public int createEmitter()
{
ParticleResourceModel resMd = new ParticleResourceModel();
md.lstResource.Add(resMd);
int idx = lstVM.Count;
if (idx > 0)
{
lstVM[idx - 1].IsLast = false;
}
ParticleEditVM vm = new ParticleEditVM()
{
idx = idx,
md = resMd,
Image = null,
IsLast = true
};
lstVM.Add(vm);
return(idx);
}
public ParticleEmitter(ParticleResourceModel _md, int _maxRenderTime)
{
md = _md;
//zIndex = _zIndex;
maxRenderTime = _maxRenderTime;
attrBufferId = Gl.GenBuffer();
//bufferId = Gl.GenVertexArray();
texId = Gl.GenTexture();
//texFraBufferId = Gl.GenFramebuffer();
string[] vetex = ComUtil.loadEmbedShader("vParticleEmitter.glsl");
string[] fragment = ComUtil.loadEmbedShader("fParticleEmitter.glsl");
using (GlObject vObject = new GlObject(ShaderType.VertexShader, vetex))
using (GlObject fObject = new GlObject(ShaderType.FragmentShader, fragment)) {
// Create program
ProgramName = Gl.CreateProgram();
// Attach shaders
Gl.AttachShader(ProgramName, vObject.ShaderName);
Gl.AttachShader(ProgramName, fObject.ShaderName);
// Link program
Gl.LinkProgram(ProgramName);
// Check linkage status
Gl.GetProgram(ProgramName, ProgramProperty.LinkStatus, out int linked);
if (linked == 0)
{
const int logMaxLength = 1024;
StringBuilder infolog = new StringBuilder(logMaxLength);
int infologLength;
Gl.GetProgramInfoLog(ProgramName, 1024, out infologLength, infolog);
throw new InvalidOperationException($"unable to link program: {infolog}");
}
LocationMVP = getUniformId("uMVP");
LocationIndex = getAttrId("index");
LocationCoord = getAttrId("vCoord");
LocationTex = getUniformId("tex");
LocationNowTime = getUniformId("nowTime");
//LocationZIndex = getUniformId("zIndex");
LocationTotalLifeTime = getUniformId("totalLifeTime");
LocationParticleCount = getUniformId("particleCount");
LocationStartPos = getUniformId("startPos");
}
updateImage();
updateAttr();
}