OldTV.cg
资源名称:3dwind2.0.rar [点击查看]
上传用户:xhbjoy
上传日期:2014-10-07
资源大小:38068k
文件大小:1k
源码类别:
游戏引擎
开发平台:
Visual C++
- sampler Image: register(s0);
- sampler Rand: register(s1);
- sampler Noise: register(s2);
- float4 OldTV_ps(float2 pos: TEXCOORD1, float2 img: TEXCOORD0,
- uniform float distortionFreq: register(c3),
- uniform float distortionScale: register(c4),
- uniform float distortionRoll: register(c5),
- uniform float interference: register(c7),
- uniform float frameLimit: register(c8),
- uniform float frameShape: register(c0),
- uniform float frameSharpness: register(c1),
- uniform float time_0_X: register(c2),
- uniform float sin_time_0_X: register(c6)
- ) : COLOR {
- // Define a frame shape
- float f = (1 - pos.x * pos.x) * (1 - pos.y * pos.y);
- float frame = saturate(frameSharpness * (pow(f, frameShape) - frameLimit));
- // Interference ... just a texture filled with rand()
- float rand = tex3D(Rand, float3(1.5 * pos, time_0_X)) - 0.2;
- // Some signed noise for the distortion effect
- float noisy = tex3D(Noise, float3(0, 0.5 * pos.y, 0.1 * time_0_X)) - 0.5;
- // Repeat a 1 - x^2 (0 < x < 1) curve and roll it with sinus.
- float dst = frac(pos.y * distortionFreq + distortionRoll * sin_time_0_X);
- dst *= (1 - dst);
- // Make sure distortion is highest in the center of the image
- dst /= 1 + distortionScale * abs(pos.y);
- // ... and finally distort
- img.x += distortionScale * noisy * dst;
- float4 image = tex2D(Image, img);
- // Combine frame, distorted image and interference
- return frame * (interference * rand + image);
- }