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#include "PatchRenderables.h"
namespace detail
{
inline Vector4 getControlPointVertexColour(std::size_t i, std::size_t width)
{
static const Vector3& cornerColourVec = GlobalPatchModule().getSettings().getVertexColour(patch::PatchEditVertexType::Corners);
static const Vector3& insideColourVec = GlobalPatchModule().getSettings().getVertexColour(patch::PatchEditVertexType::Inside);
return (i % 2 || (i / width) % 2) ? insideColourVec : cornerColourVec;
}
}
RenderablePatchControlPoints::RenderablePatchControlPoints(const IPatch& patch,
const std::vector<PatchControlInstance>& controlPoints) :
_patch(patch),
_controlPoints(controlPoints),
_needsUpdate(true)
{}
void RenderablePatchControlPoints::updateGeometry()
{
if (!_needsUpdate) return;
_needsUpdate = false;
// Generate the new point vector
std::vector<render::RenderVertex> vertices;
std::vector<unsigned int> indices;
vertices.reserve(_controlPoints.size());
indices.reserve(_controlPoints.size());
static const Vector4 SelectedColour(0, 0, 0, 1);
auto width = _patch.getWidth();
for (std::size_t i = 0; i < _controlPoints.size(); ++i)
{
const auto& ctrl = _controlPoints[i];
vertices.push_back(render::RenderVertex(ctrl.control.vertex, { 0, 0, 0 }, { 0, 0 },
ctrl.isSelected() ? SelectedColour : detail::getControlPointVertexColour(i, width)));
indices.push_back(static_cast<unsigned int>(i));
}
updateGeometryWithData(render::GeometryType::Points, vertices, indices);
}
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