trying to do tiled draws

Data/MeshPartDrawData.cs

@@ -0,0 +1,35 @@
+using Microsoft.Xna.Framework;
+using Microsoft.Xna.Framework.Graphics;
+
+namespace Kav.Data
+{
+    public struct MeshPartDrawData : IGBufferDrawable, IUVDrawable, ICullable, IIndexDrawable
+    {
+        public MeshPart MeshPart { get; }
+        public Matrix TransformMatrix { get; }
+        public UVData UVData { get; }
+
+        public BoundingBox BoundingBox => MeshPart.BoundingBox;
+
+        public IndexBuffer IndexBuffer => MeshPart.IndexBuffer;
+        public VertexBuffer VertexBuffer => MeshPart.VertexBuffer;
+
+        public Vector3 Albedo => MeshPart.Albedo;
+        public float Metallic => MeshPart.Metallic;
+        public float Roughness => MeshPart.Roughness;
+
+        public Texture2D AlbedoTexture => MeshPart.AlbedoTexture;
+        public Texture2D NormalTexture => MeshPart.NormalTexture;
+        public Texture2D MetallicRoughnessTexture => MeshPart.MetallicRoughnessTexture;
+
+        public MeshPartDrawData(
+            MeshPart meshPart,
+            Matrix transformMatrix,
+            UVData uvData
+        ) {
+            MeshPart = meshPart;
+            TransformMatrix = transformMatrix;
+            UVData = uvData;
+        }
+    }
+}

Data/MeshSpriteDrawData.cs

@@ -2,23 +2,25 @@ using Microsoft.Xna.Framework;
 
 namespace Kav.Data
 {
-    public struct MeshSpriteDrawData
+    public struct MeshSpriteDrawData : ICullable
     {
         public MeshSprite MeshSprite { get; }
         public SpriteBillboardConstraint BillboardConstraint { get; }
         public Matrix TransformMatrix { get; }
-        public UVData UVOffset { get; }
+        public UVData UVData { get; }
+
+        public BoundingBox BoundingBox => MeshSprite.BoundingBox;
 
         public MeshSpriteDrawData(
             MeshSprite meshSprite,
             SpriteBillboardConstraint billboardConstraint,
             Matrix transformMatrix,
-            UVData offset
+            UVData uvData
         ) {
             MeshSprite = meshSprite;
             BillboardConstraint = billboardConstraint;
             TransformMatrix = transformMatrix;
-            UVOffset = offset;
+            UVData = uvData;
         }
     }
 }

Data/UVData.cs

@@ -15,5 +15,10 @@ namespace Kav.Data
             Percentage = subTextureDimensions / atlasDimensions;
             Offset = positionInAtlas / atlasDimensions;
         }
+
+        public Vector4 ToVector4()
+        {
+            return new Vector4(Offset.X, Offset.Y, Percentage.X, Percentage.Y);
+        }
     }
 }

Effects/DeferredPBR_GBufferEffect.cs

@@ -12,14 +12,12 @@ namespace Kav
         EffectParameter normalTextureParam;
         EffectParameter metallicRoughnessTextureParam;
 
+        EffectParameter uvOffsetAndDimensionsParam;
+
         EffectParameter albedoParam;
         EffectParameter metallicParam;
         EffectParameter roughnessParam;
 
-        EffectParameter numTextureRowsParam;
-        EffectParameter numTextureColumnsParam;
-
-        EffectParameter vertexShaderIndexParam;
         EffectParameter shaderIndexParam;
 
         Matrix world = Matrix.Identity;
@@ -30,8 +28,7 @@ namespace Kav
         float metallic;
         float roughness;
 
-        int numTextureRows = 1;
-        int numTextureColumns = 1;
+        Vector4 uvData;
 
         bool albedoTextureEnabled = false;
         bool metallicRoughnessMapEnabled = false;
@@ -133,24 +130,15 @@ namespace Kav
             }
         }
 
-        public int NumTextureRows
+        public Vector4 UVData
         {
-            get { return numTextureRows; }
+            get { return uvData; }
             set
             {
-                numTextureRows = value;
-                numTextureRowsParam.SetValue(numTextureRows);
-            }
+                uvData = value;
+                uvOffsetAndDimensionsParam.SetValue(uvData);
             }
 
-        public int NumTextureColumns
-        {
-            get { return numTextureColumns; }
-            set
-            {
-                numTextureColumns = value;
-                numTextureColumnsParam.SetValue(numTextureColumns);
-            }
         }
 
         public bool HardwareInstancingEnabled
@@ -210,18 +198,6 @@ namespace Kav
                 dirtyFlags &= ~EffectDirtyFlags.ViewProj;
             }
 
-            if ((dirtyFlags & EffectDirtyFlags.VertexShaderIndex) != 0)
-            {
-                int vertexShaderIndex = 0;
-
-                if (hardwareInstancingEnabled)
-                {
-                    vertexShaderIndex = 1;
-                }
-
-                vertexShaderIndexParam.SetValue(vertexShaderIndex);
-            }
-
             if ((dirtyFlags & EffectDirtyFlags.PixelShaderIndex) != 0)
             {
                 int shaderIndex = 0;
@@ -274,11 +250,9 @@ namespace Kav
             metallicParam = Parameters["MetallicValue"];
             roughnessParam = Parameters["RoughnessValue"];
 
-            numTextureRowsParam = Parameters["NumTextureRows"];
-            numTextureColumnsParam = Parameters["NumTextureColumns"];
+            uvOffsetAndDimensionsParam = Parameters["UVOffsetAndDimensions"];
 
             shaderIndexParam = Parameters["PixelShaderIndex"];
-            vertexShaderIndexParam = Parameters["VertexShaderIndex"];
         }
     }
 }

Effects/DiffuseLitSpriteEffect.cs

@@ -33,8 +33,7 @@ namespace Kav
         Matrix view = Matrix.Identity;
         Matrix projection = Matrix.Identity;
 
-        Vector2 uvOffset;
-        Vector2 subTextureDimensions;
+        Vector4 uvData;
 
         EffectDirtyFlags dirtyFlags = EffectDirtyFlags.All;
 
@@ -115,23 +114,13 @@ namespace Kav
             }
         }
 
-        public Vector2 UVOffset
+        public Vector4 UVData
         {
-            get { return uvOffset; }
+            get { return uvData; }
             set
             {
-                uvOffset = value;
-                dirtyFlags |= EffectDirtyFlags.UVOrDimensions;
-            }
-        }
-
-        public Vector2 SubTextureDimensions
-        {
-            get { return subTextureDimensions; }
-            set
-            {
-                subTextureDimensions = value;
-                dirtyFlags |= EffectDirtyFlags.UVOrDimensions;
+                uvData = value;
+                dirtyFlags |= EffectDirtyFlags.UVData;
             }
         }
 
@@ -168,14 +157,11 @@ namespace Kav
                 dirtyFlags &= ~EffectDirtyFlags.WorldViewProj;
             }
 
-            if ((dirtyFlags & EffectDirtyFlags.UVOrDimensions) != 0)
+            if ((dirtyFlags & EffectDirtyFlags.UVData) != 0)
             {
-                uvOffsetAndDimensionsParam.SetValue(new Vector4(
-                    UVOffset.X, UVOffset.Y,
-                    SubTextureDimensions.X, SubTextureDimensions.Y
-                ));
+                uvOffsetAndDimensionsParam.SetValue(uvData);
 
-                dirtyFlags &= ~EffectDirtyFlags.UVOrDimensions;
+                dirtyFlags &= ~EffectDirtyFlags.UVData;
             }
 
             if ((dirtyFlags & EffectDirtyFlags.PixelShaderIndex) != 0)

Effects/EffectHelpers.cs

@@ -11,7 +11,7 @@ namespace Kav
         VertexShaderIndex = 8,
         PixelShaderIndex = 16,
         ViewProj = 32,
-        UVOrDimensions = 64,
+        UVData = 64,
         All = -1
     }
 }

Effects/HLSL/DeferredPBR_GBufferEffect.fx

@@ -4,29 +4,31 @@ DECLARE_TEXTURE(AlbedoTexture, 0);
 DECLARE_TEXTURE(NormalTexture, 1);
 DECLARE_TEXTURE(MetallicRoughnessTexture, 2);
 
-BEGIN_CONSTANTS
+float3 AlbedoValue;
+float MetallicValue;
+float RoughnessValue;
 
-    float3 AlbedoValue                         _ps(c0)    _cb(c0);
-    float MetallicValue                        _ps(c1)    _cb(c1);
-    float RoughnessValue                       _ps(c2)    _cb(c2);
+float4 UVOffsetAndDimensions;
 
-    int NumTextureRows              _vs(c9)               _cb(c3);
-    int NumTextureColumns           _vs(c10)              _cb(c4);
-
-MATRIX_CONSTANTS
-
-    float4x4 World                  _vs(c0)               _cb(c7);
-    float4x4 ViewProjection         _vs(c4)               _cb(c11);
-
-END_CONSTANTS
+float4x4 World;
+float4x4 ViewProjection;
 
 struct VertexInput
 {
-    float4 Position : POSITION;
+    float3 Position : POSITION;
     float3 Normal   : NORMAL;
     float2 TexCoord : TEXCOORD;
 };
 
+struct VertexInstancedInput
+{
+    float3 Position : POSITION;
+    float3 Normal   : NORMAL;
+    float2 TexCoord : TEXCOORD0;
+    float3 Translation : TEXCOORD2;
+    float2 UVData : TANGENT;
+};
+
 struct PixelInput
 {
     float4 Position      : SV_POSITION;
@@ -51,7 +53,11 @@ PixelInput main_vs(VertexInput input)
 
     output.PositionWorld = mul(input.Position, World).xyz;
     output.NormalWorld = normalize(mul(input.Normal, World));
-    output.TexCoord = input.TexCoord;
+
+    float2 texCoord;
+    texCoord.x = (input.TexCoord.x / UVOffsetAndDimensions.z) + UVOffsetAndDimensions.x;
+    texCoord.y = (input.TexCoord.y / UVOffsetAndDimensions.w) + UVOffsetAndDimensions.y;
+    output.TexCoord = texCoord;
 
     float4x4 worldViewProjection = mul(World, ViewProjection);
     output.Position = mul(input.Position, worldViewProjection);
@@ -60,9 +66,7 @@ PixelInput main_vs(VertexInput input)
 }
 
 PixelInput instanced_vs(
-    VertexInput input, 
-    float3 Translation : TEXCOORD2,
-    float2 UVOffset    : TEXCOORD5
+    VertexInstancedInput input
 ) {
     PixelInput output;
 
@@ -70,7 +74,7 @@ PixelInput instanced_vs(
         float4(1, 0, 0, 0),
         float4(0, 1, 0, 0),
         float4(0, 0, 1, 0),
-        float4(Translation.x, Translation.y, Translation.z, 1)
+        float4(input.Translation.x, input.Translation.y, input.Translation.z, 1)
     );
 
     float4x4 worldViewProjection = mul(world, ViewProjection);
@@ -79,9 +83,9 @@ PixelInput instanced_vs(
     output.NormalWorld = mul(input.Normal, world);
 
     float2 texCoord;
-    texCoord.x = (input.TexCoord.x / NumTextureColumns + UVOffset.x);
-    texCoord.y = (input.TexCoord.y / NumTextureRows + UVOffset.y);
-    output.TexCoord = texCoord;
+    texCoord.x = (input.TexCoord.x / 8) + input.UVData.x;
+    texCoord.y = (input.TexCoord.y / 1) + input.UVData.y;
+    output.TexCoord = input.TexCoord;
 
     output.Position = mul(input.Position, worldViewProjection);
 
@@ -204,19 +208,6 @@ PixelOutput AlbedoMetallicRoughnessNormalMapPS(PixelInput input)
     return output;
 }
 
-VertexShader VSArray[2] =
-{
-    compile vs_3_0 main_vs(),
-    compile vs_3_0 instanced_vs()
-};
-
-int VSIndices[2] =
-{
-    0, 1
-};
-
-int VertexShaderIndex = 0;
-
 PixelShader PSArray[8] =
 {
     compile ps_3_0 NonePS(),
@@ -243,7 +234,7 @@ Technique GBuffer
 {
     Pass
     {
-        VertexShader = (VSArray[VSIndices[VertexShaderIndex]]);
+        VertexShader = compile vs_3_0 instanced_vs();
         PixelShader  = (PSArray[PSIndices[PixelShaderIndex]]);
     }
 }

Geometry/Interfaces/ICullable.cs

@@ -5,5 +5,6 @@ namespace Kav
     public interface ICullable
     {
         BoundingBox BoundingBox { get; }
+        Matrix TransformMatrix { get; }
     }
 }

Geometry/Interfaces/IGBufferDrawable.cs

@@ -1,3 +1,4 @@
+using Kav.Data;
 using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
 
@@ -12,8 +13,5 @@ namespace Kav
         Texture2D AlbedoTexture { get; }
         Texture2D NormalTexture { get; }
         Texture2D MetallicRoughnessTexture { get; }
-
-        int NumTextureRows { get; }
-        int NumTextureColumns { get; }
     }
 }

Geometry/Interfaces/IUVDrawable.cs

@@ -0,0 +1,9 @@
+using Kav.Data;
+
+namespace Kav
+{
+    public interface IUVDrawable
+    {
+        UVData UVData { get; }
+    }
+}

Geometry/MeshPart.cs

@@ -3,7 +3,7 @@ using Microsoft.Xna.Framework.Graphics;
 
 namespace Kav
 {
-    public class MeshPart : IIndexDrawable, IGBufferDrawable, ICullable, IHasVertexPositions
+    public class MeshPart : IIndexDrawable, IGBufferDrawable, IHasVertexPositions
     {
         public IndexBuffer IndexBuffer { get; }
         public VertexBuffer VertexBuffer { get; }
@@ -38,9 +38,6 @@ namespace Kav
         public float Metallic { get; set; } = 0.5f;
         public float Roughness { get; set; } = 0.5f;
 
-        public int NumTextureRows { get; set; } = 1;
-        public int NumTextureColumns { get; set; } = 1;
-
         public bool DisableAlbedoMap { get; set; } = false;
         public bool DisableNormalMap { get; set; } = false;
         public bool DisableMetallicRoughnessMap { get; set; } = false;

Geometry/MeshSprite.cs

@@ -4,7 +4,7 @@ using Microsoft.Xna.Framework.Graphics;
 
 namespace Kav
 {
-    public class MeshSprite : ICullable, IIndexDrawable
+    public class MeshSprite : IIndexDrawable
     {
         public enum FlipOptions
         {

Geometry/Model.cs

@@ -2,7 +2,7 @@ using Microsoft.Xna.Framework;
 
 namespace Kav
 {
-    public class Model : ICullable
+    public class Model
     {
         public Mesh[] Meshes { get; }
         public BoundingBox BoundingBox { get; }

Renderer.cs

@@ -159,20 +159,14 @@ namespace Kav
 
             var boundingFrustum = new BoundingFrustum(camera.View * camera.Projection);
 
-            foreach (var data in meshSpriteDrawDatas)
+            foreach (var data in FrustumCull(boundingFrustum, meshSpriteDrawDatas))
             {
                 var matrix = BillboardTransforms(camera, data.TransformMatrix, data.BillboardConstraint);
 
-                if (FrustumCull(boundingFrustum, data.MeshSprite, matrix))
-                {
-                    continue;
-                }
-
                 DiffuseLitSpriteEffect.NormalMapEnabled = data.MeshSprite.Normal != null;
 
                 DiffuseLitSpriteEffect.World = matrix;
-                DiffuseLitSpriteEffect.UVOffset = data.UVOffset.Offset;
-                DiffuseLitSpriteEffect.SubTextureDimensions = data.UVOffset.Percentage;
+                DiffuseLitSpriteEffect.UVData = data.UVData.ToVector4();
 
                 GraphicsDevice.Textures[0] = data.MeshSprite.Texture;
                 GraphicsDevice.Textures[1] = data.MeshSprite.Normal;
@@ -232,13 +226,13 @@ namespace Kav
         public static void CullAndRenderIndexed<T, U>(
             GraphicsDevice graphicsDevice,
             BoundingFrustum boundingFrustum,
-            IEnumerable<(T, Matrix)> drawableTransformPairs,
+            IEnumerable<T> drawables,
             U effect
         ) where T : IIndexDrawable, ICullable where U : Effect, IHasWorldMatrix
         {
-            foreach (var (drawable, transform) in FrustumCull(boundingFrustum, drawableTransformPairs))
+            foreach (var drawable in FrustumCull(boundingFrustum, drawables))
             {
-                effect.World = transform;
+                effect.World = drawable.TransformMatrix;
 
                 RenderIndexed(
                     graphicsDevice,
@@ -316,7 +310,7 @@ namespace Kav
         public void RenderDepthIndexed<T>(
             RenderTarget2D renderTarget,
             PerspectiveCamera camera,
-            IEnumerable<(T, Matrix)> drawableTransforms
+            IEnumerable<T> drawables
         ) where T : ICullable, IIndexDrawable
         {
             GraphicsDevice.SetRenderTarget(renderTarget);
@@ -328,7 +322,7 @@ namespace Kav
             CullAndRenderIndexed(
                 GraphicsDevice,
                 new BoundingFrustum(camera.View * camera.Projection),
-                drawableTransforms,
+                drawables,
                 SimpleDepthEffect
             );
         }
@@ -381,9 +375,6 @@ namespace Kav
             Deferred_GBufferEffect.Metallic = drawable.Metallic;
             Deferred_GBufferEffect.Roughness = drawable.Roughness;
 
-            Deferred_GBufferEffect.NumTextureRows = drawable.NumTextureRows;
-            Deferred_GBufferEffect.NumTextureColumns = drawable.NumTextureColumns;
-
             Deferred_GBufferEffect.AlbedoTexture = drawable.AlbedoTexture;
             Deferred_GBufferEffect.NormalTexture = drawable.NormalTexture;
             Deferred_GBufferEffect.MetallicRoughnessTexture = drawable.MetallicRoughnessTexture;
@@ -417,8 +408,8 @@ namespace Kav
         public void RenderGBufferIndexed<T>(
             RenderTargetBinding[] gBuffer,
             PerspectiveCamera camera,
-            IEnumerable<(T, Matrix)> drawableTransforms
-        ) where T : ICullable, IIndexDrawable, IGBufferDrawable {
+            IEnumerable<T> drawables
+        ) where T : ICullable, IIndexDrawable, IUVDrawable, IGBufferDrawable {
             GraphicsDevice.SetRenderTargets(gBuffer);
             GraphicsDevice.DepthStencilState = DepthStencilState.Default;
             GraphicsDevice.BlendState = BlendState.Opaque;
@@ -429,9 +420,9 @@ namespace Kav
 
             var boundingFrustum = new BoundingFrustum(camera.View * camera.Projection);
 
-            foreach (var (drawable, transform) in FrustumCull(boundingFrustum, drawableTransforms))
+            foreach (var drawable in FrustumCull(boundingFrustum, drawables))
             {
-                Deferred_GBufferEffect.World = transform;
+                Deferred_GBufferEffect.World = drawable.TransformMatrix;
 
                 Deferred_GBufferEffect.HardwareInstancingEnabled = false;
 
@@ -439,6 +430,8 @@ namespace Kav
                 Deferred_GBufferEffect.Metallic = drawable.Metallic;
                 Deferred_GBufferEffect.Roughness = drawable.Roughness;
 
+                Deferred_GBufferEffect.UVData = drawable.UVData.ToVector4();
+
                 Deferred_GBufferEffect.AlbedoTexture = drawable.AlbedoTexture;
                 Deferred_GBufferEffect.NormalTexture = drawable.NormalTexture;
                 Deferred_GBufferEffect.MetallicRoughnessTexture = drawable.MetallicRoughnessTexture;
@@ -684,7 +677,7 @@ namespace Kav
 
         public void RenderDirectionalShadowsIndexed<T>(
             DirectionalShadowMapData shadowMapData,
-            IEnumerable<(T, Matrix)> drawableTransforms
+            IEnumerable<T> drawableTransforms
         ) where T : ICullable, IIndexDrawable {
             // render the individual shadow cascades
             for (var i = 0; i < shadowMapData.NumShadowCascades; i++)
@@ -700,7 +693,7 @@ namespace Kav
         private void RenderDirectionalShadowMapIndexed<T>(
             DirectionalShadowMapData shadowMapData,
             int shadowCascadeIndex,
-            IEnumerable<(T, Matrix)> drawableTransforms
+            IEnumerable<T> drawables
         ) where T : ICullable, IIndexDrawable {
             GraphicsDevice.SetRenderTarget(shadowMapData.ShadowMaps[shadowCascadeIndex]);
             GraphicsDevice.DepthStencilState = DepthStencilState.Default;
@@ -712,7 +705,7 @@ namespace Kav
             CullAndRenderIndexed(
                 GraphicsDevice,
                 new BoundingFrustum(SimpleDepthEffect.View * SimpleDepthEffect.Projection),
-                drawableTransforms,
+                drawables,
                 SimpleDepthEffect
             );
         }
@@ -763,7 +756,7 @@ namespace Kav
 
         public void RenderPointShadowMapIndexed<T>(
             RenderTargetCube pointShadowCubeMap,
-            IEnumerable<(T, Matrix)> modelTransforms,
+            IEnumerable<T> drawables,
             PointLight pointLight
         ) where T : ICullable, IIndexDrawable {
             GraphicsDevice.DepthStencilState = DepthStencilState.Default;
@@ -831,7 +824,7 @@ namespace Kav
                 CullAndRenderIndexed(
                     GraphicsDevice,
                     new BoundingFrustum(LinearDepthEffect.View * LinearDepthEffect.Projection),
-                    modelTransforms,
+                    drawables,
                     LinearDepthEffect
                 );
             }
@@ -843,7 +836,7 @@ namespace Kav
             VertexBuffer instanceVertexBuffer,
             int numInstances,
             PointLight pointLight
-        ) where T : ICullable, IIndexDrawable
+        ) where T : IIndexDrawable
         {
             GraphicsDevice.DepthStencilState = DepthStencilState.Default;
             GraphicsDevice.BlendState = BlendState.Opaque;
@@ -917,31 +910,21 @@ namespace Kav
             }
         }
 
-        private static IEnumerable<(T, Matrix)> FrustumCull<T>(
+        private static IEnumerable<T> FrustumCull<T>(
             BoundingFrustum boundingFrustum,
-            IEnumerable<(T, Matrix)> cullableTransforms
+            IEnumerable<T> cullables
         ) where T : ICullable {
-            foreach (var (cullable, transform) in cullableTransforms)
+            foreach (var cullable in cullables)
             {
-                var boundingBox = TransformedBoundingBox(cullable.BoundingBox, transform);
+                var boundingBox = TransformedBoundingBox(cullable.BoundingBox, cullable.TransformMatrix);
                 var containment = boundingFrustum.Contains(boundingBox);
                 if (containment != ContainmentType.Disjoint)
                 {
-                    yield return (cullable, transform);
+                    yield return cullable;
                 }
             }
         }
 
-        private static bool FrustumCull<T>(
-            BoundingFrustum boundingFrustum,
-            T cullable,
-            Matrix transform
-        ) where T : ICullable {
-            var boundingBox = TransformedBoundingBox(cullable.BoundingBox, transform);
-            var containment = boundingFrustum.Contains(boundingBox);
-            return (containment == ContainmentType.Disjoint);
-        }
-
         private static BoundingBox TransformedBoundingBox(BoundingBox boundingBox, Matrix matrix)
         {
             var center = (boundingBox.Min + boundingBox.Max) / 2f;

VertexDeclarations.cs

@@ -12,7 +12,7 @@ namespace Kav
         public static VertexDeclaration PositionTextureOffsetInstanceDeclaration = new VertexDeclaration
         (
             new VertexElement(0, VertexElementFormat.Vector3, VertexElementUsage.TextureCoordinate, 2),
-            new VertexElement(12, VertexElementFormat.Vector2, VertexElementUsage.TextureCoordinate, 5)
+            new VertexElement(12, VertexElementFormat.Vector4, VertexElementUsage.Tangent, 0)
         );
     }
 }

Vertices/PositionTextureOffsetInstanceVertex.cs

@@ -16,16 +16,16 @@ namespace Kav
         }
 
         public Vector3 Translation { get; set; }
-        public Vector2 UVOffset { get; set; }
+        public Vector4 UVData { get; set; }
 
         public static readonly VertexDeclaration VertexDeclaration;
 
         public PositionTextureOffsetInstanceVertex(
             Vector3 translation,
-            Vector2 uvOffset
+            Vector4 uvData
         ) {
             Translation = translation;
-            UVOffset = uvOffset;
+            UVData = uvData;
         }
     }
 }