void RenderFrameDX9(void)
{
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
device->BeginScene();
AddImpulse();
WaterSimulation();
HeightmapToNormal();
device->SetRenderTarget(0, g_pMainFramebuffer);
device->SetDepthStencilSurface(g_pMainDepthbuffer);
device->Clear(0, NULL, D3DCLEAR_ZBUFFER, 0x0, 1.0f, 0);
RenderWater();
DrawObject();
SwapHeightmaps();
float x = -1.0f;
float y = -1.0f;
float w = 0.4f;
float h = 0.4f;
if ( g_iMode & 0x01 )
{
DrawImage(g_pTextures[TEX_HEIGHT2], x, y, w, h, &g_ImageInfo);
x+=w;
}
if ( g_iMode & 0x02 )
{
D3DXHANDLE shader = g_pWaterEffect->GetTechniqueByName("Heightmap");
D3DXHANDLE heightmap_var = g_pWaterEffect->GetTechniqueByName("heightmap_current");
g_pWaterEffect->SetTechnique(shader);
g_pWaterEffect->SetTexture(heightmap_var, g_pTextures[TEX_HEIGHT2]);
g_pWaterEffect->Begin(NULL, 0);
g_pWaterEffect->BeginPass(0);
GutDrawScreenQuad_DX9(x, y, w, h, &g_ImageInfo);
g_pWaterEffect->EndPass();
g_pWaterEffect->End();
x+=w;
}
if ( g_iMode & 0x04 )
{
DrawImage(g_pTextures[TEX_NORMAL], x, y, w, h, &g_ImageInfo);
x+=w;
}
device->EndScene();
device->Present( NULL, NULL, NULL, NULL );
}
FXShader::FXShader(LPD3DXEFFECT FX,const char* name) : FXHandle(FX,name) {
handle = FX->GetTechniqueByName(name);
if(!handle) {
Globals::console->Write("ERROR: cannot create D3DXHANDLE to shader '%s'\r\n",name);
}
Reset();
}
void AutoExposure(void)
{
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
D3DXHANDLE shader = g_pExposureEffect->GetTechniqueByName("AutoExposure");
g_pExposureEffect->SetTechnique(shader);
Vector4 vMiddleGray(0.5f);
Vector4 vMultiplierClamp(0.2f, 3.0f, 0.0f, 0.0f);
D3DXHANDLE middlegray_var = g_pExposureEffect->GetParameterByName(NULL, "vMiddleGray");
D3DXHANDLE clamp_var = g_pExposureEffect->GetParameterByName(NULL, "vMultiplierClamp");
D3DXHANDLE image0_var = g_pExposureEffect->GetParameterByName(NULL, "Image");
D3DXHANDLE image1_var = g_pExposureEffect->GetParameterByName(NULL, "Image2");
g_pExposureEffect->SetVector(middlegray_var, (D3DXVECTOR4*)&vMiddleGray);
g_pExposureEffect->SetVector(clamp_var, (D3DXVECTOR4*)&vMultiplierClamp);
g_pExposureEffect->SetTexture(image0_var, g_pFrameBuffer[FULLSIZE]);
g_pExposureEffect->SetTexture(image1_var, g_pFrameBuffer[LUMINANCE_TEMP]);
g_pExposureEffect->Begin(NULL, 0);
g_pExposureEffect->BeginPass(0);
DrawFullScreenQuad(&g_ImageInfo);
g_pExposureEffect->EndPass();
g_pExposureEffect->End();
}
void ConverToLogLuminance(LPDIRECT3DTEXTURE9 pSource, sImageInfo *pInfo)
{
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
device->SetRenderTarget(0, g_pFrameSurface[DOWNSAMPLED_256x256]);
device->SetDepthStencilSurface(NULL);
D3DXHANDLE shader = g_pExposureEffect->GetTechniqueByName("LogLuminance");
g_pExposureEffect->SetTechnique(shader);
D3DXHANDLE tablevar = g_pExposureEffect->GetParameterByName(NULL, "vLuminanceTable");
D3DXHANDLE imagevar = g_pExposureEffect->GetParameterByName(NULL, "Image");
Vector4 vTable(0.21f, 0.71f, 0.072f);
g_pExposureEffect->SetVector(tablevar, (D3DXVECTOR4*)&vTable);
g_pExposureEffect->SetTexture(imagevar, pSource);
g_pExposureEffect->Begin(NULL, 0);
g_pExposureEffect->BeginPass(0);
DrawFullScreenQuad(pInfo);
g_pExposureEffect->EndPass();
g_pExposureEffect->End();
}
static void WaterSimulation(void)
{
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
device->SetRenderTarget(0, g_pSurfaces[TEX_HEIGHT2]);
device->SetDepthStencilSurface(NULL);
D3DXHANDLE shader = g_pWaterEffect->GetTechniqueByName("WaterSimulation");
D3DXHANDLE heightmap_current_var = g_pWaterEffect->GetParameterByName(NULL, "heightmap_current");
D3DXHANDLE heightmap_prev_var = g_pWaterEffect->GetParameterByName(NULL, "heightmap_prev");
D3DXHANDLE texturesize_var = g_pWaterEffect->GetParameterByName(NULL, "texture_size");
D3DXHANDLE damping_var = g_pWaterEffect->GetParameterByName(NULL, "fDamping");
Vector4 texturesize;
texturesize[0] = 1.0f/(float)g_ImageInfo.m_iWidth;
texturesize[1] = 1.0f/(float)g_ImageInfo.m_iHeight;
texturesize[2] = (float)g_ImageInfo.m_iWidth;
texturesize[3] = (float)g_ImageInfo.m_iHeight;
g_pWaterEffect->SetTechnique(shader);
g_pWaterEffect->SetTexture(heightmap_prev_var, g_pTextures[TEX_HEIGHT0]);
g_pWaterEffect->SetTexture(heightmap_current_var, g_pTextures[TEX_HEIGHT1]);
g_pWaterEffect->SetFloat(damping_var, 0.99f);
g_pWaterEffect->SetVector(texturesize_var, (D3DXVECTOR4*)&texturesize);
g_pWaterEffect->Begin(NULL,0);
g_pWaterEffect->BeginPass(0);
GutDrawFullScreenQuad_DX9(&g_ImageInfo);
g_pWaterEffect->EndPass();
g_pWaterEffect->End();
}
static void AddImpulse(void)
{
static Vector4 vPosition(0.0f, 0.0f, 0.0f, 0.0f);
//Vector4 vDiff = vPosition - g_vPosition;
Vector4 vDiff = g_vPosition - vPosition;
Vector4 vLength = vDiff.Length();
if ( vLength[0]<2.0f )
return;
Vector4 vDir = vDiff / vLength;
Vector4 vVec0(vDir[1],-vDir[0], 0.0f, 0.0f);
Vector4 vVec1(vDir[0], vDir[1], 0.0f, 0.0f);
vPosition = g_vPosition;
Vector4 vVec0_old = g_orient_matrix[0];
Vector4 vVec1_old = g_orient_matrix[1];
Vector4 vVec0_new = VectorLerp(vVec0_old, vVec0, 0.2f);
Vector4 vVec1_new = VectorLerp(vVec1_old, vVec1, 0.2f);
vVec0_new.Normalize();
vVec1_new.Normalize();
Vector4 vVec2_new = Vector3CrossProduct(vVec0_new, vVec1_new);
g_orient_matrix.Identity();
g_orient_matrix[0] = vVec0_new;
g_orient_matrix[1] = vVec1_new;
g_orient_matrix[2] = vVec2_new;
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
device->SetRenderTarget(0, g_pSurfaces[TEX_HEIGHT1]);
device->SetDepthStencilSurface(NULL);
Matrix4x4 view_matrix = g_Control.GetViewMatrix();
Matrix4x4 world_matrix;
world_matrix.Scale_Replace(g_fRippleSize, g_fRippleSize, 1.0f);
world_matrix[3] = g_vPosition;
Matrix4x4 wvp_matrix = g_orient_matrix * world_matrix * view_matrix * g_proj_matrix;
D3DXHANDLE shader = g_pWaterEffect->GetTechniqueByName("AddImpulse");
D3DXHANDLE wvp_matrix_var = g_pWaterEffect->GetParameterByName(NULL, "wvp_matrix");
D3DXHANDLE force_var = g_pWaterEffect->GetParameterByName(NULL, "fForce");
g_pWaterEffect->SetTechnique(shader);
g_pWaterEffect->SetMatrix(wvp_matrix_var, (D3DXMATRIX *)&wvp_matrix);
g_pWaterEffect->SetFloat(force_var, 0.05f);
g_pWaterEffect->Begin(NULL, 0);
g_pWaterEffect->BeginPass(0);
g_Model_DX9.Render(0);
g_pWaterEffect->EndPass();
g_pWaterEffect->End();
vPosition = g_vPosition;
}
bool InitResourceDX9(void)
{
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
for ( int i=0; i<NUM_FRAMEBUFFERS; i++ )
{
g_pFrameBuffer[i] = NULL;
g_pFrameSurface[i] = NULL;
}
CGutModel::SetTexturePath("../../textures/");
if ( !g_Model_DX9.ConvertToDX9Model(&g_Model) )
return false;
g_pEffect = GutLoadFXShaderDX9("../../shaders/Posteffect.fx");
if ( NULL==g_pEffect )
return false;
g_pAddImageShader = g_pEffect->GetTechniqueByName("DrawImage");
g_pBlurShader = g_pEffect->GetTechniqueByName("BlurImage");
g_pBrightnessShader = g_pEffect->GetTechniqueByName("Brightness");
if ( NULL==g_pAddImageShader || NULL==g_pBlurShader ||
NULL==g_pBrightnessShader )
return false;
g_pExposureEffect = GutLoadFXShaderDX9("../../shaders/Exposure.fx");
if ( NULL==g_pExposureEffect )
return false;
if ( !ReInitResourceDX9() )
return false;
return true;
}
static void RenderParticle(void)
{
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
int w, h; GutGetWindowSize(w, h);
Matrix4x4 wvp_matrix = g_Control.GetObjectMatrix() * g_Control.GetViewMatrix() * g_proj_matrix;
Vector4 ScreenSize( (float)w, (float)h, 0.0f, 0.0f);
float fTanW = FastMath::Tan( FastMath::DegToRad(g_fFOV) );
device->SetRenderTarget(0, g_pMainFramebuffer);
device->SetDepthStencilSurface(g_pMainDepthbuffer);
device->Clear(0, NULL, D3DCLEAR_TARGET|D3DCLEAR_ZBUFFER|D3DCLEAR_STENCIL, 0x0, 1.0f, 0);
D3DXHANDLE shader = g_pParticleRenderFX->GetTechniqueByName("RenderParticle");
D3DXHANDLE positiontex_var = g_pParticleRenderFX->GetParameterByName(NULL, "PositionTex");
D3DXHANDLE velocitytex_var = g_pParticleRenderFX->GetParameterByName(NULL, "VelocityTex");
D3DXHANDLE wvp_matrix_var = g_pParticleRenderFX->GetParameterByName(NULL, "wvp_matrix");
D3DXHANDLE tan_fov_var = g_pParticleRenderFX->GetParameterByName(NULL, "fTanW");
D3DXHANDLE screensize_var = g_pParticleRenderFX->GetParameterByName(NULL, "ScreenSize");
D3DXHANDLE diffusetex_var = g_pParticleRenderFX->GetParameterByName(NULL, "DiffuseTex");
g_pParticleRenderFX->SetTechnique(shader);
g_pParticleRenderFX->SetTexture(positiontex_var, g_pTextures[TEX_POSITION1]);
g_pParticleRenderFX->SetTexture(velocitytex_var, g_pTextures[TEX_VELOCITY1]);
g_pParticleRenderFX->SetMatrix(wvp_matrix_var, (D3DXMATRIX*)&wvp_matrix);
g_pParticleRenderFX->SetVector(screensize_var, (D3DXVECTOR4*)&ScreenSize);
g_pParticleRenderFX->SetFloat(tan_fov_var, fTanW);
g_pParticleRenderFX->SetTexture(diffusetex_var, g_pParticleTexture);
int num_processed_particles = (g_num_particles / g_texture_width) * g_texture_width;
if ( num_processed_particles )
{
device->SetFVF(D3DFVF_TEX1);
g_pParticleRenderFX->Begin(NULL,0);
g_pParticleRenderFX->BeginPass(0);
//device->SetRenderState(D3DRS_POINTSPRITEENABLE, TRUE);
device->DrawPrimitiveUP(D3DPT_POINTLIST, num_processed_particles, g_pParticleArray, sizeof(sParticle));
//device->SetRenderState(D3DRS_POINTSPRITEENABLE, FALSE);
g_pParticleRenderFX->EndPass();
g_pParticleRenderFX->End();
}
}
void ExpLuminance(LPDIRECT3DSURFACE9 pSurace, LPDIRECT3DTEXTURE9 pTexture, sImageInfo *pInfo)
{
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
device->SetRenderTarget(0, pSurace);
D3DXHANDLE shader = g_pExposureEffect->GetTechniqueByName("ExpLuminance");
D3DXHANDLE image_var = g_pExposureEffect->GetParameterByName(NULL, "Image");
g_pExposureEffect->SetTechnique(shader);
g_pExposureEffect->SetTexture(image_var, pTexture);
g_pExposureEffect->Begin(NULL, 0);
g_pExposureEffect->BeginPass(0);
DrawFullScreenQuad(pInfo);
g_pExposureEffect->EndPass();
g_pExposureEffect->End();
}
static void RenderWater(void)
{
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
D3DXHANDLE shader = g_pWaterEffect->GetTechniqueByName("Water");
D3DXHANDLE normalmap_var = g_pWaterEffect->GetParameterByName(NULL, "NormalmapTex");
D3DXHANDLE watermap_var = g_pWaterEffect->GetParameterByName(NULL, "WaterTex");
D3DXHANDLE texcoordscale_var = g_pWaterEffect->GetParameterByName(NULL, "fTexcoordScale");
g_pWaterEffect->SetTechnique(shader);
g_pWaterEffect->SetTexture(normalmap_var, g_pTextures[TEX_NORMAL]);
g_pWaterEffect->SetTexture(watermap_var, g_pWaterTexture);
g_pWaterEffect->SetFloat(texcoordscale_var, 0.2f);
g_pWaterEffect->Begin(NULL,0);
g_pWaterEffect->BeginPass(0);
GutDrawFullScreenQuad_DX9(&g_ImageInfo);
g_pWaterEffect->EndPass();
g_pWaterEffect->End();
}
static void HeightmapToNormal(void)
{
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
device->SetRenderTarget(0, g_pSurfaces[TEX_NORMAL]);
device->SetDepthStencilSurface(NULL);
D3DXHANDLE shader = g_pWaterEffect->GetTechniqueByName("ConvertNormal");
D3DXHANDLE heightmap_current_var = g_pWaterEffect->GetParameterByName(NULL, "heightmap_current");
D3DXHANDLE normalscale_var = g_pWaterEffect->GetParameterByName(NULL, "fNormalScale");
g_pWaterEffect->SetTechnique(shader);
g_pWaterEffect->SetTexture(heightmap_current_var, g_pTextures[TEX_HEIGHT2]);
g_pWaterEffect->SetFloat(normalscale_var, 1.0f);
g_pWaterEffect->Begin(NULL,0);
g_pWaterEffect->BeginPass(0);
GutDrawFullScreenQuad_DX9(&g_ImageInfo);
g_pWaterEffect->EndPass();
g_pWaterEffect->End();
}
void DrawImage(LPDIRECT3DTEXTURE9 pSource, float x0, float y0, float w, float h, sImageInfo *pInfo, bool bRedOnly = false)
{
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
D3DXHANDLE shader = g_pPostEffect->GetTechniqueByName(bRedOnly ? "DrawImageRedChannel" : "DrawImage");
D3DXHANDLE pTextureVar = g_pPostEffect->GetParameterByName(NULL, "Image");
g_pPostEffect->SetTechnique(shader);
g_pPostEffect->SetTexture(pTextureVar, pSource);
// 設定頂點資料格式
device->SetFVF(D3DFVF_XYZ|D3DFVF_TEX1);
g_pPostEffect->Begin(NULL, 0);
g_pPostEffect->BeginPass(0);
GutDrawScreenQuad_DX9(x0, y0, w, h, pInfo);
g_pPostEffect->EndPass();
g_pPostEffect->End();
}
void ExpLuminance(void)
{
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
device->SetRenderTarget(0, g_pFrameSurface[LUMINANCE_TEMP]);
D3DXHANDLE shader = g_pExposureEffect->GetTechniqueByName("ExpLuminance");
D3DXHANDLE image_var = g_pExposureEffect->GetParameterByName(NULL, "Image");
g_pExposureEffect->SetTechnique(shader);
g_pExposureEffect->SetTexture(image_var, g_pFrameBuffer[LUMINANCE_CURRENT]);
g_pExposureEffect->Begin(NULL, 0);
g_pExposureEffect->BeginPass(0);
DrawFullScreenQuad(&g_Image1x1);
g_pExposureEffect->EndPass();
g_pExposureEffect->End();
SwapRenderTarget(LUMINANCE_TEMP, LUMINANCE_CURRENT);
}
void AdaptiveLuminance(void)
{
static int count = 0;
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
if ( count )
{
device->SetRenderTarget(0, g_pFrameSurface[LUMINANCE_TEMP]);
D3DXHANDLE shader = g_pExposureEffect->GetTechniqueByName("AdaptiveLuminance");
g_pExposureEffect->SetTechnique(shader);
Vector4 vSpeed(0.03f);
D3DXHANDLE speed_var = g_pExposureEffect->GetParameterByName(NULL, "vAdaptiveSpeed");
D3DXHANDLE image0_var = g_pExposureEffect->GetParameterByName(NULL, "Image");
D3DXHANDLE image1_var = g_pExposureEffect->GetParameterByName(NULL, "Image2");
g_pExposureEffect->SetVector(speed_var, (D3DXVECTOR4*)&vSpeed);
g_pExposureEffect->SetTexture(image0_var, g_pFrameBuffer[LUMINANCE_PREVIOUS]);
g_pExposureEffect->SetTexture(image1_var, g_pFrameBuffer[LUMINANCE_CURRENT]);
g_pExposureEffect->Begin(NULL, 0);
g_pExposureEffect->BeginPass(0);
DrawFullScreenQuad(&g_Image1x1);
g_pExposureEffect->EndPass();
g_pExposureEffect->End();
}
else
{
device->StretchRect(g_pFrameSurface[LUMINANCE_CURRENT], NULL, g_pFrameSurface[LUMINANCE_TEMP], NULL, D3DTEXF_POINT);
}
// copy
//device->StretchRect(g_pFrameSurface[LUMINANCE_TEMP], NULL, g_pFrameSurface[LUMINANCE_PREVIOUS], NULL, D3DTEXF_POINT);
SwapRenderTarget(LUMINANCE_TEMP, LUMINANCE_PREVIOUS);
count++;
}
void DrawImage(LPDIRECT3DTEXTURE9 pSource, sImageInfo *pInfo)
{
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
// 計算貼圖像素的貼圖座標間距
int w = pInfo->m_iWidth;
int h = pInfo->m_iHeight;
float fTexelW = 1.0f/(float)w;
float fTexelH = 1.0f/(float)h;
// Direct3D9會偏移半個像素, 從貼圖座標來把它修正回來
Vector4 vTexoffset(fTexelW*0.5f, fTexelH*0.5f, 0.0f, 1.0f);
Vertex_VT quad[4];
memcpy(quad, g_FullScreenQuad, sizeof(quad));
for ( int i=0; i<4; i++ )
{
quad[i].m_Texcoord[0] += vTexoffset[0];
quad[i].m_Texcoord[1] += vTexoffset[1];
}
D3DXHANDLE shader = g_pEffect->GetTechniqueByName("DrawImage");
D3DXHANDLE pTextureVar = g_pEffect->GetParameterByName(NULL, "Image");
g_pEffect->SetTechnique(shader);
g_pEffect->SetTexture(pTextureVar, pSource);
// 設定頂點資料格式
device->SetFVF(D3DFVF_XYZ|D3DFVF_TEX1);
g_pEffect->Begin(NULL, 0);
g_pEffect->BeginPass(0);
device->DrawPrimitiveUP(D3DPT_TRIANGLESTRIP, 2, quad, sizeof(Vertex_VT));
g_pEffect->EndPass();
g_pEffect->End();
}
void RenderFrameDX9(void)
{
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
device->BeginScene();
device->Clear(0, NULL, D3DCLEAR_TARGET|D3DCLEAR_ZBUFFER|D3DCLEAR_STENCIL, 0x0, 1.0f, 0);
Matrix4x4 view_matrix = g_Control.GetViewMatrix();
Matrix4x4 world_matrix = g_Control.GetObjectMatrix();
Matrix4x4 wv_matrix = world_matrix * view_matrix;
Matrix4x4 wvp_matrix = wv_matrix * g_proj_matrix;
DrawImage(g_pTexture, &g_ImageInfo);
D3DXHANDLE shader = g_pRefractionFX->GetTechniqueByName("Refraction");
D3DXHANDLE texture = g_pRefractionFX->GetParameterByName(NULL, "BackgroundImage");
D3DXHANDLE wv_matrix_h = g_pRefractionFX->GetParameterByName(NULL, "wv_matrix");
D3DXHANDLE wvp_matrix_h = g_pRefractionFX->GetParameterByName(NULL, "wvp_matrix");
D3DXHANDLE objectcolor_h = g_pRefractionFX->GetParameterByName(NULL, "object_color");
g_pRefractionFX->SetTechnique(shader);
g_pRefractionFX->SetTexture(texture, g_pTexture);
g_pRefractionFX->SetMatrix(wv_matrix_h, (D3DXMATRIX *)&wv_matrix);
g_pRefractionFX->SetMatrix(wvp_matrix_h, (D3DXMATRIX *)&wvp_matrix);
g_pRefractionFX->SetVector(objectcolor_h, (D3DXVECTOR4 *)&g_vObjectColor);
g_pRefractionFX->Begin(NULL, 0);
g_pRefractionFX->BeginPass(0);
g_Model_DX9.Render(0);
g_pRefractionFX->EndPass();
g_pRefractionFX->End();
device->EndScene();
device->Present( NULL, NULL, NULL, NULL );
}
static void ParticleSimulation(void)
{
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
device->SetRenderTarget(0, g_pSurfaces[TEX_POSITION1]);
device->SetRenderTarget(1, g_pSurfaces[TEX_VELOCITY1]);
device->SetDepthStencilSurface(NULL);
RECT rect;
rect.left = 0;
rect.right = g_texture_width;
rect.top = 0;
rect.bottom = g_num_particles / g_texture_width;
if ( rect.bottom==0 )
return;
device->SetScissorRect(&rect);
device->SetRenderState(D3DRS_SCISSORTESTENABLE, TRUE);
D3DXHANDLE shader = g_pParticleFX->GetTechniqueByName("Simulate");
D3DXHANDLE positiontex_var = g_pParticleFX->GetParameterByName(NULL, "PositionTex");
D3DXHANDLE velocitytex_var = g_pParticleFX->GetParameterByName(NULL, "VelocityTex");
D3DXHANDLE noisetex_var = g_pParticleFX->GetParameterByName(NULL, "NoiseTex");
D3DXHANDLE force_var = g_pParticleFX->GetParameterByName(NULL, "Force");
D3DXHANDLE time_var = g_pParticleFX->GetParameterByName(NULL, "fTimeAdvance");
D3DXHANDLE rand_var = g_pParticleFX->GetParameterByName(NULL, "Rand");
D3DXHANDLE tan_var = g_pParticleFX->GetParameterByName(NULL, "fTan");
D3DXHANDLE liferange_var = g_pParticleFX->GetParameterByName(NULL, "LifeRange");
D3DXHANDLE speedrange_var = g_pParticleFX->GetParameterByName(NULL, "SpeedRange");
D3DXHANDLE sizerange_var = g_pParticleFX->GetParameterByName(NULL, "SizeRange");
Vector4 vForce = g_vForce * g_fTimeAdvance;
Vector4 vRand[3];
Vector4 vLifeRange(1.0f, 2.0f, 0.0f, 0.0f);
Vector4 vSpeedRange(1.0f, 2.0f, 0.0f, 0.0f);
Vector4 vSizeRange(0.01f, 0.02f, 0.0f, 0.0f);
for ( int i=0; i<3; i++ )
{
vRand[i][0] = float(rand()%1024)/1024.0f;
vRand[i][1] = float(rand()%1024)/1024.0f;
vRand[i][2] = float(rand()%1024)/1024.0f;
vRand[i][3] = float(rand()%1024)/1024.0f;
}
g_pParticleFX->SetTechnique(shader);
g_pParticleFX->SetTexture(positiontex_var, g_pTextures[TEX_POSITION0]);
g_pParticleFX->SetTexture(velocitytex_var, g_pTextures[TEX_VELOCITY0]);
g_pParticleFX->SetTexture(noisetex_var, g_pNoiseTexture);
g_pParticleFX->SetVector(force_var, (D3DXVECTOR4*)&vForce);
g_pParticleFX->SetVectorArray(rand_var, (D3DXVECTOR4*)&vRand, 3);
g_pParticleFX->SetVector(liferange_var, (D3DXVECTOR4*)&vLifeRange);
g_pParticleFX->SetVector(speedrange_var, (D3DXVECTOR4*)&vSpeedRange);
g_pParticleFX->SetVector(sizerange_var, (D3DXVECTOR4*)&vSizeRange);
g_pParticleFX->SetFloat(time_var, g_fTimeAdvance);
g_pParticleFX->SetFloat(tan_var, FastMath::Tan(FastMath::DegToRad(g_fEmitTheta)));
g_pParticleFX->Begin(NULL,0);
g_pParticleFX->BeginPass(0);
GutDrawFullScreenQuad_DX9(&g_ImageInfo);
g_pParticleFX->EndPass();
g_pParticleFX->End();
device->SetRenderTarget(1, NULL);
device->SetRenderState(D3DRS_SCISSORTESTENABLE, FALSE);
}
void AverageLuminance(LPDIRECT3DTEXTURE9 pSource)
{
LPDIRECT3DDEVICE9 device = GutGetGraphicsDeviceDX9();
D3DXHANDLE shader = g_pExposureEffect->GetTechniqueByName("Average16Samples");
g_pExposureEffect->SetTechnique(shader);
D3DXHANDLE texoffset_var = g_pExposureEffect->GetParameterByName(NULL, "vTexOffset");
D3DXHANDLE image_var = g_pExposureEffect->GetParameterByName(NULL, "Image");
float fTexX, fTexY;
Vector4 vTexOffset_256x256[16];
Vector4 vTexOffset_64x64[16];
Vector4 vTexOffset_16x16[16];
Vector4 vTexOffset_4x4[16];
int index = 0;
index=0;
fTexX = 1.0f/256.0f;
fTexY = 1.0f/256.0f;
for ( int y=0; y<4; y++ )
{
for ( int x=0; x<4; x++ )
{
vTexOffset_256x256[index].Set(x*fTexX, y*fTexY, 0.0f, 0.0f);
index++;
}
}
index=0;
fTexX = 1.0f/64.0f;
fTexY = 1.0f/64.0f;
for ( int y=0; y<4; y++ )
{
for ( int x=0; x<4; x++ )
{
vTexOffset_64x64[index].Set(x*fTexX, y*fTexY, 0.0f, 0.0f);
index++;
}
}
index=0;
fTexX = 1.0f/16.0f;
fTexY = 1.0f/16.0f;
for ( int y=0; y<4; y++ )
{
for ( int x=0; x<4; x++ )
{
vTexOffset_16x16[index].Set(x*fTexX, y*fTexY, 0.0f, 0.0f);
index++;
}
}
index=0;
fTexX = 1.0f/4.0f;
fTexY = 1.0f/4.0f;
for ( int y=0; y<4; y++ )
{
for ( int x=0; x<4; x++ )
{
vTexOffset_4x4[index].Set(x*fTexX, y*fTexY, 0.0f, 0.0f);
index++;
}
}
// 256x256 -> 64x164
{
device->SetRenderTarget(0, g_pFrameSurface[DOWNSAMPLED_64x64]);
device->SetDepthStencilSurface(NULL);
g_pExposureEffect->SetVectorArray(texoffset_var, (D3DXVECTOR4*)vTexOffset_256x256, 16);
g_pExposureEffect->SetTexture(image_var, pSource);
g_pExposureEffect->Begin(NULL, 0);
g_pExposureEffect->BeginPass(0);
DrawFullScreenQuad(&g_Image64x64);
g_pExposureEffect->EndPass();
g_pExposureEffect->End();
}
// 64x64 -> 16x16
{
device->SetRenderTarget(0, g_pFrameSurface[DOWNSAMPLED_16x16]);
device->SetDepthStencilSurface(NULL);
g_pExposureEffect->SetVectorArray(texoffset_var, (D3DXVECTOR4*)vTexOffset_64x64, 16);
g_pExposureEffect->SetTexture(image_var, pSource);
g_pExposureEffect->Begin(NULL, 0);
g_pExposureEffect->BeginPass(0);
DrawFullScreenQuad(&g_Image64x64);
g_pExposureEffect->EndPass();
g_pExposureEffect->End();
}
// 16x16 -> 4x4
{
device->SetRenderTarget(0, g_pFrameSurface[DOWNSAMPLED_4x4]);
g_pExposureEffect->SetVectorArray(texoffset_var, (D3DXVECTOR4*)vTexOffset_16x16, 16);
g_pExposureEffect->SetTexture(image_var, g_pFrameBuffer[DOWNSAMPLED_16x16]);
g_pExposureEffect->Begin(NULL, 0);
g_pExposureEffect->BeginPass(0);
DrawFullScreenQuad(&g_Image16x16);
g_pExposureEffect->EndPass();
g_pExposureEffect->End();
}
// 4x4 -> 1x1
{
device->SetRenderTarget(0, g_pFrameSurface[LUMINANCE_CURRENT]);
g_pExposureEffect->SetVectorArray(texoffset_var, (D3DXVECTOR4*)vTexOffset_4x4, 16);
g_pExposureEffect->SetTexture(image_var, g_pFrameBuffer[DOWNSAMPLED_4x4]);
g_pExposureEffect->Begin(NULL, 0);
g_pExposureEffect->BeginPass(0);
DrawFullScreenQuad(&g_Image4x4);
g_pExposureEffect->EndPass();
g_pExposureEffect->End();
}
}
