void eDeferredRenderer::_showGeometryBuffer(eTexture2d *target, const eRect &area) const
{
const eInt w = area.getWidth();
const eInt h = area.getHeight();
eGfx->freshRenderState().targets[0] = target;
renderQuad(eRect( 0, h/3, w/2, h), area.getSize(), m_rtShadow); // top left
renderQuad(eRect(w/2, h/3, w, h), area.getSize(), m_texDistMap); // top right
renderQuad(eRect( 0, h/3, w/2, 2*h/3), area.getSize(), m_rtSpecular); // middle left
renderQuad(eRect(w/2, h/3, w, 2*h/3), area.getSize(), m_rtDiffuse); // middle right
renderQuad(eRect( 0, 0, w/2, h/3), area.getSize(), m_rtNormals); // bottom left
renderQuad(eRect(w/2, 0, w, h/3), area.getSize(), m_rtPosition); // bottom right
}
void eDeferredRenderer::_renderAmbientPass(eTexture2d *target, eTexture2d *depthTarget, const eScene &scene, const eRect &area)
{
// calculate the ambient color
eColor ambient;
for (eU32 i=0; i<scene.getLightCount(); i++)
ambient += scene.getLight(i).getAmbient();
// render the ambient light
static eConstBuffer<eVector4, eST_PS> cb;
cb.data = ambient;
eRenderState &rs = eGfx->freshRenderState();
rs.targets[0] = target;
rs.depthTarget = depthTarget;
rs.ps = m_psDefAmbient;
rs.constBufs[eCBI_PASS_AMBIENT] = &cb;
rs.textures[0] = m_rtDiffuse;
rs.textures[3] = m_rtPosition;
rs.textures[4] = m_rtEnvironment;
rs.texFlags[0] = eTMF_CLAMP|eTMF_NEAREST;
rs.texFlags[3] = eTMF_CLAMP|eTMF_NEAREST;
rs.texFlags[4] = eTMF_CLAMP|eTMF_NEAREST;
eGfx->clear(eCM_COLOR, eCOL_YELLOW);
renderQuad(area, area.getSize(), nullptr);
}
void eDeferredRenderer::_renderLightPass(eTexture2d *target, eTexture2d *depthTarget, const eScene &scene, const eCamera &cam, const eRect &area)
{
for (eU32 i=0; i<scene.getLightCount(); i++)
{
const eLight &light = scene.getLight(i);
if (light.activateScissor(area.getSize(), cam))
{
// create shadow map for light
#ifndef eCFG_NO_ENGINE_DEFERRED_SHADOWS
_renderLightDistance(scene, light);
_renderShadowMap(cam, light, depthTarget);
#endif
// perform deferred lighting+shadowing
eRenderState &rs = eGfx->freshRenderState();
rs.targets[0] = target;
rs.depthTarget = depthTarget;
rs.textures[0] = m_rtDiffuse;
rs.textures[1] = m_rtNormals;
rs.textures[2] = m_rtSpecular;
rs.textures[3] = m_rtPosition;
rs.textures[4] = m_rtShadow;
rs.texFlags[0] = eTMF_CLAMP|eTMF_NEAREST;
rs.texFlags[1] = eTMF_CLAMP|eTMF_NEAREST;
rs.texFlags[2] = eTMF_CLAMP|eTMF_NEAREST;
rs.texFlags[3] = eTMF_CLAMP|eTMF_NEAREST;
rs.texFlags[4] = eTMF_BILINEAR;
rs.blending = eTRUE;
rs.blendSrc = eBM_ONE;
rs.blendDst = eBM_ONE;
rs.ps = m_psDefLight;
rs.vs = m_vsQuad;
light.activate(cam.getViewMatrix());
renderQuad(area, area.getSize());
}
}
}
void eDeferredRenderer::_renderAlphaLightPass(eTexture2d *target, eTexture2d *depthTarget, const eScene &scene, const eCamera &cam, const eRect &area)
{
eRenderState &rs = eGfx->freshRenderState();
rs.targets[0] = target;
rs.depthTarget = depthTarget;
rs.viewport.set(0, 0, m_rtNormals->width, m_rtNormals->height);
for (eU32 i=0; i<scene.getLightCount(); i++)
{
const eLight &light = scene.getLight(i);
if (light.activateScissor(area.getSize(), cam))
{
light.activate(cam.getViewMatrix());
m_allJobs.render(cam, eRJW_ALPHA_ON|eRJW_LIGHTED_ON|eRJW_SHADOWS_BOTH);
}
}
}