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Fix beziers on GPU.
[ipdf/code.git]
/
src
/
shaders
/
bezier_texbuf_geom.glsl
diff --git
a/src/shaders/bezier_texbuf_geom.glsl
b/src/shaders/bezier_texbuf_geom.glsl
index
56dddbe
..
bb9a219
100644
(file)
--- a/
src/shaders/bezier_texbuf_geom.glsl
+++ b/
src/shaders/bezier_texbuf_geom.glsl
@@
-19,9
+19,9
@@
void main()
{
int bezierid = texelFetch(bezier_id_buffer_texture, objectid[0]).r;
vec2 boundssize = gl_in[1].gl_Position.xy - gl_in[0].gl_Position.xy;
- vec2 coeff0 = texelFetch(bezier_buffer_texture, bezierid*3).rg
+ gl_in[0].gl_Position.xy
;
- vec2 coeff1 = texelFetch(bezier_buffer_texture, bezierid*3+1).rg
* boundssize + gl_in[0].gl_Position.xy
;
- vec2 coeff2 = texelFetch(bezier_buffer_texture, bezierid*3+2).rg
* boundssize + gl_in[0].gl_Position.xy
;
+ vec2 coeff0 = texelFetch(bezier_buffer_texture, bezierid*3).rg;
+ vec2 coeff1 = texelFetch(bezier_buffer_texture, bezierid*3+1).rg;
+ vec2 coeff2 = texelFetch(bezier_buffer_texture, bezierid*3+2).rg;
vec2 boundspxsize = pixsize[0];
int blen = clamp(int(abs(boundspxsize.x)),2,100);
float invblen = 1.0f/float(blen);
@@
-32,7
+32,7
@@
void main()
float bernstein0 = t*t;
float bernstein1 = 2*t*oneminust;
float bernstein2 = oneminust*oneminust;
- gl_Position = vec4(
coeff0*bernstein0 + coeff1*bernstein1 + coeff2*bernstein2
, 0.0, 1.0);
+ gl_Position = vec4(
(coeff0*bernstein0 + coeff1*bernstein1 + coeff2*bernstein2) * boundssize + gl_in[0].gl_Position.xy
, 0.0, 1.0);
EmitVertex();
}
UCC
git Repository :: git.ucc.asn.au