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Implement a global shader parameter passing system and useful shaders

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This commit is contained in:
Perttu Ahola 2012-12-01 03:02:16 +02:00
parent 22e6fb7056
commit 27373919f4
15 changed files with 241 additions and 90 deletions
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52
src/game.cpp
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@ -24,6 +24,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include <IGUIButton.h>
#include <IGUIStaticText.h>
#include <IGUIFont.h>
#include <IMaterialRendererServices.h>
#include "client.h"
#include "server.h"
#include "guiPauseMenu.h"
@ -835,6 +836,49 @@ public:
}
};
class GameGlobalShaderConstantSetter : public IShaderConstantSetter
{
Sky *m_sky;
bool *m_force_fog_off;
f32 *m_fog_range;
public:
GameGlobalShaderConstantSetter(Sky *sky, bool *force_fog_off,
f32 *fog_range):
m_sky(sky),
m_force_fog_off(force_fog_off),
m_fog_range(fog_range)
{}
~GameGlobalShaderConstantSetter() {}
virtual void onSetConstants(video::IMaterialRendererServices *services,
bool is_highlevel)
{
if(!is_highlevel)
return;
// Background color
video::SColor bgcolor = m_sky->getBgColor();
video::SColorf bgcolorf(bgcolor);
float bgcolorfa[4] = {
bgcolorf.r,
bgcolorf.g,
bgcolorf.b,
bgcolorf.a,
};
services->setPixelShaderConstant("skyBgColor", bgcolorfa, 4);
// Fog distance
float fog_distance = *m_fog_range;
if(*m_force_fog_off)
fog_distance = 10000*BS;
services->setPixelShaderConstant("fogDistance", &fog_distance, 1);
}
private:
IrrlichtDevice *m_device;
};
void the_game(
bool &kill,
bool random_input,
@ -1250,6 +1294,7 @@ void the_game(
bool show_hud = true;
bool show_chat = true;
bool force_fog_off = false;
f32 fog_range = 100*BS;
bool disable_camera_update = false;
bool show_debug = g_settings->getBool("show_debug");
bool show_profiler_graph = false;
@ -1259,6 +1304,12 @@ void the_game(
float time_of_day = 0;
float time_of_day_smooth = 0;
/*
Shader constants
*/
shsrc->addGlobalConstantSetter(
new GameGlobalShaderConstantSetter(sky, &force_fog_off, &fog_range));
/*
Main loop
*/
@ -2434,7 +2485,6 @@ void the_game(
Fog range
*/
f32 fog_range;
if(farmesh)
{
fog_range = BS*farmesh_range;