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add support for skeletal animation

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Atdunbg
2025-11-28 00:01:42 +08:00
parent 56d01b9c34
commit 018a4cb2c6
32 changed files with 2300 additions and 287 deletions
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23
Sandbox/assets/shaders/simplepbr.glsl
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@ -18,25 +18,41 @@ layout(location = 2) in vec3 a_Tangent;
layout(location = 3) in vec3 a_Binormal;
layout(location = 4) in vec2 a_TexCoord;
layout(location = 5) in ivec4 a_BoneIndices;
layout(location = 6) in vec4 a_BoneWeights;
uniform mat4 u_ViewProjectionMatrix;
uniform mat4 u_ModelMatrix;
const int MAX_BONES = 100;
uniform mat4 u_BoneTransforms[100];
out VertexOutput
{
vec3 WorldPosition;
vec3 Normal;
vec2 TexCoord;
mat3 WorldNormals;
vec3 Binormal;
} vs_Output;
void main()
{
vs_Output.WorldPosition = vec3(mat4(u_ModelMatrix) * vec4(a_Position, 1.0));
vs_Output.Normal = a_Normal;
mat4 boneTransform = u_BoneTransforms[a_BoneIndices[0]] * a_BoneWeights[0];
boneTransform += u_BoneTransforms[a_BoneIndices[1]] * a_BoneWeights[1];
boneTransform += u_BoneTransforms[a_BoneIndices[2]] * a_BoneWeights[2];
boneTransform += u_BoneTransforms[a_BoneIndices[3]] * a_BoneWeights[3];
vec4 localPosition = boneTransform * vec4(a_Position, 1.0);
vs_Output.WorldPosition = vec3(u_ModelMatrix * boneTransform * vec4(a_Position, 1.0));
vs_Output.Normal = mat3(boneTransform) * a_Normal;
vs_Output.TexCoord = vec2(a_TexCoord.x, 1.0 - a_TexCoord.y);
vs_Output.WorldNormals = mat3(u_ModelMatrix) * mat3(a_Tangent, a_Binormal, a_Normal);
vs_Output.Binormal = mat3(boneTransform) * a_Binormal;
gl_Position = u_ViewProjectionMatrix * u_ModelMatrix * vec4(a_Position, 1.0);
//gl_Position = u_ViewProjectionMatrix * u_ModelMatrix * vec4(a_Position, 1.0);
gl_Position = u_ViewProjectionMatrix * u_ModelMatrix * localPosition;
}
#type fragment
@ -62,6 +78,7 @@ in VertexOutput
vec3 Normal;
vec2 TexCoord;
mat3 WorldNormals;
vec3 Binormal;
} vs_Input;
layout(location=0) out vec4 color;