SharpDX is an open-source third-party managed DirectX wrapper.

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From Position/Target to Orientation/Elevation

I have an orbit camera class that calculates the camera position from Orientation/Elevation and distance from target. I decided to replace these initial values for the camera instantiation with simply ...
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1k views

How to set shader global variable in sharpdx without using Effect class

I am working with SharpDX, i thinking to try using (uniform) global variables for HLSL constants instead of constant buffers. But, in my code SharpDX's Effect class is not used: i use PixelShader ...
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344 views

Read part of texture using SharpDX

I have a Texture3D. I want to read a part of it from CPU side. (I'm using the SharpDX toolkit (v2.5.1).) My data is always 0, but the output shows no errors. This is the source texture: testTex = ...
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478 views

Instancing with the SharpDX toolkit

I am starting on the graphical portion of my project and before I begin I need to get Instancing working. I can do instancing with SharpDX, but not with the Toolkit Models. The main reason I want to ...
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306 views

Rendering Textured Terrain With SharpDX Toolkit [closed]

So i recently moved from XNA to SharpDX Toolkit and started with some basics. The 2d part was easy since nearly nothing has changed but im really struggeling with the 3d part. For example i wanted to ...
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396 views

Anti-aliasing a sphere

I render everything in my game in 2D with SpriteBatch with the exception of a spherical entity (orb) that I render as a spinning and dynamically lit (custom effect) sphere in 3D. I capture the sphere ...
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172 views

Why divide by w makes the pixel shader look better?

I'm writing a shader in HLSL (Direct3D11 with SharpDX) and after some computations I was trying to make a test and print the depth z of a specific point in my pixel shader, like this: myZ = ...
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233 views

SharpDX instancing with D3D11

Could anybody provide working code using SharpDX with D3D11, which does instancing and uses SharpDX's content pipeline? I have several problems there. I came to understand that one should use a ...
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295 views

ShaderBytecode Compiler one technique multiple passes

I have an effect code with a basic structure like technique TechniqueName { pass FirstPass { Profile = fx_4_0 VertexShader = RenderFirstVS GeometryShader = null ...
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100 views

How do I upscale my scene to a larger viewport?

I want to: Render my scene to a small viewport (some divisor of the full screen size). Stretch the rendered image to cover the full screen size. For example I want to render a complex, very slow ...
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353 views

When should I set a texture as a shader resource in order to read it?

I'm writing a Direct3D 11 HLSL shader with SharpDX. What I want to do is write the depth to a texture in one pass and read it in the next one. After declaring the texture, do I have to set the depth ...
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2answers
558 views

What is the depth that a pixel shader may output? Is it necessary to write Depth?

In DirectX11, what does the depth that a Pixel Shader can output mean? Does a pixel shader need to output a depth so that we "write" the depth? If not, why would we output it? For any doubts, I'm ...
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653 views

How to print Depth to a Texture2D and then read it in the next pass on a shader in DirectX11

I'm programming a two-pass effect in DirectX 11 (SharpDX). It's supposed to write the depth to a texture in the first pass and then use that texture to extract data on the second one in the pixel ...
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1answer
525 views

Difference between texture.Load() and texture.Sample() methods in DirectX?

The question is simply that: What is the difference between texture.Load() and texture.Sample() in DirectX? I've used a Texture2D to store the depth in a pass of a DirectX Shader (with SharpDX), and ...
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2answers
218 views

Alpha interpolation in a pixel shader

How does the interpolation in a fragment shader work when it comes to the alpha parameter? I'm programming a shader with SharpDX, DirectX11. My idea is to interpolate 2 3d points of a segment, so ...
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SharpDX: Render to bitmap using Direct2D 1.1

I have a command line application that I am currently using SharpDX (Direct2D 1.0) to render to PNG files. This is a window-less application. It's currently creating a SharpDX.WIC.WicBitmap, a ...
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3answers
581 views

Loaded Images are upside down

I'm using SharpDX Toolkit and load a png file with SharpDX.Toolkit.Graphics.Texture.Load(GraphicsDevice, Stream) If I apply the texture to another texture it's drawn upside down. The texture is: and ...
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3answers
840 views

Error on running exe, build using SharpDX

I have developed a windows application to read gamepad using SharpDx (XInput) and C# (VS 2008). The application is running smoothly in my development environment. But when i move to some other machine ...
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2answers
693 views

Memory Leak in SharpDX

one Thing I found out: Windows 7 produces a memory leak while using certain methods to access rendertargets. Why doesn't Windows 8 leak at this method? public class Game : SharpDX.Toolkit.Game { ...
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2answers
223 views

Orthographic (0,0) center

I want to display coordinates from 0 to n, where n is int > 0. The map is displayed correctly heaving it's center in the middle of the screen pointing top right. I would like to have it pointing ...
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2answers
1k views

SharpDx how to detect if Mouse Button is pressed?

I'm wondering how it's possible to detect if a mousebutton is pressed or released. var di = new DirectInput(); _mouse = new Mouse(di); _mouse.Acquire(); _mouseState = _mouse.GetCurrentState() All I ...
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1answer
277 views

Monogame/SharpDX Texture2D doesn't hold value

The problem I have discovered is most likely between classes, so I dont really have much option but to post the whole code here: https://www.dropbox.com/sh/smyw9t1ap3by2vd/pBX-aJJ-Qx I have been ...
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234 views

Measuring GPU time from managed code

To measure CPU code, I use a Stopwatch. Using a Stopwatch in the Draw method is meaningless for the GPU side of things since the CPU and the GPU run asynchronously. The questions is simple: Is it ...
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2answers
205 views

How is the result returned in SharpDX.DirectInput.Device.Acquire()?

The documentation of IDirectInputDevice8::Acquire says: Return Value If the method succeeds, the return value is DI_OK, or S_FALSE if the device was already acquired. If the method fails, ...
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0answers
249 views

Chunk Texture3D GPU generated vertices

I read GPU Gems 3 from NVidia about procedural terrain. It's quite interesting but not applicable for me because I only read the online version without the shipped DVD so I'm not able to download the ...
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372 views

Chunks - Drawing in a randomly generated and infinite world

I am working on a platformer that is going to have a map that is randomly generated and infinite in 3 directions: left, right, and down. I've figured out that I will need to separate this world into ...
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448 views

How to correctly Dispose a SourceVoice once its finished

i am starting to play a sound with XAudio2 and SourceVoice and once its finished, it should be correctly disposed to not have any leaks. i was expecting it to be something like this: ...
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1answer
218 views

SharpDX - How do I write multiple streams to Texture2D?

I'm working on a 3D map that is cut as a simple grid of textures. The idea is to draw only one object with all those textures, instead of having a tile object for each of them. Correct me if I'm ...
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1answer
1k views

DirectX11 Gamma Correction

I am writing a game using SharpDX with DirectX11 and I have been reading that it is important to apply gamma correction to my engine in order to perform correct linear lighting calculations. So I ...
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275 views

Sharp DX Identity Matrix, Matrix.Forward vector pointing at negative Z

I'm trying to take a steady grip on Sharp DX. Already done some work like translating, scaling and rotating objects. Now i have to calculate the rotation matrix using only direction vector and ...
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2answers
508 views

Error instantiating Texture2D in MonoGame for Windows 8 Metro Apps

I have an game which builds for WindowsGL and Windows8. The WindowsGL works fine, but the Windows8 build throws an error when trying to instantiate a new Texture2D. The Code: var texture = new ...
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318 views

XNA's SetData in a SharpDX Texture2D object in DirectX 11?

I'm trying to load a texture given a swap chain, and then populate that texture with data. I already have some bitmap data (although not sure if it is in the correct format) that I want to populate ...
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142 views

Weird rendering issue when applying lightmap through HLSL

I have a weird issue when trying to render the lightmaps in my game. Please see the following screenshots. Note how the scene looks up close with the lightmaps enabled. Note how that same part of ...
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811 views

Can not enable IME to capture Chinese characters in SharpDX

Just found that direct integration of IME is blocked in Windows 8, moving on to TSF now. By now, there is lack of Microsoft's Document about TSF, this will be hard. I am using SharpDX and the ...
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2answers
765 views

Camera frustum calculation coming out wrong

I'm trying to calculate a view/projection/bounding frustum for the 6 directions of a point light and I'm having trouble with the views pointing along the Y axis. Our game uses a right-handed, Y-up ...
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2answers
174 views

One or multiple VertexBuffers

I'm currently working on a personal project where I'm trying to load the levels and all of the geometry from the game "Medal of Honor Allied Assault" into my own C# code-base based on SharpDX. I ...
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1answer
2k views

Proper use of Dynamic Vertex Buffers for rapid update

I am creating a C#/SharpDx/DirectX10 application to plot line charts in a fast way. I have a prototype which uses Dynamic Vertex Buffers and fills a fixed-size buffer, say 1M vertices, with new data ...
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593 views

SharpDX (DirectX) - possible to measure Frame time?

I'm trying to benchmark various ways to draw 2D lines and have a snag. A D3D10Device that I draw with (and flush) doesn't appear to block, so I can't accurately measure frame rate (or time to render 1 ...
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2answers
2k views

Does Monogame on Windows Desktop use OpenGL or DirectX by default?

if i use monogame 3.0 beta on windows desktop, does it use the directx renderer (sharpdx) or the opengl renderer by default? if it uses directx is there away to make sharpdx call directly? thanks!
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415 views

DirectX Unproject troubles

I have an orthographic projection and I try to unproject a point from screen space. Following are the view and projection matrices: var w2 = ScreenWidthInPixels/2; var h2 = ScreenHeightInPixels/2; ...
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320 views

Doubling the DPI with a shader?

I'm developing a game where the map is generated with Perlin Noise, but on the CPU. I am generating some perlin noise onto a texture with a small size, and then I stretch it out to the whole screen to ...
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2answers
421 views

Best pathfinding for a 2D world made by CPU Perlin Noise, with random start- and destinationpoints?

I have a world made by Perlin Noise. It's created on the CPU for consistency between several devices (yes, I know it takes time - I have my techniques that make it fast enough). Now, in my game you ...
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2answers
3k views

Migration from XNA to SharpDX

My fear is that XNA has reached the end of the road. To keep up with the latest technology a shift to another game framework might be needed. We have many games in a large codebase, all based on XNA. ...
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1answer
739 views

SharpDx: using maximized RenderForm

I'm trying to learn DirectX via SharpDX, very new to this. What I want to do is be able to draw 2D shapes for a game I'm trying to make. So I started with the demo "MiniRect" that came with SharpDX. ...
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1answer
243 views

Direct2D gamma correction

I'm using direct2d and direct3d together and having an issue with gamma correction. My direct3d backbuffer is using an SRGB format and when I render images from direct2d onto the direct3d surface, ...
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1answer
836 views

Monogame/SharpDX - Shader parameters missing

I am currently working on a simple game that I am building in Windows 8 using MonoGame (develop3d). I am using some shader code from a tutorial (made by Charles Humphrey) and having an issue ...
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1answer
1k views

Pixel Shader, YUV-RGB Conversion failing

I am tasked with playing back a video hthat comes in in a YUV format as an overlay in a larger game. I am not a specialist in Direct3d, so I am struggling. I managed to get a shader working and am ...
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1k views

Rendering a Sprite with an Effect… how?

gettings tuck doing some 3d Rendering and I think you guys may have a lot more knowledge in it. I am tasked with basically rendering a texture onto a screen, preparing the way to apply graphical ...
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1answer
359 views

Are SharpDX's ContextDirect2D methods different from XNA's SpriteBatch?

I'm migrating from XNA to SharpDX in Win8. I noticed this DrawBitmap call in one of the samples. Is this different in some shape, way or form from XNA's SpriteBatch?
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3k views

SharpDX: best practice for multiple RenderForms?

I have an XNA app, but I really need to add multiple render windows, which XNA doesn't do. I'm looking at SharpDX (both for multi-window support and for DX11 / Metro / many other reasons). I decided ...