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mrt.cpp
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mrt.cpp
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// Copyright (C) 2008-2012 Christian Stehno, Colin MacDonald
// No rights reserved: this software is in the public domain.
#include "testUtils.h"
using namespace irr;
//! Tests rendering MRTs
static bool testWithDriver(video::E_DRIVER_TYPE driverType)
{
IrrlichtDevice *device = createDevice (driverType, core::dimension2d < u32 > (220, 80));
if (!device)
return true; // No error if device does not exist
video::IVideoDriver* driver = device->getVideoDriver();
// We need at least GLSL 1.10 or HLSL 1.1
// if (driver->getDriverAttributes().getAttributeAsInt("ShaderLanguageVersion")<=100)
// return true;
stabilizeScreenBackground(driver);
logTestString("Testing driver %ls\n", driver->getName());
const char* const ps1="struct PS_INPUT\n {\n float4 Position : POSITION0;\n };\n\n struct PS_OUTPUT\n {\n float4 Color : COLOR0;\n float4 Normal : COLOR1;\n float4 Depth : COLOR2;\n };\n PS_OUTPUT pixelMain( PS_INPUT Input )\n {\n PS_OUTPUT Output;\n Output.Color = float4(1.0,1.0,1.0,1.0);\n Output.Normal = float4(0.0,1.0,0.0,1.0);\n Output.Depth = float4(0.0,0.0,1.0,1.0);\n return Output;\n }";
const char* const ps2="void main(void)\n {\n gl_FragData[0] = vec4(1.0,1.0,1.0,1.0);\n gl_FragData[1] = vec4(0.0,1.0,0.0,1.0);\n gl_FragData[2] = vec4(0.0,0.0,1.0,1.0);\n }";
// variable
video::IRenderTarget* renderTarget = 0;
core::array<video::ITexture*> renderTargetTex;
video::ITexture* renderTargetDepth = 0;
const core::dimension2du texsize(64,64);
bool result=true;
s32 newMaterialType = -1;
if (device->getVideoDriver()->getDriverAttributes().getAttributeAsInt("MaxMultipleRenderTargets") > 2)
{
renderTargetTex.set_used(3);
renderTargetTex[0] = driver->addRenderTargetTexture(texsize, "rta", video::ECF_A8R8G8B8);
renderTargetTex[1] = driver->addRenderTargetTexture(texsize, "rtb", video::ECF_A8R8G8B8);
renderTargetTex[2] = driver->addRenderTargetTexture(texsize, "rtc", video::ECF_A8R8G8B8);
renderTargetDepth = driver->addRenderTargetTexture(texsize, "rtd", video::ECF_D16);
renderTarget = driver->addRenderTarget();
renderTarget->setTexture(renderTargetTex, renderTargetDepth);
video::IGPUProgrammingServices* gpu = driver->getGPUProgrammingServices();
if (gpu)
{
newMaterialType = gpu->addHighLevelShaderMaterial(
0, "vertexMain", video::EVST_VS_1_1,
driverType==video::EDT_DIRECT3D9?ps1:ps2, "pixelMain", video::EPST_PS_1_1);
}
}
// shader creation succeeded
if (newMaterialType!=-1)
{
scene::ISceneNode* node = device->getSceneManager()->addCubeSceneNode();
node->setMaterialType((video::E_MATERIAL_TYPE)newMaterialType);
device->getSceneManager()->addCameraSceneNode(0, core::vector3df(0,0,-10));
driver->beginScene(video::ECBF_COLOR, video::SColor(255, 0, 0, 0));
// render
driver->setRenderTargetEx(renderTarget, video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,0,0,0));
device->getSceneManager()->drawAll();
driver->setRenderTargetEx(0, 0, video::SColor(255, 0, 0, 0));
// draw debug rt
driver->draw2DImage(renderTargetTex[0], core::position2d<s32>(0,0));
driver->draw2DImage(renderTargetTex[1], core::position2d<s32>(64,0));
driver->draw2DImage(renderTargetTex[2], core::position2d<s32>(128,0));
driver->endScene();
result = takeScreenshotAndCompareAgainstReference(driver, "-mrt.png");
driver->beginScene(video::ECBF_COLOR, video::SColor(255, 0, 0, 0));
// render
device->getSceneManager()->getActiveCamera()->setPosition(core::vector3df(0,0,-15));
driver->setRenderTargetEx(renderTarget, video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,0,0,0));
device->getSceneManager()->drawAll();
driver->setRenderTargetEx(0, 0, video::SColor(255,0,0,0));
// draw debug rt
driver->draw2DImage(renderTargetTex[0], core::position2d<s32>(0,0));
driver->draw2DImage(renderTargetTex[1], core::position2d<s32>(64,0));
driver->draw2DImage(renderTargetTex[2], core::position2d<s32>(128,0));
driver->endScene();
result &= takeScreenshotAndCompareAgainstReference(driver, "-mrt2.png");
}
device->closeDevice();
device->run();
device->drop();
return result;
}
bool mrt(void)
{
bool result = true;
TestWithAllHWDrivers(testWithDriver);
return result;
}