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Quads

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This commit is contained in:
Confideo-IOM
2026-09-04 22:07:16 +01:00
parent 18ec2d5394
commit d76df7f61b
18 changed files with 44 additions and 58 deletions
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HydraEngine/source/actor/PlanetActor/HydraPlanetQuadActor.cpp
+29 -29
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@@ -52,32 +52,29 @@ void HydraPlanetQuadActor::_CreateMesh()
HydraMesh *mesh = mesh_manager->GetMesh(mesh_id);
HydraMaterialComponent mat_comp = GetEngine()->ECS()->GetComponent<HydraMaterialComponent>(GetID());
uint32_t vert_counts = m_divisions * m_divisions;
uint32_t index_counts = ((m_divisions - 1) * (m_divisions -1)) * 6;
mesh->vertexes.resize(vert_counts);
mesh->indexes.resize(index_counts);
float scale_x = 10000.0f;
float scale_y = 10000.0f;
float scale_z = 10000.0f;
float min_x = -m_quad_dimension / 2.0f;
float min_y = m_quad_dimension / 2.0f;
float min_y = -m_quad_dimension / 2.0f;
float min_z = 0.0f;
float max_x = -m_quad_dimension / 2.0f;
float max_x = m_quad_dimension / 2.0f;
float max_y = m_quad_dimension / 2.0f;
float max_z = 0.0f;
float min_u = 100;
float min_v = 100;
float min_u = 0;
float min_v = 1;
float max_u = 0;
float max_u = 1;
float max_v = 0;
float xy_inc = m_quad_dimension / m_divisions;
float uv_inc = -min_u / m_divisions;
float u_inc = max_u / (m_divisions-1);
float v_inc = -min_v / (m_divisions-1);
// 1---2
// | / |
@@ -89,45 +86,48 @@ void HydraPlanetQuadActor::_CreateMesh()
float u = min_u;
float v = min_v;
uint32_t vert_idx =0;
uint32_t vert_idx = 0;
uint32_t index_idx = 0;
for(uint32_t y_count = 0; y_count < m_divisions - 1; y_count ++)
{
for(uint32_t x_count = 0; x_count < m_divisions - 1; x_count ++)
{
//Create Vertex
mesh->vertexes[vert_idx] = {x, y, min_z, min_u, min_v, actor_id, mat_comp.material_id, 0};
uint32_t ind0 = vert_idx + m_divisions;
uint32_t ind1 = vert_idx;
uint32_t ind2 = vert_idx + 1;
uint32_t ind3 = vert_idx + m_divisions + 1;
mesh->vertexes[vert_idx] = {x, y, min_z, u, v, actor_id, mat_comp.material_id, 0};
uint32_t ind0 = vert_idx;
uint32_t ind1 = vert_idx + m_divisions;
uint32_t ind2 = vert_idx + m_divisions + 1;
uint32_t ind3 = vert_idx + 1;
mesh->indexes[index_idx + 0] = ind0;
mesh->indexes[index_idx + 1] = ind1;
mesh->indexes[index_idx + 2] = ind2;
mesh->indexes[index_idx + 1] = ind2;
mesh->indexes[index_idx + 2] = ind1;
mesh->indexes[index_idx + 3] = ind0;
mesh->indexes[index_idx + 4] = ind2;
mesh->indexes[index_idx + 5] = ind3;
mesh->indexes[index_idx + 4] = ind3;
mesh->indexes[index_idx + 5] = ind2;
x += xy_inc;
u += uv_inc;
u += u_inc;
vert_idx++;
index_idx ++;
index_idx += 6;
}
//Add the end vert but no indexes
mesh->vertexes[vert_idx] = {x, y, min_z, min_u, min_v, actor_id, mat_comp.material_id, 0};
mesh->vertexes[vert_idx] = {x, y, min_z, u, v, actor_id, mat_comp.material_id, 0};
vert_idx++;
y += xy_inc;
v += uv_inc;
v += v_inc;
x = min_x;
u = min_u;
}
//the last row
for(uint32_t x_count = 0; x_count < m_divisions - 1; x_count ++)
for(uint32_t x_count = 0; x_count < m_divisions; x_count ++)
{
mesh->vertexes[vert_idx] = {x, y, min_z, min_u, min_v, actor_id, mat_comp.material_id, 0};
mesh->vertexes[vert_idx] = {x, y, min_z, u, v, actor_id, mat_comp.material_id, 0};
x += xy_inc;
u += uv_inc;
u += u_inc;
vert_idx++;
}