void MFixedRenderer::enableFog(MOCamera * camera)
{
MRenderingContext * render = MEngine::getInstance()->getRenderingContext();
float fogMin = camera->getClippingFar()*0.9999f;
if(camera->hasFog())
{
render->enableFog();
float camFogMin = camera->getClippingFar() - camera->getFogDistance();
if(camFogMin < fogMin)
fogMin = camFogMin;
}
else {
render->disableFog();
}
render->setFogColor(camera->getClearColor());
render->setFogDistance(fogMin, camera->getClippingFar());
}
void MFixedRenderer::drawScene(MScene * scene, MOCamera * camera)
{
M_PROFILE_SCOPE(MFixedRenderer::drawScene);
struct MEntityLight
{
MBox3d lightBox;
MOLight * light;
};
struct MSubMeshPass
{
unsigned int subMeshId;
unsigned int lightsNumber;
MObject3d * object;
MOLight * lights[4];
};
// sub objects
#define MAX_TRANSP_SUBOBJ 4096
static int transpList[MAX_TRANSP_SUBOBJ];
static float transpZList[MAX_TRANSP_SUBOBJ];
static MSubMeshPass transpSubObjs[MAX_TRANSP_SUBOBJ];
// lights list
#define MAX_ENTITY_LIGHTS 256
static int entityLightsList[MAX_ENTITY_LIGHTS];
static float entityLightsZList[MAX_ENTITY_LIGHTS];
static MEntityLight entityLights[MAX_ENTITY_LIGHTS];
// get render
MRenderingContext * render = MEngine::getInstance()->getRenderingContext();
render->enableLighting();
render->enableBlending();
// make frustum
MFrustum * frustum = camera->getFrustum();
frustum->makeVolume(camera);
// update visibility
updateVisibility(scene, camera);
// fog
enableFog(camera);
// camera
MVector3 cameraPos = camera->getTransformedPosition();
// transp sub obj number
unsigned int transpSubObsNumber = 0;
// lights
unsigned int l;
unsigned int lSize = scene->getLightsNumber();
// entities
unsigned int i;
unsigned int eSize = scene->getEntitiesNumber();
for(i=0; i<eSize; i++)
{
// get entity
MOEntity * entity = scene->getEntityByIndex(i);
MMesh * mesh = entity->getMesh();
if(! entity->isActive())
continue;
if(! entity->isVisible())
{
if(mesh)
{
MArmature * armature = mesh->getArmature();
MArmatureAnim * armatureAnim = mesh->getArmatureAnim();
if(armature)
{
// animate armature
if(armatureAnim)
animateArmature(
mesh->getArmature(),
mesh->getArmatureAnim(),
entity->getCurrentFrame()
);
// TODO : optimize and add a tag to desactivate it
updateSkinning(mesh, armature);
(*entity->getBoundingBox()) = (*mesh->getBoundingBox());
}
}
continue;
}
// draw mesh
if(mesh)
{
MVector3 scale = entity->getTransformedScale();
MBox3d * entityBox = entity->getBoundingBox();
float minScale = scale.x;
minScale = MIN(minScale, scale.y);
minScale = MIN(minScale, scale.z);
minScale = 1.0f / minScale;
unsigned int entityLightsNumber = 0;
for(l=0; l<lSize; l++)
{
// get entity
MOLight * light = scene->getLightByIndex(l);
if(! light->isActive())
continue;
if(! light->isVisible())
continue;
// light box
MVector3 lightPos = light->getTransformedPosition();
MVector3 localPos = entity->getInversePosition(lightPos);
float localRadius = light->getRadius() * minScale;
MBox3d lightBox(
MVector3(localPos - localRadius),
MVector3(localPos + localRadius)
);
if(! entityBox->isInCollisionWith(&lightBox))
continue;
MEntityLight * entityLight = &entityLights[entityLightsNumber];
entityLight->lightBox = lightBox;
entityLight->light = light;
entityLightsNumber++;
if(entityLightsNumber == MAX_ENTITY_LIGHTS)
break;
}
// animate armature
if(mesh->getArmature() && mesh->getArmatureAnim())
animateArmature(
mesh->getArmature(),
mesh->getArmatureAnim(),
entity->getCurrentFrame()
);
// animate textures
if(mesh->getTexturesAnim())
animateTextures(mesh, mesh->getTexturesAnim(), entity->getCurrentFrame());
// animate materials
if(mesh->getMaterialsAnim())
animateMaterials(mesh, mesh->getMaterialsAnim(), entity->getCurrentFrame());
unsigned int s;
unsigned int sSize = mesh->getSubMeshsNumber();
for(s=0; s<sSize; s++)
{
MSubMesh * subMesh = &mesh->getSubMeshs()[s];
MBox3d * box = subMesh->getBoundingBox();
// check if submesh visible
if(sSize > 1)
{
MVector3 * min = box->getMin();
MVector3 * max = box->getMax();
MVector3 points[8] = {
entity->getTransformedVector(MVector3(min->x, min->y, min->z)),
entity->getTransformedVector(MVector3(min->x, max->y, min->z)),
entity->getTransformedVector(MVector3(max->x, max->y, min->z)),
entity->getTransformedVector(MVector3(max->x, min->y, min->z)),
entity->getTransformedVector(MVector3(min->x, min->y, max->z)),
entity->getTransformedVector(MVector3(min->x, max->y, max->z)),
entity->getTransformedVector(MVector3(max->x, max->y, max->z)),
entity->getTransformedVector(MVector3(max->x, min->y, max->z))
};
if(! frustum->isVolumePointsVisible(points, 8))
continue;
}
// subMesh center
MVector3 center = (*box->getMin()) + ((*box->getMax()) - (*box->getMin()))*0.5f;
center = entity->getTransformedVector(center);
// sort entity lights
unsigned int lightsNumber = 0;
for(l=0; l<entityLightsNumber; l++)
{
MEntityLight * entityLight = &entityLights[l];
if(! box->isInCollisionWith(&entityLight->lightBox))
continue;
MOLight * light = entityLight->light;
float z = (center - light->getTransformedPosition()).getLength();
entityLightsList[lightsNumber] = l;
entityLightsZList[l] = (1.0f/z)*light->getRadius();
lightsNumber++;
}
if(lightsNumber > 1)
sortFloatList(entityLightsList, entityLightsZList, 0, (int)lightsNumber-1);
// local lights
if(lightsNumber > 4)
lightsNumber = 4;
for(l=0; l<lightsNumber; l++)
{
MEntityLight * entityLight = &entityLights[entityLightsList[l]];
MOLight * light = entityLight->light;
// attenuation
float quadraticAttenuation = (8.0f / light->getRadius());
quadraticAttenuation = (quadraticAttenuation*quadraticAttenuation)*light->getIntensity();
// color
MVector3 color = light->getFinalColor();
// set light
render->enableLight(l);
render->setLightPosition(l, light->getTransformedPosition());
render->setLightDiffuse(l, MVector4(color));
render->setLightSpecular(l, MVector4(color));
render->setLightAmbient(l, MVector3(0, 0, 0));
render->setLightAttenuation(l, 1, 0, quadraticAttenuation);
// spot
render->setLightSpotAngle(l, light->getSpotAngle());
if(light->getSpotAngle() < 90){
render->setLightSpotDirection(l, light->getRotatedVector(MVector3(0, 0, -1)).getNormalized());
render->setLightSpotExponent(l, light->getSpotExponent());
}
else {
render->setLightSpotExponent(l, 0.0f);
}
}
for(l=lightsNumber; l<4; l++){
render->disableLight(l);
}
render->pushMatrix();
render->multMatrix(entity->getMatrix());
// draw opaques
drawOpaques(subMesh, mesh->getArmature());
if(subMesh->hasTransparency())
{
if(transpSubObsNumber < MAX_TRANSP_SUBOBJ)
{
// transparent subMesh pass
MSubMeshPass * subMeshPass = &transpSubObjs[transpSubObsNumber];
// lights
subMeshPass->lightsNumber = lightsNumber;
for(l=0; l<lightsNumber; l++)
subMeshPass->lights[l] = entityLights[entityLightsList[l]].light;
// z distance to camera
float z = getDistanceToCam(camera, center);
// set values
transpList[transpSubObsNumber] = transpSubObsNumber;
transpZList[transpSubObsNumber] = z;
subMeshPass->subMeshId = s;
subMeshPass->object = entity;
transpSubObsNumber++;
}
}
render->popMatrix();
}
mesh->updateBoundingBox();
(*entity->getBoundingBox()) = (*mesh->getBoundingBox());
}
}
// texts
unsigned int tSize = scene->getTextsNumber();
for(i=0; i<tSize; i++)
{
MOText * text = scene->getTextByIndex(i);
if(text->isActive() && text->isVisible())
{
// transparent pass
MSubMeshPass * subMeshPass = &transpSubObjs[transpSubObsNumber];
// center
MBox3d * box = text->getBoundingBox();
MVector3 center = (*box->getMin()) + ((*box->getMax()) - (*box->getMin()))*0.5f;
center = text->getTransformedVector(center);
// z distance to camera
float z = getDistanceToCam(camera, center);
// set values
transpList[transpSubObsNumber] = transpSubObsNumber;
transpZList[transpSubObsNumber] = z;
subMeshPass->object = text;
transpSubObsNumber++;
}
}
// sort transparent list
if(transpSubObsNumber > 1)
sortFloatList(transpList, transpZList, 0, (int)transpSubObsNumber-1);
// draw transparents
for(i=0; i<transpSubObsNumber; i++)
{
MSubMeshPass * subMeshPass = &transpSubObjs[transpList[i]];
MObject3d * object = subMeshPass->object;
// objects
switch(object->getType())
{
case M_OBJECT3D_ENTITY:
{
MOEntity * entity = (MOEntity *)object;
unsigned int subMeshId = subMeshPass->subMeshId;
MMesh * mesh = entity->getMesh();
MSubMesh * subMesh = &mesh->getSubMeshs()[subMeshId];
// animate armature
if(mesh->getArmature() && mesh->getArmatureAnim())
animateArmature(
mesh->getArmature(),
mesh->getArmatureAnim(),
entity->getCurrentFrame()
);
// animate textures
if(mesh->getTexturesAnim())
animateTextures(mesh, mesh->getTexturesAnim(), entity->getCurrentFrame());
// animate materials
if(mesh->getMaterialsAnim())
animateMaterials(mesh, mesh->getMaterialsAnim(), entity->getCurrentFrame());
// lights
for(l=0; l<subMeshPass->lightsNumber; l++)
{
MOLight * light = subMeshPass->lights[l];
// attenuation
float quadraticAttenuation = (8.0f / light->getRadius());
quadraticAttenuation = (quadraticAttenuation*quadraticAttenuation)*light->getIntensity();
// color
MVector3 color = light->getFinalColor();
// set light
render->enableLight(l);
render->setLightPosition(l, light->getTransformedPosition());
render->setLightDiffuse(l, MVector4(color));
render->setLightSpecular(l, MVector4(color));
render->setLightAmbient(l, MVector3(0, 0, 0));
render->setLightAttenuation(l, 1, 0, quadraticAttenuation);
// spot
render->setLightSpotAngle(l, light->getSpotAngle());
if(light->getSpotAngle() < 90){
render->setLightSpotDirection(l, light->getRotatedVector(MVector3(0, 0, -1)).getNormalized());
render->setLightSpotExponent(l, light->getSpotExponent());
}
else {
render->setLightSpotExponent(l, 0.0f);
}
}
for(l=subMeshPass->lightsNumber; l<4; l++){
render->disableLight(l);
}
render->pushMatrix();
render->multMatrix(entity->getMatrix());
drawTransparents(subMesh, mesh->getArmature());
render->popMatrix();
mesh->updateBoundingBox();
(*entity->getBoundingBox()) = (*mesh->getBoundingBox());
}
break;
case M_OBJECT3D_TEXT:
{
MOText * text = (MOText *)object;
render->pushMatrix();
render->multMatrix(text->getMatrix());
drawText(text);
render->popMatrix();
}
break;
}
}
render->disableLighting();
render->disableFog();
}