Shader Model 3.0 Introduction

The Shader Model 3.0 shorthand for sm3.0,sm3.0 technology is a special effect that is fully supported by DirectX 9.0C level graphics. SM3.0 has enriched the programming model of game development to a great extent, which makes it easier for game developers to do better games and has many advantages. In a simple comparison, in the previous generation shader model, the maximum length of the Pixel shader program is 96 lines, the Vertex shader can support 256 lines of program, and shader Model 3.0 can support an infinitely long shader program, There are also many control pair statements added. SM3.0 allows the game to have greater programming space for better efficiency and image quality.

This aspect of the current graphics card is supported, but some older part of the graphics card is not supported.

ATI Card: Currently, most of the old ATI cards on the market do not support SM3.0 (including the X800 series), only the SM 2.0, and the HDR effect of a card is also far worse than the N card. (full support for next Generation R5xx series), Higher level graphics support! Don't worry too much, the current graphics card is supported.

Nvidia card aspect: only more than 6600 of the cards can support SM3.0 and HDR (6600,6800,7800), that is, in addition to the relatively now 6600 of the following antique-level graphics cards are not pointed out, 6600 to the current video card is supported, At present, almost no one will buy less than 6600 of the graphics card, has already been discontinued, here everyone just understand the next.

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