public override void Render(Scene.RenderContext context)
{
if (!Enabled)
{
return;
}
var viewProjectionMatrix = (Transform * context.Camera.ViewProjectionMatrix).ToOpenTK();
GL.UseProgram(shader.Program);
GL.UniformMatrix4(shader.GetUniformLocation("uProjectionViewMatrix"), false, ref viewProjectionMatrix);
GL.DepthMask(false);
GL.BindVertexArray(vaoHandle);
GL.DrawElements(PrimitiveType.Lines, indexCount, DrawElementsType.UnsignedInt, 0);
GL.BindVertexArray(0);
GL.DepthMask(true);
}
public static void Render(List <Request> requests, Scene.RenderContext context)
{
// Opaque: Grouped by material
if (context.RenderPass == RenderPass.Both || context.RenderPass == RenderPass.Opaque)
{
DrawBatch(requests, context);
}
// Translucent: In reverse order
if (context.RenderPass == RenderPass.Both || context.RenderPass == RenderPass.Translucent)
{
var holder = new Request[1]; // Holds the one request we render at a time
requests.Sort((a, b) => - a.DistanceFromCamera.CompareTo(b.DistanceFromCamera));
foreach (var request in requests)
{
holder[0] = request;
DrawBatch(holder, context);
}
}
}
public override void Render(Scene.RenderContext context)
{
// This node does not render itself; it uses the batching system via IRenderableMeshCollection
}
private static void DrawBatch(IEnumerable <Request> drawCalls, Scene.RenderContext context)
{
GL.Enable(EnableCap.DepthTest);
var viewProjectionMatrix = context.Camera.ViewProjectionMatrix.ToOpenTK();
var cameraPosition = context.Camera.Location.ToOpenTK();
foreach (var shaderGroup in drawCalls.GroupBy(a => a.Call.Shader))
{
var shader = shaderGroup.Key;
var uniformLocationAnimated = shader.GetUniformLocation("bAnimated");
var uniformLocationAnimationTexture = shader.GetUniformLocation("animationTexture");
var uniformLocationNumBones = shader.GetUniformLocation("fNumBones");
var uniformLocationTransform = shader.GetUniformLocation("transform");
var uniformLocationTint = shader.GetUniformLocation("m_vTintColorSceneObject");
var uniformLocationTintDrawCall = shader.GetUniformLocation("m_vTintColorDrawCall");
var uniformLocationTime = shader.GetUniformLocation("g_flTime");
GL.UseProgram(shader.Program);
GL.Uniform3(shader.GetUniformLocation("vLightPosition"), cameraPosition);
GL.Uniform3(shader.GetUniformLocation("vEyePosition"), cameraPosition);
GL.UniformMatrix4(shader.GetUniformLocation("uProjectionViewMatrix"), false, ref viewProjectionMatrix);
foreach (var materialGroup in shaderGroup.GroupBy(a => a.Call.Material))
{
var material = materialGroup.Key;
material.Render(shader);
foreach (var request in materialGroup)
{
var transformTk = request.Transform.ToOpenTK();
GL.UniformMatrix4(uniformLocationTransform, false, ref transformTk);
if (uniformLocationTime != 1)
{
GL.Uniform1(uniformLocationTime, request.Mesh.Time);
}
if (uniformLocationAnimated != -1)
{
GL.Uniform1(uniformLocationAnimated, request.Mesh.AnimationTexture.HasValue ? 1.0f : 0.0f);
}
//Push animation texture to the shader (if it supports it)
if (request.Mesh.AnimationTexture.HasValue)
{
if (uniformLocationAnimationTexture != -1)
{
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, request.Mesh.AnimationTexture.Value);
GL.Uniform1(uniformLocationAnimationTexture, 0);
}
if (uniformLocationNumBones != -1)
{
var v = (float)Math.Max(1, request.Mesh.AnimationTextureSize - 1);
GL.Uniform1(uniformLocationNumBones, v);
}
}
if (uniformLocationTint > -1)
{
var tint = request.Mesh.Tint.ToOpenTK();
GL.Uniform4(uniformLocationTint, tint);
}
if (uniformLocationTintDrawCall > -1)
{
GL.Uniform3(uniformLocationTintDrawCall, request.Call.TintColor);
}
GL.BindVertexArray(request.Call.VertexArrayObject);
GL.DrawElements(request.Call.PrimitiveType, request.Call.IndexCount, request.Call.IndexType, (IntPtr)request.Call.StartIndex);
}
material.PostRender();
}
}
GL.Disable(EnableCap.DepthTest);
}
public override void Render(Scene.RenderContext context)
{
particleRenderer.Render(context.Camera, context.RenderPass);
}