本文整理汇总了C++中Mat4x4::CreateRotationY方法的典型用法代码示例。如果您正苦于以下问题：C++ Mat4x4::CreateRotationY方法的具体用法？C++ Mat4x4::CreateRotationY怎么用？C++ Mat4x4::CreateRotationY使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Mat4x4的用法示例。
在下文中一共展示了Mat4x4::CreateRotationY方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: VertexBuffer
GrassPack::GrassPack( const Vec & center, const AREAL r32HalfWidth, const AREAL r32HalfHeight,
const AINT32 & num)
{
const AREAL size_x = 0.5f;
const AREAL size_y = 0.7f;
m_worldTransform = Mat4x4::Identity().CreateTranslation(center);
m_pVertices = new VertexBuffer();
m_pTexCoords = new VertexBuffer();
m_pNormals = new VertexBuffer();
m_pMaterial = new Material();
m_pShaders = new ShaderBunch();
//Initialize vertex buffers
BufferParams params;
params.FillVertexBufferParams(sizeof(float3), 18 * num, true, false, false, false);
SubresourceData data;
#pragma region Vertex buffers
float3* pos = new float3[18 * num];
float2* texCoords = new float2[18 * num];
float3* normals = new float3[18 * num];
//calculate grass quad offsets
Mat4x4 rotCW = Mat4x4::Identity();
Mat4x4 rotCCW = Mat4x4::Identity();
rotCW = rotCW.CreateRotationY(Pi / 4.0);
rotCCW = rotCCW.CreateRotationY(-Pi / 4.0);
Vec leftTopVec = Vector(-size_x, size_y, 0.0f, 0.0f);
Vec rightTopVec = Vector(size_x, size_y, 0.0f, 0.0f);
Vec leftBottomVec = Vector(-size_x, -size_y, 0.0f, 0.0f);
Vec rightBottomVec = Vector(size_x, -size_y, 0.0f, 0.0f);
float3 leftTop1 = float3(leftTopVec);
float3 rightTop1 = float3(rightTopVec);
float3 leftBottom1 = float3(leftBottomVec);
float3 rightBottom1 = float3(rightBottomVec);
float3 leftTop2 = float3(leftTopVec * rotCW);
float3 rightTop2 = float3(rightTopVec * rotCW);
float3 leftBottom2 = float3(leftBottomVec * rotCW);
float3 rightBottom2 = float3(rightBottomVec * rotCW);
float3 leftTop3 = float3(leftTopVec * rotCCW);
float3 rightTop3 = float3(rightTopVec * rotCCW);
float3 leftBottom3 = float3(leftBottomVec * rotCCW);
float3 rightBottom3 = float3(rightBottomVec * rotCCW);
float3 normal = leftTop1 - leftBottom1;
AINT32 numWidth = num / (AREAL)(r32HalfHeight + r32HalfHeight);
AREAL stepWidth = (r32HalfWidth * 2) / (AREAL)numWidth;
AINT32 numHeight = num / numWidth;
AREAL stepHeight = (r32HalfHeight * 2) / (AREAL)numHeight;
for (AINT32 i = 0; i < num; i++)
{
///////////////////////////////////////////////////
//Calculate block center position
//AINT32 x = Random(-r32HalfWidth, r32HalfWidth);
//AINT32 y = Random(-r32HalfHeight, r32HalfHeight);
AREAL x = (i % numWidth) * stepWidth;
AREAL z = (i / numWidth) * stepHeight;
float3 blockCenter = float3(getx(center) + x, gety(center), getz(center) + z);
///////////////////////////////////////////////////
//Calculate invidual vertex data for each block
//first block
pos[i*18] = blockCenter + leftTop1;
pos[i*18+1] = blockCenter + rightTop1;
pos[i*18+2] = blockCenter + leftBottom1;
pos[i*18+3] = blockCenter + leftBottom1;
pos[i*18+4] = blockCenter + rightTop1;
pos[i*18+5] = blockCenter + rightBottom1;
texCoords[i*18] = float2(0.0f, 0.0f);
texCoords[i*18+1] = float2(1.0f, 0.0f);
texCoords[i*18+2] = float2(0.0f, 1.0f);
texCoords[i*18+3] = float2(0.0f, 1.0f);
texCoords[i*18+4] = float2(1.0f, 0.0f);
texCoords[i*18+5] = float2(1.0f, 1.0f);
normals[i*18] = normal;
normals[i*18+1] = normal;
normals[i*18+2] = normal;
normals[i*18+3] = normal;
normals[i*18+4] = normal;
normals[i*18+5] = normal;
//second block
pos[i*18+6] = blockCenter + leftTop2;
pos[i*18+7] = blockCenter + rightTop2;
pos[i*18+8] = blockCenter + leftBottom2;
pos[i*18+9] = blockCenter + leftBottom2;
pos[i*18+10] = blockCenter + rightTop2;
pos[i*18+11] = blockCenter + rightBottom2;
//.........这里部分代码省略.........