diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/wireframe-mesh.cpp | 29 | ||||
| -rw-r--r-- | src/wireframe-mesh.hpp | 17 |
2 files changed, 31 insertions, 15 deletions
diff --git a/src/wireframe-mesh.cpp b/src/wireframe-mesh.cpp index 14af4a15..1332c682 100644 --- a/src/wireframe-mesh.cpp +++ b/src/wireframe-mesh.cpp @@ -1,13 +1,14 @@ #include "wireframe-mesh.hpp" #include "shaders/tile-shader.hpp" +#include "tile-atlas.hpp" #include <Corrade/Containers/Array.h> -#include <Magnum/ImageView.h> #include <Magnum/GL/Renderer.h> #include <Magnum/GL/TextureFormat.h> +#include <Magnum/ImageFlags.h> +#include <Magnum/ImageView.h> #include <Magnum/PixelFormat.h> #include <Magnum/PixelStorage.h> #include <Magnum/Trade/ImageData.h> -#include <Magnum/ImageFlags.h> namespace Magnum::Examples::wireframe { @@ -30,15 +31,23 @@ GL::RectangleTexture wireframe::null::make_constant_texture() quad::vertex_array quad::make_vertex_array() const { +#if 0 constexpr auto X = TILE_SIZE[0], Y = TILE_SIZE[1]; constexpr float Z = 0; - vertex_array ret = {{ + return {{ { -X + center[0], -Y + center[1], Z + center[2] }, { X + center[0], -Y + center[1], Z + center[2] }, { X + center[0], Y + center[1], Z + center[2] }, { -X + center[0], Y + center[1], Z + center[2] }, }}; - return ret; +#else + return tile_atlas::floor_quad(center, {TILE_SIZE[0], TILE_SIZE[1]}); +#endif +} + +quad::index_array quad::make_index_array() +{ + return tile_atlas::indices(0); } quad::quad(Vector3 center, Vector2 size) : center(center), size(size) {} @@ -49,18 +58,18 @@ namespace Magnum::Examples { template <wireframe::traits T> wireframe_mesh<T>::wireframe_mesh() { - _mesh.setCount((int)T::num_vertices) - .setPrimitive(T::primitive) + _mesh.setCount((int)T::num_indexes) .addVertexBuffer(_texcoords_buffer, 0, tile_shader::TextureCoordinates{}) - .addVertexBuffer(_vertex_buffer, 0, tile_shader::Position{}); - CORRADE_INTERNAL_ASSERT(!_mesh.isIndexed()); + .addVertexBuffer(_vertex_buffer, 0, tile_shader::Position{}) + .setIndexBuffer(_index_buffer, 0, GL::MeshIndexType::UnsignedShort); } template <wireframe::traits T> void wireframe_mesh<T>::draw(tile_shader& shader, T x) { GL::Renderer::setLineWidth(2); - _vertex_buffer.setData(x.make_vertex_array(), GL::BufferUsage::DynamicDraw); - //_texture.bind(0); + _vertex_buffer.setSubData(0, x.make_vertex_array()); + _index_buffer.setSubData(0, x.make_index_array()); + _texture.bind(0); shader.draw(_mesh); } diff --git a/src/wireframe-mesh.hpp b/src/wireframe-mesh.hpp index 7a6892c2..2a7cf10c 100644 --- a/src/wireframe-mesh.hpp +++ b/src/wireframe-mesh.hpp @@ -1,6 +1,5 @@ #pragma once -#include "tile-atlas.hpp" #include "tile-defs.hpp" #include <array> #include <utility> @@ -20,16 +19,19 @@ namespace wireframe template<typename T> concept traits = requires (const T& x) { {T::num_vertices} -> std::convertible_to<std::size_t>; + {T::num_indexes} -> std::convertible_to<std::size_t>; {x.primitive} -> std::convertible_to<GL::MeshPrimitive>; {x.make_vertex_array() } -> std::same_as<std::array<Vector3, T::num_vertices>>; + {x.make_index_array() } -> std::same_as<std::array<UnsignedShort, T::num_indexes>>; }; struct null final { static constexpr auto primitive = GL::MeshPrimitive::Triangles; - static constexpr std::size_t num_vertices = 0; + static constexpr std::size_t num_vertices = 0, num_indexes = 0; static GL::RectangleTexture make_constant_texture(); static std::array<Vector3, 0> make_vertex_array() { return {}; } + static std::array<UnsignedShort, 0> make_index_array() { return {}; } }; struct quad final @@ -37,11 +39,14 @@ struct quad final quad(Vector3 center, Vector2 size); constexpr quad() = default; - static constexpr std::size_t num_vertices = 4; - static constexpr GL::MeshPrimitive primitive = GL::MeshPrimitive::LineLoop; + static constexpr std::size_t num_vertices = 4, num_indexes = 6; + static constexpr GL::MeshPrimitive primitive = GL::MeshPrimitive::Triangles; using vertex_array = std::array<Vector3, num_vertices>; + using index_array = std::array<UnsignedShort, num_indexes>; + vertex_array make_vertex_array() const; + static index_array make_index_array() ; private: Vector3 center = {}; @@ -57,7 +62,9 @@ struct wireframe_mesh final void draw(tile_shader& shader, T traits); private: - GL::Buffer _vertex_buffer{std::array<Vector3, T::num_vertices>{}}, _texcoords_buffer{std::array<Vector2, T::num_vertices>{}}; + GL::Buffer _vertex_buffer{std::array<Vector3, T::num_vertices>{}, GL::BufferUsage::DynamicDraw}, + _texcoords_buffer{std::array<Vector2, T::num_vertices>{}, GL::BufferUsage::DynamicDraw}, + _index_buffer{std::array<UnsignedShort , T::num_indexes>{}, GL::BufferUsage::DynamicDraw}; GL::RectangleTexture _texture = wireframe::null::make_constant_texture(); GL::Mesh _mesh; }; |