public void render(float[] mMVP, int renderTime)
{
if (!isTextureExist)
{
return;
}
if (particleCount <= 0)
{
return;
}
Gl.UseProgram(ProgramName);
using (MemoryLock lockIndex = new MemoryLock(_ArrayIndex))
using (MemoryLock lockCoord = new MemoryLock(_ArrayCoord)) {
//index
Gl.VertexAttribPointer((uint)LocationIndex, 2, VertexAttribType.Float, false, 0, lockIndex.Address);
Gl.EnableVertexAttribArray((uint)LocationIndex);
//cord
Gl.VertexAttribPointer((uint)LocationCoord, 2, VertexAttribType.Float, false, 0, lockCoord.Address);
Gl.EnableVertexAttribArray((uint)LocationCoord);
//MVP
Gl.UniformMatrix4(LocationMVP, false, mMVP);
//attr
Gl.BindBufferBase(BufferTarget.ShaderStorageBuffer, 0, attrBufferId);
//Gl.UnmapBuffer(BufferTarget.ShaderStorageBuffer);
Gl.Uniform1(LocationNowTime, (float)renderTime);
Gl.Uniform1(LocationTotalLifeTime, (float)maxRenderTime);
Gl.Uniform1(LocationParticleCount, particleCount);
Gl.Uniform2(LocationStartPos, arrStartPos[0], arrStartPos[1]);
//texture
Gl.BindTexture(TextureTarget.Texture2d, texId);
//Gl.GenerateMipmap(TextureTarget.Texture2d);
Gl.Uniform1(LocationTex, 0);
Gl.DrawArraysInstanced(PrimitiveType.Polygon, 0, _ArrayIndex.Length / 2, particleCount);
//Gl.DrawArraysInstanced(PrimitiveType.Points, 0, _ArrayIndex.Length / 2, particleCount);
}
Gl.BindBufferBase(BufferTarget.ShaderStorageBuffer, 0, 0);
Gl.BindTexture(TextureTarget.Texture2d, 0);
Gl.UseProgram(0);
}
