| |
|
|
| #include "MillPathLine.h" |
| #include "OpenGlWrapper.h" |
| #include "GlUtils.h" |
| #include "Shader.h" |
|
|
| namespace MillSim |
| { |
|
|
|
|
| MillPathLine::MillPathLine() |
| { |
| mVao = mVbo = 0; |
| } |
|
|
| void MillPathLine::GenerateModel() |
| { |
| mNumVerts = MillPathPointsBuffer.size(); |
| void* vbuffer = MillPathPointsBuffer.data(); |
|
|
| |
| glGenVertexArrays(1, &mVao); |
| glBindVertexArray(mVao); |
|
|
| |
| glGenBuffers(1, &mVbo); |
| glBindBuffer(GL_ARRAY_BUFFER, mVbo); |
| glBufferData(GL_ARRAY_BUFFER, mNumVerts * sizeof(MillPathPosition), vbuffer, GL_STATIC_DRAW); |
|
|
| |
| glEnableVertexAttribArray(0); |
| glVertexAttribPointer( |
| 0, |
| 3, |
| GL_FLOAT, |
| GL_FALSE, |
| sizeof(MillPathPosition), |
| (void*)offsetof(MillPathPosition, X) |
| ); |
| glEnableVertexAttribArray(1); |
| glVertexAttribIPointer( |
| 1, |
| 1, |
| GL_INT, |
| sizeof(MillPathPosition), |
| (void*)offsetof(MillPathPosition, SegmentId) |
| ); |
|
|
| |
| glBindVertexArray(0); |
| MillPathPointsBuffer.clear(); |
| } |
|
|
| void MillPathLine::Clear() |
| { |
| MillPathPointsBuffer.clear(); |
| glBindBuffer(GL_ARRAY_BUFFER, 0); |
| glBindVertexArray(0); |
| GLDELETE_BUFFER(mVbo); |
| GLDELETE_VERTEXARRAY(mVao); |
| } |
|
|
| void MillPathLine::Render() |
| { |
| glBindVertexArray(mVao); |
| glDrawArrays(GL_LINE_STRIP, 0, mNumVerts); |
| } |
|
|
| } |
|
|
