void CalculateSpotMatrix(Matrix4& dest, Light* light, const Vector3& translation)
{
Node* lightNode = light->GetNode();
Matrix3x4 posAdjust(translation, Quaternion::IDENTITY, 1.0f);
Matrix3x4 spotView = Matrix3x4(lightNode->GetWorldPosition(), lightNode->GetWorldRotation(), 1.0f).Inverse();
Matrix4 spotProj(Matrix4::ZERO);
Matrix4 texAdjust(Matrix4::IDENTITY);
// Make the projected light slightly smaller than the shadow map to prevent light spill
float h = 1.005f / tanf(light->GetFov() * M_DEGTORAD * 0.5f);
float w = h / light->GetAspectRatio();
spotProj.m00_ = w;
spotProj.m11_ = h;
spotProj.m22_ = 1.0f / Max(light->GetRange(), M_EPSILON);
spotProj.m32_ = 1.0f;
#ifdef URHO3D_OPENGL
texAdjust.SetTranslation(Vector3(0.5f, 0.5f, 0.5f));
texAdjust.SetScale(Vector3(0.5f, -0.5f, 0.5f));
#else
texAdjust.SetTranslation(Vector3(0.5f, 0.5f, 0.0f));
texAdjust.SetScale(Vector3(0.5f, -0.5f, 1.0f));
#endif
dest = texAdjust * spotProj * spotView * posAdjust;
}
void DiSprite::UpdateGeometry(DiRenderTarget* rt)
{
if (mQuads.empty())
{
mPrimitiveCount = 0;
return;
}
if (!rt)
return;
ReleaseSourceData();
auto vb = Driver->CreateVertexBuffer();
if (!vb)
return;
mSourceData.push_back(vb);
mVerticesNum = 6 * mQuads.size();
mPrimitiveCount = 2 * mQuads.size();
uint32 vertSize = (3 + 2) * sizeof(float) + sizeof(ARGB);
mSourceData[0]->Create(mVerticesNum*vertSize);
uint8* lockedData = DI_NEW uint8[mVerticesNum*vertSize];
uint32 w = (uint32)(rt->GetWidth() * rt->GetViewport().mWidth);
uint32 h = (uint32)(rt->GetHeight() * rt->GetViewport().mHeight);
DiVec2 invScreenSize;
invScreenSize = DiVec2(1.0f / (float)w, 1.0f / (float)h);
DiVec2 posAdjust(1, -1);
float* dest = (float*)lockedData;
if (!mMaterial || mMaterial->HasTexture())
{
for (auto it = mQuads.begin(); it != mQuads.end(); ++it)
{
DiQuadElement quad = *it;
DiVec2 topLeft, bottomRight, topLeftUv, bottomRightUv;
quad.top *= -1;
quad.bottom *= -1;
if (!quad.absCoord)
{
quad.left *= (float)w;
quad.right *= (float)w;
quad.top *= (float)h;
quad.bottom *= (float)h;
}
topLeft = (DiVec2((float)quad.left, (float)quad.top)/*+DiVec2(0.5f,0.5f)*/) * invScreenSize*2;
bottomRight = (DiVec2((float)quad.right, (float)quad.bottom)/*+DiVec2(0.5f,0.5f)*/) * invScreenSize*2;
topLeft -= posAdjust;
bottomRight -= posAdjust;
topLeftUv = DiVec2((float)quad.leftUv, (float)quad.topUv);
bottomRightUv = DiVec2((float)quad.rightUv, (float)quad.bottomUv);
*dest++ = topLeft.x; *dest++ = topLeft.y; *dest++ = 0.0f;
*((ARGB*)dest) = quad.topLeftColor; dest++;
*dest++ = topLeftUv.x; *dest++ = topLeftUv.y;
*dest++ = topLeft.x; *dest++ = bottomRight.y; *dest++ = 0.0f;
*((ARGB*)dest) = quad.bottomLeftColor; dest++;
*dest++ = topLeftUv.x; *dest++ = bottomRightUv.y;
*dest++ = bottomRight.x; *dest++ = topLeft.y; *dest++ = 0.0f;
*((ARGB*)dest) = quad.topRightColor; dest++;
*dest++ = bottomRightUv.x; *dest++ = topLeftUv.y;
*dest++ = bottomRight.x; *dest++ = topLeft.y; *dest++ = 0.0f;
*((ARGB*)dest) = quad.topRightColor; dest++;
*dest++ = bottomRightUv.x; *dest++ = topLeftUv.y;
*dest++ = topLeft.x; *dest++ = bottomRight.y; *dest++ = 0.0f;
*((ARGB*)dest) = quad.bottomLeftColor; dest++;
*dest++ = topLeftUv.x; *dest++ = bottomRightUv.y;
*dest++ = bottomRight.x; *dest++ = bottomRight.y; *dest++ = 0.0f;
*((ARGB*)dest) = quad.bottomRightColor; dest++;
*dest++ = bottomRightUv.x; *dest++ = bottomRightUv.y;
}
}
else
{
for (auto it = mQuads.begin(); it != mQuads.end(); ++it)
{
DiQuadElement quad = *it;
quad.top *= -1;
quad.bottom *= -1;
if (!quad.absCoord)
{
quad.left *= (float)w;
quad.right *= (float)w;
quad.top *= (float)h;
quad.bottom *= (float)h;
}
DiVec2 topLeft, bottomRight, topLeftUV, bottomRightUV;
topLeft = (DiVec2((float)quad.left, (float)quad.top)) * invScreenSize*2;
bottomRight = (DiVec2((float)quad.right, (float)quad.bottom)) * invScreenSize*2;
topLeft -= posAdjust;
bottomRight -= posAdjust;
*dest++ = topLeft.x; *dest++ = topLeft.y; *dest++ = 0.0f;
*((ARGB*)dest) = quad.topLeftColor; dest++;
dest += 2;
*dest++ = topLeft.x; *dest++ = bottomRight.y; *dest++ = 0.0f;
*((ARGB*)dest) = quad.bottomLeftColor; dest++;
dest += 2;
*dest++ = bottomRight.x; *dest++ = topLeft.y; *dest++ = 0.0f;
*((ARGB*)dest) = quad.topRightColor; dest++;
dest += 2;
*dest++ = bottomRight.x; *dest++ = topLeft.y; *dest++ = 0.0f;
*((ARGB*)dest) = quad.topRightColor; dest++;
dest += 2;
*dest++ = topLeft.x; *dest++ = bottomRight.y; *dest++ = 0.0f;
*((ARGB*)dest) = quad.bottomLeftColor; dest++;
dest += 2;
*dest++ = bottomRight.x; *dest++ = bottomRight.y; *dest++ = 0.0f;
*((ARGB*)dest) = quad.bottomRightColor; dest++;
dest += 2;
}
}
mSourceData[0]->WriteData(0, mVerticesNum*vertSize, lockedData);
DI_DELETE[] lockedData;
mSourceData[0]->SetStride(vertSize);
}
