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Tech ENABLE_GLBEGIN_GLEND_REMOVAL - Background rendering

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This commit is contained in:
enricoturri1966 2022-01-28 11:30:04 +01:00
parent a939d8e4c0
commit eda55701a2
6 changed files with 69 additions and 3 deletions
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45
src/slic3r/GUI/GLCanvas3D.cpp
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@ -72,10 +72,17 @@
static constexpr const float TRACKBALLSIZE = 0.8f;
#if ENABLE_GLBEGIN_GLEND_REMOVAL
static const Slic3r::ColorRGBA DEFAULT_BG_DARK_COLOR = { 0.478f, 0.478f, 0.478f, 1.0f };
static const Slic3r::ColorRGBA DEFAULT_BG_LIGHT_COLOR = { 0.753f, 0.753f, 0.753f, 1.0f };
static const Slic3r::ColorRGBA ERROR_BG_DARK_COLOR = { 0.478f, 0.192f, 0.039f, 1.0f };
static const Slic3r::ColorRGBA ERROR_BG_LIGHT_COLOR = { 0.753f, 0.192f, 0.039f, 1.0f };
#else
static const Slic3r::ColorRGB DEFAULT_BG_DARK_COLOR = { 0.478f, 0.478f, 0.478f };
static const Slic3r::ColorRGB DEFAULT_BG_LIGHT_COLOR = { 0.753f, 0.753f, 0.753f };
static const Slic3r::ColorRGB ERROR_BG_DARK_COLOR = { 0.478f, 0.192f, 0.039f };
static const Slic3r::ColorRGB ERROR_BG_LIGHT_COLOR = { 0.753f, 0.192f, 0.039f };
#endif // ENABLE_GLBEGIN_GLEND_REMOVAL
// Number of floats
static constexpr const size_t MAX_VERTEX_BUFFER_SIZE = 131072 * 6; // 3.15MB
@ -5197,7 +5204,7 @@ void GLCanvas3D::_rectangular_selection_picking_pass()
_update_volumes_hover_state();
}
void GLCanvas3D::_render_background() const
void GLCanvas3D::_render_background()
{
bool use_error_color = false;
if (wxGetApp().is_editor()) {
@ -5219,6 +5226,41 @@ void GLCanvas3D::_render_background() const
// Draws a bottom to top gradient over the complete screen.
glsafe(::glDisable(GL_DEPTH_TEST));
#if ENABLE_GLBEGIN_GLEND_REMOVAL
const ColorRGBA bottom_color = use_error_color ? ERROR_BG_DARK_COLOR : DEFAULT_BG_DARK_COLOR;
if (!m_background.is_initialized() || m_background.get_color() != bottom_color) {
m_background.reset();
GLModel::Geometry init_data;
init_data.format = { GLModel::Geometry::EPrimitiveType::Triangles, GLModel::Geometry::EVertexLayout::P2T2, GLModel::Geometry::EIndexType::USHORT };
init_data.color = bottom_color;
init_data.vertices.reserve(4 * GLModel::Geometry::vertex_stride_floats(init_data.format));
init_data.indices.reserve(6 * GLModel::Geometry::index_stride_bytes(init_data.format));
// vertices
init_data.add_vertex(Vec2f(-1.0f, -1.0f), Vec2f(0.0f, 0.0f));
init_data.add_vertex(Vec2f(1.0f, -1.0f), Vec2f(1.0f, 0.0f));
init_data.add_vertex(Vec2f(1.0f, 1.0f), Vec2f(1.0f, 1.0f));
init_data.add_vertex(Vec2f(-1.0f, 1.0f), Vec2f(0.0f, 1.0f));
// indices
init_data.add_ushort_triangle(0, 1, 2);
init_data.add_ushort_triangle(2, 3, 0);
m_background.init_from(std::move(init_data));
}
GLShaderProgram* shader = wxGetApp().get_shader("background");
if (shader != nullptr) {
shader->start_using();
shader->set_uniform("top_color", use_error_color ? ERROR_BG_LIGHT_COLOR : DEFAULT_BG_LIGHT_COLOR);
shader->set_uniform("bottom_color", bottom_color);
m_background.render();
shader->stop_using();
}
#else
::glBegin(GL_QUADS);
::glColor3fv(use_error_color ? ERROR_BG_DARK_COLOR.data(): DEFAULT_BG_DARK_COLOR.data());
::glVertex2f(-1.0f, -1.0f);
@ -5228,6 +5270,7 @@ void GLCanvas3D::_render_background() const
::glVertex2f(1.0f, 1.0f);
::glVertex2f(-1.0f, 1.0f);
glsafe(::glEnd());
#endif // ENABLE_GLBEGIN_GLEND_REMOVAL
glsafe(::glEnable(GL_DEPTH_TEST));