Follow the description in HDK_ViewportGL3_Intro: “glH_InvObjectMatrix (mat4) - inverse transform matrix for the current object (world->local)”.
I multiply glH_InvObjectMatrix to vert's position.
Obviously, the result is not right.
I'd like to know why it is not working, what is the right way to get the desired result?
vert
in vec3 P; uniform mat4 glH_ObjectMatrix; uniform mat4 glH_ViewMatrix; uniform mat4 glH_ProjectMatrix; uniform mat4 glH_InvObjectMatrix; out parms { vec4 pos; } vsOut; void main() { vec4 pos; pos = vec4(P, 1.0); vsOut.pos = glH_InvObjectMatrix * pos; gl_Position = glH_ProjectMatrix * glH_ViewMatrix * glH_ObjectMatrix * pos; }
frag
in wparms { vec4 pos; } fsIn; uniform mat4 glH_InvObjectMatrix; out vec4 color; void main() { color = vec4(fsIn.pos.xyz, 1.0); }
