mirror of
https://github.com/Kbz-8/42_vox.git
synced 2026-01-11 14:43:34 +00:00
566 lines
15 KiB
C++
566 lines
15 KiB
C++
#include <Graphics/MeshFactory.h>
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#include <Graphics/Mesh.h>
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#include <Renderer/Vertex.h>
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#include <Maths/Constants.h>
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#include <Maths/Quaternions.h>
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#include <cmath>
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#include <vector>
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namespace Scop
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{
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std::shared_ptr<Mesh> CreateQuad(float x, float y, float width, float height)
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{
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std::vector<Vertex> data(4);
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data[0].position = Vec4f(x, y, 0.0f, 1.0f);
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data[0].uv = Vec2f(1.0f, 1.0f);
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data[1].position = Vec4f(x + width, y, 0.0f, 1.0f);
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data[1].uv = Vec2f(0.0f, 1.0f);
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data[2].position = Vec4f(x + width, y + height, 0.0f, 1.0f);
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data[2].uv = Vec2f(0.0f, 0.0f);
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data[3].position = Vec4f(x, y + height, 0.0f, 1.0f);
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data[3].uv = Vec2f(1.0f, 0.0f);
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std::vector<std::uint32_t> indices = {
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0,
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1,
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2,
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2,
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3,
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0,
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};
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std::shared_ptr<Mesh> mesh = std::make_shared<Mesh>();
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mesh->AddSubMesh({ std::move(data), std::move(indices) });
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return mesh;
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}
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std::shared_ptr<Mesh> CreateQuad(const Vec2f& position, const Vec2f& size)
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{
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return CreateQuad(position.x, position.y, size.x, size.y);
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}
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std::shared_ptr<Mesh> CreateQuad()
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{
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std::vector<Vertex> data(4);
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data[0].position = Vec4f(-1.0f, -1.0f, 0.0f, 1.0f);
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data[0].uv = Vec2f(0.0f, 0.0f);
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data[0].color = Vec4f(1.0f);
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data[1].position = Vec4f(1.0f, -1.0f, 0.0f, 1.0f);
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data[1].color = Vec4f(1.0f);
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data[1].uv = Vec2f(1.0f, 0.0f);
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data[2].position = Vec4f(1.0f, 1.0f, 0.0f, 1.0f);
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data[2].color = Vec4f(1.0f);
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data[2].uv = Vec2f(1.0f, 1.0f);
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data[3].position = Vec4f(-1.0f, 1.0f, 0.0f, 1.0f);
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data[3].color = Vec4f(1.0f);
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data[3].uv = Vec2f(0.0f, 1.0f);
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std::vector<std::uint32_t> indices = {
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0,
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1,
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2,
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2,
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3,
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0,
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};
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std::shared_ptr<Mesh> mesh = std::make_shared<Mesh>();
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mesh->AddSubMesh({ std::move(data), std::move(indices) });
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return mesh;
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}
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std::shared_ptr<Mesh> CreateCube()
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{
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// v6----- v5
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// /| /|
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// v1------v0|
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// | | | |
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// | |v7---|-|v4
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// |/ |/
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// v2------v3
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std::vector<Vertex> data(24);
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data[0].position = Vec4f(1.0f, 1.0f, 1.0f, 1.0f);
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data[0].color = Vec4f(1.0f);
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data[0].normal = Vec4f(0.0f, 0.0f, 1.0f, 1.0f);
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data[1].position = Vec4f(-1.0f, 1.0f, 1.0f, 1.0f);
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data[1].color = Vec4f(1.0f);
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data[1].normal = Vec4f(0.0f, 0.0f, 1.0f, 1.0f);
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data[2].position = Vec4f(-1.0f, -1.0f, 1.0f, 1.0f);
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data[2].color = Vec4f(1.0f);
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data[2].normal = Vec4f(0.0f, 0.0f, 1.0f, 1.0f);
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data[3].position = Vec4f(1.0f, -1.0f, 1.0f, 1.0f);
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data[3].color = Vec4f(1.0f);
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data[3].normal = Vec4f(0.0f, 0.0f, 1.0f, 1.0f);
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data[4].position = Vec4f(1.0f, 1.0f, 1.0f, 1.0f);
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data[4].color = Vec4f(1.0f);
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data[4].normal = Vec4f(1.0f, 0.0f, 0.0f, 1.0f);
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data[5].position = Vec4f(1.0f, -1.0f, 1.0f, 1.0f);
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data[5].color = Vec4f(1.0f);
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data[5].normal = Vec4f(1.0f, 0.0f, 0.0f, 1.0f);
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data[6].position = Vec4f(1.0f, -1.0f, -1.0f, 1.0f);
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data[6].color = Vec4f(1.0f);
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data[6].normal = Vec4f(1.0f, 0.0f, 0.0f, 1.0f);
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data[7].position = Vec4f(1.0f, 1.0f, -1.0f, 1.0f);
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data[7].color = Vec4f(1.0f);
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data[7].normal = Vec4f(1.0f, 0.0f, 0.0f, 1.0f);
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data[8].position = Vec4f(1.0f, 1.0f, 1.0f, 1.0f);
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data[8].color = Vec4f(1.0f);
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data[8].normal = Vec4f(0.0f, 1.0f, 0.0f, 1.0f);
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data[9].position = Vec4f(1.0f, 1.0f, -1.0f, 1.0f);
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data[9].color = Vec4f(1.0f);
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data[9].normal = Vec4f(0.0f, 1.0f, 0.0f, 1.0f);
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data[10].position = Vec4f(-1.0f, 1.0f, -1.0f, 1.0f);
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data[10].color = Vec4f(1.0f);
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data[10].normal = Vec4f(0.0f, 1.0f, 0.0f, 1.0f);
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data[11].position = Vec4f(-1.0f, 1.0f, 1.0f, 1.0f);
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data[11].color = Vec4f(1.0f);
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data[11].normal = Vec4f(0.0f, 1.0f, 0.0f, 1.0f);
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data[12].position = Vec4f(-1.0f, 1.0f, 1.0f, 1.0f);
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data[12].color = Vec4f(1.0f);
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data[12].normal = Vec4f(-1.0f, 0.0f, 0.0f, 1.0f);
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data[13].position = Vec4f(-1.0f, 1.0f, -1.0f, 1.0f);
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data[13].color = Vec4f(1.0f);
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data[13].normal = Vec4f(-1.0f, 0.0f, 0.0f, 1.0f);
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data[14].position = Vec4f(-1.0f, -1.0f, -1.0f, 1.0f);
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data[14].color = Vec4f(1.0f);
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data[14].normal = Vec4f(-1.0f, 0.0f, 0.0f, 1.0f);
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data[15].position = Vec4f(-1.0f, -1.0f, 1.0f, 1.0f);
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data[15].color = Vec4f(1.0f);
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data[15].normal = Vec4f(-1.0f, 0.0f, 0.0f, 1.0f);
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data[16].position = Vec4f(-1.0f, -1.0f, -1.0f, 1.0f);
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data[16].color = Vec4f(1.0f);
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data[16].normal = Vec4f(0.0f, -1.0f, 0.0f, 1.0f);
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data[17].position = Vec4f(1.0f, -1.0f, -1.0f, 1.0f);
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data[17].color = Vec4f(1.0f);
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data[17].normal = Vec4f(0.0f, -1.0f, 0.0f, 1.0f);
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data[18].position = Vec4f(1.0f, -1.0f, 1.0f, 1.0f);
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data[18].color = Vec4f(1.0f);
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data[18].normal = Vec4f(0.0f, -1.0f, 0.0f, 1.0f);
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data[19].position = Vec4f(-1.0f, -1.0f, 1.0f, 1.0f);
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data[19].color = Vec4f(1.0f);
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data[19].normal = Vec4f(0.0f, -1.0f, 0.0f, 1.0f);
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data[20].position = Vec4f(1.0f, -1.0f, -1.0f, 1.0f);
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data[20].color = Vec4f(1.0f);
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data[20].normal = Vec4f(0.0f, 0.0f, -1.0f, 1.0f);
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data[21].position = Vec4f(-1.0f, -1.0f, -1.0f, 1.0f);
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data[21].color = Vec4f(1.0f);
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data[21].normal = Vec4f(0.0f, 0.0f, -1.0f, 1.0f);
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data[22].position = Vec4f(-1.0f, 1.0f, -1.0f, 1.0f);
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data[22].color = Vec4f(1.0f);
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data[22].normal = Vec4f(0.0f, 0.0f, -1.0f, 1.0f);
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data[23].position = Vec4f(1.0f, 1.0f, -1.0f, 1.0f);
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data[23].color = Vec4f(1.0f);
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data[23].normal = Vec4f(0.0f, 0.0f, -1.0f, 1.0f);
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for(int i = 0; i < 6; i++)
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{
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data[i * 4 + 0].uv = Vec2f(0.0f, 0.0f);
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data[i * 4 + 1].uv = Vec2f(1.0f, 0.0f);
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data[i * 4 + 2].uv = Vec2f(1.0f, 1.0f);
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data[i * 4 + 3].uv = Vec2f(0.0f, 1.0f);
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}
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std::vector<std::uint32_t> indices = {
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0, 1, 2, 0, 2, 3, // Right
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4, 5, 6, 4, 6, 7, // Front
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8, 9, 10, 8, 10, 11, // Top
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12, 13, 14, 12, 14, 15, // Back
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16, 17, 18, 16, 18, 19, // Bottom
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20, 21, 22, 20, 22, 23 // Left
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};
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std::shared_ptr<Mesh> mesh = std::make_shared<Mesh>();
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mesh->AddSubMesh({ std::move(data), std::move(indices) });
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return mesh;
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}
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std::shared_ptr<Mesh> CreatePyramid()
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{
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std::vector<Vertex> data(18);
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data[0].position = Vec4f(1.0f, 1.0f, -1.0f, 1.0f);
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data[0].color = Vec4f(1.0f);
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data[0].uv = Vec2f(0.24f, 0.20f);
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data[0].normal = Vec4f(0.0f, 0.8948f, 0.4464f, 1.0f);
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data[1].position = Vec4f(-1.0f, 1.0f, -1.0f, 1.0f);
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data[1].color = Vec4f(1.0f);
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data[1].uv = Vec2f(0.24f, 0.81f);
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data[1].normal = Vec4f(0.0f, 0.8948f, 0.4464f, 1.0f);
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data[2].position = Vec4f(0.0f, 0.0f, 1.0f, 1.0f);
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data[2].color = Vec4f(1.0f);
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data[2].uv = Vec2f(0.95f, 0.50f);
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data[2].normal = Vec4f(0.0f, 0.8948f, 0.4464f, 1.0f);
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data[3].position = Vec4f(-1.0f, 1.0f, -1.0f, 1.0f);
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data[3].color = Vec4f(1.0f);
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data[3].uv = Vec2f(0.24f, 0.21f);
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data[3].normal = Vec4f(-0.8948f, 0.0f, 0.4464f, 1.0f);
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data[4].position = Vec4f(-1.0f, -1.0f, -1.0f, 1.0f);
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data[4].color = Vec4f(1.0f);
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data[4].uv = Vec2f(0.24f, 0.81f);
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data[4].normal = Vec4f(-0.8948f, 0.0f, 0.4464f, 1.0f);
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data[5].position = Vec4f(0.0f, 0.0f, 1.0f, 1.0f);
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data[5].color = Vec4f(1.0f);
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data[5].uv = Vec2f(0.95f, 0.50f);
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data[5].normal = Vec4f(-0.8948f, 0.0f, 0.4464f, 1.0f);
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data[6].position = Vec4f(1.0f, 1.0f, -1.0f, 1.0f);
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data[6].color = Vec4f(1.0f);
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data[6].uv = Vec2f(0.24f, 0.81f);
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data[6].normal = Vec4f(0.8948f, 0.0f, 0.4475f, 1.0f);
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data[7].position = Vec4f(0.0f, 0.0f, 1.0f, 1.0f);
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data[7].color = Vec4f(1.0f);
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data[7].uv = Vec2f(0.95f, 0.50f);
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data[7].normal = Vec4f(0.8948f, 0.0f, 0.4475f, 1.0f);
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data[8].position = Vec4f(1.0f, -1.0f, -1.0f, 1.0f);
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data[8].color = Vec4f(1.0f);
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data[8].uv = Vec2f(0.24f, 0.21f);
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data[8].normal = Vec4f(0.8948f, 0.0f, 0.4475f, 1.0f);
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data[9].position = Vec4f(-1.0f, -1.0f, -1.0f, 1.0f);
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data[9].color = Vec4f(1.0f);
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data[9].uv = Vec2f(0.24f, 0.21f);
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data[9].normal = Vec4f(0.0f, -0.8948f, 0.448f, 1.0f);
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data[10].position = Vec4f(1.0f, -1.0f, -1.0f, 1.0f);
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data[10].color = Vec4f(1.0f);
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data[10].uv = Vec2f(0.24f, 0.81f);
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data[10].normal = Vec4f(0.0f, -0.8948f, 0.448f, 1.0f);
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data[11].position = Vec4f(0.0f, 0.0f, 1.0f, 1.0f);
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data[11].color = Vec4f(1.0f);
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data[11].uv = Vec2f(0.95f, 0.50f);
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data[11].normal = Vec4f(0.0f, -0.8948f, 0.448f, 1.0f);
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data[12].position = Vec4f(-1.0f, 1.0f, -1.0f, 1.0f);
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data[12].color = Vec4f(1.0f);
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data[12].uv = Vec2f(0.0f, 0.0f);
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data[12].normal = Vec4f(0.0f, 0.0f, -1.0f, 1.0f);
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data[13].position = Vec4f(1.0f, 1.0f, -1.0f, 1.0f);
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data[13].color = Vec4f(1.0f);
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data[13].uv = Vec2f(0.0f, 1.0f);
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data[13].normal = Vec4f(0.0f, 0.0f, -1.0f, 1.0f);
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data[14].position = Vec4f(1.0f, -1.0f, -1.0f, 1.0f);
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data[14].color = Vec4f(1.0f);
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data[14].uv = Vec2f(1.0f, 1.0f);
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data[14].normal = Vec4f(0.0f, 0.0f, -1.0f, 1.0f);
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data[15].position = Vec4f(-1.0f, -1.0f, -1.0f, 1.0f);
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data[15].color = Vec4f(1.0f);
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data[15].uv = Vec2f(0.96f, 0.0f);
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data[15].normal = Vec4f(0.0f, 0.0f, -1.0f, 1.0f);
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data[16].position = Vec4f(0.0f, 0.0f, 0.0f, 1.0f);
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data[16].color = Vec4f(1.0f);
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data[16].uv = Vec2f(0.0f, 0.0f);
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data[16].normal = Vec4f(0.0f, 0.0f, 0.0f, 1.0f);
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data[17].position = Vec4f(0.0f, 0.0f, 0.0f, 1.0f);
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data[17].color = Vec4f(1.0f);
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data[17].uv = Vec2f(0.0f, 0.0f);
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data[17].normal = Vec4f(0.0f, 0.0f, 0.0f, 1.0f);
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std::vector<std::uint32_t> indices = {
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0, 1, 2,
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3, 4, 5,
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6, 7, 8,
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9, 10, 11,
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12, 13, 14,
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15, 12, 14
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};
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std::shared_ptr<Mesh> mesh = std::make_shared<Mesh>();
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mesh->AddSubMesh({ std::move(data), std::move(indices) });
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return mesh;
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}
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std::shared_ptr<Mesh> CreateSphere(std::uint32_t x_segments, std::uint32_t y_segments)
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{
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std::vector<Vertex> data;
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float sector_count = static_cast<float>(x_segments);
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float stack_count = static_cast<float>(y_segments);
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float sector_step = 2 * Pi<float>() / sector_count;
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float stack_step = Pi<float>() / stack_count;
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float radius = 1.0f;
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for(int i = 0; i <= stack_count; ++i)
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{
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float stack_angle = Pi<float>() / 2 - i * stack_step;
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float xy = radius * std::cos(stack_angle);
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float z = radius * std::sin(stack_angle);
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for(int j = 0; j <= sector_count; ++j)
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{
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float sector_angle = j * sector_step;
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float x = xy * cosf(sector_angle);
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float y = xy * sinf(sector_angle);
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float s = static_cast<float>(j / sector_count);
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float t = static_cast<float>(i / stack_count);
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Vertex vertex;
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vertex.position = Vec4f(x, y, z, 1.0f);
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vertex.uv = Vec2f(s, t);
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vertex.normal = vertex.position.Normalize();
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data.emplace_back(vertex);
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}
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}
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std::vector<std::uint32_t> indices;
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std::uint32_t k1, k2;
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for(uint32_t i = 0; i < stack_count; ++i)
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{
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k1 = i * (static_cast<std::uint32_t>(sector_count) + 1U);
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k2 = k1 + static_cast<std::uint32_t>(sector_count) + 1U;
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for(std::uint32_t j = 0; j < sector_count; ++j, ++k1, ++k2)
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{
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if(i != 0)
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{
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indices.push_back(k1);
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indices.push_back(k2);
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indices.push_back(k1 + 1);
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}
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if(i != (stack_count - 1))
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{
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indices.push_back(k1 + 1);
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indices.push_back(k2);
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indices.push_back(k2 + 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
std::shared_ptr<Mesh> mesh = std::make_shared<Mesh>();
|
|
mesh->AddSubMesh({ std::move(data), std::move(indices) });
|
|
return mesh;
|
|
}
|
|
|
|
std::shared_ptr<Mesh> CreatePlane(float width, float height, const Vec3f& normal)
|
|
{
|
|
Vec3 vec = normal * 90.0f;
|
|
|
|
std::vector<Vertex> data(4);
|
|
|
|
data[0].position = Vec4f(-width * 0.5f, -1.0f, -height * 0.5f);
|
|
data[0].normal = normal;
|
|
data[0].uv = Vec2f(0.0f, 0.0f);
|
|
|
|
data[1].position = Vec4f(-width * 0.5f, -1.0f, height * 0.5f);
|
|
data[1].normal = normal;
|
|
data[1].uv = Vec2f(0.0f, 1.0f);
|
|
|
|
data[2].position = Vec4f(width * 0.5f, 1.0f, height * 0.5f);
|
|
data[2].normal = normal;
|
|
data[2].uv = Vec2f(1.0f, 1.0f);
|
|
|
|
data[3].position = Vec4f(width * 0.5f, 1.0f, -height * 0.5f);
|
|
data[3].normal = normal;
|
|
data[3].uv = Vec2f(1.0f, 0.0f);
|
|
|
|
std::vector<std::uint32_t> indices = { 0, 1, 2, 2, 3, 0 };
|
|
std::shared_ptr<Mesh> mesh = std::make_shared<Mesh>();
|
|
mesh->AddSubMesh({ std::move(data), std::move(indices) });
|
|
return mesh;
|
|
}
|
|
|
|
std::shared_ptr<Mesh> CreateCapsule(float radius, float mid_height, int radial_segments, int rings)
|
|
{
|
|
int i, j, prevrow, thisrow, point;
|
|
float x, y, z, u, v, w;
|
|
float onethird = 1.0f / 3.0f;
|
|
float twothirds = 2.0f / 3.0f;
|
|
|
|
std::vector<Vertex> data;
|
|
std::vector<std::uint32_t> indices;
|
|
|
|
point = 0;
|
|
|
|
/* top hemisphere */
|
|
thisrow = 0;
|
|
prevrow = 0;
|
|
for(j = 0; j <= (rings + 1); j++)
|
|
{
|
|
v = float(j);
|
|
|
|
v /= (rings + 1);
|
|
w = std::sin(0.5f * Pi<float>() * v);
|
|
y = radius * std::cos(0.5f * Pi<float>() * v);
|
|
|
|
for(i = 0; i <= radial_segments; i++)
|
|
{
|
|
u = float(i);
|
|
u /= radial_segments;
|
|
|
|
x = std::sin(u * (Pi<float>() * 2.0f));
|
|
z = std::cos(u * (Pi<float>() * 2.0f));
|
|
|
|
Vec3 p = Vec3f(x * radius * w, y, z * radius * w);
|
|
|
|
Vertex vertex;
|
|
vertex.position = Vec4f(p + Vec3f(0.0f, 0.5f * mid_height, 0.0f), 1.0f);
|
|
vertex.normal = p.Normalize();
|
|
vertex.uv = Vec2f(u, onethird * v);
|
|
data.emplace_back(vertex);
|
|
point++;
|
|
|
|
if(i > 0 && j > 0)
|
|
{
|
|
indices.push_back(thisrow + i - 1);
|
|
indices.push_back(prevrow + i);
|
|
indices.push_back(prevrow + i - 1);
|
|
|
|
indices.push_back(thisrow + i - 1);
|
|
indices.push_back(thisrow + i);
|
|
indices.push_back(prevrow + i);
|
|
};
|
|
};
|
|
|
|
prevrow = thisrow;
|
|
thisrow = point;
|
|
};
|
|
|
|
/* cylinder */
|
|
thisrow = point;
|
|
prevrow = 0;
|
|
for(j = 0; j <= (rings + 1); j++)
|
|
{
|
|
v = float(j);
|
|
v /= (rings + 1);
|
|
|
|
y = mid_height * v;
|
|
y = (mid_height * 0.5f) - y;
|
|
|
|
for(i = 0; i <= radial_segments; i++)
|
|
{
|
|
u = float(i);
|
|
u /= radial_segments;
|
|
|
|
x = std::sin(u * (Pi<float>() * 2.0f));
|
|
z = std::cos(u * (Pi<float>() * 2.0f));
|
|
|
|
Vec3 p = Vec3f(x * radius, y, z * radius);
|
|
|
|
Vertex vertex;
|
|
vertex.position = p;
|
|
// vertex.normal = Vec4f(x, z, 0.0f);
|
|
vertex.normal = Vec4f(x, 0.0f, z);
|
|
// vertex.uv = Vec2f(u, onethird + (v * onethird));
|
|
vertex.uv = Vec2f(u, v * 0.5f);
|
|
data.emplace_back(vertex);
|
|
|
|
point++;
|
|
|
|
if(i > 0 && j > 0)
|
|
{
|
|
indices.push_back(thisrow + i - 1);
|
|
indices.push_back(prevrow + i);
|
|
indices.push_back(prevrow + i - 1);
|
|
|
|
indices.push_back(thisrow + i - 1);
|
|
indices.push_back(thisrow + i);
|
|
indices.push_back(prevrow + i);
|
|
};
|
|
};
|
|
|
|
prevrow = thisrow;
|
|
thisrow = point;
|
|
};
|
|
|
|
/* bottom hemisphere */
|
|
thisrow = point;
|
|
prevrow = 0;
|
|
|
|
for(j = 0; j <= (rings + 1); j++)
|
|
{
|
|
v = float(j);
|
|
|
|
v /= (rings + 1);
|
|
v += 1.0f;
|
|
w = std::sin(0.5f * Pi<float>() * v);
|
|
y = radius * std::cos(0.5f * Pi<float>() * v);
|
|
|
|
for(i = 0; i <= radial_segments; i++)
|
|
{
|
|
float u2 = float(i);
|
|
u2 /= radial_segments;
|
|
|
|
x = std::sin(u2 * (Pi<float>() * 2.0f));
|
|
z = std::cos(u2 * (Pi<float>() * 2.0f));
|
|
|
|
Vec3 p = Vec3f(x * radius * w, y, z * radius * w);
|
|
|
|
Vertex vertex;
|
|
vertex.position = p + Vec3f(0.0f, -0.5f * mid_height, 0.0f);
|
|
vertex.normal = p.Normalize();
|
|
vertex.uv = Vec2f(u2, twothirds + ((v - 1.0f) * onethird));
|
|
data.emplace_back(vertex);
|
|
|
|
point++;
|
|
|
|
if(i > 0 && j > 0)
|
|
{
|
|
indices.push_back(thisrow + i - 1);
|
|
indices.push_back(prevrow + i);
|
|
indices.push_back(prevrow + i - 1);
|
|
|
|
indices.push_back(thisrow + i - 1);
|
|
indices.push_back(thisrow + i);
|
|
indices.push_back(prevrow + i);
|
|
};
|
|
};
|
|
|
|
prevrow = thisrow;
|
|
thisrow = point;
|
|
}
|
|
|
|
std::shared_ptr<Mesh> mesh = std::make_shared<Mesh>();
|
|
mesh->AddSubMesh({ std::move(data), std::move(indices) });
|
|
return mesh;
|
|
}
|
|
}
|