source: GTP/branches/IllumWPdeliver2008dec/IlluminationWP/demos/Standalone/PathMap [DirectX]/PRMRenderStrategy.cpp @ 3255

#include "dxstdafx.h"
#include ".\prmrenderstrategy.h"

PRMRenderStrategy::PRMRenderStrategy(PathMapEffect* pathMapEffect, Radion* radion)
:RenderStrategy(pathMapEffect)
{
        this->radion = radion;
}

void PRMRenderStrategy::applyTargets()
{
}

void PRMRenderStrategy::applyRenderState()
{
        LPDIRECT3DDEVICE9 device = pathMapEffect->device;
        // blend-add contribution of virtual light source to PRM
        device->SetRenderTarget(0, prmSurface);
        device->SetDepthStencilSurface(NULL);
        device->SetViewport(&vp);
        device->SetRenderState(D3DRS_CULLMODE,  D3DCULL_NONE);
        device->SetRenderState(D3DRS_ALPHABLENDENABLE,  true);
        device->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_ONE);
        device->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_ONE);
        device->SetRenderState(D3DRS_BLENDOP, D3DBLENDOP_ADD);
        device->SetRenderState(D3DRS_ZENABLE, D3DZB_FALSE);

}

void PRMRenderStrategy::applyTechnique()
{
        LPD3DXEFFECT effect = pathMapEffect->effect;

        effect->SetTechnique("BushToAtlas");
        effect->SetFloatArray("lightPos", (float*)&bushRadions[ir].position, 3);
        effect->SetFloatArray("lightDir", (float*)&bushRadions[ir].normal, 3);
        effect->SetTexture("depthMap", pathMapEffect->depthMapTexture);

        static float opttme[9] = {0.5f, 0.0f, 0.0f,
                                                        0.0f, -0.5f, 0.0f,
                                                        0.5f + (0.5f / DEPTHMAPRES), 0.5f + (0.5f / DEPTHMAPRES), 1.0f};
        effect->SetFloatArray("occProjToTexMatrix", opttme, 9);
        effect->SetMatrix("occWorldToProjMatrix", &(*radionCamera.GetViewMatrix() * *radionCamera.GetProjMatrix()));
}

void PRMRenderStrategy::applyTransforms(Entity* entity)
{
}

void PRMRenderStrategy::applyTextures(SubEntity* subEntity)
{


        float acs = 4096.0f / nRadions;
        if(acs <= 0.25f || acs > 1000.0f)
                bool kamugaz = true;
        effect->SetFloat("alphaCounterStep", acs);

        Vector bb0 = this->rayTraceEntity->bbox.minPoint;
        Vector bb1 = this->rayTraceEntity->bbox.maxPoint;
        //effect->SetFloat("cutNearness2", (bb1 - bb0).norm2() / 200.0f);
        float nne = 5.0f / bushRadions[ir].probability;
        float onne = (bb1 - bb0).norm2() / 200.0f;
        effect->SetFloat("cutNearness2", nne);
        //effect->SetFloat("cutNearness2", 0.0f);
        
        //set global params


        effect->SetMatrix("modelToWorldMatrix", &(this->modelWorldTransform));
        effect->SetMatrix("inverseTransposedModelToWorldMatrix", &(this->inverseTransposedModelWorldTransform));
        Vector scaledPower = bushRadions[ir].radiance * scaleFactor;
        hr=effect->SetFloatArray("lightPower", (float*)&scaledPower, 3);
}


void PRMRenderStrategy::resetRenderState()
{
        LPDIRECT3DDEVICE9 device = pathMapEffect->device;
}