Khaganat-NeL/khanat-opennel-code
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Cylindrical GUI

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kaetemi 2014-08-02 19:50:26 +02:00
parent 4add0e3610
commit 5580d0b761
1 changed files with 60 additions and 2 deletions
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62
code/nel/src/3d/stereo_ovr.cpp
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@ -692,6 +692,9 @@ void CStereoOVR::renderGUI()
m_Driver->getWindowSize(winw, winh);
float width = height * (float)winw / (float)winh;
float bottom = -(height * 0.5f);
float top = (height * 0.5f);
NLMISC::CQuadUV quadUV;
quadUV.V0 = CVector(-(width * 0.5f), distance, -(height * 0.5f));
quadUV.V1 = CVector((width * 0.5f), distance, -(height * 0.5f));
@ -701,8 +704,63 @@ void CStereoOVR::renderGUI()
quadUV.Uv1 = CUV(1.f, 0.f);
quadUV.Uv2 = CUV(1.f, 1.f);
quadUV.Uv3 = CUV(0.f, 1.f);
const uint nbQuads = 128;
static CVertexBuffer vb;
static CIndexBuffer ib;
vb.setVertexFormat(CVertexBuffer::PositionFlag | CVertexBuffer::TexCoord0Flag);
vb.setPreferredMemory(CVertexBuffer::RAMVolatile, false);
vb.setNumVertices((nbQuads + 1) * 2);
m_Driver->drawQuad(quadUV, umat);
{
CVertexBufferReadWrite vba;
vb.lock(vba);
float relWidth = width / distance;
float quadWidth = relWidth / (float)nbQuads;
for (uint i = 0; i < nbQuads + 1; ++i)
{
uint vi0 = i * 2;
uint vi1 = vi0 + 1;
float lineH = -(relWidth * 0.5f) + quadWidth * (float)i;
float lineUV = (float)i / (float)(nbQuads + 1);
float left = sin(lineH) * distance;
float forward = cos(lineH) * distance;
vba.setVertexCoord(vi0, left, forward, bottom);
vba.setTexCoord(vi0, 0, lineUV, 0.0f);
vba.setVertexCoord(vi1, left, forward, top);
vba.setTexCoord(vi1, 0, lineUV, 1.0f);
}
}
ib.setFormat(NL_DEFAULT_INDEX_BUFFER_FORMAT);
ib.setPreferredMemory(CIndexBuffer::RAMVolatile, false);
ib.setNumIndexes(nbQuads * 6);
{
CIndexBufferReadWrite iba;
ib.lock(iba);
for (uint i = 0; i < nbQuads; ++i)
{
uint ti0 = i * 2;
uint ti1 = ti0 + 1;
uint bl = ti0;
uint tl = ti0 + 1;
uint br = ti0 + 2;
uint tr = ti0 + 3;
iba.setTri(ti0 * 3, bl, tl, br);
iba.setTri(ti1 * 3, br, tl, tr);
}
}
IDriver *driver = static_cast<CDriverUser *>(m_Driver)->getDriver();
// m_Driver->setPolygonMode(UDriver::Line);
driver->activeVertexBuffer(vb);
driver->activeIndexBuffer(ib);
driver->renderTriangles(*umat.getObjectPtr(), 0, nbQuads * 2); //renderRawQuads(umat, 0, 128);
// m_Driver->setPolygonMode(UDriver::Filled);
// m_Driver->drawQuad(quadUV, umat);
m_Driver->deleteMaterial(umat);
}
@ -712,7 +770,7 @@ void CStereoOVR::renderGUI()
NL3D::UMaterial mat = m_Driver->createMaterial();
mat.setZWrite(false);
mat.setZFunc(UMaterial::always);
// mat.setZFunc(UMaterial::always); // Not nice!
mat.setDoubleSided(true);
mat.setColor(NLMISC::CRGBA::Red);
mat.setBlend(false);