save_render_texture.compute

#pragma kernel CSMain

RWTexture2D<float4> render_texture;
RWStructuredBuffer<float3> compute_buffer;
float time;

[numthreads(8,8,1)]
void CSMain (uint3 id : SV_DispatchThreadID)
{
	int ResX, ResY;
	render_texture.GetDimensions(ResX,ResY);
	float2 uv = float2 (id.x/(float)ResX,id.y/(float)ResY);
	float t = sin(time)*0.5+0.5;
	if (uv.x>t)
		render_texture[id.xy] = float4 (1.0,0.0,0.0,1.0);
	else
		render_texture[id.xy] = float4 (0.0,0.0,1.0,1.0);		
	compute_buffer[id.y*ResY+id.x] = render_texture[id.xy].rgb;	
}