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#include "RenderableBrushVertices.h"
#include "ibrush.h"
#include "Brush.h"
namespace brush
{
namespace detail
{
inline void addColouredVertices(const std::vector<Vector3>& sourceVertices, const Vector4& colour,
std::vector<render::RenderVertex>& vertices, std::vector<unsigned int>& indices)
{
auto indexOffset = static_cast<unsigned int>(vertices.size());
for (unsigned int i = 0; i < sourceVertices.size(); ++i)
{
const auto& vertex = sourceVertices[i];
vertices.push_back(render::RenderVertex(vertex, { 0,0,0 }, { 0,0 }, colour));
indices.push_back(indexOffset + i);
}
}
}
void RenderableBrushVertices::updateGeometry()
{
if (!_updateNeeded) return;
_updateNeeded = false;
// Get the vertices for our given mode
const auto& brushVertices = _brush.getVertices(_mode);
std::vector<render::RenderVertex> vertices;
std::vector<unsigned int> indices;
auto totalSize = brushVertices.size() + _selectedVertices.size();
vertices.reserve(totalSize);
indices.reserve(totalSize);
static const Vector3& vertexColour = GlobalBrushCreator().getSettings().getVertexColour();
static const Vector3& selectedVertexColour = GlobalBrushCreator().getSettings().getSelectedVertexColour();
if (!brushVertices.empty())
{
detail::addColouredVertices(brushVertices, { vertexColour, 1 }, vertices, indices);
}
detail::addColouredVertices(_selectedVertices, { selectedVertexColour, 1 }, vertices, indices);
updateGeometryWithData(render::GeometryType::Points, vertices, indices);
}
}
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