);
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bgfx::destroy(s_texBlur);
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bgfx::destroy(u_mtx);
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bgfx::destroy(u_tonemap);
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bgfx::destroy(u_offset);
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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() 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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if (!bgfx::isValid(m_fbh)
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|| m_oldWidth != m_width
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|| m_oldHeight != m_height
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|| m_oldReset != m_reset)
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{
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// Recreate variable size render targets when resolution changes.
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m_oldWidth = m_width;
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m_oldHeight = m_height;
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m_oldReset = m_reset;
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uint32_t msaa = (m_reset&BGFX_RESET_MSAA_MASK)>>BGFX_RESET_MSAA_SHIFT;
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if (bgfx::isValid(m_fbh) )
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{
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bgfx::destroy(m_fbh);
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}
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m_fbtextures[0] = bgfx::createTexture2D(
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uint16_t(m_width)
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, uint16_t(m_height)
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, false
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, 1
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, bgfx::TextureFormat::BGRA8
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, (uint64_t(msaa + 1) << BGFX_TEXTURE_RT_MSAA_SHIFT) | BGFX_SAMPLER_U_CLAMP | BGFX_SAMPLER_V_CLAMP
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);
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const uint64_t textureFlags = BGFX_TEXTURE_RT_WRITE_ONLY|(uint64_t(msaa+1)<<BGFX_TEXTURE_RT_MSAA_SHIFT);
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bgfx::TextureFormat::Enum depthFormat =
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bgfx::isTextureValid(0, false, 1, bgfx::TextureFormat::D16, textureFlags) ? bgfx::TextureFormat::D16
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: bgfx::isTextureValid(0, false, 1, bgfx::TextureFormat::D24S8, textureFlags) ? bgfx::TextureFormat::D24S8
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: bgfx::TextureFormat::D32
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;
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m_fbtextures[1] = bgfx::createTexture2D(
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uint16_t(m_width)
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, uint16_t(m_height)
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, false
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, 1
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, depthFormat
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, textureFlags
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);
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m_fbh = bgfx::createFrameBuffer(BX_COUNTOF(m_fbtextures), m_fbtextures, true);
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}
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imguiBeginFrame(m_mouseState.m_mx
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, m_mouseState.m_my
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, (m_mouseState.m_buttons[entry::MouseButton::Left ] ? IMGUI_MBUT_LEFT : 0)
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| (m_mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
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| (m_mouseState.m_buttons[entry::MouseButton::Middle] ? IMGUI_MBUT_MIDDLE : 0)
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, m_mouseState.m_mz
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, uint16_t(m_width)
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, uint16_t(m_height)
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);
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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 / 2.0f)
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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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ImGui::SliderFloat("Speed", &m_speed, 0.0f, 1.0f);
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ImGui::Separator();
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ImGui::SliderFloat("Middle gray", &m_middleGray, 0.1f, 1.0f);
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ImGui::SliderFloat("White point", &m_white, 0.1f, 2.0f);
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ImGui::SliderFloat("Threshold", &m_threshold, 0.1f, 2.0f);
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if (bgfx::isValid(m_rb) )
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{
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struct Packed { uint8_t bgra[4]; } arr = bx::bitCast<Packed>(m_lumBgra8);
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float exponent = arr.bgra[3] / 255.0f * 255.0f - 128.0f;
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float lumAvg = arr.bgra[2] / 255.0f * bx::exp2(exponent);
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ImGui::SliderFloat("Lum Avg", &lumAvg, 0.0f, 1.0f);
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}
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ImGui::End();
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imguiEndFrame();
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// This dummy draw call is here to make sure that view 0 is cleared
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// if no other draw calls are submitted to view 0.
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bgfx::touch(0);
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int64_t now = bx::getHPCounter();
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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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m_time += (float)(frameTime*m_speed/freq);
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bgfx::ViewId shuffle[10] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
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bx::shuffle(&m_rng, shuffle, BX_COUNTOF(shuffle) );
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bgfx::ViewId hdrSkybox = shuffle[0];
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bgfx::ViewId hdrMesh = shuffle[1];
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bgfx::ViewId hdrLuminance = shuffle[2];
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bgfx::ViewId hdrLumScale0 = shuffle[3];
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bgfx::ViewId hdrLumScale1 = shuffle[4];
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bgfx::ViewId hdrLumScale2 = shuffle[5];
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bgfx::ViewId hdrLumScale3 = shuffle[6];
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bgfx::ViewId hdrBrightness = shuffle[7];
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bgfx::ViewId hdrVBlur = shuffle[8];
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bgfx::ViewId hdrHBlurTonemap = shuffle[9];
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// Set views.
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bgfx::setViewName(hdrSkybox, "Skybox");
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bgfx::setViewClear(hdrSkybox, BGFX_CLEAR_COLOR | BGFX_CLEAR_DEPTH, 0x303030ff, 1.0f, 0);
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bgfx::setViewRect(hdrSkybox, 0, 0, bgfx::BackbufferRatio::Equal);
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bgfx::setViewFrameBuffer(hdrSkybox, m_fbh);
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bgfx::setViewName(hdrMesh, "Mesh");
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bgfx::setViewClear(hdrMesh, BGFX_CLEAR_DISCARD_DEPTH | BGFX_CLEAR_DISCARD_STENCIL);
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bgfx::setViewRect(hdrMesh, 0, 0, bgfx::BackbufferRatio::Equal);
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bgfx::setViewFrameBuffer(hdrMesh, m_fbh);
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bgfx::setViewName(hdrLuminance, "Luminance");
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bgfx::setViewRect(hdrLuminance, 0, 0, 128, 128);
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bgfx::setViewFrameBuffer(hdrLuminance, m_lum[0]);
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bgfx::setViewName(hdrLumScale0, "Downscale luminance 0");
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bgfx::setViewRect(hdrLumScale0, 0, 0, 64, 64);
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bgfx::setViewFrameBuffer(hdrLumScale0, m_lum[1]);
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bgfx::setViewName(hdrLumScale1, "Downscale luminance 1");
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bgfx::setViewRect(hdrLumScale1, 0, 0, 16, 16);
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bgfx::setViewFrameBuffer(hdrLumScale1, m_lum[2]);
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bgfx::setViewName(hdrLumScale2, "Downscale luminance 2");
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bgfx::setViewRect(hdrLumScale2, 0, 0, 4, 4);
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bgfx::setViewFrameBuffer(hdrLumScale2, m_lum[3]);
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bgfx::setViewName(hdrLumScale3, "Downscale luminance 3");
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bgfx::setViewRect(hdrLumScale3, 0, 0, 1, 1);
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bgfx::setViewFrameBuffer(hdrLumScale3, m_lum[4]);
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bgfx::setViewName(hdrBrightness, "Brightness");
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bgfx::setViewRect(hdrBrightness, 0, 0, bgfx::BackbufferRatio::Half);
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bgfx::setViewFrameBuffer(hdrBrightness, m_bright);
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bgfx::setViewName(hdrVBlur, "Blur vertical");
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bgfx::setViewRect(hdrVBlur, 0, 0, bgfx::BackbufferRatio::Eighth);
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bgfx::setViewFrameBuffer(hdrVBlur, m_blur);
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bgfx::setViewName(hdrHBlurTonemap, "Blur horizontal + tonemap");
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bgfx::setViewRect(hdrHBlurTonemap, 0, 0, bgfx::BackbufferRatio::Equal);
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bgfx::FrameBufferHandle invalid = BGFX_INVALID_HANDLE;
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bgfx::setViewFrameBuffer(hdrHBlurTonemap, invalid);
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const bgfx::Caps* caps = bgfx::getCaps();
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float proj[16];
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bx::mtxOrtho(proj, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 100.0f, 0.0f, caps->homogeneousDepth);
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bgfx::ViewId order[] =
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{
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hdrSkybox,
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hdrMesh,
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hdrLuminance,
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hdrLumScale0,
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hdrLumScale1,
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hdrLumScale2,
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hdrLumScale3,
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hdrBrightness,
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hdrVBlur,
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hdrHBlurTonemap
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};
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bgfx::setViewOrder(0, BX_COUNTOF(order), order);
|
|
|
|
// Set view and projection matrix for view 0.
|
|
for (uint8_t ii = 0; ii < BX_COUNTOF(order); ++ii)
|
|
{
|
|
bgfx::setViewTransform(ii, NULL, proj);
|
|
}
|
|
|
|
const bx::Vec3 at = { 0.0f, 1.0f, 0.0f };
|
|
const bx::Vec3 eye = { 0.0f, 1.0f, -2.5f };
|
|
|
|
float mtx[16];
|
|
bx::mtxRotateXY(mtx
|
|
, 0.0f
|
|
, m_time
|
|
);
|
|
|
|
const bx::Vec3 tmp = bx::mul(eye, mtx);
|
|
|
|
float view[16];
|
|
bx::mtxLookAt(view, tmp, at);
|
|
bx::mtxProj(proj, 60.0f, float(m_width)/float(m_height), 0.1f, 100.0f, caps->homogeneousDepth);
|
|
|
|
// Set view and projection matrix for view hdrMesh.
|
|
bgfx::setViewTransform(hdrMesh, view, proj);
|
|
|
|
float tonemap[4] = { m_middleGray, bx::square(m_white), m_threshold, m_time };
|
|
|
|
// Render skybox into view hdrSkybox.
|
|
bgfx::setTexture(0, s_texCube, m_uffizi);
|
|
bgfx::setState(BGFX_STATE_WRITE_RGB|BGFX_STATE_WRITE_A);
|
|
bgfx::setUniform(u_mtx, mtx);
|
|
screenSpaceQuad(true);
|
|
bgfx::submit(hdrSkybox, m_skyProgram);
|
|
|
|
// Render m_mesh into view hdrMesh.
|
|
bgfx::setTexture(0, s_texCube, m_uffizi);
|
|
bgfx::setUniform(u_tonemap, tonemap);
|
|
meshSubmit(m_mesh, hdrMesh, m_meshProgram, NULL);
|
|
|
|
// Calculate luminance.
|
|
setOffsets2x2Lum(u_offset, 128, 128);
|
|
bgfx::setTexture(0, s_texColor, m_fbtextures[0]);
|
|
bgfx::setState(BGFX_STATE_WRITE_RGB|BGFX_STATE_WRITE_A);
|
|
screenSpaceQuad(m_caps->originBottomLeft);
|
|
bgfx::submit(hdrLuminance, m_lumProgram);
|
|
|
|
// Downscale luminance 0.
|
|
setOffsets4x4Lum(u_offset, 128, 128);
|
|
bgfx::setTexture(0, s_texColor, bgfx::getTexture(m_lum[0]) );
|
|
bgfx::setState(BGFX_STATE_WRITE_RGB|BGFX_STATE_WRITE_A);
|
|
screenSpaceQuad(m_caps->originBottomLeft);
|
|
bgfx::submit(hdrLumScale0, m_lumAvgProgram);
|
|
|
|
// Downscale luminance 1.
|
|
setOffsets4x4Lum(u_offset, 64, 64);
|
|
bgfx::setTexture(0, s_texColor, bgfx::getTexture(m_lum[1]) );
|
|
bgfx::setState(BGFX_STATE_WRITE_RGB|BGFX_STATE_WRITE_A);
|
|
screenSpaceQuad(m_caps->originBottomLeft);
|
|
bgfx::submit(hdrLumScale1, m_lumAvgProgram);
|
|
|
|
// Downscale luminance 2.
|
|
setOffsets4x4Lum(u_offset, 16, 16);
|
|
bgfx::setTexture(0, s_texColor, bgfx::getTexture(m_lum[2]) );
|
|
bgfx::setState(BGFX_STATE_WRITE_RGB|BGFX_STATE_WRITE_A);
|
|
screenSpaceQuad(m_caps->originBottomLeft);
|
|
bgfx::submit(hdrLumScale2, m_lumAvgProgram);
|
|
|
|
// Downscale luminance 3.
|
|
setOffsets4x4Lum(u_offset, 4, 4);
|
|
bgfx::setTexture(0, s_texColor, bgfx::getTexture(m_lum[3]) );
|
|
bgfx::setState(BGFX_STATE_WRITE_RGB|BGFX_STATE_WRITE_A);
|
|
screenSpaceQuad(m_caps->originBottomLeft);
|
|
bgfx::submit(hdrLumScale3, m_lumAvgProgram);
|
|
|
|
// m_bright pass m_threshold is tonemap[3].
|
|
setOffsets4x4Lum(u_offset, m_width/2, m_height/2);
|
|
bgfx::setTexture(0, s_texColor, m_fbtextures[0]);
|
|
bgfx::setTexture(1, s_texLum, bgfx::getTexture(m_lum[4]) );
|
|
bgfx::setState(BGFX_STATE_WRITE_RGB|BGFX_STATE_WRITE_A);
|
|
bgfx::setUniform(u_tonemap, tonemap);
|
|
screenSpaceQuad(m_caps->originBottomLeft);
|
|
bgfx::submit(hdrBrightness, m_brightProgram);
|
|
|
|
// m_blur m_bright pass vertically.
|
|
bgfx::setTexture(0, s_texColor, bgfx::getTexture(m_bright) );
|
|
bgfx::setState(BGFX_STATE_WRITE_RGB|BGFX_STATE_WRITE_A);
|
|
bgfx::setUniform(u_tonemap, tonemap);
|
|
screenSpaceQuad(m_caps->originBottomLeft);
|
|
bgfx::submit(hdrVBlur, m_blurProgram);
|
|
|
|
// m_blur m_bright pass horizontally, do tonemaping and combine.
|
|
bgfx::setTexture(0, s_texColor, m_fbtextures[0]);
|
|
bgfx::setTexture(1, s_texLum, bgfx::getTexture(m_lum[4]) );
|
|
bgfx::setTexture(2, s_texBlur, bgfx::getTexture(m_blur) );
|
|
bgfx::setState(BGFX_STATE_WRITE_RGB|BGFX_STATE_WRITE_A);
|
|
screenSpaceQuad(m_caps->originBottomLeft);
|
|
bgfx::submit(hdrHBlurTonemap, m_tonemapProgram);
|
|
|
|
if (bgfx::isValid(m_rb) )
|
|
{
|
|
bgfx::blit(hdrHBlurTonemap, m_rb, 0, 0, bgfx::getTexture(m_lum[4]) );
|
|
bgfx::readTexture(m_rb, &m_lumBgra8);
|
|
}
|
|
|
|
// Advance to next frame. Rendering thread will be kicked to
|
|
// process submitted rendering primitives.
|
|
bgfx::frame();
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
entry::MouseState m_mouseState;
|
|
|
|
bgfx::ProgramHandle m_skyProgram;
|
|
bgfx::ProgramHandle m_lumProgram;
|
|
bgfx::ProgramHandle m_lumAvgProgram;
|
|
bgfx::ProgramHandle m_blurProgram;
|
|
bgfx::ProgramHandle m_brightProgram;
|
|
bgfx::ProgramHandle m_meshProgram;
|
|
bgfx::ProgramHandle m_tonemapProgram;
|
|
|
|
bgfx::TextureHandle m_uffizi;
|
|
bgfx::UniformHandle s_texCube;
|
|
bgfx::UniformHandle s_texColor;
|
|
bgfx::UniformHandle s_texLum;
|
|
bgfx::UniformHandle s_texBlur;
|
|
bgfx::UniformHandle u_mtx;
|
|
bgfx::UniformHandle u_tonemap;
|
|
bgfx::UniformHandle u_offset;
|
|
|
|
Mesh* m_mesh;
|
|
|
|
bgfx::TextureHandle m_fbtextures[2];
|
|
bgfx::TextureHandle m_rb;
|
|
bgfx::FrameBufferHandle m_fbh;
|
|
bgfx::FrameBufferHandle m_lum[5];
|
|
bgfx::FrameBufferHandle m_bright;
|
|
bgfx::FrameBufferHandle m_blur;
|
|
|
|
bx::RngMwc m_rng;
|
|
|
|
uint32_t m_width;
|
|
uint32_t m_height;
|
|
uint32_t m_debug;
|
|
uint32_t m_reset;
|
|
uint32_t m_lumBgra8;
|
|
|
|
uint32_t m_oldWidth;
|
|
uint32_t m_oldHeight;
|
|
uint32_t m_oldReset;
|
|
|
|
float m_speed;
|
|
float m_middleGray;
|
|
float m_white;
|
|
float m_threshold;
|
|
|
|
int32_t m_scrollArea;
|
|
|
|
const bgfx::Caps* m_caps;
|
|
float m_time;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
ENTRY_IMPLEMENT_MAIN(
|
|
ExampleHDR
|
|
, "09-hdr"
|
|
, "Using multiple views with frame buffers, and view order remapping."
|
|
, "https://bkaradzic.github.io/bgfx/examples.html#hdr"
|
|
);
|