Rev | Line | |
---|
[861] | 1 | // Vertex program to wave some grass about
|
---|
| 2 | // Simplistic, assumes base of the grass at 0
|
---|
| 3 | void grass_vp(float4 position : POSITION,
|
---|
| 4 | float3 normal : NORMAL,
|
---|
| 5 | float2 uv : TEXCOORD0,
|
---|
| 6 | out float4 oPosition : POSITION,
|
---|
| 7 | out float2 oUv : TEXCOORD0,
|
---|
| 8 | out float4 colour : COLOR,
|
---|
| 9 |
|
---|
| 10 | uniform float4x4 worldViewProj,
|
---|
| 11 | uniform float4 ambient,
|
---|
| 12 | uniform float4 objSpaceLight,
|
---|
| 13 | uniform float4 lightColour,
|
---|
| 14 | uniform float4 offset)
|
---|
| 15 | {
|
---|
| 16 | float4 mypos = position;
|
---|
| 17 | //offset = float4(0.5, 0, 0, 0);
|
---|
| 18 | mypos = mypos + offset * mypos.yyyy;
|
---|
| 19 | oPosition = mul(worldViewProj, mypos);
|
---|
| 20 |
|
---|
| 21 | oUv = uv;
|
---|
| 22 | // get vertex light direction (support directional and point)
|
---|
| 23 | float3 light = normalize(
|
---|
| 24 | objSpaceLight.xyz - (position.xyz * objSpaceLight.w));
|
---|
| 25 | float diffuseFactor = max(dot(normal, light), 0);
|
---|
| 26 |
|
---|
| 27 |
|
---|
| 28 | colour = ambient + diffuseFactor * lightColour;
|
---|
| 29 | }
|
---|
| 30 |
|
---|
Note: See
TracBrowser
for help on using the repository browser.