Graphic pipeline rework
- Prepare flow for multithreading support - Optimize memory access of vertices - More efficient back-face culling computation - Added option to disable gprof in Cmake
This commit is contained in:
parent
ea712fae42
commit
4f48b76aaf
GPG Key ID:
832E52F4E23F8F24
@ -25,6 +25,7 @@ project(ProtoTank VERSION 0.1.0 DESCRIPTION "Arcade 80s-style game with tanks" L
|
||||
|
||||
# Compilation option
|
||||
option(DISABLE_CPU_OPTI "Disable CPU optimizations" OFF)
|
||||
option(ENABLE_PROFILER "Enable gprof integration" ON)
|
||||
|
||||
if(NOT DISABLE_CPU_OPTI)
|
||||
if(NOT MSVC)
|
||||
@ -97,8 +98,10 @@ if(MSVC)
|
||||
set_target_properties(${PROJECT_NAME} PROPERTIES IMPORT_PREFIX "lib")
|
||||
else()
|
||||
# GCC profiler options
|
||||
if(ENABLE_PROFILER)
|
||||
list(APPEND COMPOPTS -pg -ggdb3 -no-pie)
|
||||
list(APPEND LINKOPTS -pg -ggdb3 -no-pie)
|
||||
endif()
|
||||
|
||||
# static linking of stdlib
|
||||
if(MINGW)
|
||||
|
||||
@ -9,11 +9,17 @@
|
||||
|
||||
//#define DISABLE_AABB_CLIPPING
|
||||
//#define DISABLE_TRIANGLE_CLIPPING
|
||||
#define DISABLE_WIREFRAME_MODE
|
||||
//#define DISABLE_WIREFRAME_MODE
|
||||
|
||||
|
||||
// Rendering pipeline:
|
||||
// model matrix (Object SRT) -> view matrix (camera matrix inverted) -> proj matrix -> clipping -> perspective divide -> viewport transformation -> Rasterizer (draw pixels inside projected triangles on 2D screen)
|
||||
// model matrix (Object SRT) -> view matrix (camera matrix inverted) -> proj matrix -> clipping -> perspective divide
|
||||
// -> viewport transformation -> Rasterizer (draw pixels inside projected triangles on 2D screen)
|
||||
// Revised rendering pipeline:
|
||||
// AABB clipping -> model transform matrix (Object SRT) -> view matrix (camera matrix inverted) -> proj matrix
|
||||
// -> faces culling -> triangles clipping -> perspective divide -> viewport transformation -> Rasterizer (draw pixels inside projected triangles on 2D screen)
|
||||
//
|
||||
// Virtual space transformations order:
|
||||
// object space -> world space -> camera space -> homogeneous clip space -> NDC space -> raster space
|
||||
//
|
||||
// Rasterizer inputs elements:
|
||||
@ -31,7 +37,16 @@
|
||||
// * https://en.wikipedia.org/wiki/Hidden-surface_determination#Occlusion_culling
|
||||
// * https://en.wikipedia.org/wiki/Bounding_volume_hierarchy
|
||||
|
||||
static bool VertexClipTest(M3D_F4& V, sf::Vector2f& RTsize, float gb_factor);
|
||||
struct RenderItem final {
|
||||
const WorldObject* pObj = nullptr;
|
||||
const M3D_ContainmentType frustrumClipType = CONTAINS;
|
||||
|
||||
RenderItem() = delete;
|
||||
RenderItem(const WorldObject* pObj) : pObj(pObj) {}
|
||||
RenderItem(const WorldObject* pObj, const M3D_ContainmentType cType) : pObj(pObj), frustrumClipType(cType) {}
|
||||
};
|
||||
|
||||
static bool VertexClipTest(M3D_F4* V, sf::Vector2f& RTsize);
|
||||
|
||||
Graphic3DRenderer::Graphic3DRenderer() {
|
||||
if (mMainCamera == nullptr) {
|
||||
@ -42,24 +57,24 @@ Graphic3DRenderer::Graphic3DRenderer() {
|
||||
mMainCamera->UpdateCamView();
|
||||
|
||||
// Fill world object list to render
|
||||
mRenderList.clear();
|
||||
mRenderList.push_back(std::make_shared<ObjectDbgCube>());
|
||||
mRenderList.back()->SetPosition(0.f, 0.f, 15.f);
|
||||
mRenderList.back()->SetScale(2.0f);
|
||||
mRenderList.push_back(std::make_shared<ObjectDbgCube>());
|
||||
mRenderList.back()->SetPosition(6.f, 2.f, 2.f);
|
||||
mRenderList.back()->SetScale(2.0f);
|
||||
mRenderList.push_back(std::make_shared<ObjectDbgCube>());
|
||||
mRenderList.back()->SetPosition(-8.f, 5.f, 10.f);
|
||||
mRenderList.back()->SetScale(2.0f);
|
||||
mRenderList.push_back(std::make_shared<Tank>());
|
||||
mRenderList.back()->SetPosition(0.f, 0.f, 0.f);
|
||||
mRenderList.back()->SetScale(5.0f);
|
||||
mWorldObjsList.clear();
|
||||
mWorldObjsList.push_back(std::make_shared<ObjectDbgCube>());
|
||||
mWorldObjsList.back()->SetPosition(0.f, 0.f, 15.f);
|
||||
mWorldObjsList.back()->SetScale(2.0f);
|
||||
mWorldObjsList.push_back(std::make_shared<ObjectDbgCube>());
|
||||
mWorldObjsList.back()->SetPosition(6.f, 2.f, 2.f);
|
||||
mWorldObjsList.back()->SetScale(2.0f);
|
||||
mWorldObjsList.push_back(std::make_shared<ObjectDbgCube>());
|
||||
mWorldObjsList.back()->SetPosition(-8.f, 5.f, 10.f);
|
||||
mWorldObjsList.back()->SetScale(2.0f);
|
||||
mWorldObjsList.push_back(std::make_shared<Tank>());
|
||||
mWorldObjsList.back()->SetPosition(0.f, 0.f, 0.f);
|
||||
mWorldObjsList.back()->SetScale(5.0f);
|
||||
|
||||
for (size_t i = 0; i < 40; i++) {
|
||||
mRenderList.push_back(std::make_shared<Tank>());
|
||||
mRenderList.back()->SetPosition(-100.f + (i * 5.f), 0.f, 8.f);
|
||||
mRenderList.back()->SetScale(5.0f);
|
||||
mWorldObjsList.push_back(std::make_shared<Tank>());
|
||||
mWorldObjsList.back()->SetPosition(-100.f + (i * 5.f), 0.f, 8.f);
|
||||
mWorldObjsList.back()->SetScale(5.0f);
|
||||
}
|
||||
}
|
||||
|
||||
@ -100,9 +115,6 @@ void Graphic3DRenderer::UpdateCamera(CAMERA_MOVE type, const float value) {
|
||||
}
|
||||
|
||||
void Graphic3DRenderer::Draw(sf::RenderTexture& context) {
|
||||
sf::BlendMode sBM = sf::BlendNone;
|
||||
sf::RenderStates sRS(sBM);
|
||||
|
||||
#ifdef DEBUG
|
||||
drawnTriCount = 0;
|
||||
#endif
|
||||
@ -110,149 +122,8 @@ void Graphic3DRenderer::Draw(sf::RenderTexture& context) {
|
||||
// Hardcoded debug movement, TODO: remove it
|
||||
UpdateInternalTestObjects();
|
||||
|
||||
// Load main matrices
|
||||
M3D_MATRIX viewMat = mMainCamera->GetView();
|
||||
M3D_MATRIX invViewMat = M3D_MInverse(viewMat); // aka. camMat
|
||||
M3D_MATRIX projMat = mMainCamera->GetProj();
|
||||
M3D_MATRIX viewProjMat = viewMat * projMat;
|
||||
|
||||
// Create the frustrum "box"
|
||||
M3D_BoundingFrustum camFrustrum(projMat, false);
|
||||
camFrustrum.Transform(camFrustrum, invViewMat);
|
||||
|
||||
const float sgRatio = ComputeSGRatio();
|
||||
// -= Draw the sky =-
|
||||
// To avoid unfilled pixels on screen, the "sky-plane" will be rendered
|
||||
// all over the screen.
|
||||
// It's will be useless to use and compute a specific rectangle from the
|
||||
// size of the screen!
|
||||
// The sky have an infinite z-depth (any objects will be rendered over).
|
||||
#ifdef DISABLE_WIREFRAME_MODE
|
||||
context.clear(SF_COLOR_4CHEX(0x00B5E2FF));
|
||||
#endif
|
||||
|
||||
// -= Draw the ground =-
|
||||
// A simple rectangle shape is used to draw the ground over the sky-plane.
|
||||
// The ground is draw after the sky, and before any other object.
|
||||
// Depending of the camera pitch, the ratio sky/ground on screen vary.
|
||||
// Like the sky, the ground have an infinite z-depth (any objects will
|
||||
// be rendered over).
|
||||
#ifdef DISABLE_WIREFRAME_MODE
|
||||
sf::RectangleShape gndRect;
|
||||
if (mMainCamera->GetPos3f().y >= 0) {
|
||||
gndRect.setSize(sf::Vector2f(mRTSize.x, mRTSize.y * sgRatio));
|
||||
gndRect.setPosition(sf::Vector2f(0, mRTSize.y * (1.f - sgRatio) - 1));
|
||||
} else {
|
||||
gndRect.setSize(sf::Vector2f(mRTSize.x, mRTSize.y * (1.f - sgRatio)));
|
||||
gndRect.setPosition(sf::Vector2f(0, 0));
|
||||
}
|
||||
gndRect.setFillColor(SF_COLOR_4CHEX(0x009A17FF));
|
||||
//gndRect.setFillColor(SF_COLOR_4CHEX(0xD5C2A5FF));
|
||||
context.draw(gndRect, sRS);
|
||||
#else
|
||||
sf::Vertex gndLine[2];
|
||||
gndLine[0].position = sf::Vector2f(0, mRTSize.y * (1.f - sgRatio));
|
||||
gndLine[0].color = sf::Color::White;
|
||||
gndLine[1].position = sf::Vector2f(mRTSize.x - 1, mRTSize.y * (1.f - sgRatio));
|
||||
gndLine[1].color = sf::Color::White;
|
||||
context.draw(gndLine, 2, sf::Lines);
|
||||
#endif
|
||||
|
||||
// Process scene's objects
|
||||
size_t prevVCount = 0;
|
||||
std::vector<M3D_F4> projVertices;
|
||||
for (auto& obj : mRenderList) {
|
||||
M3D_BoundingBox projAABB = obj->GetAABB();
|
||||
auto oTMat = obj->GetTransform();
|
||||
|
||||
// Object outside frustrum clipping
|
||||
projAABB.Transform(projAABB, oTMat);
|
||||
M3D_ContainmentType objInFrustrum = camFrustrum.Contains(projAABB);
|
||||
#ifndef DISABLE_AABB_CLIPPING
|
||||
if (objInFrustrum != DISJOINT)
|
||||
#endif
|
||||
{
|
||||
size_t vCount = obj->GetObjectVerticesCount();
|
||||
auto& oMesh = obj->GetObjectMesh();
|
||||
if (vCount > prevVCount)
|
||||
projVertices.resize(vCount);
|
||||
|
||||
// Vertices homogeneous clip space transformation
|
||||
M3D_V3Transform(
|
||||
projVertices.data(), sizeof(M3D_F4),
|
||||
reinterpret_cast<const M3D_F3*>(oMesh.vertices.data()), sizeof(Vertex),
|
||||
vCount,
|
||||
oTMat * viewProjMat
|
||||
);
|
||||
|
||||
// Draw the object indice triangles if visible or partially clipped
|
||||
sf::Vertex v_tri[4];
|
||||
for (auto& objPt : oMesh.parts) {
|
||||
auto indicePtr = static_cast<const uint32_t*>(objPt.indices.data());
|
||||
|
||||
for (uint32_t i = 0; i < objPt.GetIndicesCount(); i += 3) {
|
||||
// Misscontructed indices tree failsafe
|
||||
if (i+2 > objPt.GetIndicesCount())
|
||||
break;
|
||||
|
||||
// Triangle clipping
|
||||
#ifndef DISABLE_TRIANGLE_CLIPPING
|
||||
//TODO: scissor/clipping depending of how many vertices are outside/inside the clipspace, implement complete Cohen-Sutherland algo or Cyrus–Beck one
|
||||
if (VertexClipTest(projVertices.at(indicePtr[i]), mRTSize, 2.5f) &&
|
||||
VertexClipTest(projVertices.at(indicePtr[i+1]), mRTSize, 2.5f) &&
|
||||
VertexClipTest(projVertices.at(indicePtr[i+2]), mRTSize, 2.5f))
|
||||
#endif
|
||||
{
|
||||
|
||||
M3D_VECTOR V1 = M3D_V4LoadF4(&projVertices.at(indicePtr[i]));
|
||||
M3D_VECTOR V2 = M3D_V4LoadF4(&projVertices.at(indicePtr[i+1]));
|
||||
M3D_VECTOR V3 = M3D_V4LoadF4(&projVertices.at(indicePtr[i+2]));
|
||||
|
||||
// Do the perspective divide
|
||||
V1 = M3D_V4Divide(V1, M3D_V4SplatW(V1));
|
||||
V2 = M3D_V4Divide(V2, M3D_V4SplatW(V2));
|
||||
V3 = M3D_V4Divide(V3, M3D_V4SplatW(V3));
|
||||
|
||||
V1 = M3D_V3TransformNDCToViewport(V1, 0.f, 0.f, mRTSize.x, mRTSize.y, 1.f, 100.f);
|
||||
V2 = M3D_V3TransformNDCToViewport(V2, 0.f, 0.f, mRTSize.x, mRTSize.y, 1.f, 100.f);
|
||||
V3 = M3D_V3TransformNDCToViewport(V3, 0.f, 0.f, mRTSize.x, mRTSize.y, 1.f, 100.f);
|
||||
|
||||
// Face culling
|
||||
if (M3D_V4GetX(M3D_TNormal(V1,V2,V3))*0.5f <= 0) {
|
||||
if (objInFrustrum == DISJOINT) {
|
||||
v_tri[0].color = sf::Color::Red;
|
||||
v_tri[1].color = sf::Color::Red;
|
||||
v_tri[2].color = sf::Color::Red;
|
||||
} else if (objInFrustrum == INTERSECTS) {
|
||||
v_tri[0].color = sf::Color::Yellow;
|
||||
v_tri[1].color = sf::Color::Yellow;
|
||||
v_tri[2].color = sf::Color::Yellow;
|
||||
} else {
|
||||
v_tri[0].color = oMesh.vertices[indicePtr[i]].color;
|
||||
v_tri[1].color = oMesh.vertices[indicePtr[i+1]].color;
|
||||
v_tri[2].color = oMesh.vertices[indicePtr[i+2]].color;
|
||||
}
|
||||
|
||||
v_tri[0].position = sf::Vector2f(M3D_V4GetX(V1), M3D_V4GetY(V1));
|
||||
v_tri[1].position = sf::Vector2f(M3D_V4GetX(V2), M3D_V4GetY(V2));
|
||||
v_tri[2].position = sf::Vector2f(M3D_V4GetX(V3), M3D_V4GetY(V3));
|
||||
v_tri[3] = v_tri[0];
|
||||
#ifdef DISABLE_WIREFRAME_MODE
|
||||
context.draw(v_tri, 4, sf::Triangles, sRS);
|
||||
#else
|
||||
context.draw(v_tri, 4, sf::LineStrip, sRS);
|
||||
#endif
|
||||
#ifdef DEBUG
|
||||
drawnTriCount++;
|
||||
#endif
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
prevVCount = prevVCount;
|
||||
}
|
||||
DrawBackground(context);
|
||||
DrawSceneObjects(context);
|
||||
}
|
||||
|
||||
void Graphic3DRenderer::UpdateInternalTestObjects() {
|
||||
@ -262,10 +133,10 @@ void Graphic3DRenderer::UpdateInternalTestObjects() {
|
||||
thetaAngle2 = thetaAngle2 >= 6.283185f ? -6.283185f : thetaAngle2 + 0.005f;
|
||||
static float thetaAngle3 = -4.78f;
|
||||
thetaAngle3 = thetaAngle3 >= 6.283185f ? -6.283185f : thetaAngle3 + 0.008f;
|
||||
mRenderList[0]->SetRotation(thetaAngle, 0.f, thetaAngle * 0.5f);
|
||||
mRenderList[1]->SetRotation(thetaAngle2, 0.f, thetaAngle2 * 0.5f);
|
||||
mRenderList[2]->SetRotation(thetaAngle3, 0.f, thetaAngle3 * 0.5f);
|
||||
mRenderList[3]->SetRotation(0.f, thetaAngle, 0.f);
|
||||
mWorldObjsList[0]->SetRotation(thetaAngle, 0.f, thetaAngle * 0.5f);
|
||||
mWorldObjsList[1]->SetRotation(thetaAngle2, 0.f, thetaAngle2 * 0.5f);
|
||||
mWorldObjsList[2]->SetRotation(thetaAngle3, 0.f, thetaAngle3 * 0.5f);
|
||||
mWorldObjsList[3]->SetRotation(0.f, thetaAngle, 0.f);
|
||||
}
|
||||
|
||||
// Compute the screen ratio between the ground and the sky (aka. Line of Horizon)
|
||||
@ -314,9 +185,180 @@ float Graphic3DRenderer::ComputeSGRatio() {
|
||||
return sgRatio;
|
||||
}
|
||||
|
||||
inline static bool VertexClipTest(M3D_F4& V, sf::Vector2f& RTsize, float gb_factor) {
|
||||
void Graphic3DRenderer::DrawBackground(sf::RenderTexture& context) {
|
||||
sf::BlendMode sBM = sf::BlendNone;
|
||||
sf::RenderStates sRS(sBM);
|
||||
|
||||
const float sgRatio = ComputeSGRatio();
|
||||
|
||||
// -= Draw the sky =-
|
||||
// To avoid unfilled pixels on screen, the "sky-plane" will be rendered
|
||||
// all over the screen.
|
||||
// It's will be useless to use and compute a specific rectangle from the
|
||||
// size of the screen!
|
||||
// The sky have an infinite z-depth (any objects will be rendered over).
|
||||
#ifdef DISABLE_WIREFRAME_MODE
|
||||
context.clear(SF_COLOR_4CHEX(0x00B5E2FF));
|
||||
#endif
|
||||
|
||||
// -= Draw the ground =-
|
||||
// A simple rectangle shape is used to draw the ground over the sky-plane.
|
||||
// The ground is draw after the sky, and before any other object.
|
||||
// Depending of the camera pitch, the ratio sky/ground on screen vary.
|
||||
// Like the sky, the ground have an infinite z-depth (any objects will
|
||||
// be rendered over).
|
||||
#ifdef DISABLE_WIREFRAME_MODE
|
||||
sf::RectangleShape gndRect;
|
||||
if (mMainCamera->GetPos3f().y >= 0) {
|
||||
gndRect.setSize(sf::Vector2f(mRTSize.x, mRTSize.y * sgRatio));
|
||||
gndRect.setPosition(sf::Vector2f(0, mRTSize.y * (1.f - sgRatio) - 1));
|
||||
} else {
|
||||
gndRect.setSize(sf::Vector2f(mRTSize.x, mRTSize.y * (1.f - sgRatio)));
|
||||
gndRect.setPosition(sf::Vector2f(0, 0));
|
||||
}
|
||||
gndRect.setFillColor(SF_COLOR_4CHEX(0x009A17FF));
|
||||
//gndRect.setFillColor(SF_COLOR_4CHEX(0xD5C2A5FF));
|
||||
context.draw(gndRect, sRS);
|
||||
#else
|
||||
sf::Vertex gndLine[2];
|
||||
gndLine[0].position = sf::Vector2f(0, mRTSize.y * (1.f - sgRatio));
|
||||
gndLine[0].color = sf::Color::White;
|
||||
gndLine[1].position = sf::Vector2f(mRTSize.x - 1, mRTSize.y * (1.f - sgRatio));
|
||||
gndLine[1].color = sf::Color::White;
|
||||
context.draw(gndLine, 2, sf::Lines, sRS);
|
||||
#endif
|
||||
}
|
||||
|
||||
void Graphic3DRenderer::DrawSceneObjects(sf::RenderTexture& context) {
|
||||
sf::BlendMode sBM = sf::BlendNone;
|
||||
sf::RenderStates sRS(sBM);
|
||||
|
||||
// Get global (camera and projection) matrixes
|
||||
M3D_MATRIX viewMat = mMainCamera->GetView();
|
||||
M3D_MATRIX invViewMat = M3D_MInverse(viewMat); // aka. camera matrix
|
||||
M3D_MATRIX projMat = mMainCamera->GetProj();
|
||||
M3D_MATRIX viewProjMat = viewMat * projMat;
|
||||
|
||||
std::vector<RenderItem> renderingList;
|
||||
renderingList.reserve(mWorldObjsList.size());
|
||||
M3D_BoundingFrustum camFrustrum(projMat, false);
|
||||
camFrustrum.Transform(camFrustrum, invViewMat);
|
||||
for (auto& obj : mWorldObjsList) {
|
||||
#ifndef DISABLE_AABB_CLIPPING
|
||||
// Objects visibility AABB test
|
||||
M3D_BoundingBox projAABB = obj->GetAABB();
|
||||
projAABB.Transform(projAABB, obj->GetTransform());
|
||||
|
||||
// Do the camera/AABB test
|
||||
M3D_ContainmentType aabbTestResult = camFrustrum.Contains(projAABB);
|
||||
if (aabbTestResult != DISJOINT)
|
||||
renderingList.emplace_back(RenderItem(obj.get(), aabbTestResult));
|
||||
#else
|
||||
renderingList.emplace_back(RenderItem(obj.get()));
|
||||
#endif
|
||||
}
|
||||
|
||||
// Do the NDC projection of visibles vertices in camera frustrum
|
||||
size_t prevVCount = 0;
|
||||
std::vector<M3D_F4> projVertices;
|
||||
sf::Vector2f guardband = mRTSize * 3.5f;
|
||||
for (auto& ri : renderingList) {
|
||||
size_t vCount = ri.pObj->GetObjectVerticesCount();
|
||||
// Resize the output buffer only if we encounter object with more vertices than before
|
||||
if (vCount > prevVCount) {
|
||||
projVertices.resize(vCount);
|
||||
prevVCount = vCount;
|
||||
}
|
||||
|
||||
auto& oMesh = ri.pObj->GetObjectMesh();
|
||||
// Vertices homogeneous clip space (NDC) transformation
|
||||
M3D_V3Transform(
|
||||
projVertices.data(), sizeof(M3D_F4),
|
||||
reinterpret_cast<const M3D_F3*>(oMesh.vertices.data()), sizeof(Vertex),
|
||||
vCount,
|
||||
ri.pObj->GetTransform() * viewProjMat
|
||||
);
|
||||
|
||||
// Look into triangles indices
|
||||
M3D_F4* triVertices[3];
|
||||
sf::Vertex drawPoints[4];
|
||||
for (auto& objPt : oMesh.parts) {
|
||||
auto indicePtr = static_cast<const uint32_t*>(objPt.indices.data());
|
||||
|
||||
for (uint32_t i = 0; i < objPt.GetIndicesCount(); i += 3) {
|
||||
// Indices failsafe - discard triangle rendering
|
||||
if ((i+2 > objPt.GetIndicesCount()) || indicePtr[i] >= vCount || indicePtr[i+1] >= vCount || indicePtr[i+2] >= vCount) {
|
||||
//log.PrintWarning()
|
||||
break;
|
||||
}
|
||||
|
||||
// Retrieve the vertices pointer from indices list
|
||||
triVertices[0] = &projVertices[indicePtr[i]];
|
||||
triVertices[1] = &projVertices[indicePtr[i+1]];
|
||||
triVertices[2] = &projVertices[indicePtr[i+2]];
|
||||
|
||||
// Triangle frustrum clipping -- TODO: Use complete Cohen-Sutherland algo or Cyrus–Beck one
|
||||
#ifndef DISABLE_TRIANGLE_CLIPPING
|
||||
if (VertexClipTest(triVertices[0], guardband) && VertexClipTest(triVertices[1], guardband) && VertexClipTest(triVertices[2], guardband))
|
||||
#endif
|
||||
{
|
||||
M3D_VECTOR V1 = M3D_V4LoadF4(triVertices[0]);
|
||||
M3D_VECTOR V2 = M3D_V4LoadF4(triVertices[1]);
|
||||
M3D_VECTOR V3 = M3D_V4LoadF4(triVertices[2]);
|
||||
|
||||
// Back-face culling in LH-z system
|
||||
// (front when (triangle normal . projected vertice) < 0)
|
||||
//if (M3D_V4GetX(M3D_V3Dot(M3D_Tri3DNormal(V1,V2,V3), V1)) < 0)
|
||||
// NOT USED - Too heavy computation resources usage
|
||||
|
||||
// Do the perspective divide
|
||||
V1 = M3D_V4Divide(V1, M3D_V4SplatW(V1));
|
||||
V2 = M3D_V4Divide(V2, M3D_V4SplatW(V2));
|
||||
V3 = M3D_V4Divide(V3, M3D_V4SplatW(V3));
|
||||
|
||||
// Finally project from NDC to the screen
|
||||
V1 = M3D_V3TransformNDCToViewport(V1, 0.f, 0.f, mRTSize.x, mRTSize.y, 1.f, 100.f);
|
||||
V2 = M3D_V3TransformNDCToViewport(V2, 0.f, 0.f, mRTSize.x, mRTSize.y, 1.f, 100.f);
|
||||
V3 = M3D_V3TransformNDCToViewport(V3, 0.f, 0.f, mRTSize.x, mRTSize.y, 1.f, 100.f);
|
||||
|
||||
// Simplified back-face culling on 2D viewport triangle
|
||||
if (M3D_V4GetX(M3D_Tri2DNormal(V1,V2,V3)) > 0) {
|
||||
|
||||
|
||||
// Set pixels color depending of frustrum clipping type - debug purpose
|
||||
if (ri.frustrumClipType == DISJOINT) {
|
||||
drawPoints[0].color = drawPoints[1].color = drawPoints[2].color = sf::Color::Red;
|
||||
} else if (ri.frustrumClipType == INTERSECTS) {
|
||||
drawPoints[0].color = drawPoints[1].color = drawPoints[2].color = sf::Color::Yellow;
|
||||
} else {
|
||||
drawPoints[0].color = oMesh.vertices[indicePtr[i]].color;
|
||||
drawPoints[1].color = oMesh.vertices[indicePtr[i+1]].color;
|
||||
drawPoints[2].color = oMesh.vertices[indicePtr[i+2]].color;
|
||||
}
|
||||
|
||||
drawPoints[0].position = sf::Vector2f(M3D_V4GetX(V1), M3D_V4GetY(V1));
|
||||
drawPoints[1].position = sf::Vector2f(M3D_V4GetX(V2), M3D_V4GetY(V2));
|
||||
drawPoints[2].position = sf::Vector2f(M3D_V4GetX(V3), M3D_V4GetY(V3));
|
||||
drawPoints[3] = drawPoints[0];
|
||||
#ifdef DISABLE_WIREFRAME_MODE
|
||||
context.draw(drawPoints, 4, sf::Triangles, sRS);
|
||||
#else
|
||||
context.draw(drawPoints, 4, sf::LineStrip, sRS);
|
||||
#endif
|
||||
#ifdef DEBUG
|
||||
drawnTriCount++;
|
||||
#endif
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
__attribute__((always_inline)) inline static bool VertexClipTest(M3D_F4* V, sf::Vector2f& RTsize) {
|
||||
// Guard band are usually 2-3x the viewport size for the clipping test
|
||||
return (V.x > -RTsize.x*gb_factor*V.w && V.x < RTsize.y*gb_factor*V.w &&
|
||||
V.y > -RTsize.x*gb_factor*V.w && V.y < RTsize.y*gb_factor*V.w
|
||||
return (V->z >= 0 && V->z <= V->w &&
|
||||
V->x >= -RTsize.x*V->w && V->x <= RTsize.x*V->w &&
|
||||
V->y >= -RTsize.y*V->w && V->y <= RTsize.y*V->w
|
||||
);
|
||||
}
|
||||
@ -33,22 +33,21 @@ public:
|
||||
void Draw(sf::RenderTexture& context);
|
||||
|
||||
// Debug datas
|
||||
#ifdef DEBUG
|
||||
const unsigned int GetDrawTriCount() const noexcept { return drawnTriCount; }
|
||||
#endif
|
||||
|
||||
private:
|
||||
std::unique_ptr<Camera> mMainCamera; // Default player view
|
||||
sf::Vector2f mRTSize;
|
||||
|
||||
std::vector<std::shared_ptr<WorldObject>> mRenderList; // List of elements to be rendered next frame
|
||||
std::vector<std::shared_ptr<WorldObject>> mWorldObjsList; // List of elements to be rendered next frame
|
||||
|
||||
void UpdateInternalTestObjects();
|
||||
float ComputeSGRatio();
|
||||
|
||||
void DrawBackground(sf::RenderTexture& context);
|
||||
void DrawSceneObjects(sf::RenderTexture& context);
|
||||
|
||||
// Debug datas
|
||||
#ifdef DEBUG
|
||||
unsigned int drawnTriCount;
|
||||
#endif
|
||||
unsigned int drawnTriCount = 0;
|
||||
|
||||
};
|
||||
@ -350,6 +350,10 @@ M3D_ALIGNED_STRUCT(16) M3D_MATRIX {
|
||||
//
|
||||
// Load/Store functions
|
||||
//
|
||||
M3D_VECTOR M3D_V4LoadF2(const M3D_F2* src) noexcept;
|
||||
M3D_VECTOR M3D_V4LoadF2A(const M3D_F2A* src) noexcept;
|
||||
void M3D_V4StoreF2(M3D_F2* dst, M3D_VECTOR V) noexcept;
|
||||
void M3D_V4StoreF2A(M3D_F2A* dst, M3D_VECTOR V) noexcept;
|
||||
M3D_VECTOR M3D_V4LoadF3(const M3D_F3* src) noexcept;
|
||||
M3D_VECTOR M3D_V4LoadF3A(const M3D_F3A* src) noexcept;
|
||||
void M3D_V4StoreF3(M3D_F3* dst, M3D_VECTOR V) noexcept;
|
||||
@ -542,7 +546,8 @@ inline M3D_VECTOR M3D_V4Swizzle(M3D_VECTOR V) noexcept {
|
||||
M3D_VECTOR M3D_QMultiply(M3D_VECTOR Q1, M3D_VECTOR Q2) noexcept;
|
||||
M3D_VECTOR M3D_QConjugate(M3D_VECTOR Q) noexcept;
|
||||
|
||||
M3D_VECTOR M3D_TNormal(M3D_VECTOR P1, M3D_VECTOR P2, M3D_VECTOR P3) noexcept;
|
||||
M3D_VECTOR M3D_Tri2DNormal(M3D_VECTOR P1, M3D_VECTOR P2, M3D_VECTOR P3) noexcept;
|
||||
M3D_VECTOR M3D_Tri3DNormal(M3D_VECTOR P1, M3D_VECTOR P2, M3D_VECTOR P3) noexcept;
|
||||
|
||||
void M3D_V4SinCos(M3D_VECTOR* pSin, M3D_VECTOR* pCos, M3D_VECTOR V) noexcept;
|
||||
|
||||
|
||||
@ -25,6 +25,50 @@ namespace M3D_Internal {
|
||||
|
||||
/* -------------------------------------------------------------------------------------------------------------------------- */
|
||||
|
||||
inline M3D_VECTOR M3D_V4LoadF2(const M3D_F2* src) noexcept {
|
||||
#ifdef DISABLE_INTRINSICS
|
||||
M3D_VECTOR V;
|
||||
V.v4f[0] = src->x;
|
||||
V.v4f[1] = src->y;
|
||||
V.v4f[2] = 0.f;
|
||||
V.v4f[3] = 0.f;
|
||||
return V;
|
||||
#else
|
||||
return _mm_castpd_ps(_mm_load_sd(reinterpret_cast<const double*>(src)));
|
||||
#endif
|
||||
}
|
||||
|
||||
inline M3D_VECTOR M3D_V4LoadF2A(const M3D_F2A* src) noexcept {
|
||||
#ifdef DISABLE_INTRINSICS
|
||||
M3D_VECTOR V;
|
||||
V.v4f[0] = src->x;
|
||||
V.v4f[1] = src->y;
|
||||
V.v4f[2] = 0.f;
|
||||
V.v4f[3] = 0.f;
|
||||
return V;
|
||||
#else
|
||||
return _mm_castpd_ps(_mm_load_sd(reinterpret_cast<const double*>(src)));
|
||||
#endif
|
||||
}
|
||||
|
||||
inline void M3D_V4StoreF2(M3D_F2* dst, M3D_VECTOR V) noexcept {
|
||||
#ifdef DISABLE_INTRINSICS
|
||||
dst->x = V.v4f[0];
|
||||
dst->y = V.v4f[1];
|
||||
#else
|
||||
_mm_store_sd(reinterpret_cast<double*>(dst), _mm_castps_pd(V));
|
||||
#endif
|
||||
}
|
||||
|
||||
inline void M3D_V4StoreF2A(M3D_F2A* dst, M3D_VECTOR V) noexcept {
|
||||
#ifdef DISABLE_INTRINSICS
|
||||
dst->x = V.v4f[0];
|
||||
dst->y = V.v4f[1];
|
||||
#else
|
||||
_mm_store_sd(reinterpret_cast<double*>(dst), _mm_castps_pd(V));
|
||||
#endif
|
||||
}
|
||||
|
||||
inline M3D_VECTOR M3D_V4LoadF3(const M3D_F3* src) noexcept {
|
||||
#ifdef DISABLE_INTRINSICS
|
||||
M3D_VECTOR V;
|
||||
@ -1161,18 +1205,18 @@ inline M3D_VECTOR M3D_V3Normalize(M3D_VECTOR V) noexcept {
|
||||
#else // SSE4_INTRINSICS
|
||||
M3D_VECTOR vLengthSq = _mm_dp_ps(V, V, 0x7f);
|
||||
// Prepare for the division
|
||||
M3D_VECTOR vResult = _mm_sqrt_ps(vLengthSq);
|
||||
M3D_VECTOR vResult = _mm_rsqrt_ps(vLengthSq);
|
||||
// Create zero with a single instruction
|
||||
M3D_VECTOR vZeroMask = _mm_setzero_ps();
|
||||
//M3D_VECTOR vZeroMask = _mm_setzero_ps();
|
||||
// Test for a divide by zero (Must be FP to detect -0.0)
|
||||
vZeroMask = _mm_cmpneq_ps(vZeroMask, vResult);
|
||||
//vZeroMask = _mm_cmpneq_ps(vZeroMask, vResult);
|
||||
// Failsafe on zero (Or epsilon) length planes
|
||||
// If the length is infinity, set the elements to zero
|
||||
vLengthSq = _mm_cmpneq_ps(vLengthSq, M3D_MInfinity);
|
||||
// Divide to perform the normalization
|
||||
vResult = _mm_div_ps(V, vResult);
|
||||
vResult = _mm_mul_ps(V, vResult);
|
||||
// Any that are infinity, set to zero
|
||||
vResult = _mm_and_ps(vResult, vZeroMask);
|
||||
//vResult = _mm_and_ps(vResult, vZeroMask);
|
||||
// Select qnan or result based on infinite length
|
||||
M3D_VECTOR vTemp1 = _mm_andnot_ps(vLengthSq, M3D_MQNaN);
|
||||
M3D_VECTOR vTemp2 = _mm_and_ps(vResult, vLengthSq);
|
||||
@ -1186,18 +1230,18 @@ inline M3D_VECTOR M3D_V3Normalize(M3D_VECTOR V) noexcept {
|
||||
vLengthSq = _mm_hadd_ps(vLengthSq, vLengthSq);
|
||||
vLengthSq = _mm_hadd_ps(vLengthSq, vLengthSq);
|
||||
// Prepare for the division
|
||||
M3D_VECTOR vResult = _mm_sqrt_ps(vLengthSq);
|
||||
M3D_VECTOR vResult = _mm_rsqrt_ps(vLengthSq);
|
||||
// Create zero with a single instruction
|
||||
M3D_VECTOR vZeroMask = _mm_setzero_ps();
|
||||
//M3D_VECTOR vZeroMask = _mm_setzero_ps();
|
||||
// Test for a divide by zero (Must be FP to detect -0.0)
|
||||
vZeroMask = _mm_cmpneq_ps(vZeroMask, vResult);
|
||||
//vZeroMask = _mm_cmpneq_ps(vZeroMask, vResult);
|
||||
// Failsafe on zero (Or epsilon) length planes
|
||||
// If the length is infinity, set the elements to zero
|
||||
vLengthSq = _mm_cmpneq_ps(vLengthSq, M3D_MInfinity);
|
||||
// Divide to perform the normalization
|
||||
vResult = _mm_div_ps(V, vResult);
|
||||
vResult = _mm_mul_ps(V, vResult);
|
||||
// Any that are infinity, set to zero
|
||||
vResult = _mm_and_ps(vResult, vZeroMask);
|
||||
//vResult = _mm_and_ps(vResult, vZeroMask);
|
||||
// Select qnan or result based on infinite length
|
||||
M3D_VECTOR vTemp1 = _mm_andnot_ps(vLengthSq, M3D_MQNaN);
|
||||
M3D_VECTOR vTemp2 = _mm_and_ps(vResult, vLengthSq);
|
||||
@ -1212,18 +1256,18 @@ inline M3D_VECTOR M3D_V3Normalize(M3D_VECTOR V) noexcept {
|
||||
vLengthSq = _mm_add_ss(vLengthSq, vTemp);
|
||||
vLengthSq = M3D_PERMUTE_PS(vLengthSq, _MM_SHUFFLE(0, 0, 0, 0));
|
||||
// Prepare for the division
|
||||
M3D_VECTOR vResult = _mm_sqrt_ps(vLengthSq);
|
||||
M3D_VECTOR vResult = _mm_rsqrt_ps(vLengthSq);
|
||||
// Create zero with a single instruction
|
||||
M3D_VECTOR vZeroMask = _mm_setzero_ps();
|
||||
//M3D_VECTOR vZeroMask = _mm_setzero_ps();
|
||||
// Test for a divide by zero (Must be FP to detect -0.0)
|
||||
vZeroMask = _mm_cmpneq_ps(vZeroMask, vResult);
|
||||
//vZeroMask = _mm_cmpneq_ps(vZeroMask, vResult);
|
||||
// Failsafe on zero (Or epsilon) length planes
|
||||
// If the length is infinity, set the elements to zero
|
||||
vLengthSq = _mm_cmpneq_ps(vLengthSq, M3D_MInfinity);
|
||||
// Divide to perform the normalization
|
||||
vResult = _mm_div_ps(V, vResult);
|
||||
// Any that are infinity, set to zero
|
||||
vResult = _mm_and_ps(vResult, vZeroMask);
|
||||
//vResult = _mm_and_ps(vResult, vZeroMask);
|
||||
// Select qnan or result based on infinite length
|
||||
M3D_VECTOR vTemp1 = _mm_andnot_ps(vLengthSq, M3D_MQNaN);
|
||||
M3D_VECTOR vTemp2 = _mm_and_ps(vResult, vLengthSq);
|
||||
@ -1339,18 +1383,18 @@ inline M3D_VECTOR M3D_V2Normalize(M3D_VECTOR V) noexcept {
|
||||
#else // SSE4_INTRINSICS
|
||||
M3D_VECTOR vLengthSq = _mm_dp_ps(V, V, 0x3f);
|
||||
// Prepare for the division
|
||||
M3D_VECTOR vResult = _mm_sqrt_ps(vLengthSq);
|
||||
M3D_VECTOR vResult = _mm_rsqrt_ps(vLengthSq);
|
||||
// Create zero with a single instruction
|
||||
M3D_VECTOR vZeroMask = _mm_setzero_ps();
|
||||
//M3D_VECTOR vZeroMask = _mm_setzero_ps();
|
||||
// Test for a divide by zero (Must be FP to detect -0.0)
|
||||
vZeroMask = _mm_cmpneq_ps(vZeroMask, vResult);
|
||||
//vZeroMask = _mm_cmpneq_ps(vZeroMask, vResult);
|
||||
// Failsafe on zero (Or epsilon) length planes
|
||||
// If the length is infinity, set the elements to zero
|
||||
vLengthSq = _mm_cmpneq_ps(vLengthSq, M3D_MInfinity);
|
||||
// Reciprocal mul to perform the normalization
|
||||
vResult = _mm_div_ps(V, vResult);
|
||||
vResult = _mm_mul_ps(V, vResult);
|
||||
// Any that are infinity, set to zero
|
||||
vResult = _mm_and_ps(vResult, vZeroMask);
|
||||
//vResult = _mm_and_ps(vResult, vZeroMask);
|
||||
// Select qnan or result based on infinite length
|
||||
M3D_VECTOR vTemp1 = _mm_andnot_ps(vLengthSq, M3D_MQNaN);
|
||||
M3D_VECTOR vTemp2 = _mm_and_ps(vResult, vLengthSq);
|
||||
@ -1363,18 +1407,18 @@ inline M3D_VECTOR M3D_V2Normalize(M3D_VECTOR V) noexcept {
|
||||
vLengthSq = _mm_hadd_ps(vLengthSq, vLengthSq);
|
||||
vLengthSq = _mm_moveldup_ps(vLengthSq);
|
||||
// Prepare for the division
|
||||
M3D_VECTOR vResult = _mm_sqrt_ps(vLengthSq);
|
||||
M3D_VECTOR vResult = _mm_rsqrt_ps(vLengthSq);
|
||||
// Create zero with a single instruction
|
||||
M3D_VECTOR vZeroMask = _mm_setzero_ps();
|
||||
//M3D_VECTOR vZeroMask = _mm_setzero_ps();
|
||||
// Test for a divide by zero (Must be FP to detect -0.0)
|
||||
vZeroMask = _mm_cmpneq_ps(vZeroMask, vResult);
|
||||
//vZeroMask = _mm_cmpneq_ps(vZeroMask, vResult);
|
||||
// Failsafe on zero (Or epsilon) length planes
|
||||
// If the length is infinity, set the elements to zero
|
||||
vLengthSq = _mm_cmpneq_ps(vLengthSq, M3D_MInfinity);
|
||||
// Reciprocal mul to perform the normalization
|
||||
vResult = _mm_div_ps(V, vResult);
|
||||
vResult = _mm_mul_ps(V, vResult);
|
||||
// Any that are infinity, set to zero
|
||||
vResult = _mm_and_ps(vResult, vZeroMask);
|
||||
//vResult = _mm_and_ps(vResult, vZeroMask);
|
||||
// Select qnan or result based on infinite length
|
||||
M3D_VECTOR vTemp1 = _mm_andnot_ps(vLengthSq, M3D_MQNaN);
|
||||
M3D_VECTOR vTemp2 = _mm_and_ps(vResult, vLengthSq);
|
||||
@ -1387,18 +1431,18 @@ inline M3D_VECTOR M3D_V2Normalize(M3D_VECTOR V) noexcept {
|
||||
vLengthSq = _mm_add_ss(vLengthSq, vTemp);
|
||||
vLengthSq = XM_PERMUTE_PS(vLengthSq, _MM_SHUFFLE(0, 0, 0, 0));
|
||||
// Prepare for the division
|
||||
M3D_VECTOR vResult = _mm_sqrt_ps(vLengthSq);
|
||||
M3D_VECTOR vResult = _mm_rsqrt_ps(vLengthSq);
|
||||
// Create zero with a single instruction
|
||||
M3D_VECTOR vZeroMask = _mm_setzero_ps();
|
||||
//M3D_VECTOR vZeroMask = _mm_setzero_ps();
|
||||
// Test for a divide by zero (Must be FP to detect -0.0)
|
||||
vZeroMask = _mm_cmpneq_ps(vZeroMask, vResult);
|
||||
//vZeroMask = _mm_cmpneq_ps(vZeroMask, vResult);
|
||||
// Failsafe on zero (Or epsilon) length planes
|
||||
// If the length is infinity, set the elements to zero
|
||||
vLengthSq = _mm_cmpneq_ps(vLengthSq, M3D_MInfinity);
|
||||
// Reciprocal mul to perform the normalization
|
||||
vResult = _mm_div_ps(V, vResult);
|
||||
vResult = _mm_mul_ps(V, vResult);
|
||||
// Any that are infinity, set to zero
|
||||
vResult = _mm_and_ps(vResult, vZeroMask);
|
||||
//vResult = _mm_and_ps(vResult, vZeroMask);
|
||||
// Select qnan or result based on infinite length
|
||||
M3D_VECTOR vTemp1 = _mm_andnot_ps(vLengthSq, M3D_MQNaN);
|
||||
M3D_VECTOR vTemp2 = _mm_and_ps(vResult, vLengthSq);
|
||||
@ -1473,11 +1517,18 @@ inline M3D_VECTOR M3D_QConjugate(M3D_VECTOR Q) noexcept {
|
||||
#endif
|
||||
}
|
||||
|
||||
inline M3D_VECTOR M3D_TNormal(M3D_VECTOR P1, M3D_VECTOR P2, M3D_VECTOR P3) noexcept {
|
||||
inline M3D_VECTOR M3D_Tri2DNormal(M3D_VECTOR P1, M3D_VECTOR P2, M3D_VECTOR P3) noexcept {
|
||||
M3D_VECTOR L1 = M3D_V4Subtract(P2, P1);
|
||||
M3D_VECTOR L2 = M3D_V4Subtract(P3, P1);
|
||||
|
||||
return M3D_V2Normalize(M3D_V2Cross(L2, L1));
|
||||
return M3D_V2Normalize(M3D_V2Cross(L1, L2));
|
||||
}
|
||||
|
||||
inline M3D_VECTOR M3D_Tri3DNormal(M3D_VECTOR P1, M3D_VECTOR P2, M3D_VECTOR P3) noexcept {
|
||||
M3D_VECTOR L1 = M3D_V4Subtract(P2, P1);
|
||||
M3D_VECTOR L2 = M3D_V4Subtract(P3, P1);
|
||||
|
||||
return M3D_V3Normalize(M3D_V3Cross(L1, L2));
|
||||
}
|
||||
|
||||
|
||||
|
||||
@ -8,14 +8,14 @@ public:
|
||||
virtual ~WorldObject() = 0;
|
||||
virtual const Mesh& GetObjectMesh() const = 0;
|
||||
virtual const size_t GetObjectVerticesCount() const = 0;
|
||||
const M3D_MATRIX GetTransform() noexcept {
|
||||
const M3D_MATRIX GetTransform() const noexcept {
|
||||
M3D_MATRIX M = M3D_MIdentity();
|
||||
M *= M3D_TransformMatrixScale(M3D_V4LoadF3(&scale));
|
||||
M *= M3D_TransformMatrixRotation(M3D_V4LoadF3(&rot));
|
||||
M *= M3D_TransformMatrixTranslate(M3D_V4LoadF3(&pos));
|
||||
return M;
|
||||
}
|
||||
const M3D_F4X4 GetTransform4x4f() noexcept {
|
||||
const M3D_F4X4 GetTransform4x4f() const noexcept {
|
||||
M3D_F4X4 out;
|
||||
M3D_V4StoreF4x4(&out, GetTransform());
|
||||
return out;
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user