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Hello, Yesterday I read some documentation, and today I make a nice simple example of a: "texture+sampler+vertex shader+pixel shader" for FX Composer 2.5 It's a simple "effect/material" which uses a bitmap which is displayed on a plane. The code is written in a Delphi-samiliar style  (The bitmap needs to be set in the properties, see little manual below )// *** Begin of Example *** /* Basic Texture example (Also known (by me) as Spaceship Texture example, uses "Warpship.bmp") version 0.01 created on 21 september 2009 by Skybuck Flying Features: FX Composer 2.5 examples: + Basic 2d texture declaration with annotations + Basic 2d sampler declaration with sampler states + Basic vertex shader with: position 3d in/ 4d out texture coordinate0 2d in/ 2d out + Basic pixel shader with: texture coordinate 2d in pixel color 4d out + Uses nice input/output structures no stupid/confusing return values  + Uses nice naming convention, delphi like Usage: Step 1: Drag and drop material to object. Step 2: Select object. Step 3: Change SpaceShipTexture parameter in properties, and add/select an image. */ texture SpaceShipTexture < string ResourceName = ""; // must be set in fx composer gui/properties. string UIName = "SpaceShipTexture"; string ResourceType = "2D"; >; sampler2D SpaceShipSampler2D = sampler_state { Texture = <SpaceShipTexture>; MinFilter = Linear; MipFilter = Linear; MagFilter = Linear; AddressU = Clamp; AddressV = Clamp; }; float4x4 WorldViewProj : WorldViewProjection; struct TVertexShaderIn { float3 mPosition : POSITION; float2 mTextureCoordinate0 : TEXCOORD0; }; struct TVertexShaderOut { float4 mPosition : POSITION; float2 mTextureCoordinate0 : TEXCOORD0; }; void TVertexShader_Main( in TVertexShaderIn ParaIn , out TVertexShaderOut ParaOut ) { ParaOut.mPosition = mul(WorldViewProj, float4(ParaIn.mPosition.xyz, 1.0)); ParaOut.mTextureCoordinate0 = ParaIn.mTextureCoordinate0; } struct TPixelShaderIn { float2 mPosition : TEXCOORD0; }; struct TPixelShaderOut { float4 mColor : COLOR; }; void TPixelShader_Main( in TPixelShaderIn ParaIn, out TPixelShaderOut ParaOut ) { ParaOut.mColor = tex2D( SpaceShipSampler2D, ParaIn.mPosition ); } technique technique0 { pass p0 { CullFaceEnable = false; VertexProgram = compile vp40 TVertexShader_Main(); FragmentProgram = compile fp40 TPixelShader_Main(); } } // *** End of Example *** Bye, Skybuck. |
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Yup that seems to be the problem... it's suddenly working...
I guess the project had to be closed and re-opened... I shall post updated example version 0.02 shortly ! Bye, Skybuck. |
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Ok the exception seems to be a temporarely thing...
"Debugging pixels" is working... I can see the positions and I can see the color information... So far it seems limited to pixel shaders only ? I am not sure if it's possible to debug vertex shaders ?!? But so far this is pretty cool stuff ! Time to publish my update example in the next posting ! Bye, Skybuck =D |
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Here is the solution code for debugging support.
See comments for the solution ! // *** Begin of Code *** /* Basic Texture example (Also known (by me) as Spaceship Texture example, uses "Warpship.bmp") version 0.01 created on 21 september 2009 by Skybuck Flying Features: FX Composer 2.5 examples: + Basic 2d texture declaration with annotations + Basic 2d sampler declaration with sampler states + Basic vertex shader with: position 3d in/ 4d out texture coordinate0 2d in/ 2d out + Basic pixel shader with: texture coordinate 2d in pixel color 4d out + Uses nice input/output structures no stupid/confusing return values + Uses nice naming convention, delphi like Usage: Step 1: Drag and drop material to object. Step 2: Select object. Step 3: Change SpaceShipTexture parameter in properties, and add/select an image. */ /* version 0.02 created on 22 september 2009 by Skybuck Flying Example fixed to make debugging possible. (Void shaders do currently not work with the nvidia shader debugger) From the nvidia shader debugger documentation: " Shaders which return a value using only out parameters are currently not supported. You can work around this issue by making sure your shaders contain an explicit return statement. " I tried: void test() ( return; ) But that doesn't work. So code needs to be changed to: returntype test() { return variable of returntype } The necessary code changes have been made below. Also after making these code changes it requires a close/re-open of the project to make it work. (Or a recompile or double click on material not sure but after some fiddling it should work.) */ texture SpaceShipTexture < string ResourceName = ""; // must be set in fx composer gui/properties. string UIName = "SpaceShipTexture"; string ResourceType = "2D"; >; sampler2D SpaceShipSampler2D = sampler_state { Texture = <SpaceShipTexture>; MinFilter = Linear; MipFilter = Linear; MagFilter = Linear; AddressU = Clamp; AddressV = Clamp; }; float4x4 WorldViewProj : WorldViewProjection; struct TVertexShaderIn { float3 mPosition : POSITION; float2 mTextureCoordinate0 : TEXCOORD0; }; struct TVertexShaderOut { float4 mPosition : POSITION; float2 mTextureCoordinate0 : TEXCOORD0; }; // void routines not supported by nvidia shader debugger /* void TVertexShader_Main( in TVertexShaderIn ParaIn , out TVertexShaderOut ParaOut ) { ParaOut.mPosition = mul(WorldViewProj, float4(ParaIn.mPosition.xyz, 1.0)); ParaOut.mTextureCoordinate0 = ParaIn.mTextureCoordinate0; } */ // return routines/functions do work in nvidia shader debugger: TVertexShaderOut TVertexShader_Main( in TVertexShaderIn ParaIn ) { TVertexShaderOut ParaOut; ParaOut.mPosition = mul(WorldViewProj, float4(ParaIn.mPosition.xyz, 1.0)); ParaOut.mTextureCoordinate0 = ParaIn.mTextureCoordinate0; return ParaOut; } struct TPixelShaderIn { float2 mPosition : TEXCOORD0; }; struct TPixelShaderOut { float4 mColor : COLOR; }; // void not supported by nvidia shader debugger /* void TPixelShader_Main( in TPixelShaderIn ParaIn, out TPixelShaderOut ParaOut ) { ParaOut.mColor = tex2D( SpaceShipSampler2D, ParaIn.mPosition ); } */ // return routines/functions do work in nvidia shader debugger: TPixelShaderOut TPixelShader_Main( in TPixelShaderIn ParaIn ) { TPixelShaderOut ParaOut; ParaOut.mColor = tex2D( SpaceShipSampler2D, ParaIn.mPosition ); return ParaOut; } technique technique0 { pass p0 { CullFaceEnable = false; VertexProgram = compile vp40 TVertexShader_Main(); FragmentProgram = compile fp40 TPixelShader_Main(); } } // *** End of Code *** Bye, Skybuck. |
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