Rewritted rendersystem
Former-commit-id: 9cbc601413e057047b94b8b872ee2316a86638c4
This commit is contained in:
Lynix
277
src/Nazara/Graphics/ForwardRenderTechnique.cpp
Normal file
277
src/Nazara/Graphics/ForwardRenderTechnique.cpp
Normal file
@@ -0,0 +1,277 @@
|
||||
// Copyright (C) 2013 Jérôme Leclercq
|
||||
// This file is part of the "Nazara Engine - Graphics module"
|
||||
// For conditions of distribution and use, see copyright notice in Config.hpp
|
||||
|
||||
#include <Nazara/Graphics/ForwardRenderTechnique.hpp>
|
||||
#include <Nazara/Graphics/Background.hpp>
|
||||
#include <Nazara/Graphics/Camera.hpp>
|
||||
#include <Nazara/Graphics/Drawable.hpp>
|
||||
#include <Nazara/Graphics/Light.hpp>
|
||||
#include <Nazara/Renderer/Config.hpp>
|
||||
#include <Nazara/Renderer/Material.hpp>
|
||||
#include <Nazara/Renderer/Renderer.hpp>
|
||||
#include <Nazara/Renderer/ShaderBuilder.hpp>
|
||||
#include <Nazara/Utility/StaticMesh.hpp>
|
||||
#include <Nazara/Graphics/Debug.hpp>
|
||||
|
||||
namespace
|
||||
{
|
||||
struct LightComparator
|
||||
{
|
||||
bool operator()(const NzLight* light1, const NzLight* light2)
|
||||
{
|
||||
return light1->GetPosition().SquaredDistance(pos) < light2->GetPosition().SquaredDistance(pos);
|
||||
}
|
||||
|
||||
NzVector3f pos;
|
||||
};
|
||||
}
|
||||
|
||||
NzForwardRenderTechnique::NzForwardRenderTechnique() :
|
||||
m_maxLightsPerObject(3) // Valeur totalement arbitraire
|
||||
{
|
||||
}
|
||||
|
||||
void NzForwardRenderTechnique::Clear(const NzScene* scene)
|
||||
{
|
||||
NzRenderer::Enable(nzRendererParameter_DepthBuffer, true);
|
||||
NzRenderer::Enable(nzRendererParameter_DepthWrite, true);
|
||||
NzRenderer::Clear(nzRendererClear_Depth);
|
||||
|
||||
NzBackground* background = scene->GetBackground();
|
||||
if (background)
|
||||
background->Draw(scene);
|
||||
}
|
||||
|
||||
void NzForwardRenderTechnique::Draw(const NzScene* scene)
|
||||
{
|
||||
///TODO: Regrouper les activations par méthode
|
||||
LightComparator lightComparator;
|
||||
|
||||
const NzCamera* camera = scene->GetActiveCamera();
|
||||
const NzShader* lastShader = nullptr;
|
||||
|
||||
// Externes à la boucle pour conserver leur valeurs si le shader ne change pas
|
||||
unsigned int lightCount = 0;
|
||||
int lightCountLocation = -1;
|
||||
|
||||
// Rendu des modèles opaques
|
||||
for (auto matIt : m_renderQueue.visibleModels)
|
||||
{
|
||||
NzMaterial* material = matIt.first;
|
||||
|
||||
// On commence par récupérer le shader du matériau
|
||||
const NzShader* shader;
|
||||
if (material->HasCustomShader())
|
||||
shader = material->GetCustomShader();
|
||||
else
|
||||
shader = NzShaderBuilder::Get(material->GetShaderFlags());
|
||||
|
||||
// Les uniformes sont conservées au sein du shader, inutile de les renvoyer tant que le shader reste le même
|
||||
if (shader != lastShader)
|
||||
{
|
||||
// On récupère l'information sur l'éclairage en même temps que la position de l'uniforme "LightCount"
|
||||
lightCountLocation = shader->GetUniformLocation(nzShaderUniform_LightCount);
|
||||
|
||||
NzRenderer::SetShader(shader);
|
||||
|
||||
// Couleur ambiante de la scène
|
||||
shader->SendColor(shader->GetUniformLocation(nzShaderUniform_SceneAmbient), scene->GetAmbientColor());
|
||||
// Position de la caméra
|
||||
shader->SendVector(shader->GetUniformLocation(nzShaderUniform_CameraPosition), camera->GetPosition());
|
||||
|
||||
lightCount = 0;
|
||||
|
||||
// On envoie les lumières directionnelles s'il y a (Les mêmes pour tous)
|
||||
if (lightCountLocation != -1)
|
||||
{
|
||||
for (const NzLight* light : m_renderQueue.directionnalLights)
|
||||
{
|
||||
light->Apply(shader, lightCount++);
|
||||
if (lightCount > NAZARA_RENDERER_SHADER_MAX_LIGHTCOUNT)
|
||||
break; // Prévenons les bêtises des utilisateurs
|
||||
}
|
||||
}
|
||||
lastShader = shader;
|
||||
}
|
||||
|
||||
material->Apply(shader);
|
||||
|
||||
// Meshs squelettiques
|
||||
/*NzForwardRenderQueue::SkeletalMeshContainer& container = matIt.second.first;
|
||||
if (!container.empty())
|
||||
{
|
||||
NzRenderer::SetVertexBuffer(m_skinningBuffer); // Vertex buffer commun
|
||||
for (auto subMeshIt : container)
|
||||
{
|
||||
///TODO
|
||||
}
|
||||
}*/
|
||||
|
||||
// Meshs statiques
|
||||
for (auto subMeshIt : matIt.second.second)
|
||||
{
|
||||
NzStaticMesh* mesh = subMeshIt.first;
|
||||
|
||||
const NzIndexBuffer* indexBuffer = mesh->GetIndexBuffer();
|
||||
const NzVertexBuffer* vertexBuffer = mesh->GetVertexBuffer();
|
||||
|
||||
// Gestion du draw call avant la boucle de rendu
|
||||
std::function<void(nzPrimitiveMode, unsigned int, unsigned int)> drawFunc;
|
||||
unsigned int indexCount;
|
||||
|
||||
if (indexBuffer)
|
||||
{
|
||||
drawFunc = NzRenderer::DrawIndexedPrimitives;
|
||||
indexCount = indexBuffer->GetIndexCount();
|
||||
}
|
||||
else
|
||||
{
|
||||
drawFunc = NzRenderer::DrawPrimitives;
|
||||
indexCount = vertexBuffer->GetVertexCount();
|
||||
}
|
||||
|
||||
NzRenderer::SetIndexBuffer(indexBuffer);
|
||||
NzRenderer::SetVertexBuffer(vertexBuffer);
|
||||
|
||||
for (const NzMatrix4f& matrix : subMeshIt.second)
|
||||
{
|
||||
// Calcul des lumières les plus proches
|
||||
///TODO: LightManager ?
|
||||
if (lightCountLocation != -1)
|
||||
{
|
||||
std::vector<const NzLight*>& visibleLights = m_renderQueue.visibleLights;
|
||||
|
||||
lightComparator.pos = matrix.GetTranslation();
|
||||
std::sort(visibleLights.begin(), visibleLights.end(), lightComparator);
|
||||
|
||||
unsigned int max = std::min(std::min(NAZARA_RENDERER_SHADER_MAX_LIGHTCOUNT - lightCount, m_maxLightsPerObject), static_cast<unsigned int>(visibleLights.size()));
|
||||
for (unsigned int i = 0; i < max; ++i)
|
||||
visibleLights[i]->Apply(shader, lightCount++);
|
||||
|
||||
shader->SendInteger(lightCountLocation, lightCount);
|
||||
}
|
||||
|
||||
NzRenderer::SetMatrix(nzMatrixType_World, matrix);
|
||||
drawFunc(mesh->GetPrimitiveMode(), 0, indexCount);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (const std::pair<unsigned int, bool>& pair : m_renderQueue.visibleTransparentsModels)
|
||||
{
|
||||
// Matériau
|
||||
NzMaterial* material = (pair.second) ?
|
||||
m_renderQueue.transparentStaticModels[pair.first].material :
|
||||
m_renderQueue.transparentSkeletalModels[pair.first].material;
|
||||
|
||||
// On commence par récupérer le shader du matériau
|
||||
const NzShader* shader;
|
||||
if (material->HasCustomShader())
|
||||
shader = material->GetCustomShader();
|
||||
else
|
||||
shader = NzShaderBuilder::Get(material->GetShaderFlags());
|
||||
|
||||
// Les uniformes sont conservées au sein du shader, inutile de les renvoyer tant que le shader reste le même
|
||||
if (shader != lastShader)
|
||||
{
|
||||
// On récupère l'information sur l'éclairage en même temps que la position de l'uniforme "LightCount"
|
||||
lightCountLocation = shader->GetUniformLocation(nzShaderUniform_LightCount);
|
||||
|
||||
NzRenderer::SetShader(shader);
|
||||
|
||||
// Couleur ambiante de la scène
|
||||
shader->SendColor(shader->GetUniformLocation(nzShaderUniform_SceneAmbient), scene->GetAmbientColor());
|
||||
// Position de la caméra
|
||||
shader->SendVector(shader->GetUniformLocation(nzShaderUniform_CameraPosition), camera->GetPosition());
|
||||
|
||||
lightCount = 0;
|
||||
|
||||
// On envoie les lumières directionnelles s'il y a (Les mêmes pour tous)
|
||||
if (lightCountLocation != -1)
|
||||
{
|
||||
for (const NzLight* light : m_renderQueue.directionnalLights)
|
||||
{
|
||||
light->Apply(shader, lightCount++);
|
||||
if (lightCount > NAZARA_RENDERER_SHADER_MAX_LIGHTCOUNT)
|
||||
break; // Prévenons les bêtises des utilisateurs
|
||||
}
|
||||
}
|
||||
lastShader = shader;
|
||||
}
|
||||
|
||||
material->Apply(shader);
|
||||
|
||||
// Mesh
|
||||
if (pair.second)
|
||||
{
|
||||
NzForwardRenderQueue::TransparentStaticModel& staticModel = m_renderQueue.transparentStaticModels[pair.first];
|
||||
|
||||
const NzMatrix4f& matrix = staticModel.transformMatrix;
|
||||
NzStaticMesh* mesh = staticModel.mesh;
|
||||
|
||||
const NzIndexBuffer* indexBuffer = mesh->GetIndexBuffer();
|
||||
const NzVertexBuffer* vertexBuffer = mesh->GetVertexBuffer();
|
||||
|
||||
// Gestion du draw call avant la boucle de rendu
|
||||
std::function<void(nzPrimitiveMode, unsigned int, unsigned int)> drawFunc;
|
||||
unsigned int indexCount;
|
||||
|
||||
if (indexBuffer)
|
||||
{
|
||||
drawFunc = NzRenderer::DrawIndexedPrimitives;
|
||||
indexCount = indexBuffer->GetIndexCount();
|
||||
}
|
||||
else
|
||||
{
|
||||
drawFunc = NzRenderer::DrawPrimitives;
|
||||
indexCount = vertexBuffer->GetVertexCount();
|
||||
}
|
||||
|
||||
NzRenderer::SetIndexBuffer(indexBuffer);
|
||||
NzRenderer::SetVertexBuffer(vertexBuffer);
|
||||
|
||||
// Calcul des lumières les plus proches
|
||||
///TODO: LightManager ?
|
||||
if (lightCountLocation != -1)
|
||||
{
|
||||
std::vector<const NzLight*>& visibleLights = m_renderQueue.visibleLights;
|
||||
|
||||
lightComparator.pos = matrix.GetTranslation();
|
||||
std::sort(visibleLights.begin(), visibleLights.end(), lightComparator);
|
||||
|
||||
unsigned int max = std::min(std::min(NAZARA_RENDERER_SHADER_MAX_LIGHTCOUNT - lightCount, m_maxLightsPerObject), static_cast<unsigned int>(visibleLights.size()));
|
||||
for (unsigned int i = 0; i < max; ++i)
|
||||
visibleLights[i]->Apply(shader, lightCount++);
|
||||
|
||||
shader->SendInteger(lightCountLocation, lightCount);
|
||||
}
|
||||
|
||||
NzRenderer::SetMatrix(nzMatrixType_World, matrix);
|
||||
drawFunc(mesh->GetPrimitiveMode(), 0, indexCount);
|
||||
}
|
||||
else
|
||||
{
|
||||
///TODO
|
||||
}
|
||||
}
|
||||
|
||||
// Les autres drawables (Exemple: Terrain)
|
||||
for (const NzDrawable* drawable : m_renderQueue.otherDrawables)
|
||||
drawable->Draw();
|
||||
}
|
||||
|
||||
unsigned int NzForwardRenderTechnique::GetMaxLightsPerObject() const
|
||||
{
|
||||
return m_maxLightsPerObject;
|
||||
}
|
||||
|
||||
NzAbstractRenderQueue* NzForwardRenderTechnique::GetRenderQueue()
|
||||
{
|
||||
return &m_renderQueue;
|
||||
}
|
||||
|
||||
void NzForwardRenderTechnique::SetMaxLightsPerObject(unsigned int lightCount)
|
||||
{
|
||||
m_maxLightsPerObject = lightCount;
|
||||
}
|
||||
Reference in New Issue
Block a user