void LegacyRenderer::render(const ICamera<float>& camera, const PointBuffer& buffer, const float pointSize)
{
const auto& positions = buffer.getPosition().get();// buffers[0].get();
const auto& colors = buffer.getColor().get();
if (positions.empty()) {
return;
}
GLfloat distance[] = { 0.0, 0.0, 1.0 };
glPointParameterfv(GL_POINT_DISTANCE_ATTENUATION, distance);
glEnable(GL_POINT_SPRITE);
glEnable(GL_DEPTH_TEST);
glPointSize(pointSize);
Matrix4d<float> projectionMatrix = camera.getProjectionMatrix();
Matrix4d<float> modelviewMatrix = camera.getModelviewMatrix();;
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glLoadMatrixf(projectionMatrix.toArray().data());
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glLoadMatrixf(modelviewMatrix.toArray().data());
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, positions.data());
glEnableClientState(GL_COLOR_ARRAY);
glColorPointer(4, GL_FLOAT, 0, colors.data());
assert(glGetError() == GL_NO_ERROR);
glDrawArrays(GL_POINTS, 0, static_cast<GLsizei>(positions.size()) / 3);
//glDrawElements(GL_POINTS, indices.size(), GL_UNSIGNED_INT, indices.data());
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
glDisable(GL_DEPTH_TEST);
glDisable(GL_POINT_SPRITE);
}
void LegacyRenderer::renderAlphaBlend(const ICamera<float>& camera, const PointBuffer& buffer)
{
const auto& positions = buffer.getPosition().get();// buffers[0].get();
const auto& colors = buffer.getColor().get();
if (positions.empty()) {
return;
}
glDisable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glPointSize(10.0f);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
Matrix4d<float> projectionMatrix = camera.getProjectionMatrix();
Matrix4d<float> modelviewMatrix = camera.getModelviewMatrix();;
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glLoadMatrixf(projectionMatrix.toArray().data());
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glLoadMatrixf(modelviewMatrix.toArray().data());
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, positions.data());
glEnableClientState(GL_COLOR_ARRAY);
glColorPointer(4, GL_FLOAT, 0, colors.data());
assert(glGetError() == GL_NO_ERROR);
glDrawArrays(GL_POINTS, 0, static_cast<GLsizei>(positions.size()) / 3);
//glDrawElements(GL_POINTS, indices.size(), GL_UNSIGNED_INT, indices.data());
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
glDisable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
}
void LegacyRenderer::render(const Matrix4d<float>& projectionMatrix, const Matrix4d<float>& modelviewMatrix, const Line2dBuffer& buffer, const GLfloat width)
{
const auto& positions = buffer.getPosition().get();// buffers[0].get();
const auto& colors = buffer.getColor().get();
const auto& indices = buffer.getIds();
if (positions.empty()) {
return;
}
glLineWidth(width);
glEnable(GL_DEPTH_TEST);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glLoadMatrixf(projectionMatrix.toArray().data());
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glLoadMatrixf(modelviewMatrix.toArray().data());
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(2, GL_FLOAT, 0, positions.data());
glEnableClientState(GL_COLOR_ARRAY);
glColorPointer(4, GL_FLOAT, 0, colors.data());
assert(glGetError() == GL_NO_ERROR);
//glDrawArrays(GL_LINES, 0, static_cast<GLsizei>(positions.size()) / 3);
glDrawElements(GL_LINES, static_cast<GLsizei>(indices.size()), GL_UNSIGNED_INT, indices.data());
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
glDisable(GL_DEPTH_TEST);
glLineWidth(1);
}
