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Renders cube
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@connorh315
connorh315 committed Jul 29, 2022
1 parent 885aedf commit 09311c9
Showing 1 changed file with 64 additions and 19 deletions.
83 changes: 64 additions & 19 deletions Program.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,7 @@ static void Draw()
_commandList.SetIndexBuffer(_indexBuffer, IndexFormat.UInt16);
_commandList.SetPipeline(_pipeline);
_commandList.DrawIndexed(
indexCount: 4,
indexCount: _indexBuffer.SizeInBytes / 2,
instanceCount: 1,
indexStart: 0,
vertexOffset: 0,
Expand All @@ -91,24 +91,58 @@ static void CreateResources()
{
ResourceFactory factory = _graphicsDevice.ResourceFactory;

VertexPositionColor[] quadVertices =
VertexPositionColor[] vertices = new VertexPositionColor[]
{
new VertexPositionColor(new Vector2(-0.75f, 0.75f), RgbaFloat.Red),
new VertexPositionColor(new Vector2(0.75f, 0.75f), RgbaFloat.Green),
new VertexPositionColor(new Vector2(-0.75f, -0.75f), RgbaFloat.Blue),
new VertexPositionColor(new Vector2(0.75f, -0.75f), RgbaFloat.Yellow),
// Top
new VertexPositionColor(new Vector3(-0.5f, +0.5f, -0.5f), RgbaFloat.Red),
new VertexPositionColor(new Vector3(+0.5f, +0.5f, -0.5f), RgbaFloat.Green),
new VertexPositionColor(new Vector3(+0.5f, +0.5f, +0.5f), RgbaFloat.Blue),
new VertexPositionColor(new Vector3(-0.5f, +0.5f, +0.5f), RgbaFloat.Yellow),
// Bottom
new VertexPositionColor(new Vector3(-0.5f,-0.5f, +0.5f), RgbaFloat.Red),
new VertexPositionColor(new Vector3(+0.5f,-0.5f, +0.5f), RgbaFloat.Green),
new VertexPositionColor(new Vector3(+0.5f,-0.5f, -0.5f), RgbaFloat.Blue),
new VertexPositionColor(new Vector3(-0.5f,-0.5f, -0.5f), RgbaFloat.Yellow),
// Left
new VertexPositionColor(new Vector3(-0.5f, +0.5f, -0.5f), RgbaFloat.Red),
new VertexPositionColor(new Vector3(-0.5f, +0.5f, +0.5f), RgbaFloat.Green),
new VertexPositionColor(new Vector3(-0.5f, -0.5f, +0.5f), RgbaFloat.Blue),
new VertexPositionColor(new Vector3(-0.5f, -0.5f, -0.5f), RgbaFloat.Yellow),
// Right
new VertexPositionColor(new Vector3(+0.5f, +0.5f, +0.5f), RgbaFloat.Red),
new VertexPositionColor(new Vector3(+0.5f, +0.5f, -0.5f), RgbaFloat.Green),
new VertexPositionColor(new Vector3(+0.5f, -0.5f, -0.5f), RgbaFloat.Blue),
new VertexPositionColor(new Vector3(+0.5f, -0.5f, +0.5f), RgbaFloat.Yellow),
// Back
new VertexPositionColor(new Vector3(+0.5f, +0.5f, -0.5f), RgbaFloat.Red),
new VertexPositionColor(new Vector3(-0.5f, +0.5f, -0.5f), RgbaFloat.Green),
new VertexPositionColor(new Vector3(-0.5f, -0.5f, -0.5f), RgbaFloat.Blue),
new VertexPositionColor(new Vector3(+0.5f, -0.5f, -0.5f), RgbaFloat.Yellow),
// Front
new VertexPositionColor(new Vector3(-0.5f, +0.5f, +0.5f), RgbaFloat.Red),
new VertexPositionColor(new Vector3(+0.5f, +0.5f, +0.5f), RgbaFloat.Green),
new VertexPositionColor(new Vector3(+0.5f, -0.5f, +0.5f), RgbaFloat.Blue),
new VertexPositionColor(new Vector3(-0.5f, -0.5f, +0.5f), RgbaFloat.Yellow),
};

ushort[] quadIndices = { 0, 1, 2, 3 };
ushort[] cubeIndices =
{
0,1,2, 0,2,3,
4,5,6, 4,6,7,
8,9,10, 8,10,11,
12,13,14, 12,14,15,
16,17,18, 16,18,19,
20,21,22, 20,22,23,
};

_vertexBuffer = factory.CreateBuffer(new BufferDescription(4 * VertexPositionColor.SizeInBytes, BufferUsage.VertexBuffer));
_indexBuffer = factory.CreateBuffer(new BufferDescription(4 * 2, BufferUsage.IndexBuffer));
_vertexBuffer = factory.CreateBuffer(new BufferDescription((uint)(vertices.Length * VertexPositionColor.SizeInBytes), BufferUsage.VertexBuffer));
_indexBuffer = factory.CreateBuffer(new BufferDescription((uint)(cubeIndices.Length * 2), BufferUsage.IndexBuffer));

_graphicsDevice.UpdateBuffer(_vertexBuffer, 0, quadVertices);
_graphicsDevice.UpdateBuffer(_indexBuffer, 0, quadIndices);
_graphicsDevice.UpdateBuffer(_vertexBuffer, 0, vertices);
_graphicsDevice.UpdateBuffer(_indexBuffer, 0, cubeIndices);

VertexLayoutDescription vertexLayout = new VertexLayoutDescription(
new VertexElementDescription("Position", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float2),
new VertexElementDescription("Position", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float3),
new VertexElementDescription("Color", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float4));

ShaderDescription vertexShaderDesc = new ShaderDescription(
Expand Down Expand Up @@ -156,14 +190,14 @@ static void CreateResources()
private const string VertexCode = @"
#version 450
layout(location = 0) in vec2 Position;
layout(location = 0) in vec3 Position;
layout(location = 1) in vec4 Color;
layout(location = 0) out vec4 fsin_Color;
void main()
{
gl_Position = vec4(Position, 0, 1);
gl_Position = vec4(Position, 1);
fsin_Color = Color;
}";

Expand All @@ -179,16 +213,27 @@ void main()
}";
}


struct VertexPositionColor
{
public Vector2 Position; // This is the position, in normalized device coordinates.
public RgbaFloat Color; // This is the color of the vertex.
public VertexPositionColor(Vector2 position, RgbaFloat color)
public Vector3 Position;
public RgbaFloat Color;
public VertexPositionColor(Vector3 position, RgbaFloat color)
{
Position = position;
Color = color;
}
public const uint SizeInBytes = 24;
public const uint SizeInBytes = 28;
}

//struct VertexPositionColor
//{
// public Vector2 Position; // This is the position, in normalized device coordinates.
// public RgbaFloat Color; // This is the color of the vertex.
// public VertexPositionColor(Vector2 position, RgbaFloat color)
// {
// Position = position;
// Color = color;
// }
// public const uint SizeInBytes = 24;
//}
}

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