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ADD: IBL engine side

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hydrogendeuteride
2025-11-11 21:20:34 +09:00
parent a918fc6db8
commit 24e83061b4
14 changed files with 592 additions and 85 deletions
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152
src/render/primitives.h
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@@ -4,80 +4,94 @@
#include <glm/gtc/constants.hpp>
#include "core/vk_types.h"
namespace primitives {
namespace primitives
{
inline void buildCube(std::vector<Vertex> &vertices, std::vector<uint32_t> &indices)
{
vertices.clear();
indices.clear();
inline void buildCube(std::vector<Vertex>& vertices, std::vector<uint32_t>& indices) {
vertices.clear();
indices.clear();
struct Face
{
glm::vec3 normal;
glm::vec3 v0, v1, v2, v3;
} faces[6] = {
{{0, 0, 1}, {-0.5f, -0.5f, 0.5f}, {0.5f, -0.5f, 0.5f}, {-0.5f, 0.5f, 0.5f}, {0.5f, 0.5f, 0.5f}},
{
{0, 0, -1}, {-0.5f, -0.5f, -0.5f}, {-0.5f, 0.5f, -0.5f}, {0.5f, -0.5f, -0.5f},
{0.5f, 0.5f, -0.5f}
},
{{0, 1, 0}, {-0.5f, 0.5f, 0.5f}, {0.5f, 0.5f, 0.5f}, {-0.5f, 0.5f, -0.5f}, {0.5f, 0.5f, -0.5f}},
{
{0, -1, 0}, {-0.5f, -0.5f, 0.5f}, {-0.5f, -0.5f, -0.5f}, {0.5f, -0.5f, 0.5f},
{0.5f, -0.5f, -0.5f}
},
{{1, 0, 0}, {0.5f, -0.5f, 0.5f}, {0.5f, -0.5f, -0.5f}, {0.5f, 0.5f, 0.5f}, {0.5f, 0.5f, -0.5f}},
{{-1, 0, 0}, {-0.5f, -0.5f, 0.5f}, {-0.5f, 0.5f, 0.5f}, {-0.5f, -0.5f, -0.5f}, {-0.5f, 0.5f, -0.5f}}
};
struct Face {
glm::vec3 normal;
glm::vec3 v0, v1, v2, v3;
} faces[6] = {
{ {0,0,1}, { -0.5f,-0.5f, 0.5f}, { 0.5f,-0.5f, 0.5f}, { -0.5f, 0.5f, 0.5f}, { 0.5f, 0.5f, 0.5f} },
{ {0,0,-1},{ -0.5f,-0.5f,-0.5f}, { -0.5f, 0.5f,-0.5f}, { 0.5f,-0.5f,-0.5f}, { 0.5f, 0.5f,-0.5f} },
{ {0,1,0}, { -0.5f, 0.5f, 0.5f}, { 0.5f, 0.5f, 0.5f}, { -0.5f, 0.5f,-0.5f}, { 0.5f, 0.5f,-0.5f} },
{ {0,-1,0},{ -0.5f,-0.5f, 0.5f}, { -0.5f,-0.5f,-0.5f}, { 0.5f,-0.5f, 0.5f}, { 0.5f,-0.5f,-0.5f} },
{ {1,0,0}, { 0.5f,-0.5f, 0.5f}, { 0.5f,-0.5f,-0.5f}, { 0.5f, 0.5f, 0.5f}, { 0.5f, 0.5f,-0.5f} },
{ {-1,0,0},{ -0.5f,-0.5f, 0.5f}, { -0.5f, 0.5f, 0.5f}, { -0.5f,-0.5f,-0.5f}, { -0.5f, 0.5f,-0.5f} }
};
for (auto& f : faces) {
uint32_t start = (uint32_t)vertices.size();
Vertex v0{f.v0, 0, f.normal, 0, glm::vec4(1.0f), glm::vec4(1,0,0,1)};
Vertex v1{f.v1, 1, f.normal, 0, glm::vec4(1.0f), glm::vec4(1,0,0,1)};
Vertex v2{f.v2, 0, f.normal, 1, glm::vec4(1.0f), glm::vec4(1,0,0,1)};
Vertex v3{f.v3, 1, f.normal, 1, glm::vec4(1.0f), glm::vec4(1,0,0,1)};
vertices.push_back(v0);
vertices.push_back(v1);
vertices.push_back(v2);
vertices.push_back(v3);
indices.push_back(start + 0);
indices.push_back(start + 1);
indices.push_back(start + 2);
indices.push_back(start + 2);
indices.push_back(start + 1);
indices.push_back(start + 3);
}
}
inline void buildSphere(std::vector<Vertex>& vertices, std::vector<uint32_t>& indices, int sectors = 16, int stacks = 16) {
vertices.clear();
indices.clear();
float radius = 0.5f;
for (int i = 0; i <= stacks; ++i) {
float v = (float)i / stacks;
const float phi = v * glm::pi<float>();
float y = cos(phi);
float r = sin(phi);
for (int j = 0; j <= sectors; ++j) {
float u = (float)j / sectors;
float theta = u * glm::two_pi<float>();
float x = r * cos(theta);
float z = r * sin(theta);
Vertex vert;
vert.position = glm::vec3(x, y, z) * radius;
vert.normal = glm::normalize(glm::vec3(x, y, z));
vert.uv_x = u;
vert.uv_y = 1.0f - v;
vert.color = glm::vec4(1.0f);
vert.tangent = glm::vec4(1,0,0,1);
vertices.push_back(vert);
for (auto &f: faces)
{
uint32_t start = (uint32_t) vertices.size();
Vertex v0{f.v0, 0, f.normal, 0, glm::vec4(1.0f), glm::vec4(1, 0, 0, 1)};
Vertex v1{f.v1, 1, f.normal, 0, glm::vec4(1.0f), glm::vec4(1, 0, 0, 1)};
Vertex v2{f.v2, 0, f.normal, 1, glm::vec4(1.0f), glm::vec4(1, 0, 0, 1)};
Vertex v3{f.v3, 1, f.normal, 1, glm::vec4(1.0f), glm::vec4(1, 0, 0, 1)};
vertices.push_back(v0);
vertices.push_back(v1);
vertices.push_back(v2);
vertices.push_back(v3);
indices.push_back(start + 0);
indices.push_back(start + 1);
indices.push_back(start + 2);
indices.push_back(start + 2);
indices.push_back(start + 1);
indices.push_back(start + 3);
}
}
for (int i = 0; i < stacks; ++i) {
for (int j = 0; j < sectors; ++j) {
uint32_t first = i * (sectors + 1) + j;
uint32_t second = first + sectors + 1;
indices.push_back(first);
indices.push_back(second);
indices.push_back(first + 1);
indices.push_back(first + 1);
indices.push_back(second);
indices.push_back(second + 1);
inline void buildSphere(std::vector<Vertex> &vertices, std::vector<uint32_t> &indices, int sectors = 16,
int stacks = 16)
{
vertices.clear();
indices.clear();
float radius = 0.5f;
for (int i = 0; i <= stacks; ++i)
{
float v = (float) i / stacks;
const float phi = v * glm::pi<float>();
float y = cos(phi);
float r = sin(phi);
for (int j = 0; j <= sectors; ++j)
{
float u = (float) j / sectors;
float theta = u * glm::two_pi<float>();
float x = r * cos(theta);
float z = r * sin(theta);
Vertex vert;
vert.position = glm::vec3(x, y, z) * radius;
vert.normal = glm::normalize(glm::vec3(x, y, z));
vert.uv_x = u;
vert.uv_y = 1.0f - v;
vert.color = glm::vec4(1.0f);
vert.tangent = glm::vec4(1, 0, 0, 1);
vertices.push_back(vert);
}
}
for (int i = 0; i < stacks; ++i)
{
for (int j = 0; j < sectors; ++j)
{
uint32_t first = i * (sectors + 1) + j;
uint32_t second = first + sectors + 1;
indices.push_back(first);
indices.push_back(second);
indices.push_back(first + 1);
indices.push_back(first + 1);
indices.push_back(second);
indices.push_back(second + 1);
}
}
}
}
} // namespace primitives