DirectX 9 HLSL与DirectX 10 HLSL：语法相同？

本文介绍了DirectX 9 HLSL与DirectX 10 HLSL：语法相同？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 29岁程序员，3月因学历无情被辞！ 过去一个月左右，我一直在努力学习DirectX。所以我一直在DirectX 9和10之间来回混合。我看到的两个主要变化之一是如何处理图形卡中的向量。 我注意到的一个重大变化是如何让GPU识别你的结构。在DirectX 9中，您定义了灵活的顶点格式。 您的典型设置如下： #define CUSTOMFVF（D3DFVF_XYZRHW | D3DFVF_DIFFUSE） 我相信等效的输入顶点描述： D3D10_INPUT_ELEMENT_DESC布局[] = { {POSITION，0 ，DXGI_FORMAT_R32G32B32_FLOAT，0，0， D3D10_INPUT_PER_VERTEX_DATA，0}， {COLOR，0，DXGI_FORMAT_R32G32B32A32_FLOAT，0，12， D3D10_INPUT_PER_VERTEX_DATA，0} }; 我注意到在DirectX 10它更具描述性。除此之外，什么是一些剧烈的变化，是HLSL语法是一样的？解决方案在DX9和DX10（和扩展名DX11）之间的HLSL语法本身没有根本的变化。 Codeka说，更改更多的是清理API和向通用化的道路（为了GPGPU）。但确实存在明显的区别： 显着差异： 要将常量传递给着色器，您现在必须通过常量缓冲区。 着色器都可以访问同一组固有函数（有一些例外，例如GS阶段）。整数和逐位操作现在完全符合IEEE标准（而不是通过浮点模拟）。您现在可以访问二进制转换，将int解释为float，float作为uint等。 纹理和取样器已解离。现在使用 g_myTexture.Sample（g_mySampler，texCoord） 而不是 tex2D（g_mySampledTexture，texCoord） 缓冲区：一种新型资源，用于访问不需要以随机访问方式进行过滤的数据，使用新的 Object.Load 系统价值语义： POSITION的扩展和扩展， DEPTH ， COLOR 语义，现在 SV_Position ， SV_Depth ， SV_Target 并添加每个阶段的新语义如 SV_InstanceID ， SV_VertexId 等。 我现在看到了。如果有新的东西出现，我会更新我的答案。 For the past month or so, I have been busting my behind trying to learn DirectX. So I've been mixing back back and forth between DirectX 9 and 10. One of the major changes I've seen in the two is how to process vectors in the graphics card.One of the drastic changes I notice is how you get the GPU to recognize your structs. In DirectX 9, you define the Flexible Vertex Formats.Your typical set up would be like this:#define CUSTOMFVF (D3DFVF_XYZRHW | D3DFVF_DIFFUSE)In DirectX 10, I believe the equivalent is the input vertex description:D3D10_INPUT_ELEMENT_DESC layout[] = { {"POSITION",0,DXGI_FORMAT_R32G32B32_FLOAT, 0 , 0, D3D10_INPUT_PER_VERTEX_DATA, 0}, {"COLOR",0,DXGI_FORMAT_R32G32B32A32_FLOAT, 0 , 12, D3D10_INPUT_PER_VERTEX_DATA, 0}};I notice in DirectX 10 that it is more descriptive. Besides this, what are some of the drastic changes made, and is the HLSL syntax the same for both? 解决方案 I would say there's no radical changes in the HLSL syntax itself between DX9 and DX10 (and by extension DX11).As codeka said, changes are more a matter of cleaning the API and a road toward generalization (for the sake of GPGPU). But there are indeed noticable differences:Noticable differences:To pass constant to the shaders, younow have to go through Constant Buffers.A Common-Shader Core: all types ofshader have access to the same set ofintrinsic functions (with some exceptions like for GS stage). Integer and bitwise operations are now fully IEEE-compliant (and not emulated via floating point). You have now access to binary casts to interpret an int as a float, a float as an uint etc..Textures and Samplers have been dissociated. You now use syntax g_myTexture.Sample( g_mySampler, texCoord )instead of tex2D( g_mySampledTexture, texCoord )Buffers: a new kind of resource for accessing data that need no filtering in a random access way, using the new Object.Load function.System-Value Semantics: a generalization and extensions of POSITION, DEPTH, COLOR semantics, that are now SV_Position, SV_Depth, SV_Target and add of per stage new semantics like SV_InstanceID, SV_VertexId, etc.That's all what I see for now. If something new pops up of my mind I will update my answer. 这篇关于DirectX 9 HLSL与DirectX 10 HLSL：语法相同？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！