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#ifndef __FOG_INC
#define __FOG_INC
#include "cnlohr.cginc"
#include "interpolators.cginc"
#include "globals.cginc"
#if defined(_RAYMARCHED_FOG)
struct FogParams {
float steps;
float density;
texture2D dithering_noise;
texture3D density_noise;
float4 density_noise_scale;
};
struct FogResult {
float4 color;
};
float getRayLengthWorld()
{
float2 screen_uv;
float perspective_factor;
{
float3 full_vec_eye_to_geometry = i.worldPos - _WorldSpaceCameraPos;
float3 world_dir = normalize(i.worldPos - _WorldSpaceCameraPos);
float perspective_divide = 1.0 / i.pos.w;
perspective_factor = length(full_vec_eye_to_geometry * perspective_divide);
screen_uv = i.screenPos.xy * perspective_divide;
}
float eye_depth_world =
GetLinearZFromZDepth_WorksWithMirrors(
SAMPLE_DEPTH_TEXTURE(_CameraDepthTexture, screen_uv),
screen_uv) * perspective_factor;
}
FogResult raymarched_fog(v2f i, FogParams params)
{
float3 ro = _WorldSpaceCameraPos;
float3 rd = normalize(i.worldPos - ray_pos);
}
#endif // _RAYMARCHED_FOG
#endif // __FOG_INC
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