This works in OpenGL but not in DX9
float gridy = floor(texcoord.y*(BUFFER_HEIGHT));
float gridx = floor(texcoord.x*(BUFFER_WIDTH));
color = (int(gridy+gridx) & 1) < 0.5 ? tex2D(SamplerCL,float2(texcoord.x + Perspective * pix.x,texcoord.y)).rgb : tex2D(SamplerCR,float2(texcoord.x - Perspective * pix.x,texcoord.y)).rgb;
For DX 9 I have to write it like this.
float gridy = floor(texcoord.y*(BUFFER_HEIGHT));
float gridx = floor(texcoord.x*(BUFFER_WIDTH));
//wait What?Why?DX9 Workaround.......
color = (int((gridy+gridx)+(gridy+gridx)) & 2) < 0.5 ? tex2D(SamplerCL,float2(texcoord.x + Perspective * pix.x,texcoord.y)).rgb : tex2D(SamplerCR,float2(texcoord.x - Perspective * pix.x,texcoord.y)).rgb;
It feels like I'm missing something. Is this because the way API read the information? The two game I tested on are Quake 2 XP GL4+ and Borderlands 2 DX9
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