1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
uniform float4x4 u_ViewProjection;
uniform float4x4 u_Transform;
struct VSInput
{
float3 position : POSITION;
float3 normal : NORMAL;
};
struct VSOutput
{
float4 position : SV_Position;
float3 normal : TEXCOORD0;
float3 worldPos : TEXCOORD1;
};
[shader("vertex")]
VSOutput vertexMain(VSInput input)
{
VSOutput output;
output.worldPos = mul(u_Transform, float4(input.position, 1.0)).xyz;
float3x3 normalMatrix = (float3x3)u_Transform;
output.normal = mul(normalMatrix, input.normal);
output.position = mul(u_ViewProjection, float4(output.worldPos, 1.0));
return output;
}
uniform float3 u_Color;
uniform float u_Specular;
uniform float u_Emission;
uniform float3 u_LightPos;
uniform float3 u_CameraPos;
uniform int u_IsSelected;
uniform float3 u_OutlineColor;
uniform float u_OutlineWidth;
SamplerCube u_HDRIEnvironment;
[shader("fragment")]
float4 fragmentMain(VSOutput input) : SV_Target
{
float3 normal = normalize(input.normal);
float3 lightDir = normalize(u_LightPos - input.worldPos);
float3 viewDir = normalize(u_CameraPos - input.worldPos);
float3 reflectDir = reflect(-lightDir, normal);
float3 hdriLight = u_HDRIEnvironment.Sample(normal).rgb;
float hdriIntensity = 0.3;
float diff = max(dot(normal, lightDir), 0.0);
float spec = pow(max(dot(viewDir, reflectDir), 0.0), 32.0);
float3 diffuse = u_Color * (diff + hdriIntensity * hdriLight);
float3 specular = float3(u_Specular, u_Specular, u_Specular) * spec;
float3 emission = u_Color * u_Emission;
float3 result = diffuse + specular + emission;
if (u_IsSelected > 0)
{
float ndotv = max(dot(normal, viewDir), 0.0);
float rim = 1.0 - ndotv;
float outlineMask = step(1.0 - u_OutlineWidth, rim);
result = lerp(result, u_OutlineColor, outlineMask);
}
return float4(result, 1.0);
}
|
