Rtch/Lephisto
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[Add] Rudimentary work on small rocky planetoid rendering.

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This commit is contained in:
Rtch90 2017-11-24 23:28:10 +00:00
parent 92590d2136
commit 236d683a81
2 changed files with 128 additions and 21 deletions
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3
src/object_viewer_view.cpp
View File

@ -59,7 +59,8 @@ void ObjectViewerView::Update(void) {
viewingDist = CLAMP(viewingDist, 10, 1e10);
char buf[128];
snprintf(buf, sizeof(buf), "View dist: %.2f", viewingDist);
Body* body = L3D::player->GetNavTarget();
snprintf(buf, sizeof(buf), "View dist: %.2f Object: %s", viewingDist, (body ? body->GetLabel().c_str() : "<none>"));
m_infoLabel->SetText(buf);
}

122
src/planet.cpp
View File

@ -434,6 +434,9 @@ static void SubdivideVeryLongTri(vector3d& tip, vector3d& v1, vector3d& v2, int
}
static void MakeContinent(matrix4x4d& rot, float scale, MTRand& rng) {
glDisable(GL_DEPTH_TEST);
glEnable(GL_NORMALIZE);
const int nvps = exp2(GEOSPLIT);
const int numVertices = nvps*3 + 1;
/*
@ -463,23 +466,123 @@ static void MakeContinent(matrix4x4d& rot, float scale, MTRand& rng) {
for(unsigned int i = 0; i < edgeVerts.size()-1; i++) {
SubdivideVeryLongTri(center, edgeVerts[i], edgeVerts[i+1], 16);
}
glEnable(GL_DEPTH_TEST);
glDisable(GL_NORMALIZE);
}
/* Draw at north pole. */
void DrawCircle(float rad) {
glPushAttrib(GL_DEPTH_BUFFER_BIT);
glDisable(GL_DEPTH_TEST);
glEnable(GL_NORMALIZE);
glEnable(GL_BLEND);
glBegin(GL_TRIANGLE_FAN);
glVertex3d(0, 1, 0);
for(double theta = 0; theta < M_PI * 2; theta += 0.1) {
vector3d v(rad*sin(theta), 1, rad*cos(theta));
v.Normalize();
glNormal3dv(&v.x);
glVertex3dv(&v.x);
}
{
vector3d v(0, 1, rad);
v.Normalize();
glNormal3dv(&v.x);
glVertex3dv(&v.x);
}
glEnd();
glDisable(GL_BLEND);
glDisable(GL_NORMALIZE);
glPopAttrib();
}
/* Draws at north pole. */
void DrawHollowCircle(float rad1, float rad2) {
glPushAttrib(GL_DEPTH_BUFFER_BIT);
glDisable(GL_DEPTH_TEST);
glEnable(GL_NORMALIZE);
glEnable(GL_BLEND);
glBegin(GL_TRIANGLE_STRIP);
for(double theta = 0; theta < 2*M_PI; theta += 0.1) {
vector3d v(rad1*sin(theta), 1, rad1*cos(theta));
v.Normalize();
glNormal3dv(&v.x);
glVertex3dv(&v.x);
}
{
vector3d v(0, 1, rad1);
v.Normalize();
glNormal3dv(&v.x);
glVertex3dv(&v.x);
v = vector3d(0, 1, rad2);
v.Normalize();
glNormal3dv(&v.x);
glVertex3dv(&v.x);
}
glEnd();
glDisable(GL_BLEND);
glDisable(GL_NORMALIZE);
glPopAttrib();
}
void Planet::DrawRockyPlanet(void) {
int n;
float r;
matrix4x4d rot;
float col[4];
//MTRand rng((int)L3D::GetGameTime());
MTRand rng(sbody.seed);
float blue[4] = { .2, .2, 1, 1 };
float green[4] = { .2, .8, .2, 1 };
float white[4] = { 1, 1, 1, 1 };
ColRangeObj_t barrenBodyCol = { { .3, .3, .3, 1 }, { 0, 0, 0, 0 }, .3 };
ColRangeObj_t barrenContCol = { { .2, .2, .2, .6 }, { 0, 0, 0, 0 }, .3 };
switch(sbody.type) {
case StarSystem::TYPE_PLANET_DWARF:
barrenBodyCol.GenCol(col, rng);
SetMaterialColor(col);
DrawLovelyRoundCube(1.0f);
n = rng(3, 10);
barrenContCol.GenCol(col, rng);
SetMaterialColor(col);
while(n--) {
rot = matrix4x4d::RotateXMatrix(rng(M_PI/2));
rot.RotateZ(rng(M_PI*2));
MakeContinent(rot, rng.drange(0.1, 0.5), rng);
}
n = rng(10, 30);
while(n--) {
r = rng.drange(0.02, 0.1);
glPushMatrix();
glRotatef(rng.drange(0, 360), 1, 0, 0);
glRotatef(rng.drange(0, 360), 0, 0, 1);
DrawCircle(r);
glPopMatrix();
}
n = rng(10, 30);
while(n--) {
r = rng.drange(0.02, 0.2);
glPushMatrix();
glRotatef(rng.drange(0, 360), 1, 0, 0);
glRotatef(rng.drange(0, 360), 0, 0, 1);
DrawHollowCircle(r, r*1.3);
glPopMatrix();
}
break;
case StarSystem::TYPE_PLANET_INDIGENOUS_LIFE:
SetMaterialColor(blue);
DrawLovelyRoundCube(1.0f);
glDisable(GL_DEPTH_TEST);
glEnable(GL_NORMALIZE);
matrix4x4d rot;
int n = rng(3, 10);
n = rng(3, 10);
while(n--) {
SetMaterialColor(green);
rot = matrix4x4d::RotateXMatrix(-M_PI/2+rng.drange(-M_PI/3, M_PI/3));
@ -492,9 +595,12 @@ void Planet::DrawRockyPlanet(void) {
MakeContinent(rot, 0.25, rng);
rot = matrix4x4d::RotateXMatrix(M_PI);
MakeContinent(rot, 0.25, rng);
glEnable(GL_DEPTH_TEST);
glDisable(GL_NORMALIZE);
break;
default:
barrenBodyCol.GenCol(col, rng);
SetMaterialColor(col);
DrawLovelyRoundCube(1.0f);
}
}
void Planet::DrawGasGiant(void) {