1 files changed, 12 insertions, 5 deletions
diff --git a/client/src/shaders/vertex_world_skin.wgsl b/client/src/shaders/vertex_world_skin.wgsl
index 633f06b..6e2b308 100644
--- a/client/src/shaders/vertex_world_skin.wgsl
+++ b/client/src/shaders/vertex_world_skin.wgsl
@@ -31,7 +31,7 @@ struct VertexOut {
 
 struct PushConst {
     modelviewproject: mat4x4<f32>,
-    modelview: mat4x4<f32>,
+    model: mat4x4<f32>,
 }
 
 @group(3) @binding(0) var<uniform> joints: array<mat4x4<f32>, 128>;
@@ -39,13 +39,20 @@ var<push_constant>                 pc: PushConst;
 
 @vertex
 fn main(vi: VertexIn) -> VertexOut {
-    let clip = pc.modelview * vec4(vi.position, 1.);
+    let pos_in = vec4(vi.position, 1.);
+    let j0 = vi.joint_weight.x * (joints[vi.joint_index.x] * pos_in);
+    let j1 = vi.joint_weight.y * (joints[vi.joint_index.y] * pos_in);
+    let j2 = vi.joint_weight.z * (joints[vi.joint_index.z] * pos_in);
+    let j3 = vi.joint_weight.w * (joints[vi.joint_index.w] * pos_in);
+    let position = j0 + j1 + j2 + j3;
+
+    let clip = pc.modelviewproject * position;
     let vo = VertexOut(
         clip,
-        normalize((pc.modelview * vec4(vi.normal, 0.)).xyz),
-        normalize((pc.modelview * vec4(vi.tangent, 0.)).xyz),
+        normalize((pc.model * vec4(vi.normal, 0.)).xyz),
+        normalize((pc.model * vec4(vi.tangent, 0.)).xyz),
         vi.texcoord,
-        (pc.modelview * vec4(vi.position, 1.)).xyz,
+        (pc.model * vec4(vi.position, 1.)).xyz,
     );
     return vo;
 }