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Add billboard effect to flag shine

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This commit is contained in:
Fabien Freling 2018-09-03 13:53:23 +02:00
parent 06bf7bf2ae
commit b67cbe9ba2
1 changed files with 6 additions and 5 deletions
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11
scenes/Goal.tscn
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@ -11,11 +11,12 @@ extents = Vector3( 0.584547, 2.22627, 0.659734 )
code = "shader_type spatial;
// TODO: Billboard effect
//void vertex() {
// UV=UV*uv1_scale.xy+uv1_offset.xy;
// MODELVIEW_MATRIX = INV_CAMERA_MATRIX * mat4(CAMERA_MATRIX[0],WORLD_MATRIX[1],vec4(normalize(cross(CAMERA_MATRIX[0].xyz,WORLD_MATRIX[1].xyz)),0.0),WORLD_MATRIX[3]);
//}
// BILLBOARD_FIXED_Y
// from: https://github.com/godotengine/godot/blob/master/scene/resources/material.cpp#L552
void vertex() {
MODELVIEW_MATRIX = INV_CAMERA_MATRIX * mat4(CAMERA_MATRIX[0],WORLD_MATRIX[1],vec4(normalize(cross(CAMERA_MATRIX[0].xyz,WORLD_MATRIX[1].xyz)),0.0),WORLD_MATRIX[3]);
MODELVIEW_MATRIX = MODELVIEW_MATRIX * mat4(vec4(length(WORLD_MATRIX[0].xyz),0,0,0),vec4(0,1,0,0),vec4(0,0,length(WORLD_MATRIX[2].xyz),0),vec4(0,0,0,1));
}
void fragment() {
float max_dist = 0.5; // maximum orthogonal distance from center in a [0,1] rectangle