public void Draw(StateSetGL stateSetGL)
{
stateSetGL.BackfaceCulling = BackfaceCulling;
stateSetGL.ShaderPointSize = ShaderPointSize;
stateSetGL.ZBufferTest = ZBufferTest;
stateSetGL.Shader = Shader;
BindTextures();
ActivateBuffers();
var vao = Vao;
if (ReferenceEquals(null, vao))
{
if (1 == InstanceCount)
{
GL.DrawArrays(PrimitiveType.Quads, 0, 4); //todo: make this general -> mesh with only vertex count? particle system, sprites
}
else
{
GL.DrawArrays(PrimitiveType.Points, 0, InstanceCount);
}
}
else
{
Vao.Draw(InstanceCount);
}
DeactivateBuffers();
UnbindTextures();
}
/// <summary>
/// Draws the specified context.
/// </summary>
/// <param name="context">The context.</param>
public void Draw(IRenderContext context)
{
context.RenderState.Set(new ShaderPointSize(ShaderPointSize));
context.RenderState.Set(new DepthTest(ZBufferTest));
context.RenderState.Set(new FaceCullingModeState(BackfaceCulling ? FaceCullingMode.BACK_SIDE : FaceCullingMode.NONE));
context.RenderState.Set(new ActiveShader(ShaderProgram));
BindTextures();
ActivateBuffers();
var vao = Vao;
if (vao is null)
{
if (1 == InstanceCount)
{
GL.DrawArrays(PrimitiveType.Quads, 0, 4); //TODO: make this general -> mesh with only vertex count? particle system, sprites
}
else
{
GL.DrawArrays(PrimitiveType.Points, 0, InstanceCount);
}
}
else
{
Vao.Draw(InstanceCount);
}
DeactivateBuffers();
UnbindTextures();
}
/// <summary>
/// Draws the specified context.
/// </summary>
/// <param name="context">The context.</param>
public void Draw(IRenderContext context)
{
var stateManager = context.StateManager;
context.RenderState.Set(new BoolState <IShaderPointSizeState>(ShaderPointSize));
context.RenderState.Set(new BoolState <IDepthState>(ZBufferTest));
context.RenderState.Set(new BoolState <IBackfaceCullingState>(BackfaceCulling));
stateManager.Get <StateActiveShaderGL, StateActiveShaderGL>().ShaderProgram = ShaderProgram;
BindTextures();
ActivateBuffers();
var vao = Vao;
if (vao is null)
{
if (1 == InstanceCount)
{
GL.DrawArrays(PrimitiveType.Quads, 0, 4); //TODO: make this general -> mesh with only vertex count? particle system, sprites
}
else
{
context.DrawPoints(InstanceCount);
}
}
else
{
Vao.Draw(InstanceCount);
}
DeactivateBuffers();
UnbindTextures();
}