public void Render(DeviceContext context, Int2 screenResolution, UILineInstance[] lines, int start, int count)
{
//This assumes that rasterizer, blend, and depth states have been set appropriately for screenspace transparent rendering.
context.InputAssembler.InputLayout = null;
context.InputAssembler.SetIndexBuffer(indices);
context.InputAssembler.PrimitiveTopology = SharpDX.Direct3D.PrimitiveTopology.TriangleList;
context.VertexShader.Set(vertexShader);
context.VertexShader.SetConstantBuffer(0, vertexConstants.Buffer);
context.VertexShader.SetShaderResource(0, instances.SRV);
var vertexConstantsData = new VertexConstants
{
//The packed minimum must permit subpixel locations. So, distribute the range 0 to 65535 over the pixel range 0 to resolution.
PackedToScreenScale = new Vector2(screenResolution.X / 65535f, screenResolution.Y / 65535f),
ScreenToNDCScale = new Vector2(2f / screenResolution.X, -2f / screenResolution.Y),
};
vertexConstants.Update(context, ref vertexConstantsData);
context.PixelShader.Set(pixelShader);
while (count > 0)
{
var batchCount = Math.Min(instances.Capacity, count);
instances.Update(context, lines, batchCount, start);
context.DrawIndexed(batchCount * 6, 0, 0);
count -= batchCount;
start += batchCount;
}
}
public void Render(DeviceContext context, Camera camera, Int2 resolution, LineInstance[] instances, int start, int count)
{
var vertexConstantsData = new VertexConstants
{
ViewProjection = Matrix.Transpose(camera.ViewProjection), //compensate for the shader packing.
NDCToScreenScale = new Vector2(resolution.X / 2f, resolution.Y / 2f),
CameraForward = camera.Forward,
TanAnglePerPixel = (float)Math.Tan(camera.FieldOfView / resolution.Y),
CameraRight = camera.Right,
CameraPosition = camera.Position,
};
vertexConstants.Update(context, ref vertexConstantsData);
//This assumes that render states have been set appropriately for opaque rendering.
context.InputAssembler.InputLayout = null;
context.InputAssembler.SetIndexBuffer(indices);
context.InputAssembler.PrimitiveTopology = SharpDX.Direct3D.PrimitiveTopology.TriangleList;
context.VertexShader.Set(vertexShader);
context.VertexShader.SetConstantBuffer(0, vertexConstants.Buffer);
context.VertexShader.SetShaderResource(0, this.instances.SRV);
context.PixelShader.Set(pixelShader);
while (count > 0)
{
var batchCount = Math.Min(this.instances.Capacity, count);
this.instances.Update(context, instances, batchCount, start);
context.DrawIndexed(batchCount * 36, 0, 0);
count -= batchCount;
start += batchCount;
}
}
public void Render(DeviceContext context, Font font, Int2 screenResolution, Span <GlyphInstance> glyphs)
{
var vertexConstantsData = new VertexConstants
{
//These first two scales could be uploaded once, but it would require another buffer. Not important enough.
//The packed minimum must permit subpixel locations. So, distribute the range 0 to 65535 over the pixel range 0 to resolution.
PackedToScreenScale = new Vector2(screenResolution.X / 65535f, screenResolution.Y / 65535f),
ScreenToNDCScale = new Vector2(2f / screenResolution.X, -2f / screenResolution.Y),
InverseAtlasResolution = new Vector2(1f / font.Content.Atlas.Width, 1f / font.Content.Atlas.Height)
};
vertexConstants.Update(context, ref vertexConstantsData);
context.VertexShader.SetShaderResource(1, font.Sources.SRV);
context.PixelShader.SetShaderResource(0, font.AtlasSRV);
var count = glyphs.Length;
var start = 0;
while (count > 0)
{
var batchCount = Math.Min(instances.Capacity, count);
instances.Update(context, glyphs.Slice(start, batchCount));
context.DrawIndexed(batchCount * 6, 0, 0);
count -= batchCount;
start += batchCount;
}
}
public void Render(Font font, Int2 screenResolution, Span <GlyphInstance> glyphs)
{
font.Sources.Bind(1);
GL.BindTexture(TextureTarget.Texture2D, font.Atlas);
var vertexConstantsData = new VertexConstants {
//These first two scales could be uploaded once, but it would require another buffer. Not important enough.
//The packed minimum must permit subpixel locations. So, distribute the range 0 to 65535 over the pixel range 0 to resolution.
PackedToScreenScale = new Vector2(screenResolution.X / 65535f, screenResolution.Y / 65535f),
ScreenToNDCScale = new Vector2(2f / screenResolution.X, -2f / screenResolution.Y),
InverseAtlasResolution = new Vector2(1f / font.Content.Atlas.Width, 1f / font.Content.Atlas.Height)
};
vertexConstants.Update(ref vertexConstantsData);
var count = glyphs.Length;
var start = 0;
while (count > 0)
{
var batchCount = Math.Min(instances.Capacity, count);
instances.Update(glyphs.Slice(start, batchCount));
GL.DrawElements(PrimitiveType.Triangles, batchCount * 6, indices.Type, 0);
count -= batchCount;
start += batchCount;
}
}
public void Render(DeviceContext context, Camera camera, Int2 screenResolution, BoxInstance[] instances, int start, int count)
{
var vertexConstantsData = new VertexConstants
{
Projection = Matrix.Transpose(camera.Projection), //compensate for the shader packing.
CameraPosition = camera.Position,
CameraRight = camera.Right,
CameraUp = camera.Up,
CameraBackward = camera.Backward,
};
vertexConstants.Update(context, ref vertexConstantsData);
//This assumes that render states have been set appropriately for opaque rendering.
context.InputAssembler.InputLayout = null;
context.InputAssembler.SetIndexBuffer(indices);
context.InputAssembler.PrimitiveTopology = SharpDX.Direct3D.PrimitiveTopology.TriangleList;
context.VertexShader.Set(vertexShader);
context.VertexShader.SetConstantBuffer(0, vertexConstants.Buffer);
context.VertexShader.SetShaderResource(0, this.instances.SRV);
context.PixelShader.Set(pixelShader);
while (count > 0)
{
var batchCount = Math.Min(this.instances.Capacity, count);
this.instances.Update(context, instances, batchCount, start);
context.DrawIndexed(batchCount * 36, 0, 0);
count -= batchCount;
start += batchCount;
}
}
