77 lines
1.8 KiB
Plaintext
77 lines
1.8 KiB
Plaintext
import Common;
|
|
import Parameters;
|
|
|
|
// Vertex input
|
|
struct VertexInput
|
|
{
|
|
uint instanceID : SV_InstanceID;
|
|
uint vertexID : SV_VertexID;
|
|
};
|
|
|
|
// Vertex output
|
|
struct VertexOutput
|
|
{
|
|
float4 positionCS : SV_POSITION;
|
|
uint triangleID : TRIANGLE_ID;
|
|
};
|
|
|
|
[shader("vertex")]
|
|
VertexOutput vert(VertexInput input)
|
|
{
|
|
// Initialize the output structure
|
|
VertexOutput output;
|
|
output = (VertexOutput)0;
|
|
|
|
// Evaluate the properties of this triangle
|
|
uint triangle_id = input.vertexID / 3;
|
|
uint local_vert_id = input.vertexID % 3;
|
|
|
|
// Operate the indirection
|
|
output.triangleID = pParams.indexedBisectorBuffer[triangle_id];
|
|
|
|
// Which vertex should be read?
|
|
local_vert_id = local_vert_id == 0 ? 2 : (local_vert_id == 2 ? 0 : 1);
|
|
float3 positionRWS = pParams.currentVertexBuffer[output.triangleID * 3 + local_vert_id];
|
|
|
|
// Apply the view projection
|
|
output.positionCS = mul(pViewParams.projectionMatrix, mul(pViewParams.viewMatrix, float4(positionRWS, 1.0)));
|
|
return output;
|
|
}
|
|
|
|
// Pixel input
|
|
struct PixelInput
|
|
{
|
|
float4 positionCS : SV_POSITION;
|
|
uint triangleID : TRIANGLE_ID;
|
|
};
|
|
|
|
[shader("pixel")]
|
|
float4 frag(PixelInput input) : SV_Target
|
|
{
|
|
return float4(0, 1, 0, 1);
|
|
}
|
|
|
|
[shader("compute")]
|
|
[numthreads(64, 1, 1)]
|
|
void deform(uint currentID: SV_DispatchThreadID)
|
|
{
|
|
if(currentID > pParams.indirectDrawBuffer[9] * 4)
|
|
return;
|
|
|
|
uint bisectorID = currentID / 4;
|
|
uint localVertexID = currentID % 4;
|
|
|
|
bisectorID = pParams.indexedBisectorBuffer[bisectorID];
|
|
|
|
currentID = localVertexID < 3 ? bisectorID * 3 + localVertexID : 3 * pParams.geometry.totalNumElements + bisectorID;
|
|
|
|
float3 positionWS = pParams.lebPositionBuffer[currentID];
|
|
|
|
float3 positionPS = positionWS;
|
|
|
|
float3 normalPS = float3(0, 1, 0);
|
|
|
|
float2 sampleUV = float2(0, 0);
|
|
|
|
pParams.currentVertexBuffer[currentID] = positionWS;
|
|
} |