sigonasr2/SigRenderer3
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Render in O3 optimized mode.

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Co-authored-by: sigonasr2 <sigonasr2@gmail.com>
This commit is contained in:
sigonasr2 2022-10-10 01:15:14 -05:00
parent 050616b0b6
commit 6862923a50
3 changed files with 74 additions and 33 deletions
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C++ProjectTemplate
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105
main.cpp
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@ -368,7 +368,7 @@ private:
// the plane, the triangle simply becomes a smaller triangle
// Copy appearance info to new triangle
out_tri1.col = in_tri.col;
out_tri1.col = {in_tri.col.r,in_tri.col.g,255}; //in_tri.col;
// The inside point is valid, so keep that...
out_tri1.p[0] = *inside_points[0];
@ -388,8 +388,8 @@ private:
// represent a quad with two new triangles
// Copy appearance info to new triangles
out_tri1.col = in_tri.col;
out_tri2.col = in_tri.col;
out_tri1.col = {in_tri.col.r,255,in_tri.col.b}; //in_tri.col;
out_tri2.col = {255,in_tri.col.g,in_tri.col.b};//in_tri.col;
// The first triangle consists of the two inside points and a new
// point determined by the location where one side of the triangle
@ -434,7 +434,7 @@ public:
if (GetKey(olc::LEFT).bHeld) {
vCamera.x-=8*fElapsedTime;
}
vec3d vForward=Vector_Mul(vLookDir,8*fElapsedTime);
vec3d vForward=Vector_Mul(vLookDir,1*fElapsedTime);
if (GetKey(olc::W).bHeld) {
vCamera=Vector_Add(vCamera,vForward);
}
@ -493,12 +493,12 @@ public:
float dp = std::max(0.1f,Vector_DotProduct(light_dir,normal));
triTransformed.col=Pixel(255*dp*dp,255*dp*dp,255*dp*dp);
triViewed.p[0]=Matrix_MultiplyVector(matView,triTransformed.p[0]);
triViewed.p[1]=Matrix_MultiplyVector(matView,triTransformed.p[1]);
triViewed.p[2]=Matrix_MultiplyVector(matView,triTransformed.p[2]);
triViewed.col=Pixel(255*dp*dp,255*dp*dp,255*dp*dp);
int nClippedTriangles = 0;
triangle clipped[2];
nClippedTriangles = Triangle_ClipAgainstPlane({ 0.0f, 0.0f, 0.1f }, { 0.0f, 0.0f, 1.0f }, triViewed, clipped[0], clipped[1]);
@ -508,7 +508,7 @@ public:
triProjected.p[0]=Matrix_MultiplyVector(matProj,clipped[n].p[0]);
triProjected.p[1]=Matrix_MultiplyVector(matProj,clipped[n].p[1]);
triProjected.p[2]=Matrix_MultiplyVector(matProj,clipped[n].p[2]);
triProjected.col=triTransformed.col;
triProjected.col=clipped[n].col;
triProjected.p[0]=Vector_Div(triProjected.p[0],triProjected.p[0].w);
triProjected.p[1]=Vector_Div(triProjected.p[1],triProjected.p[1].w);
@ -540,35 +540,76 @@ public:
std::sort(vecTrianglesToRaster.begin(),vecTrianglesToRaster.end(),[](triangle&t1,triangle&t2){return (t1.p[0].z+t1.p[1].z+t1.p[2].z)/3.0f>(t2.p[0].z+t2.p[1].z+t2.p[2].z)/3.0f;});
for (auto&triProjected:vecTrianglesToRaster) {
int triRenderCount=0;
for (auto&triToRaster:vecTrianglesToRaster) {
// Rasterize triangle
SetDecalStructure(DecalStructure::LIST);
SetDecalMode(DecalMode::NORMAL);
DrawPolygonDecal(nullptr,{
{triProjected.p[0].x, triProjected.p[0].y},
{triProjected.p[1].x, triProjected.p[1].y},
{triProjected.p[2].x, triProjected.p[2].y}
},{
{triProjected.uv[0].u,triProjected.uv[0].v},
{triProjected.uv[1].u,triProjected.uv[1].v},
{triProjected.uv[2].u,triProjected.uv[2].v},
},triProjected.col);
SetDecalMode(DecalMode::WIREFRAME);
DrawPolygonDecal(nullptr,{
{triProjected.p[0].x, triProjected.p[0].y},
{triProjected.p[1].x, triProjected.p[1].y},
{triProjected.p[2].x, triProjected.p[2].y}
},{
{0,0},
{0,0},
{0,0},
},BLACK);
SetDecalStructure(DecalStructure::FAN);
triangle clipped[2];
std::list<triangle>listTriangles;
listTriangles.push_back(triToRaster);
int nNewTriangles=1;
for (int p = 0; p < 4; p++)
{
int nTrisToAdd = 0;
while (nNewTriangles > 0)
{
// Take triangle from front of queue
triangle test = listTriangles.front();
listTriangles.pop_front();
nNewTriangles--;
// Clip it against a plane. We only need to test each
// subsequent plane, against subsequent new triangles
// as all triangles after a plane clip are guaranteed
// to lie on the inside of the plane. I like how this
// comment is almost completely and utterly justified
switch (p)
{
case 0: nTrisToAdd = Triangle_ClipAgainstPlane({ 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, test, clipped[0], clipped[1]); break;
case 1: nTrisToAdd = Triangle_ClipAgainstPlane({ 0.0f, (float)ScreenHeight() - 1, 0.0f }, { 0.0f, -1.0f, 0.0f }, test, clipped[0], clipped[1]); break;
case 2: nTrisToAdd = Triangle_ClipAgainstPlane({ 0.0f, 0.0f, 0.0f }, { 1.0f, 0.0f, 0.0f }, test, clipped[0], clipped[1]); break;
case 3: nTrisToAdd = Triangle_ClipAgainstPlane({ (float)ScreenWidth() - 1, 0.0f, 0.0f }, { -1.0f, 0.0f, 0.0f }, test, clipped[0], clipped[1]); break;
}
// Clipping may yield a variable number of triangles, so
// add these new ones to the back of the queue for subsequent
// clipping against next planes
for (int w = 0; w < nTrisToAdd; w++)
listTriangles.push_back(clipped[w]);
}
nNewTriangles = listTriangles.size();
}
for (auto&t:listTriangles) {
// Rasterize triangle
SetDecalStructure(DecalStructure::LIST);
SetDecalMode(DecalMode::NORMAL);
DrawPolygonDecal(nullptr,{
{t.p[0].x, t.p[0].y},
{t.p[1].x, t.p[1].y},
{t.p[2].x, t.p[2].y}
},{
{t.uv[0].u,t.uv[0].v},
{t.uv[1].u,t.uv[1].v},
{t.uv[2].u,t.uv[2].v},
},t.col);
/*SetDecalMode(DecalMode::WIREFRAME);
DrawPolygonDecal(nullptr,{
{t.p[0].x, t.p[0].y},
{t.p[1].x, t.p[1].y},
{t.p[2].x, t.p[2].y}
},{
{0,0},
{0,0},
{0,0},
},BLACK);*/
SetDecalStructure(DecalStructure::FAN);
triRenderCount++;
}
}
SetDecalMode(DecalMode::NORMAL);
DrawStringDecal({0,0},"Triangles: "+std::to_string(vecTrianglesToRaster.size()));
DrawStringDecal({0,0},"Triangles: "+std::to_string(triRenderCount));
return true;

2
sig
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@ -3,7 +3,7 @@ export AUTO_UPDATE=true
source utils/define.sh
define PROJECT_NAME "C++ProjectTemplate"
define CUSTOM_PARAMS "-std=c++17 -lX11 -lGL -lpthread -lpng -lstdc++fs -lpulse -lpulse-simple"
define CUSTOM_PARAMS "-std=c++17 -lX11 -lGL -lpthread -lpng -lstdc++fs -lpulse -lpulse-simple -O3 -s -DNDEBUG"
define LANGUAGE "C++"
source utils/main.sh