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SPE-2411: libvgcode - use GL_RGBA32F format for texture buffers used to render the gcode toolpaths

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enricoturri1966 2024-07-16 13:38:35 +02:00 committed by Lukas Matena
parent 42630f59f7
commit d5c7001a7c
1 changed files with 22 additions and 13 deletions
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35
src/libvgcode/src/ViewerImpl.cpp
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@ -895,9 +895,16 @@ void ViewerImpl::reset()
#endif // ENABLE_OPENGL_ES
}
// On some graphic cards texture buffers using GL_RGB32F format do not work, see:
// https://dev.prusa3d.com/browse/SPE-2411
// https://github.com/prusa3d/PrusaSlicer/issues/12908
// To let all drivers be happy, we use GL_RGBA32F format, so we need to add an extra (currently unused) float
// to position and heights_widths_angles vectors
using Vec4 = std::array<float, 4>;
static void extract_pos_and_or_hwa(const std::vector<PathVertex>& vertices, float travels_radius, float wipes_radius, BitSet<>& valid_lines_bitset,
std::vector<Vec3>* positions = nullptr, std::vector<Vec3>* heights_widths_angles = nullptr, bool update_bitset = false) {
static constexpr const Vec3 ZERO = { 0.0f, 0.0f, 0.0f };
std::vector<Vec4>* positions = nullptr, std::vector<Vec4>* heights_widths_angles = nullptr, bool update_bitset = false) {
static constexpr const Vec3 ZERO = { 0.0f, 0.0f, 0.0f };
if (positions == nullptr && heights_widths_angles == nullptr)
return;
if (vertices.empty())
@ -930,7 +937,8 @@ static void extract_pos_and_or_hwa(const std::vector<PathVertex>& vertices, floa
}
if (positions != nullptr) {
Vec3 position = v.position;
// the last component is a dummy float to comply with GL_RGBA32F format
Vec4 position = { v.position[0], v.position[1], v.position[2], 0.0f };
if (move_type == EMoveType::Extrude)
// push down extrusion vertices by half height to render them at the right z
position[2] -= 0.5f * v.height;
@ -952,9 +960,9 @@ static void extract_pos_and_or_hwa(const std::vector<PathVertex>& vertices, floa
height = v.height;
width = v.width;
}
// the last component is a dummy float to comply with GL_RGBA32F format
heights_widths_angles->push_back({ height, width,
std::atan2(prev_line[0] * this_line[1] - prev_line[1] * this_line[0], dot(prev_line, this_line)) });
std::atan2(prev_line[0] * this_line[1] - prev_line[1] * this_line[0], dot(prev_line, this_line)), 0.0f });
}
}
}
@ -1033,8 +1041,9 @@ void ViewerImpl::load(GCodeInputData&& gcode_data)
m_settings.time_mode = ETimeMode::Normal;
// buffers to send to gpu
std::vector<Vec3> positions;
std::vector<Vec3> heights_widths_angles;
// the last component is a dummy float to comply with GL_RGBA32F format
std::vector<Vec4> positions;
std::vector<Vec4> heights_widths_angles;
positions.reserve(m_vertices.size());
heights_widths_angles.reserve(m_vertices.size());
extract_pos_and_or_hwa(m_vertices, m_travels_radius, m_wipes_radius, m_valid_lines_bitset, &positions, &heights_widths_angles, true);
@ -1056,14 +1065,14 @@ void ViewerImpl::load(GCodeInputData&& gcode_data)
// create and fill positions buffer
glsafe(glGenBuffers(1, &m_positions_buf_id));
glsafe(glBindBuffer(GL_TEXTURE_BUFFER, m_positions_buf_id));
glsafe(glBufferData(GL_TEXTURE_BUFFER, positions.size() * sizeof(Vec3), positions.data(), GL_STATIC_DRAW));
glsafe(glBufferData(GL_TEXTURE_BUFFER, positions.size() * sizeof(Vec4), positions.data(), GL_STATIC_DRAW));
glsafe(glGenTextures(1, &m_positions_tex_id));
glsafe(glBindTexture(GL_TEXTURE_BUFFER, m_positions_tex_id));
// create and fill height, width and angles buffer
glsafe(glGenBuffers(1, &m_heights_widths_angles_buf_id));
glsafe(glBindBuffer(GL_TEXTURE_BUFFER, m_heights_widths_angles_buf_id));
glsafe(glBufferData(GL_TEXTURE_BUFFER, heights_widths_angles.size() * sizeof(Vec3), heights_widths_angles.data(), GL_DYNAMIC_DRAW));
glsafe(glBufferData(GL_TEXTURE_BUFFER, heights_widths_angles.size() * sizeof(Vec4), heights_widths_angles.data(), GL_DYNAMIC_DRAW));
glsafe(glGenTextures(1, &m_heights_widths_angles_tex_id));
glsafe(glBindTexture(GL_TEXTURE_BUFFER, m_heights_widths_angles_tex_id));
@ -1887,10 +1896,10 @@ void ViewerImpl::render_segments(const Mat4x4& view_matrix, const Mat4x4& projec
glsafe(glActiveTexture(GL_TEXTURE0));
glsafe(glBindTexture(GL_TEXTURE_BUFFER, m_positions_tex_id));
glsafe(glTexBuffer(GL_TEXTURE_BUFFER, GL_RGB32F, m_positions_buf_id));
glsafe(glTexBuffer(GL_TEXTURE_BUFFER, GL_RGBA32F, m_positions_buf_id));
glsafe(glActiveTexture(GL_TEXTURE1));
glsafe(glBindTexture(GL_TEXTURE_BUFFER, m_heights_widths_angles_tex_id));
glsafe(glTexBuffer(GL_TEXTURE_BUFFER, GL_RGB32F, m_heights_widths_angles_buf_id));
glsafe(glTexBuffer(GL_TEXTURE_BUFFER, GL_RGBA32F, m_heights_widths_angles_buf_id));
glsafe(glActiveTexture(GL_TEXTURE2));
glsafe(glBindTexture(GL_TEXTURE_BUFFER, m_colors_tex_id));
glsafe(glTexBuffer(GL_TEXTURE_BUFFER, GL_R32F, m_colors_buf_id));
@ -1974,10 +1983,10 @@ void ViewerImpl::render_options(const Mat4x4& view_matrix, const Mat4x4& project
glsafe(glActiveTexture(GL_TEXTURE0));
glsafe(glBindTexture(GL_TEXTURE_BUFFER, m_positions_tex_id));
glsafe(glTexBuffer(GL_TEXTURE_BUFFER, GL_RGB32F, m_positions_buf_id));
glsafe(glTexBuffer(GL_TEXTURE_BUFFER, GL_RGBA32F, m_positions_buf_id));
glsafe(glActiveTexture(GL_TEXTURE1));
glsafe(glBindTexture(GL_TEXTURE_BUFFER, m_heights_widths_angles_tex_id));
glsafe(glTexBuffer(GL_TEXTURE_BUFFER, GL_RGB32F, m_heights_widths_angles_buf_id));
glsafe(glTexBuffer(GL_TEXTURE_BUFFER, GL_RGBA32F, m_heights_widths_angles_buf_id));
glsafe(glActiveTexture(GL_TEXTURE2));
glsafe(glBindTexture(GL_TEXTURE_BUFFER, m_colors_tex_id));
glsafe(glTexBuffer(GL_TEXTURE_BUFFER, GL_R32F, m_colors_buf_id));