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Added imgui parameter tweaker to HDR example.

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This commit is contained in:
bkaradzic 2013-04-24 21:40:54 -07:00
parent 6e374982be
commit 872b25b447
1 changed files with 51 additions and 4 deletions
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55
examples/09-hdr/hdr.cpp
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@ -12,6 +12,7 @@
#include "../common/dbg.h"
#include "../common/math.h"
#include "../common/processevents.h"
#include "../common/imgui/imgui.h"
#include <stdio.h>
#include <string.h>
@ -493,10 +494,32 @@ int _main_(int /*_argc*/, char** /*_argv*/)
bgfx::RenderTargetHandle blur;
blur = bgfx::createRenderTarget(width/8, height/8, BGFX_RENDER_TARGET_COLOR_RGBA8);
FILE* file = fopen("font/droidsans.ttf", "rb");
uint32_t size = (uint32_t)fsize(file);
void* data = malloc(size);
size_t ignore = fread(data, 1, size, file);
BX_UNUSED(ignore);
fclose(file);
imguiCreate(data, size);
free(data);
float speed = 0.37f;
float middleGray = 0.18f;
float white = 1.1f;
float treshold = 1.5f;
int32_t scrollArea = 0;
uint32_t oldWidth = 0;
uint32_t oldHeight = 0;
while (!processEvents(width, height, debug, reset) )
MouseState mouseState;
float time = 0.0f;
while (!processEvents(width, height, debug, reset, &mouseState) )
{
if (oldWidth != width
|| oldHeight != height)
@ -513,6 +536,28 @@ int _main_(int /*_argc*/, char** /*_argv*/)
blur = bgfx::createRenderTarget(width/8, height/8, BGFX_RENDER_TARGET_COLOR_RGBA8);
}
imguiBeginFrame(mouseState.m_mx
, mouseState.m_my
, (mouseState.m_buttons[entry::MouseButton::Left ] ? IMGUI_MBUT_LEFT : 0)
| (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
, 0
, width
, height
);
imguiBeginScrollArea("Settings", width - width / 5 - 10, 10, width / 5, height / 3, &scrollArea);
imguiSeparatorLine();
imguiSlider("Speed", &speed, 0.0f, 1.0f, 0.01f);
imguiSeparator();
imguiSlider("Middle gray", &middleGray, 0.1f, 1.0f, 0.01f);
imguiSlider("White point", &white, 0.1f, 2.0f, 0.01f);
imguiSlider("Treshold", &treshold, 0.1f, 2.0f, 0.01f);
imguiEndScrollArea();
imguiEndFrame();
// 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);
@ -524,7 +569,7 @@ int _main_(int /*_argc*/, char** /*_argv*/)
const double freq = double(bx::getHPFrequency() );
const double toMs = 1000.0/freq;
float time = (float)(now/freq);
time += (float)(frameTime*speed/freq);
bgfx::setUniform(u_time, &time);
@ -588,7 +633,7 @@ int _main_(int /*_argc*/, char** /*_argv*/)
float mtx[16];
mtxRotateXY(mtx
, 0.0f
, time*0.37f
, time
);
float temp[4];
@ -653,7 +698,7 @@ int _main_(int /*_argc*/, char** /*_argv*/)
screenSpaceQuad(1.0f, 1.0f, s_flipV);
bgfx::submit(6);
float tonemap[4] = { 0.18f, square(1.1f), 1.5f, 0.0f };
float tonemap[4] = { middleGray, square(white), treshold, 0.0f };
bgfx::setUniform(u_tonemap, tonemap);
// Bright pass treshold is tonemap[3].
@ -686,6 +731,8 @@ int _main_(int /*_argc*/, char** /*_argv*/)
bgfx::frame();
}
imguiDestroy();
// Cleanup.
mesh.unload();