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Cleanup.

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This commit is contained in:
Branimir Karadžić
2018-09-19 20:07:53 -07:00
parent 99e6da5b50
commit e1da0f5e44
1 changed files with 108 additions and 92 deletions
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200
examples/38-bloom/bloom.cpp
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@@ -1,8 +1,7 @@
/*
* Copyright 2011-2018 Branimir Karadzic. All rights reserved.
* Copyright 2018 Eric Arnebäck. All rights reserved.
* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
* The bloom effect was based on the following presentation:
* http://www.iryoku.com/next-generation-post-processing-in-call-of-duty-advanced-warfare
*/
@@ -12,7 +11,6 @@
#include "imgui/imgui.h"
#include "camera.h"
#include "bounds.h"
#include <math.h>
namespace
{
@@ -39,7 +37,7 @@ struct PosVertex
float m_x;
float m_y;
float m_z;
static void init()
{
ms_decl
@@ -75,7 +73,7 @@ struct PosTexCoord0Vertex
bgfx::VertexDecl PosTexCoord0Vertex::ms_decl;
float cs = 0.29f;
constexpr float cs = 0.29f;
static PosVertex s_cubeVertices[24] =
{
@@ -212,60 +210,62 @@ public:
// Set geometry pass view clear state.
bgfx::setViewClear(RENDER_PASS_GEOMETRY_ID
, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
, 1.0f
, 0
, 0
, 0
);
, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
, 1.0f
, 0
, 0
, 0
);
// we need to clear the textures in the chain, before downsampling into them.
for (uint16_t ii = 0; ii < TEX_CHAIN_LEN-1; ++ii) {
for (uint16_t ii = 0; ii < TEX_CHAIN_LEN-1; ++ii)
{
bgfx::setViewClear(RENDER_PASS_DOWNSAMPLE0_ID + ii
, BGFX_CLEAR_COLOR | BGFX_CLEAR_DEPTH
, 1.0f
, 0
, 0
);
);
}
// Create vertex stream declaration.
PosVertex::init();
PosTexCoord0Vertex::init();
// Create static vertex buffer.
m_vbh = bgfx::createVertexBuffer(
bgfx::makeRef(s_cubeVertices, sizeof(s_cubeVertices) )
, PosVertex::ms_decl
);
bgfx::makeRef(s_cubeVertices, sizeof(s_cubeVertices) )
, PosVertex::ms_decl
);
m_ibh = bgfx::createIndexBuffer(bgfx::makeRef(s_cubeIndices, sizeof(s_cubeIndices) ) );
s_albedo = bgfx::createUniform("s_albedo", bgfx::UniformType::Int1);
s_tex = bgfx::createUniform("s_tex", bgfx::UniformType::Int1);
s_depth = bgfx::createUniform("s_depth", bgfx::UniformType::Int1);
s_light = bgfx::createUniform("s_light", bgfx::UniformType::Int1);
s_albedo = bgfx::createUniform("s_albedo", bgfx::UniformType::Int1);
s_tex = bgfx::createUniform("s_tex", bgfx::UniformType::Int1);
s_depth = bgfx::createUniform("s_depth", bgfx::UniformType::Int1);
s_light = bgfx::createUniform("s_light", bgfx::UniformType::Int1);
u_pixelSize = bgfx::createUniform("u_pixelSize", bgfx::UniformType::Vec4);
u_intensity = bgfx::createUniform("u_intensity", bgfx::UniformType::Vec4);
u_color = bgfx::createUniform("u_color", bgfx::UniformType::Vec4);
u_mtx = bgfx::createUniform("u_mtx", bgfx::UniformType::Mat4);
u_color = bgfx::createUniform("u_color", bgfx::UniformType::Vec4);
u_mtx = bgfx::createUniform("u_mtx", bgfx::UniformType::Mat4);
// Create program from shaders.
m_geomProgram = loadProgram("vs_albedo_output", "fs_albedo_output");
m_downsampleProgram = loadProgram("vs_fullscreen", "fs_downsample");
m_upsampleProgram = loadProgram("vs_fullscreen", "fs_upsample");
m_combineProgram = loadProgram("vs_fullscreen", "fs_bloom_combine");
m_geomProgram = loadProgram("vs_albedo_output", "fs_albedo_output");
m_downsampleProgram = loadProgram("vs_fullscreen", "fs_downsample");
m_upsampleProgram = loadProgram("vs_fullscreen", "fs_upsample");
m_combineProgram = loadProgram("vs_fullscreen", "fs_bloom_combine");
m_gbufferTex[0].idx = bgfx::kInvalidHandle;
m_gbufferTex[1].idx = bgfx::kInvalidHandle;
m_gbufferTex[2].idx = bgfx::kInvalidHandle;
m_gbuffer.idx = bgfx::kInvalidHandle;
m_gbuffer.idx = bgfx::kInvalidHandle;
for (int ii = 0; ii < TEX_CHAIN_LEN; ++ii) {
m_texChainFb[ii].idx = bgfx::kInvalidHandle;
for (int ii = 0; ii < TEX_CHAIN_LEN; ++ii)
{
m_texChainFb[ii].idx = bgfx::kInvalidHandle;
m_texChainTex[ii].idx = bgfx::kInvalidHandle;
}
// Imgui.
imguiCreate();
@@ -281,7 +281,7 @@ public:
m_oldReset = m_reset;
m_scrollArea = 0;
cameraCreate();
const float initialPos[3] = { 0.0f, 0.0f, -15.0f };
@@ -313,7 +313,7 @@ public:
bgfx::destroy(m_downsampleProgram);
bgfx::destroy(m_upsampleProgram);
bgfx::destroy(m_combineProgram);
bgfx::destroy(s_albedo);
bgfx::destroy(s_tex);
bgfx::destroy(s_depth);
@@ -334,15 +334,16 @@ public:
{
if (!entry::processEvents(m_width, m_height, m_debug, m_reset, &m_mouseState) )
{
imguiBeginFrame(m_mouseState.m_mx
, m_mouseState.m_my
, (m_mouseState.m_buttons[entry::MouseButton::Left ] ? IMGUI_MBUT_LEFT : 0)
| (m_mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
| (m_mouseState.m_buttons[entry::MouseButton::Middle] ? IMGUI_MBUT_MIDDLE : 0)
, m_mouseState.m_mz
, uint16_t(m_width)
, uint16_t(m_height)
);
imguiBeginFrame(
m_mouseState.m_mx
, m_mouseState.m_my
, (m_mouseState.m_buttons[entry::MouseButton::Left ] ? IMGUI_MBUT_LEFT : 0)
| (m_mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
| (m_mouseState.m_buttons[entry::MouseButton::Middle] ? IMGUI_MBUT_MIDDLE : 0)
, m_mouseState.m_mz
, uint16_t(m_width)
, uint16_t(m_height)
);
showExampleDialog(this);
@@ -385,7 +386,7 @@ public:
{
bgfx::destroy(m_gbuffer);
}
const uint64_t tsFlags = 0
| BGFX_TEXTURE_RT
| BGFX_SAMPLER_U_CLAMP
@@ -399,32 +400,38 @@ public:
bgfx::destroy(m_texChainFb[ii]);
}
m_texChainTex[ii] = bgfx::createTexture2D((uint16_t)m_width / (uint16_t)pow(2, ii), (uint16_t)m_height / (uint16_t)pow(2, ii), false, 1, bgfx::TextureFormat::RGBA32F, tsFlags);
m_texChainFb[ii] = bgfx::createFrameBuffer(1, &m_texChainTex[ii], true);
m_texChainTex[ii] = bgfx::createTexture2D(
(uint16_t)m_width / (uint16_t)bx::pow(2.0f, ii)
, (uint16_t)m_height / (uint16_t)bx::pow(2.0f, ii)
, false
, 1
, bgfx::TextureFormat::RGBA32F
, tsFlags
);
m_texChainFb[ii] = bgfx::createFrameBuffer(1, &m_texChainTex[ii], true);
}
m_gbufferTex[0] = bgfx::createTexture2D(uint16_t(m_width), uint16_t(m_height), false, 1, bgfx::TextureFormat::RGBA32F, tsFlags);
m_gbufferTex[1] = m_texChainTex[0];
m_gbufferTex[2] = bgfx::createTexture2D(uint16_t(m_width), uint16_t(m_height), false, 1, bgfx::TextureFormat::D24S8, tsFlags);
m_gbuffer = bgfx::createFrameBuffer(BX_COUNTOF(m_gbufferTex), m_gbufferTex, true);
}
ImGui::SetNextWindowPos(
ImVec2(m_width/7.0f, m_height - m_height / 2.0f - 10.0f )
ImVec2(m_width - m_width / 5.0f - 10.0f, 10.0f)
, ImGuiCond_FirstUseEver
);
);
ImGui::SetNextWindowSize(
ImVec2(m_width / 5.0f, m_height / 3.0f)
ImVec2(m_width / 5.0f, m_height / 6.0f)
, ImGuiCond_FirstUseEver
);
);
ImGui::Begin("Settings"
, NULL
, 0
);
);
ImGui::SliderFloat("intensity", &m_intensity, 0.0f, 3.0f);
ImGui::End();
// Update camera.
@@ -438,20 +445,23 @@ public:
{
bgfx::setViewRect(RENDER_PASS_GEOMETRY_ID, 0, 0, uint16_t(m_width), uint16_t(m_height) );
for (uint16_t ii = 0; ii < TEX_CHAIN_LEN-1; ++ii) {
bgfx::setViewRect(RENDER_PASS_DOWNSAMPLE0_ID + ii, 0, 0,
uint16_t(m_width / (uint16_t)pow(2, ii+1)),
uint16_t(m_height / (uint16_t)pow(2, ii+1)));
for (uint16_t ii = 0; ii < TEX_CHAIN_LEN-1; ++ii)
{
bgfx::setViewRect(RENDER_PASS_DOWNSAMPLE0_ID + ii, 0, 0
, uint16_t(m_width / (uint16_t)bx::pow(2.0f, ii+1) )
, uint16_t(m_height / (uint16_t)bx::pow(2.0f, ii+1) )
);
}
for (uint16_t ii = 0; ii < TEX_CHAIN_LEN-1; ++ii) {
bgfx::setViewRect(RENDER_PASS_UPSAMPLE0_ID + ii, 0, 0,
uint16_t(m_width / (uint16_t)pow(2, TEX_CHAIN_LEN-ii - 2)),
uint16_t(m_height / (uint16_t)pow(2, TEX_CHAIN_LEN - ii - 2)));
for (uint16_t ii = 0; ii < TEX_CHAIN_LEN-1; ++ii)
{
bgfx::setViewRect(RENDER_PASS_UPSAMPLE0_ID + ii, 0, 0
, uint16_t(m_width / (uint16_t)bx::pow(2.0f, TEX_CHAIN_LEN - ii - 2) )
, uint16_t(m_height / (uint16_t)bx::pow(2.0f, TEX_CHAIN_LEN - ii - 2) )
);
}
bx::mtxProj(proj, 60.0f, float(m_width) / float(m_height), 0.1f, 100.0f, m_caps->homogeneousDepth);
bx::mtxProj(proj, 60.0f, float(m_width) / float(m_height), 0.1f, 100.0f, m_caps->homogeneousDepth);
bgfx::setViewFrameBuffer(RENDER_PASS_GEOMETRY_ID, m_gbuffer);
bgfx::setViewTransform(RENDER_PASS_GEOMETRY_ID, view, proj);
@@ -459,13 +469,15 @@ public:
bx::mtxOrtho(proj, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 100.0f, 0.0f, m_caps->homogeneousDepth);
for (uint16_t ii = 0; ii < TEX_CHAIN_LEN-1; ++ii) {
for (uint16_t ii = 0; ii < TEX_CHAIN_LEN-1; ++ii)
{
bgfx::setViewTransform(RENDER_PASS_DOWNSAMPLE0_ID + ii, NULL, proj);
bgfx::setViewFrameBuffer(RENDER_PASS_DOWNSAMPLE0_ID + ii, m_texChainFb[ii+1]);
}
for (uint16_t ii = 0; ii < TEX_CHAIN_LEN-1; ++ii) {
bgfx::setViewTransform(RENDER_PASS_UPSAMPLE0_ID + ii, NULL, proj);
for (uint16_t ii = 0; ii < TEX_CHAIN_LEN-1; ++ii)
{
bgfx::setViewTransform(RENDER_PASS_UPSAMPLE0_ID + ii, NULL, proj);
bgfx::setViewFrameBuffer(RENDER_PASS_UPSAMPLE0_ID + ii, m_texChainFb[TEX_CHAIN_LEN - ii - 2]);
}
@@ -474,7 +486,8 @@ public:
const uint32_t dim = 7;
const int COLS = 5;
float color[4*COLS] = {
float color[4*COLS] =
{
0.0f, 1.0f, 0.0f, 1.0f,
1.0f, 0.0f, 0.0f, 1.0f,
0.0f, 0.0f, 1.0f, 1.0f,
@@ -495,14 +508,11 @@ public:
t += 0.07f * time;
// float r = (float)sin(0.47f * time * 2.0f * 3.14f) * 1.0f + 1.9f;
float r = (float)sin(0.47f * time * 2.0f * 3.14f) * 1.0f + 1.4f;
float r = bx::sin(0.47f * time * 2.0f * 3.14f) * 1.0f + 1.4f;
//r = 1.9f;
mtx[12] = (float)sin(t * 2.0f * 3.14f)*r;
mtx[13] = (float)cos(t * 2.0f * 3.14f)*r;
mtx[14] = 0.2f * ((float)xx / (float)dim);
mtx[12] = bx::sin(t * 2.0f * 3.14f)*r;
mtx[13] = bx::cos(t * 2.0f * 3.14f)*r;
mtx[14] = 0.2f * (float)xx / (float)dim;
// Set transform for draw call.
bgfx::setTransform(mtx);
@@ -525,12 +535,14 @@ public:
}
// now downsample.
for(uint16_t ii = 0; ii < TEX_CHAIN_LEN-1; ++ii)
for (uint16_t ii = 0; ii < TEX_CHAIN_LEN-1; ++ii)
{
float pixelSize[4] = {
1.0f / (float)(m_width / (uint16_t)pow(2, ii + 1)),
1.0f / (float)(m_height / (uint16_t)pow(2, ii + 1)), 0.0f, 0.0f };
float pixelSize[4] =
{
1.0f / (float)(m_width / (uint16_t)bx::pow(2.0f, ii + 1)),
1.0f / (float)(m_height / (uint16_t)bx::pow(2.0f, ii + 1)), 0.0f, 0.0f
};
bgfx::setUniform(u_pixelSize, pixelSize);
bgfx::setTexture(0, s_tex, m_texChainTex[ii]);
@@ -538,26 +550,30 @@ public:
| BGFX_STATE_WRITE_RGB
| BGFX_STATE_WRITE_A
);
screenSpaceQuad((float)m_width, (float)m_height, s_texelHalf, m_caps->originBottomLeft);
bgfx::submit(RENDER_PASS_DOWNSAMPLE0_ID + ii, m_downsampleProgram);
bgfx::submit(RENDER_PASS_DOWNSAMPLE0_ID + ii, m_downsampleProgram);
}
// now upsample.
for (uint16_t ii = 0; ii < TEX_CHAIN_LEN - 1; ++ii)
{
float pixelSize[4] = {
1.0f / (float)(m_width / (uint16_t)pow(2, TEX_CHAIN_LEN - 2 - ii)),
1.0f / (float)(m_height / (uint16_t)pow(2, TEX_CHAIN_LEN - 2 - ii)), 0.0f, 0.0f };
float intensity[4] = { m_intensity, 0.0f, 0.0f, 0.0f };
const float pixelSize[4] =
{
1.0f / (float)(m_width / (uint16_t)bx::pow(2.0f, TEX_CHAIN_LEN - 2 - ii) ),
1.0f / (float)(m_height / (uint16_t)bx::pow(2.0f, TEX_CHAIN_LEN - 2 - ii) ),
0.0f,
0.0f
};
const float intensity[4] = { m_intensity, 0.0f, 0.0f, 0.0f };
bgfx::setUniform(u_pixelSize, pixelSize);
bgfx::setUniform(u_intensity, intensity);
// Combine color and light buffers.
bgfx::setTexture(0, s_tex, m_texChainTex[TEX_CHAIN_LEN - 1 - ii]);
// as we upscale, we also sum with the previous mip level. We do this by alpha blending.
// as we upscale, we also sum with the previous mip level. We do this by alpha blending.
bgfx::setState(
0
| BGFX_STATE_WRITE_RGB
@@ -577,7 +593,7 @@ public:
| BGFX_STATE_WRITE_A
);
screenSpaceQuad( (float)m_width, (float)m_height, s_texelHalf, m_caps->originBottomLeft);
bgfx::submit(RENDER_PASS_COMBINE_ID, m_combineProgram);
bgfx::submit(RENDER_PASS_COMBINE_ID, m_combineProgram);
}
imguiEndFrame();
@@ -594,7 +610,7 @@ public:
bgfx::VertexBufferHandle m_vbh;
bgfx::IndexBufferHandle m_ibh;
bgfx::UniformHandle s_albedo;
bgfx::UniformHandle s_tex;
bgfx::UniformHandle s_depth;
@@ -605,16 +621,16 @@ public:
bgfx::UniformHandle u_mtx;
bgfx::ProgramHandle m_geomProgram;
bgfx::ProgramHandle m_downsampleProgram;
bgfx::ProgramHandle m_upsampleProgram;
bgfx::ProgramHandle m_combineProgram;
bgfx::TextureHandle m_gbufferTex[3];
bgfx::FrameBufferHandle m_gbuffer;
bgfx::FrameBufferHandle m_texChainFb[TEX_CHAIN_LEN];
bgfx::TextureHandle m_texChainTex[TEX_CHAIN_LEN];