void FSkyVertexBuffer::CreateDome()
{
// the first thing we put into the buffer is the fog layer object which is just 4 triangles around the viewpoint.
mVertices.Reserve(12);
mVertices[0].Set( 1.0f, 1.0f, -1.0f);
mVertices[1].Set( 1.0f, -1.0f, -1.0f);
mVertices[2].Set(-1.0f, 0.0f, -1.0f);
mVertices[3].Set( 1.0f, 1.0f, -1.0f);
mVertices[4].Set( 1.0f, -1.0f, -1.0f);
mVertices[5].Set( 0.0f, 0.0f, 1.0f);
mVertices[6].Set(-1.0f, 0.0f, -1.0f);
mVertices[7].Set( 1.0f, 1.0f, -1.0f);
mVertices[8].Set( 0.0f, 0.0f, 1.0f);
mVertices[9].Set(1.0f, -1.0f, -1.0f);
mVertices[10].Set(-1.0f, 0.0f, -1.0f);
mVertices[11].Set( 0.0f, 0.0f, 1.0f);
mColumns = 128;
mRows = 4;
CreateSkyHemisphere(SKYHEMI_UPPER);
CreateSkyHemisphere(SKYHEMI_LOWER);
mPrimStart.Push(mVertices.Size());
glBindBuffer(GL_ARRAY_BUFFER, vbo_id);
glBufferData(GL_ARRAY_BUFFER, mVertices.Size() * sizeof(FSkyVertex), &mVertices[0], GL_STATIC_DRAW);
}
void FSkyVertexBuffer::CreateDome()
{
// the first thing we put into the buffer is the fog layer object which is just 4 triangles around the viewpoint.
mVertices.Reserve(12);
mVertices[0].Set(1.0f, 1.0f, -1.0f);
mVertices[1].Set(1.0f, -1.0f, -1.0f);
mVertices[2].Set(-1.0f, 0.0f, -1.0f);
mVertices[3].Set(1.0f, 1.0f, -1.0f);
mVertices[4].Set(1.0f, -1.0f, -1.0f);
mVertices[5].Set(0.0f, 0.0f, 1.0f);
mVertices[6].Set(-1.0f, 0.0f, -1.0f);
mVertices[7].Set(1.0f, 1.0f, -1.0f);
mVertices[8].Set(0.0f, 0.0f, 1.0f);
mVertices[9].Set(1.0f, -1.0f, -1.0f);
mVertices[10].Set(-1.0f, 0.0f, -1.0f);
mVertices[11].Set(0.0f, 0.0f, 1.0f);
mColumns = 128;
mRows = 4;
CreateSkyHemisphere(SKYHEMI_UPPER);
CreateSkyHemisphere(SKYHEMI_LOWER);
mPrimStart.Push(mVertices.Size());
mSideStart = mVertices.Size();
mFaceStart[0] = mSideStart + 10;
mFaceStart[1] = mFaceStart[0] + 4;
mFaceStart[2] = mFaceStart[1] + 4;
mFaceStart[3] = mFaceStart[2] + 4;
mFaceStart[4] = mFaceStart[3] + 4;
mFaceStart[5] = mFaceStart[4] + 4;
mFaceStart[6] = mFaceStart[5] + 4;
mVertices.Reserve(10 + 7*4);
FSkyVertex *ptr = &mVertices[mSideStart];
// all sides
ptr[0].SetXYZ(128.f, 128.f, -128.f, 0, 0);
ptr[1].SetXYZ(128.f, -128.f, -128.f, 0, 1);
ptr[2].SetXYZ(-128.f, 128.f, -128.f, 0.25f, 0);
ptr[3].SetXYZ(-128.f, -128.f, -128.f, 0.25f, 1);
ptr[4].SetXYZ(-128.f, 128.f, 128.f, 0.5f, 0);
ptr[5].SetXYZ(-128.f, -128.f, 128.f, 0.5f, 1);
ptr[6].SetXYZ(128.f, 128.f, 128.f, 0.75f, 0);
ptr[7].SetXYZ(128.f, -128.f, 128.f, 0.75f, 1);
ptr[8].SetXYZ(128.f, 128.f, -128.f, 1, 0);
ptr[9].SetXYZ(128.f, -128.f, -128.f, 1, 1);
// north face
ptr[10].SetXYZ(128.f, 128.f, -128.f, 0, 0);
ptr[11].SetXYZ(-128.f, 128.f, -128.f, 1, 0);
ptr[12].SetXYZ(128.f, -128.f, -128.f, 0, 1);
ptr[13].SetXYZ(-128.f, -128.f, -128.f, 1, 1);
// east face
ptr[14].SetXYZ(-128.f, 128.f, -128.f, 0, 0);
ptr[15].SetXYZ(-128.f, 128.f, 128.f, 1, 0);
ptr[16].SetXYZ(-128.f, -128.f, -128.f, 0, 1);
ptr[17].SetXYZ(-128.f, -128.f, 128.f, 1, 1);
// south face
ptr[18].SetXYZ(-128.f, 128.f, 128.f, 0, 0);
ptr[19].SetXYZ(128.f, 128.f, 128.f, 1, 0);
ptr[20].SetXYZ(-128.f, -128.f, 128.f, 0, 1);
ptr[21].SetXYZ(128.f, -128.f, 128.f, 1, 1);
// west face
ptr[22].SetXYZ(128.f, 128.f, 128.f, 0, 0);
ptr[23].SetXYZ(128.f, 128.f, -128.f, 1, 0);
ptr[24].SetXYZ(128.f, -128.f, 128.f, 0, 1);
ptr[25].SetXYZ(128.f, -128.f, -128.f, 1, 1);
// bottom face
ptr[26].SetXYZ(128.f, -128.f, -128.f, 0, 0);
ptr[27].SetXYZ(-128.f, -128.f, -128.f, 1, 0);
ptr[28].SetXYZ(128.f, -128.f, 128.f, 0, 1);
ptr[29].SetXYZ(-128.f, -128.f, 128.f, 1, 1);
// top face
ptr[30].SetXYZ(128.f, 128.f, -128.f, 0, 0);
ptr[31].SetXYZ(-128.f, 128.f, -128.f, 1, 0);
ptr[32].SetXYZ(128.f, 128.f, 128.f, 0, 1);
ptr[33].SetXYZ(-128.f, 128.f, 128.f, 1, 1);
// top face flipped
ptr[34].SetXYZ(128.f, 128.f, -128.f, 0, 1);
ptr[35].SetXYZ(-128.f, 128.f, -128.f, 1, 1);
ptr[36].SetXYZ(128.f, 128.f, 128.f, 0, 0);
ptr[37].SetXYZ(-128.f, 128.f, 128.f, 1, 0);
glBindBuffer(GL_ARRAY_BUFFER, vbo_id);
glBufferData(GL_ARRAY_BUFFER, mVertices.Size() * sizeof(FSkyVertex), &mVertices[0], GL_STATIC_DRAW);
}