public void Draw(ref GameWorldTime worldTime, ref Shader shader, ref Camera camera, ref Matrix4 transform, Vector3 scale, bool fixedModel = false)
{
var viewMatrix = camera.ViewMatrix;
if (fixedModel)
{
viewMatrix.Row3 = new Vector4(0, 0, 0, viewMatrix.Row3.W);
}
var projMatrix = camera.ProjectionMatrix;
Draw(ref worldTime, ref shader, ref viewMatrix, ref projMatrix, ref transform, scale);
}
public void Initialize(int width, int height)
{
WorldTime = new GameWorldTime();
camera = new Camera(new Vector3(0.0f, 0.0f, 1.0f));
camera.Create(width, height);
camera.Update(0.0);
PreloadModels();
Models.Add(new Models.Terrain(512, 512), Functions.CreateTransformationMatrix(
new Vector3(0.0f, 0.0f, 0.0f), new Vector3(0.0f), new Vector3(1.0f)));
skyBox = new Models.SkyBox(256);
}
public void Draw(ref GameWorldTime worldTime, ref Camera camera)
{
foreach (var instance in Instances)
{
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
if (instance.Value.Count > 1)
{
instance.Key.VertexArray.Bind();
instance.Key.Texture.Bind();
instance.Key.Shader.Use();
instance.Key.Shader.Set_Mat4("projMatrix", camera.ProjectionMatrix);
instance.Key.Shader.Set_Mat4("viewMatrix", camera.ViewMatrix);
instance.Key.VertexArray.Instanced = instance.Value.Count > 1;
for (var i = 0; i < instance.Value.Count; i++)
{
if (instance.Key.VertexArray.Instanced)
{
instance.Key.Shader.Set_Mat4(string.Format("modelMatrix[{0}]", i), instance.Value[i]);
}
}
GL.DrawElementsInstanced(PrimitiveType.Triangles, instance.Key.VertexArray.IndexBuffer.Elements,
DrawElementsType.UnsignedInt, IntPtr.Zero, instance.Value.Count);
instance.Key.Shader.Unuse();
instance.Key.Texture.UnBind();
instance.Key.VertexArray.UnBind();
}
else
{
instance.Key.Draw(ref worldTime, ref camera);
}
GL.Disable(EnableCap.Blend);
}
}
private void Draw(ref GameWorldTime worldTime, ref Shader shader, ref Matrix4 viewMatrix, ref Matrix4 projectionMatrix, ref Matrix4 transform, Vector3 scale)
{
var indicesCount = 0;
if (IndexBuffer != null)
{
indicesCount = IndexBuffer.Elements;
}
if (VerticeCount == 0)
{
return;
}
Bind();
shader.Use();
shader.Set_Vec3("Scale", ref scale);
shader.Set_Vec1("AmbientStrength", ref worldTime.AmbientStrength);
shader.Set_Vec3("LightColor", ref worldTime.LightColor);
shader.Set_Mat4("projMatrix", projectionMatrix);
shader.Set_Mat4("viewMatrix", viewMatrix);
shader.Set_Mat4("modelMatrix", transform);
if (indicesCount == 0)
{
GL.DrawArrays(PrimitiveType.Triangles, 0, VerticeCount);
}
else
{
GL.DrawElements(PrimitiveType.Triangles, indicesCount, DrawElementsType.UnsignedInt, 0);
}
shader.Unuse();
UnBind();
}
public virtual void Draw(ref GameWorldTime worldTime, ref Camera camera, bool staticObject = false)
{
Texture.Bind();
VertexArray.Draw(ref worldTime, ref Shader, ref camera, ref ModelMatrix, Scale, staticObject);
Texture.UnBind();
}